panasonic KX-FP302

© 2001 Kyushu Matsushita Electric Co., Ltd. Allrights reserved. Unauthorized copying anddistribution is a violation of law.

KX-FP302CX-WKX-FP302BX-WKX-FP303SA-W(for Asia and Middle Near East)

(for South Africa)

Compact Plain Paper FAX

ORDER NO. KMF0110513C3

1 INTRODUCTION 3

1.1. SAFETY PRECAUTIONS 3

1.2. INSULATION RESISTANCE TEST 3

1.3. FOR SERVICE TECHNICIANS 3

1.4. BATTERY CAUTION 3

1.5. AC CAUTION 4

1.6. PERSONAL SAFETY PRECAUTIONS 4

1.7. SERVICE PRECAUTIONS 5

1.8. FEATURES 6

1.9. OPTIONAL ACCESSORIES 6

1.10. SPECIFICATIONS 7

1.11. TEST CHART 8

1.12. LOCATION OF CONTROLS 10

1.13. CONNECTIONS 12

1.14. INSTALLATION 13

1.15. MAINTENANCE ITEMS AND COMPONENT LOCATIONS

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2 TROUBLESHOOTING GUIDE 28

2.1. TROUBLESHOOTING SUMMARY 28

2.2. USER RECOVERABLE ERRORS 29

2.3. TROUBLESHOOTING DETAILS 33

2.4. PROGRAMMING AND LISTS 89

2.5. TEST FUNCTIONS 104

3 DISASSEMBLY INSTRUCTIONS 110

3.1. HOW TO REMOVE THE PAPER TRAY AND

DOCUMENT FEEDER TRAY 110

3.2. HOW TO REMOVE THE BOTTOM FRAME 111

3.3. HOW TO REMOVE THE OPERATION PANEL BLOCK

112

3.4. HOW TO REMOVE THE OPERATION BOARD, HOOK

SWITCH BOARD AND LCD 113

3.5. HOW TO REMOVE THE THERMAL HEAD 115

3.6. HOW TO REMOVE THE PLATEN ROLLER 116

3.7. HOW TO REMOVE THE ANALOG, DIGITAL AND

POWER SUPPLY BOARDS AND AC INLET 117

3.8. HOW TO REMOVE THE MOTOR BLOCK AND THE

WIND GEAR ASSEMBLY 118

3.9. HOW TO REMOVE THE GEARS OF MOTOR BLOCK 119

3.10. HOW TO REMOVE THE SEPARATION ROLLER 120

3.11. HOW TO REMOVE THE IMAGE SENSOR (CIS) AND

DOCUMENT FEED ROLLERS 121

3.12. HOW TO REMOVE THE PICKUP ROLLER 122

3.13. INSTALLATION POSITION OF THE LEAD WIRES 123

4 HOW TO REPLACE THE FLAT PACKAGE IC 124

4.1. PREPARATION 124

4.2. FLAT PACKAGE IC REMOVAL PROCEDURE 124

4.3. FLAT PACKAGE IC INSTALLATION PROCEDURE 125

4.4. BRIDGE MODIFICATION PROCEDURE 125

5 CIRCUIT OPERATIONS 126

5.1. CONNECTION DIAGRAM 126

5.2. GENERAL BLOCK DIAGRAM 127

5.3. CONTROL SECTION 129

5.4. FACSIMILE SECTION 137

5.5. SENSORS AND SWITCHES 151

5.6. MODEM SECTION 156

5.7. DESCRIPTION OF BLOCK DIAGRAM IN ANALOG

SECTION 163

5.8. NCU SECTION 167

5.9. ITS (Integrated Telephone System) AND MONITOR

SECTION 169

5.10. TAM INTERFACE SECTION 170

5.11. OPERATION BOARD SECTION 175

5.12. LCD SECTION 176

5.13. POWER SUPPLY BOARD SECTION 177

6 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES

180

7 FIXTURES AND TOOLS 181

8 CABINET, MECHANICAL AND ELECTRICAL PARTS

LOCATION 182

8.1. OPERATION PANEL SECTION 182

8.2. UPPER CABINET SECTION 183

8.3. LOWER CABINET / P.C.B. SECTION 185

8.4. MOTOR SECTION 186

8.5. ACTUAL SIZE OF SCREWS 187

9 ACCESSORIES AND PACKING MATERIALS 188

10 REPLACEMENT PARTS LIST 189

10.1. CABINET AND ELECTRICAL PARTS 189

10.2. DIGITAL BOARD PARTS 191

10.3. ANALOG BOARD PARTS 193

10.4. OPERATION BOARD PARTS 196

10.5. POWER SUPPLY BOARD PARTS 196

10.6. HOOK SWITCH BOARD PARTS 197

10.7. FIXTURES AND TOOLS 197

11 PRINTED CIRCUIT BOARD 198

11.1. DIGITAL BOARD (PCB1) : Bottom View 198

11.2. DIGITAL BOARD (PCB1) : Component View 199

11.3. ANALOG BOARD (PCB2) : Bottom View 200

11.4. ANALOG BOARD (PCB2) : Component View 201

11.5. OPERATION (PCB3) / HOOK SW (PCB5) BOARD:

Bottom View 202

11.6. OPERATION (PCB3) / HOOK SW (PCB5) BOARD:

Component View 203

11.7. POWER SUPPLY BOARD (PCB4) 204

12 FOR THE SCHEMATIC DIAGRAMS 205

13 SCHEMATIC DIAGRAM 206

13.1. DIGITAL BOARD (PCB1) 206

13.2. ANALOG BOARD (PCB2) 208

13.3. OPERATION (PCB3) / HOOK SW (PCB5) BOARD 211

13.4. POWER SUPPLY BOARD (PCB4) 212

CONTENTS Page Page

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KX-FP302CX-W / KX-FP302BX-W / KX-FP303SA-W

1 INTRODUCTION

1.1. SAFETY PRECAUTIONS 1. Before servicing, unplug the AC power cord to prevent an electric shock.

2. When replacing parts, use only the manufacturer´s recommended components.

3. Check the condition of the power cord. Replace if wear or damage is evident.

4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.

5. Before returning the serviced equipment to the customer, be sure to perform the following insulation resistance test to preventthe customer from being exposed to shock hazards.

1.2. INSULATION RESISTANCE TEST 1. Unplug the power cord and short the two prongs of the plug with a jumper wire.

2. Turn on the power switch.

3. Measure the resistance value with an ohmmeter between the jumpered AC plug and each exposed metal cabinet part

(screw heads, control shafts, bottom frame, etc.).

Note: Some exposed parts may be isolated from the chassis by design. These will read infinity.

4. If the measurement is outside the specified limits, there is a possibility of a shock hazard.

1.3. FOR SERVICE TECHNICIANSICs and LSIs are vulnerable to static electricity.

When repairing, the following precautions will help prevent recurring malfunctions.

1. Cover the plastic part´s boxes with aluminum foil.

2. Ground the soldering irons.

3. Use a conductive mat on the worktable.

4. Do not touch the IC or LSI pins with bare fingers.

1.4. BATTERY CAUTIONDanger of explosion if the battery is replaced incorrectly. Replace only with the same or equivalent type recommended by themanufacturer. Discard used batteries according to following caution:

Disposal of lithium batteries should be performed by permitted, professional disposal firms knowledgeable in state governmentfederal and local hazardous materials and hazardous waste transportation and disposal requirements.

A battery continues to have no transportation limitations as long as it is separated to prevent short circuits and packed in strongpackaging.

Commercial firms that dispose of any quantity of lithium cells should have a mechanism in place to account for their ultimatedisposition. This is a good practice for all types of commercial or industrial waste.

Recommend Type Number:

PFSU1004Z (BAT501) Manufactured by TOSHIBA

CR2032 (BAT501) Manufactured by MATSUSHITA

PQPCR2032H09 (BAT501) Manufactured by SONY

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1.5. AC CAUTIONFor safety, before closing the lower cabinet, please make sure of the following precautions.

1. The earth lead is fixed with the screw.

2. The AC connector is connected properly.

3. Wrap the earth lead around the core 3 times.

4. Wrap the AC lead around the core 2 times.

1.6. PERSONAL SAFETY PRECAUTIONS

1.6.1. MOVING SECTIONS OF THE UNIT

Be careful not to let your hair, clothes, fingers, accessories, etc., become caught in any moving sections of the unit.

The moving sections of the unit are the rollers and a gear. There is a separation roller and a document feed roller which are rotatedby the document feed motor. A gear rotates the two rollers. Be careful not to touch them with your hands, especially when the unitis operating.

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1.6.2. LIVE ELECTR ICAL SECTIONS

All the electrical sections of the unit supplied with AC power by the AC power cord are live.

Never disassemble the unit for service with the AC power supply plugged in.

CAUTION:

AC voltage is supplied to the primary side of the power supply unit. Therefore, always unplug the AC power cord beforedisassembling for service.

1.7. SERVICE PRECAUTIONS

1.7.1. PRECAUTIONS TO PREVENT DAMAGE FROM STATIC ELECTRICITY

Electrical charges accumulate on a person. For instance, clothes rubbing together can damage electric elements or change theirelectrical characteristics. In order to prevent static electricity, touch a metallic part that is grounded to release the static electricity.Never touch the electrical sections such as the power supply unit, etc.

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General

· Help function

Please refer to WHEN YOU DON´T KNOW HOW TOOPERATE THE UNIT, USE THE HELP FUNCTION.(P.28)to print below features.

Display:

− − QUICK SET UP

− − FEATURE LIST

− − DIRECTORY

− − FAX RECIVING

− − COPIER

− − REPORTS

· LCD (Liquid Crystal Display) readout

· TAM (Telephone answering machine) interface

Plain Paper Facsimile Machine

· 12 second transmission speed *

· Letter / Legal / A4, G3 compatible

· Automatic document feeder (15 sheets)

· Fax pager call

· Quick scan

· Resolution: Standard, Fine/Photo (64 level), Super fine

· Broad cast with Navigator

· 150-sheet paper capacity (20 lb.)

· Automatic fax/phone switching

· Distinctive ring detection **

* The 12 second speed is based upon the ITU-T No. 1 TestChart on the condition that memory transmission is performed.

** Subscription to distinctive ring services is required.

Large Memor y... Performed by DRAM

Approx. 25 pages of memory transmission

Approx. 28 pages of memory reception

(Based on ITU-T No. 1 Test Chart in standard resolution,without using the Error Correction Mode.)

Integrated Telephone System

· On-hook dialing

· Monitor speaker

· Voice muting

· Redialing function

· 100-Station telephone directory with Navigator

Enhanced Copier Function

· Multi-copy function (up to 99 copies)

· Enlargement and reduction

· Collate

· 64-Level halftone

1.8. FEATURES

1.9. OPTIONAL ACCESSORIESThe included film cartridge is 10 meters (32 1/2’) long. We recommend that you buy full size replacement film cartridge - 100 meters(328’) continuous use of your unit. For best results, use genuine Panasonic replacement film Model No. KX-FA137A.

Model No. Description SpecificationsKX-FA137A Film cartridge 216 mm × 100 m (8 1/2”×328’)

(prints about 300 A4 size pages) · Replacement film (KX-FA136A: cartridge not included) is also

available if you want to replace the ink film only.

Note:

The ink film is not reusable. Do not rewind and use the ink film again.

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1.10. SPECIFICATIONSApplicable Lines: Public Switched Telephone NetworkDocument Size: Max. 216 mm (8 1/2") in width

Max. 600 mm (23 5/8") in lengthEffective Scanning Width: 208 mm (8 3/16")Recording Paper Size: Letter: 216×279 mm (8 1/2"×11")

Legal: 216×356 mm (8 1/2"×14")

A4: 210×297 mm (8 1/4"×11 11/16")Effective Printing Width: 208 mm (8 3/16")Transmission Time*: Approx. 12 s/page (Original mode)**Scanning Density: Horizontal:

8 pels/mm (203 pels/inch)

Vertical:

3.85 lines/mm (98 lines/inch)—STANDARD mode

7.7 lines/mm (196 lines/inch)—FINE / PHOTO mode

15.4 lines/mm (392 lines/inch)—SUPER FINE ModeHalftone Level: 64-levelScanner Type: Contact Image Sensor (CIS)Printer Type: Thermal Transfer on Plain PaperData Compression System: Modified Huffman (MH), Modified READ (MR)Modem Speed: 9,600/7,200/4,800/2,400 bps; Automatic FallbackOperating Environment: 5—35°C (41—95°F), 20—80 % RH (Relative Humidity)Dimensions (H×W×D): 143×325×308 mm (5 5/8" × 12 13/16" × 12 1/8")Mass (Weight): Approx. 4.1 kg (9 lb.)Power Consumption: Standby: Approx. 3.5 W

Transmission: Approx. 14 W

Reception: Approx. 42 W (When receiving a 20% black document)

Copy: Approx. 42 W (When copying a 20% black document)

Maximum: Approx. 135 W (When copying a 100% black document)Power Supply: 220-240 V AC, 50/60 HzMemory Capac ity: Approx. 25 pages memory transmission

Approx. 28 pages memory reception

(Based on ITU-T No. 1 Test Chart in standard resolution, without using the ErrorCorrection Mode.)

* Transmission speed depends upon the contents of the pages, resolution, telephone line conditions and capability of the otherparty’s machine.

** The 12 second speed is based upon the ITU-T No. 1 Test Chart and original mode. (Refer to TEST CHART (P.8).) If thecapability of the other party´s machine is inferior to your unit, the transmission time may be longer.

Note:

· Any details given in these instructions are subject to change without notice.

· The pictures and illustrations in these instructions may vary slightly from the actual product.

Design and specifications are subject to change without notice.

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1.11. TEST CHART

1.11.1. ITU-T No.1 TEST CHART

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1.11.2. ITU-T No.2 TEST CHART

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1.12. LOCATION OF CONTROLS

1.12.1. OVERVIEW

Note:

· The document and recording paper will be ejected from the front of the unit. Install the unit on a desk or floor with a smoothsurface and do not place anything in front of the unit.

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1.12.2. CONTROL PANEL

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1.13. CONNECTIONS

(1) Connect the handset cord.

(2) Connect the telephone line cord.

(3) Connect the power cord.

· When the power is turned on for the first time, the unit will print some basic information.

Caution:

When you operate this product, the power outlet should be near the product and easily accessible.

Note:

· If you want to connect an answering machine to the unit, see Operating Instructions.

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1.14. INSTALLATION

1.14.1. INSTALLATION SPACE

The space required to install the unit is shown below.

The dimensions given are necessary for the unit to operate efficiently.

Note:

· Avoid excessive heat or humidity.

· Use the unit within the following ranges of temperature and humidity.

· Ambient temperature: 5°C to 35°C

· Relative humidity: 20% to 80% (without condensation)

· Power cord length should be less than 5 meters (16.4 feet). Using a longer cord may reduce the voltage or causemalfunctions.

· Avoid direct sunlight.

· Do not install near devices which contain magnets or generate magnetic fields.

· Do not subject the unit to strong physical shock or vibration.

· Keep the unit clean. Dust accumulation can prevent the unit from functioning properly.

· To protect the unit from damage, hold both sides when you move it.

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1.14.2. INSTALLING THE PAPER TRAY

Insert two tabs on the paper tray into one slots on the back of the unit.Note:

· Do not place the unit in areas where the paper tray may beobstructed by a wall, etc.

To use A4 size paper-Install the A4 paper guides to the paper tray (see below).

(1)[A] Insert the bottom tab on the A4 paper guide (left) into the lower slot.[B] Press the guide into the upper slot.

· If the A4 paper guide cannot be installed, make sure the paper trayhas been fitted correctly.

(2)[A] Insert the bottom tab on the A4 paper guide (right) into the lowerslot.[B] Press the guide into the upper slot.

Note: · When you remove the paper tray, be sure to take off A4 paper

guides first, in order not to damage them.

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1.14.3. INSTALL THE PAPER STACKER

(1) Lift the front of the unit and hold the aluminum sheet upto prevent it being bent by the paper stacker whileinserting the paper stacker into the side slots.

(2) Confirm that the paper stacker is locked into the centerslots and slide back.

(3) Slide the paper stacker forward until it stops.

To use Legal Size Paper

Press the dotted area on the paper stacker extender andopen the paper stacker extender.

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1.14.4. INSTALLING THE RECORDING PAPER

Letter*, legal** or A4*** size recording paper can be loaded. The unit can hold up to 150 sheets of 75 g/m2 (20lb.) paper. You mayuse 60 g/m2 to 90 g/m2 (16 lb. to 24 lb.) paper as well. Set the recording paper size (code #016 on PROGRAM MODE TABLE(P.67)) according to the paper size you use, after connecting the unit.

· The unit is set for A4 size paper by default. If you want to use letter or legal size paper, change the setting (code #016 onPROGRAM MODE TABLE (P.67)).

*Letter=216 mm × 279 mm (8 1/2” × 11”)

**Legal=216 mm × 356 mm (8 1/2" × 14")

***A4=210 mm × 297 mm (8 1/4" × 11 11/16")

To use A4 size paper, install the A4 paper guides to the paper tray. Refer to INSTALLING THE PAPER TRAY (P.14).

(1) Fan the stack of paper to prevent a paper jam.

(2) Pull the tension bar forward and hold open while insertingthe paper.

· The height of the stack of the paper should not exceedthe upper limit o the paper tray, otherwise the papermay jam or multi-feed.

· The paper should not be over the tab.

· If the paper is not inserted correctly, readjust the paper,or the paper may jam.

Note for recording paper:

· Avoid paper with a cotton and/or fiber content that is over 20%, such as letterhead paper or paper used forresumes.

· Do not use different types or thicknesses of paper at the same time. This may cause a paper jam.

· Avoid extremely smooth or shiny paper that is highly textured.

· Avoid paper that is coated, damaged or wrinkled.

Note:

· Avoid double-sided printing

· Do not use paper printed from this unit for double-sided printing with other copiers or printers, or the paper may jam.

· Do not reinsert the ejected paper into the recording paper exit.

· Some paper only accepts print on one side. Try using the other side of paper if you are not happy with the print quality.

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1.14.5. ADDING PAPER TO THE PAPER TRAY

(1) Pull the tension bar forward and hold open while removingall of the installed paper.

(2) Add paper to the removed paper and straighten.

(3) Fan the stack of paper.

(4) Pull the tension bar forward and hold open while insertingthe paper.

1.14.6. DOCUMENTS THE UNIT CAN FEED

Note:

· Remove chips, staples or other similar fasteners objects.

· Check that ink, paste or correction fluid has dried.

· Do not send the following types of documents. Use copies for fax transmission.

— Chemically treated paper such as carbon or carbon less duplicating paper

— Electrostatically charged paper

— Heavily curled, creased or torn paper

— Paper with a coated surface

— Paper with a faint image

— Paper with printing on the opposite side that can be seen through the front (e.q. newspaper)

· To transmit the document(s) whose width is less than the letter size (216 mm) or A4 size (210 mm), we recommend usinga copier machine. Copy the original document on to a letter size paper, then transmit the copied document.

To transmit more than 15 pages at a time

· Insert the first 15 pages of the document. Add the other pages (15 at a time) before the last page is fed into the unit.

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The logo can be your company, division or name.

1.14.7. SETTING YOUR LOGO

(1) Press .

Display:

(2) Press or until the following is displayed.

(3) Press .

(4) Enter your logo, up to 30 characters, by using the dialkeypad.

Example: Bill

a. Press twice.

b. Press six times.

c. Press six times.

d. Press to move the cursor to the next space andpress six times.

(5) Press .

· The next feature will be displayed.

(6) Press .

Note:

· You can enter your logo by pressing or in step (4). In this case, press to move the cursor.

To correct a mistake · Press or to move the cursor to the incorrect character,

and make the correction.

To insert a character 1. Press or to move the cursor to the position to the right

of where you want to insert the character.

2. Press (Insert) to insert a space and enter the character.To delete a character · Move the cursor to the character you want to delete and press

.

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1.14.7.1. TO SELECT CHARA CTERS WITH THE DIAL KEYPAD

Pressing the dial keys will select a character as shown below.

1.14.7.2. TO SELECT CHARA CTERS USING or

Instead of pressing the dial keys, you can select characters using or .

(1) Press or until the desired character isdisplayed.

(2) Press to move the cursor to the next space.

· The character displayed in step 1 is inserted.

(3) Return to step 1 to enter the next character.

Display order of characters

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1.14.8. REPLACING THE FILM OR FILM CARTRIDGE

When the unit detects the end of the film, the following message will be displayed.

Display:

The ink film is empty. Install a new film or film cartridge. The following is available for replacement:

Model No. KX-FA137A: film cartridge

· Replacement film (KX-FA136A: cartridge not included) is also available if you want to replace the ink film only.

Refer to OPTIONAL ACCESSORIES.(P.6)

1.14.8.1. USING THE FILM CARTRIDGE (KX-FA137A)

(1) Open the cover by pressing the cover open button.

(2) Remove the used film cartridge.

(3) Remove the film stopper from the new film cartridge bypressing it up.

(4) If the film is slack, tighten it by winding the gears.

(5) Turn the film cartridge over so that the attached stickeris facing up.

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(6) Insert the new film cartridge by first placing the front ofthe cartridge into the unit and then lowering the back ofthe cartridge, where there is an attached sticker, intoplace.

(7) Close the cover securely by pushing down on the dottedarea at both ends.

· The unit will check that there is no slack on the inkfilm. The following message will be displayed.

Display:

1.14.8.2. USING THE FILM (KX-FA136A)


(2) Remove the used film cartridge.

(3) Unlock the four gears by (A) pulling the top side gears(blue and green gears) forward and (B) lifting up thebottom side gears (green gears). Remove the used film.

(4) Remove the four gears from the used film cores.

Caution:

· The film is not reusable. To order a new film,refer to OPTIONAL ACCESSORIES (P.6).

(5) Insert the blue gear into the blue core of the new film.

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(6) Insert the three green gears into the remaining cores ofthe new film.

(7) Insert the film into the cartridge so that the blue gearmatches the “BLUE“ on the cartridge.

· The shiny side should be facing up.

(8) Lock the four gears of the film by (A) pushing back thetop side gears and (B) pushing down the bottom sidegears until they lock into place.

· If the ink film is slack, tighten it by winding thebottom side gears.

(9) Insert the new film cartridge by first placing the front ofthe cartridge into the unit and then lowering the back ofthe cartridge, where there is attached sticker, into place.


· The unit will check that there is no slack on the inkfilm. The following will be displayed.

Display:

· If the following is displayed, the film is not insertedcorrectly.

Reinsert it correctly.

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1.15. MAINTENANCE ITEMS AND COMPONENT LOCATIONS

1.15.1. OUTLINE

MAINTENANCE AND REPAIRS ARE PERFORMED USING THE FOLLOWING STEPS.

1. Periodic maintenance

Inspect the equipment periodically and if necessary, clean any contaminated parts.

2. Check for breakd owns

Look for problems and consider how they arose.

If the equipment can be still used, perform copying, self testing or communication testing.

3. Check equipment

Perform copying, self testing and communication testing to determine if the problem originates from the transmitter, receiver orthe telephone line.

4. Determine causes

Determine the causes of the equipment problem by troubleshooting.

5. Equipment repairs

Repair or replace the defective parts and take appropriate measures at this stage to ensure that the problem will not recur.

6. Confirm normal operation of the equipment

After completing the repairs, conduct copying, self testing and communication testing to confirm that the equipment operatesnormally.

7. Record keeping

Make a record of the measures taken to rectify the problem for future reference.

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1.15.2. MAINTENANCE CHECK ITEMS/COMPONENT LOCATIONS

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1.15.2.1. MAINTENANCE LIST

NO. OPERATION CHECK REMARKS1 Document Path Remove any foreign matter such as paper. —2 Rollers If the roller is dirty, clean it with a damp cloth then dry

thoroughly.Refer to MAINTENANCE (P.26).

3 Platen Roller If the platen is dirty, clean it with a damp cloth then drythoroughly. Remove the paper and film cartridge beforecleaning.

—

4 Thermal Head If the thermal head is dirty, clean the printing surface with acloth moistened with denatured alcohol (alcohol withoutwater), then dry thoroughly.

Refer to MAINTENANCE (P.26).

5 Sensors Hook switch (SW401), Paper top sensor (PS502), Film endsensor (PS501), Cover switch (SW338), Document topswitch (SW337), Document set switch (SW336). Confirmthe operation of the sensors.

See MAINTENANCE CHECKITEMS/COMPONENT LOCATIONS (P.24) andHOW TO REMOVE THE ANALOG, DIGITALAND POWER SUPPLY BOARDS AND ACINLET (P.117).

6 Glass If the glass is dirty, clean them with a dry soft cloth. Refer to MAINTENANCE (P.26).7 Abnormal, wear and tear

or loose partsReplace the part. Check if the screws are tight on all parts. —

1.15.2.2. MAINTENANCE CYCLE

No. Item Cleaning Cycle ReplacementCycle Procedure

1 Separation Roller (Ref. No. 174) 3 months 7 years* (31,500 documents) Refer to HOW TO REMOVE THESEPARATION ROLLER (P.120).

2 Separation Rubber (Ref. No. 21) 3 months 7 years (31,500 documents) Refer to MAINTENANCE CHECKITEMS/COMPONENTLOCATIONS (P.24).

3 Feed Rollers (Ref. No. 102) 3 months 7 years (31,500 documents) Refer to DISASSEMBLYINSTRUCTIONS(P.110).

4 Thermal Head (Ref. No. 41) 3 months 7 years (31,500 documents) Refer to HOW TO REMOVE THETHERMAL HEAD (P.115).

5 Platen Roller (Ref. No. 96) 3 months 7 years (31,500 documents) Refer to HOW TO REMOVE THEPLATEN ROLLER (P.116).

6 Pickup Roller (Ref. No. 134) 3 months 7 years (31,500 documents) Refer to HOW TO REMOVE THEPICKUP ROLLER (P.122).

* These values are standard and may vary depending on usage conditions.

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1.15.3. MAINTENANCE

1.15.3.1. CLEANING THE DOCUMENT FEEDER

If misfeeding occurs frequently or if dirty patterns or black bands appear on a copied or transmitted document, clean the documentfeeder.

1. Disconnect the power cord and the telephone line cord.

2. Open the cover by pressing the cover open button.

3. Clean the document feeder rollers, sub roller and rubber flapwith a cloth moistened with isopropyl rubbing alcohol, and letall parts dry thoroughly.

4. Clean the white plate and glass with a soft dry cloth.

· Do not touch the lever.

5. Close the cover securely by pushing down on the dotted areaat both ends.

6. Connect the power cord and the telephone line cord.

Caution:

· Do not use paper products, such as paper towelsor tissues, to clean the inside of the unit.

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1.15.3.2. CLEANING THE THERMAL HEAD ,SILVER BAR AND PROJECTION BAR

If dirty patterns or black or white bands appear on a copied or received document, clean the thermal head and silver bar.

1. Disconnect the power cord and the telephone line cord.

2. Open the cover by pressing the cover open button.

3. Clean the thermal head and silver bar with a cloth moistenedwith isopropyl rubbing alcohol, and let it dry thoroughly.

4. Close the back cover securely by pushing down on the dottedarea at both ends.

5. Connect the power cord and the telephone line cord.

Caution:

· To prevent a malfunction due to static electricity,do not use a dry cloth and do not touch the thermalhead directly with your fingers.

Cleaning the center rib on the film cartridge:

If a black line appears in the center of a copied or recerived document, remove the film cartridge, turm it over and clean thecenter rib with a soft dry cloth, Replace the film cartridge in its original position.

1.15.3.3. CLEANING THE PICKUP ROLLER

Refer to HOW TO REMOVE THE PICKUP ROLLER .(P.122)

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2.1.1. TROUBLESHOOTING

2 TROUBLESHOOTING GUIDE2.1. TROUBLESHOOTING SUMMARY

After confirming the problem by asking the user, troubleshoot according to the instructions and observe the followingprecautions.

2.1.2. PRECAUTIONS

1. If there is a problem with the print quality or the paper feed, first check if the installation space and the print paper meets thespecifications, the paper selection lever/paper thickness lever is set correctly, and the paper is set correctly without any slack.

2. Before troubleshooting, first check that the connectors and cables are connected correctly (not loose).

If the problem occurs randomly, check it very carefully.

3. When connecting the AC power cord with the unit and checking the operation, exercise utmost care when handling electricparts in order to avoid electric shocks and short-circuits.

4. After troubleshooting, double check that you have not forgotten any connectors, left any loose screws, etc.

5. Always test to verify that the unit is working normally.

2.1.3. WHEN YOU DON´T KNOW HOW TO OPERATE THE UNIT, USE THE HELPFUNCTION

· How to use:

1. press .

2. press or until the desired item is displayed.

3. press .

28


2.2. USER RECOVERABLE ERRORSIf the unit detects a problem, one or more of the following messages will appear on the display.

DISPLAY MESSAGE CAUSE AND REMEDY · There is something wrong with the unit.

· The document was not fed into the unit properly. Reinsert the document. If misfeeding occurs frequently,clean the document feeder rollers and try again. (Refer to and DOCUMENT JAMS (P.30).)

· The film cartridge is not installed. Install it.

· Memory (telephone numbers, parameters, etc.) has been erased. Re-program.

· The recording paper is not installed or the unit has run out of paper. Install paper and press toclear the message.

· The recording paper is not fed into the unit properly. Reinstall paper and press to clear themessage.

· The recording paper has jammed near the recording paper entrance. Clear the jammed paper and pressto clear the message. Do not install folded or heavily curled paper.

(Refer to RECORDING PAPER JAM (P.31).) · The cover is open. Close it.

· There is no space to store new items in the NAVIGATOR directory. Erase unnecessary items.

· The unit has a document in memory. See the other displayed message instructions to print out thedocument.

· The memory is full of received documents due to a lack of recording paper or a recording paper jam.Install paper or clear the jammed paper.

· When performing memory transmission, the document being stored exceeds the memory capacity of theunit. Transmit the entire document manually.

· The ink film is empty. Replace the film cartridge with a new one.

· The ink film is slack. Tighten it and install again.

· When making a copy, the document being stored exceeds the memory capacity of the unit. Pressto clear the message. Divide the document into sections.

· There is something wrong with the modem circuit.

· The other party´s fax machine is busy or has run out of recording paper. Try again.

· A recording paper jam occurred. Clean the jammed paper.

[If the printout jams, please refer to RECORDING PAPER JAM (P.31).]

· The unit is checking that there is no slack no the ink film. Wait for a while.

· The other party´s fax machine is busy or has run out of recording paper. Try again.

· The document is jammed. Remove the jammed document.

· Attempted to transmit a document longer than 600 mm (23 5/8”). Press the to remove thedocument. Divide the document into two or more sheets and try again.

· [Alternately, turn off service code #559 to enable sending of documents longer than 600 mm] (Refer toDOCUMENT JAMS (P.30).)

· A transmission error occurred. Try again.

· The unit is too hot. Let the unit cool down.

Note:

The explanations given in the [ ] are for servicemen only.

29


2.2.1. DOCUMENT JAMS

If the unit does not release the document during feeding, remove the jammed document as follows.


(2) Remove the jammed document carefully.


Note:

· Do not pull out the jammed paper forcibly before opening the cover.

30


2.2.2. RECORDING PAPER JAM

If the unit does not eject any recording paper during reception or copying, the recording paper has jammed. Remove thejammed paper following this section.

2.2.2.1. WHEN PAPER HAS JAMMED UNDER THE FILM CARTRIDGE

The display will show the following message.

Display:

Remove the jammed paper as follows.


(2) Remove the film cartridge.

(3) Remove the jammed recording paper.

(4) If the ink film is slack, turn the film cartridge over andtighten it by winding the gears.

(5) Turn the film cartridge over so that the attached stickeris facing up.

(6) Replace the film cartridge by first placing the front of thecartridge into the unit and then lowering the back of thecartridge , where there is an attached sticker, into place.


31


2.2.2.2. WHEN PAPER HAS JAMMED NEAR THE RECORDING PAPER ENTRANCE

The display will show the following message.

Display:

Remove the jammed paper as follows.

(1) Pull the tension bar forward and hold open while pullingout the jammed recording paper from the recordingpaper entrance.

(2) Press to clear the message.

2.2.2.3. WHEN PAPER HAS NOT BEEN EJECTED AND NO ERROR MESSAGES ARESHOWN ON THE DISPLAY

(1) Tilt the unit up and pull the jammed recording paper outof the recording paper exit.

(2) Remove the jammed recording paper from the recordingpaper exit.

· If you cannot remove the jammed paper, remove itby following the WHEN PAPER HAS JAMMEDUNDER THE FILM CARTRIDGE (P.31).

32


2.3. TROUBLESHOOTING DETAILS

2.3.1. OUTLINE

Troubleshooting is for recovering quality and reliabi lity by determining the broken component and replac ing, adjusting orcleaning it as required. First, determine the problem then decide the troubleshooting method. If you have difficulty findingthe broken part, determine which board is broken. (For example: the Digital PCB, Analog PCB, etc.) The claim tag from acustomer or dealer may use different expressions for the same problem, as they are not a technician or engineer. Usingyour experience, test the problem area corresponding to the claim. Also, returns from a customer or dealer often have aclaim tag. For these cases as well, you need to determine the problem. Test the unit using the simple check list on SIMPLECHECK LIST(P.34). Difficult problems may be hard to determine, so repeated testing is necess ary.

2.3.2. STARTING TROUBLESHOOTING

Determine the symptom and the troubleshooting method.

CROSS REFERENCE:

USER RECOVERABLE ERRORS (P.29)

SIMPLE CHECK LIST (P.34)

DIGITAL BOARD SECTION(P.69)

POWER SUPPLY BOARD SECTION(P.81)

33


2.3.3. TROUBLESHOOTING ITEMS TABLE

ITEM SYMPTOM REFERENCEADF

(Auto Document Feeder)The document does not feed. See NO DOCUMENT FEED (P.35)Document jam See DOCUMENT JAM (P.36)Multiple feed See MULTIPLE FEED (P.37)Skew See SKEW (P.38)

Recording paper feed The recording paper does not feed. See THE RECORDING PAPER DOES NOT FEED (P.39)Paper jam See PAPER JAM (P.40)Multiple feed and skew See MULTIPLE FEED AND SKEW (P.41)

Printing The sent fax data is skewed. See THE SENT FAX DATA IS SKEWED (P.41)The received fax data is skewed. See THE RECEIVED FAX DATA IS SKEWED (P.41)The received or copied data is expanded. See RECEIVED OR COPIED DATA IS EXPANDED (P.42)A blank page is copied. See A BLANK PAGE IS COPIED (P.43)A blank page is received. See A BLANK PAGE IS RECEIVED (P.45)Black or white vertical line See BLACK OR WHITE VERTICAL LINE (P.45)Black or white lateral line See BLACK OR WHITE LATERAL LINE ON PRINT OUT (P.46)An abnormal image is printed See AN ABNORMAL IMAGE IS PRINTED (P.47)

CommunicationFAX, TEL

(analog board)

Cannot communicate by fax. See COMMUNICATION SECTION (P.48)An error code is displayed. See DEFECTIVE FACSIMILE SECTION (P.49)Cannot talk.The DTMF tone doesn’t work.The handset / monitor doesn’t work, etc.

See ANALOG BOARD SECTION (P.78)

Operation panel Keys are not accepted. See OPERATION PANEL SECTION (P.84)Sensor If the electric circuit is the cause, the error

message corresponding to the sensor will bedisplayed.

See SENSOR SECTION (P.85)

2.3.3.1. SIMPLE CHECK LIST

SERIAL NO. DATEFUNCTION JUDGEMENT REFERENCE

FAX operation Transmission OK / NG

Receiving OK / NG

Copy operation OK / NG

Telephone operation Handset transceiver / receiver OK / NG

MONITOR sound OK / NG

Ringer sound OK / NG

Dial operation OK / NG

Volume operation OK / NG

VOX detection(KX-FP302BX-W and KX-FP303SA-W only)

OK / NG Service code #815(Refer to TEST FUNCTIONS (P.104))

Operation Panel Key check OK / NG Service code #561(Refer to TEST FUNCTIONS (P.104))

LED check OK / NG Service code #557(Refer to TEST FUNCTIONS (P.104))

LCD check OK / NG Service code #558(Refer to TEST FUNCTIONS (P.104))

Sensor Sensor check OK / NG Service code #815(Refer to TEST FUNCTIONS (P.104))

Clock Display changing OK / NG Is the time kept correctly?Check with another clock.

EXT-TAM Handset transceiver / receiver OK / NG

Remote control OK / NG

34


CROSS REFERENCE:



SENSOR SECTION(P.85)

TEST FUNCTIONS(P.104)

DISASSEMBLY INSTRUCTIONS (P.110)

STEPPING MOTOR DRIVE CIRCUIT(P.142)

2.3.4. ADF (Auto Document Feed) SECTION

2.3.4.1. NO DOCUMENT FEED

35


2.3.4.2. DOCUMENT JAM

CROSS REFERENCE:



36


2.3.4.3. MULTIPLE FEED · When using thick paper etc., sometimes the document will not be fed.

Fig. B

CROSS REFERENCE:

MAINTENANCE(P.26)


Note:

When confirming if the characters are extended or distorted, or if the feed problem is occurred, use this test chart format

(Fig. B).

37


2.3.4.4. SKEW

* We recommend making a copy of the Fig. B document in MULTIPLE FEED (P.37) and using it.

CROSS REFERENCE:

MAINTENANCE CHECK ITEMS/COMPONENT LOCATIONS (P.24)


38


CROSS REFERENCE:

INSTALLING THE RECORDING PAPER (P.16)






OPERATION PANEL SECTION(P.182)

2.3.4.5. THE RECORDING PAPER DOES NOT FEED

* We recommend making a copy of the Fig. B document in MULTIPLE FEED (P.37)and using it.

39


2.3.4.6. PAPER JAM

CROSS REFERENCE:




SENSORS AND SWITCHES(P.151)

40


2.3.4.7. MULTIPLE FEED AND SKEW

CROSS REFERENCE:



2.3.4.8. THE SENT FAX DATA IS SKEWED


CROSS REFERENCE:

SKEW (P.38)

2.3.4.9. THE RECEIVED FAX DATA IS SKEWED


CROSS REFERENCE:

MULTIPLE FEED AND SKEW (P.41)

41


2.3.4.10. RECEIVED OR COPIED DATA IS EXPANDED


CROSS REFERENCE:


42


2.3.4.11. A BLANK PAGE IS COPIED


CROSS REFERENCE:

A BLANK PAGE IS RECEIVED (P.45)



THERMAL HEAD(P.139)

43


Fig. C

44


2.3.4.12. A BLANK PAGE IS RECEIVED

CROSS REFERENCE:

A BLANK PAGE IS COPIED(P.43)

ANALOG BOARD SECTION(P.78)


2.3.4.13. BLACK OR WHITE VERTICAL LINE


CROSS REFERENCE:

CLEANING THE THERMAL HEAD ,SILVER BAR AND PROJECTION BAR (P.27)

MULTIPLE FEED(P.37)


45


2.3.4.14. BLACK OR WHITE LATERAL LINE ON PRINT OUT


CROSS REFERENCE:

A BLANK PAGE IS COPIED(P.43)




46


2.3.4.15. AN ABNORMAL IMAGE IS PRINTED


CROSS REFERENCE:




47


2.3.5. COMMUNICATION SECTION

Find the problem in the table shown below, and refer to the corresponding troubleshooting procedure in DEFECTIVEFACSIMILE SECTION P.49.

No. Symptom Content Possible cause1 The paper is not fed properly when faxing.

(Nor in the copy mode.)Troubleshooting Problem with the feeding

mechanism.2 The fax usually transmits successfully but sometimes

fails. (The unit can copy documents.)Troubleshooting Problem with the service line or

with the receiver´s fax.3 The fax usually receives successfully but sometimes fails.

(The unit can copy documents.)Troubleshooting Problem with the service line or

with the transmitter´s fax.4 The fax completely fails to transmit or receive.

(The unit can copy documents.)Troubleshooting Problem with the electric circuit.

5 The fax fails either to transmit or receive when making along distance or an international call.(The unit can copy documents.)

Detailed description of thepossible causes (Similar totroubleshooting items No.2and No.3.)

Problem with the service line.

6 The fax image is poor when transmitting or receivingduring a long distance or an international call.

7 No.1-No.5 The troubleshootingprocedure for each errorcode will be printed on thecommunication resultreport.

48


2.3.5.1. DEFECTIVE FACSIMILE SECTION

2.3.5.1.1. TRANSMIT PROBLEM

CROSS REFERENCE:

MAINTENANCE(P.26)

ADF (Auto Document Feed) SECTION (P.35)


49


2.3.5.1.2. SOMETIME THERE IS A TRANSMIT PROBLEM

Note:

"596: Transmit level set" represents a service code. (Refer to SERVICE FUNCTION TABLE (P.93).)

50


2.3.5.1.3. RECEIVE PROBLEM

First confirm whether the recording paper is installed properly or not before starting troubleshooting. (Refer to "Remarks ".)

Note:

"596: Transmit level set" represents a service code. (Refer to SERVICE FUNCTION TABLE (P.93).)

Remarks:

Regarding the reception problem, we have investigated the conceivable causes in the flow chart except for the software-relatederrors. However, some troubles may occur due to the software-related problems such as "OUT OF PAPER" when the faxswitches to the memory receiving mode and the memory capacity becomes full of the unprintable data. In this case, errormessages [MEMORY FULL] and its main cause, for example "CHECK PAPER" are displayed on the LCD. Once you solve themain problem, [MEMORY FULL] will be cancelled and the reception problem will be resolved.

LCD display messages indicating the error causes are shown below.

CHECK PAPER

COVER OPEN

UNIT OVERHEATED (COVER OPEN, etc.)...Reset the unit.

PAPER JAMMED

CHECK FILM

Please refer to USER RECOVERABLE ERRORS (P.29) for the above items. If it turns out to be a hardware deformity, pleasecheck each sensor. (Refer to TEST FUNCTIONS (P.104).)

51


The following two causes can be considered for this symptom.

2.3.5.1.4. THE UNIT CAN COPY, BUT CANNOT TRANSM IT/RECEIVE

CROSS REFERENCE:



2.3.5.1.5. THE UNIT CAN COPY, BUT CANNOT EITHER TRANSMIT/RECEIVE LONGDISTANCE OR INTERNATIONL COMMUNICATIONS

Cause 1:

The other party is executing automatic dialing, the call has been received by this unit, and the CED or DIS signal response timeis too long. (In most cases, this unit detects the CNG signal and can respond to CED or DIS.) (According to the ITU-T standard,the communication procedure is cancelled when there is no response from the other party within 35 sec, so that the other partyreleases the line.)

52


(Cause and Countermeasure)

As shown in the chart above, the total handshaking time must be reduced, but because of the long distance connection andlinking of several stations, the line connection time cannot be reduced. Accordingly, the following countermeasures should betried.

(A)... As the 35 sec. count is started directly after dialing or directly after the START button has been pressed for models witha START button, the other party should be called manually, if possible. Another possibility is entering two pauses at the end ofthe auto dial number on the transmission side. Then the count start time can be delayed for 2 pauses (about 10 sec.).

Cause 2:

Erroneous detection because of an echo or an echo canceler.

(Echo/Echo Canceler)

The signal from FAX1 reaches FAX2 via stations 1 and 2, but the reflection signal at station 2 also returns via station 1 (echo).As the distance between station 1 and station 2 is far, the echo returns to FAX 1 at a max of 600 msec after transmission. Thereis a possibility that this signal is detected erroneously as the signal from FAX2. For a normal call, there is also a possibility thatthe echo of their own voice will make the call difficult to understand. For this reason, each station (station 1 and station 2)attaches echo cancelers (S1 and S2) for international lines or long distance lines. For the echo canceler, the level of thetransmission signal from FAX 1 is compared with the level of the reception signal from FAX2. When the transmission signal islarger, S1 is closed while S2 is opened when it is smaller. In other words, for transmission from FAX1, S1 is closed and S2 isopen, so that the echo does not return to FAX1.

53


(Causes and Countermeasures)

Fig. a (Overlapping the Echo of the DIS signal and DCS signal)Fig. b (Countermeasure by Changing the CED Frequency)

No. Countermeasure Side Echo Communication Problem Example Countermeasure Service Code1 Sending side Some time is needed to compare the level

of the receiving and sending signals for theecho canceler. The header of the trainingsignal lacks due to a switching delay toclose S1.

Add a dummy signal to the beginningof the training signal.

Service code (521)(International mode select)

This countermeasurebecomes the default value.

2 Receiving side The echo canceler function stopsaccording to a CED signal frequency of2100Hz (S1 and S2 are both ON), a DISsignal is returned as an echo, and a DCSsignal from the sending side overlaps theDIS echo. Then the receiving side FAXcannot retrieve the DCS signal.(Refer to Fig. a)

Change to a 1100Hz CED signalfrequency. (Refer to Fig. b)

Service code (520)(CED frequency select)

Receiving side Change the regular rime of 75 msecbetween the CED signal and DIS signalto 500 msec. This will give at least 250msec to recover the echo canceleroperation. (Refer to Fig. c)

Service code (593)(Time between CED and 300

bps)

Sending side The sending side FAX sends a DCSsignal not after receiving the 1st DISsignal but after receiving the 2nd DISsignal. (Refer to Fig. d)

Service code (594)(Overseas DIS detection

select)

3 Sending side Communication failure occurs in a longdistance communication on the telephoneline without an echo canceler.

or

There are some cases (e.g. Mobil comms.)which cause the collision of TX / RX signalsdue to the delay / echo and noise of thenetwork / terminal. (Refer to Fig. e)

Decrease the transmission level from -10 dBm to -15 dBm and the echo levelwill decrease.

Service code (596)(Transmit level set)

4 Sending sideReceiving side

Decrease the receiving sensitivity from-13 dBm to about -32 dBm so an echosignal will not received.

Service code (598)(Receiving sensitivity)

5 Sending sideReceiving side

Set additional Pause time (Servicemode: code No. 774) in between theoriginal and its repeated signals, toprevent the collision of the signals atboth end.

Service code (774)(T4 timer)

54


Fig. c (Countermeasure by Changing the Interval BetweenCED and DIS)

Fig. d (C3ountemeasure by Ignoring the 1st DIS)

<TX side signal> <RX side signal> <Countermeasure>2nd / 3rd DCS / Training & delayed CFR / FTT at TX side2nd / 3rd EOP / EOM / MPS & delayed MCF / PIP / PIN / RTP / RTN at TX sidedelayed DCS & 2nd / 3rd / --- DIS at RX side

(Fig. e)

2.3.5.1.6. THE UNIT CAN COPY, BUT THE TRANSMISSION AND RECEP TION IMAGE AREINCORRECT

(Long distance or international communication operation)

This symptom highly depends on the transmission and reception capability of the other FAX unit and the line conditions.

The countermeasures for this unit are shown below.

Transmission Operation:

Set the transmitting speed to 4800BPS (service mode: code No. 717) or select the overseas mode.

Reception Operation:

If 80% or more of the reception is incorrect, set the receiving speed to 4800BPS. (Service mode: code No. 718)

· Refer to SERVICE FUNCTION TABLE (P.93).

55


1. Equipments

· 1 jig

· 1 PC (with LINE IN)

· 1 audio cord (mini jack supported)

· 2 tel cords

Parts No. Parts Name &Description

Qt’y

PQJJ1T004Z JACK1, JACK2 2PQJJ1D010Z PIN JACK 1ECQE2155KForECQE2E155KC

CAPACITOR 2

MA4020 DIODE 2

2.3.5.1.7. HOW TO RECORD FAX SIGNAL BY USING PC

Recording FAX signal is one of the useful analysis measures to solve communication problems.

The way of recording easily by using PC is shown as follows.

2. Setting up

FAX SIGNAL RECORDING JIG

3. Connecting PC and JIG

4. PC setting and recording

1. Set LINE IN to be valid in the volume control setting.

Refer to the PC instruction book.

2. Start up the PC software “ SOUND RECORDER”. (This software is bundled to Windows OS, which can create WAV file.)

Set the audio format “ PCM 22.050kHz, 8bit, mono”.

3. Click the record button and start recording after acquisition the signal.

Note:

· Not to be wind wave patterns on the wave monitor.

· Please compress the recording data when you send attaching to E-Mail because the data size will be so heavy.

· Any software which can create WAV files is available.

56


2.3.5.1.8. HOW TO OUTPUT THE JOURNAL REPORT

1. Press three times.

2. Press until the “ JOURNAL REPORT ” is displayed.

3. Press .

4. The report prints out.

Error code table:

(1) CODE (2) RESULT (3) MODE SYMPTOM Counter-measure*

PRESSED THE STOP KEY SND & RCV Communication was interrupted by the STOP button.DOCUMENT JAMMED SND The document paper is jammed.NO DOCUMENT SND No document paper.THE COVER WAS OPENED SND & RCV The cover is open.

40 NO RESPONSE SND Transmission is finished when the T1 TIMER expires. 141 COMMUNICATION ERROR SND DCN is received after DCS transmission. 242 COMMUNICATION ERROR SND FTT is received after transmission of a 2400BPS training signal. 343 COMMUNICATION ERROR SND No response after post message is transmitted three times. 444 COMMUNICATION ERROR SND RTN and PIN are received. 546 COMMUNICATION ERROR RCV No response after FTT is transmitted. 648 COMMUNICATION ERROR RCV No post message. 749 COMMUNICATION ERROR RCV RTN is transmitted. 850 COMMUNICATION ERROR RCV PIN is transmitted (to PRI-Q). 851 COMMUNICATION ERROR RCV PIN is transmitted. 852 NO RESPONSE RCV Reception is finished when the T1 TIMER expires. 954 ERROR-NOT YOUR UNIT RCV DCN is received after DIS transmission. 1158 COMMUNICATION ERROR RCV DCN is received after FTT transmission. 1359 ERROR-NOT YOUR UNIT SND DCN responds to the post message. 1465 COMMUNICATION ERROR SND DCN is received before DIS reception. 265 COMMUNICATION ERROR RCV Reception is not EOP, EOM PIP, PIN, RTP or RTN. 268 COMMUNICATION ERROR RCV No response at the other party after MCF or CFR is transmitted. 1370 ERROR-NOT YOUR UNIT RCV DCN is received after CFR transmission. 1372 COMMUNICATION ERROR RCV Carrier is cut when the image signal is received. 1675 MEMORY FULL RCV The document was not received due to memory full.79 CANCELED SND The multi-station transmission was rejected by the user.

FF COMMUNICATION ERROR SND & RCV Modem error. For the DCN, DCN, etc. abbreviations, refer toMODEM SECTION (P.156).

12

SND=TRANSMISSION RCV=RECEPTION

Most fax communication problems can be resolved by the following steps.

1. Change the transmit level. (Service code: 596, refer to SERVICE FUNCTION TABLE (P.93).)

2. Change the TX speed/RX speed. (Service code: 717/718, refer to SERVICE FUNCTION TABLE (P.93).)

Note*:

If the problem remains, see the following "Countermeasure " flow chart.

57


58


CROSS REFERENCE:


59


CROSS REFERENCE:


60


CROSS REFERENCE:


61


CROSS REFERENCE:


62


63


64


CROSS REFERENCE:


65


2.3.5.2. REMOTE PROGRAMMING

If, after the call is connected, the customer describes the situation and it is determined that the problem can be corrected by makingparameter changes, this function makes it possible to change parameters such as the user code and service code from anotherfax (using DTMF tones). Therefore, travel to the customer´s location is not required. However, it is not possible to change all theparameters remotely (PROGRAM MODE TABLE (P.67)). The function used to accomplish this is remote programming.

First, in order to check the current status of the service code parameter, print out the setup list (code: 991) and the service list(code: 999) from the customer´s fax machine.

Based on this, the parameters for the desired codes can be changed.

The procedure for changing and listing parameters is described on ENTERING THE REMOTE PROGRAMMING MODE ANDCHANGING SERVICE CODES (P.66). Also, before exiting the remote programming mode, it is advisable to obtain a new list toconfirm that the changes were made correctly.

Hint:

Since the connected telephone is in use during the remote programming mode, it may be helpful to ask the customer to switchto the speakerphone. This frees the customer from the need to remain right next to the fax while you are making parametersettings. When finished, inform the customer. Also note that in very noisy locations where the DTMF tones are not audible, theremote programming function will not work.

2.3.5.2.1. ENTERING THE REMOTE PROGRAMMING MODE AND CHANGING SERVICECODES

CROSS REFERENCE:

PROGRAM MODE TABLE (P.67)

66


2.3.5.2.2. PROGRAM MODE TABLE

Code Function Set Value Default RemoteSetting

001 Set date and time mm/dd/yy hh:mm Jan/01/01 NG002 Your logo --------- None NG003 Your fax number --------- None NG004 Transmission report mode 1:ERROR / 2:ON / 3:OFF ERROR OK006 FAX ring count

(for KX-FP302CX-W/KX-FP302BX-W)1 to 5 rings (for ext. tam) 1 OK

006 FAX ring count (for KX-FP303SA-W) 2 to 9 rings 2 OK012 Remote TAM activation 1:ON / 2:OFF OFF / ID=11 NG013 Dialing mode 1:Pulse / 2:Tone Tone OK016 Paper Size 1:A4 / 2:LETTER A4 OK017 Ringer Pattern 1:A / 2:B / 3:C A NG022 Auto journal print 1:ON / 2:OFF ON OK023 Overseas mode 1:ON / 2:OFF OFF OK025 Delayed transmission 1:ON / 2:OFF OFF NG030 Silent FAX recognition ring 3 to 6 rings 3 OK031 Distinctive ring 1:OFF / 2:A / 3:B / 4:C / 5:D OFF OK034 Quick scan 1:ON / 2:OFF OFF OK036 Rx reduction 1:72% / 2:86% / 3:92% / 4:100% 92% OK039 LCD contrast 1:Normal / 2:Darker Normal NG040 Silent detection

(KX-FP302BX-W/KX-FP303SA-W only)1:ON / 2:OFF OFF OK

041 Remote FAX activation code 1:ON / 2:OFF ON ID=*9 NG044 Receive alert 1:ON / 2:OFF ON OK046 Friendly receive 1:ON / 2:OFF ON OK049 Auto disconnect 1:ON / 2:OFF ON NG058 Original setting 1:NORMAL / 2:LIGHT / 3:DARKER NORMAL OK068 ECM selection 1:ON / 2:OFF ON OK070 FAX pager call 1:ON / 2:OFF OFF NG076 FAX tone 1:ON / 2:OFF ON OK077 Auto answer mode 1:FAX only 2:TEL/FAX FAX only OK078 TEL/FAX ring count

(for KX-FP302CX-W/KX-FP302BX-W)1 to 4 rings 1 OK

078 TEL/FAX ring count (for KX-FP303SA-W) 2 to 9 rings 2 OK080 Set default 1:YES / 2:NO NO NG501 Pause time set 001~600 x 100msec 050msec OK502 Flash time

(for KX-FP302CX-W/KX-FP302BX-W)01~99 x 10ms 70ms OK

502 Flash time (for KX-FP303SA-W) 01~99 x 10ms 10ms OK503 Dial speed 1:10pps / 2:20 pps 10pps OK511 Vox sense

(KX-FP302BX-W/KX-FP303SA-W only)1:High / 2:Low High OK

520 CED frequency select 1:2100Hz / 2:1100Hz 2100Hz OK521 International mode select 1:ON / 2:OFF ON OK522 Auto standby select 1:ON / 2:OFF ON OK523 Receive equalizer select 1:0km / 2:1.8km / 3:3.6km / 4:7.2km 0km OK524 Transmission equalizer select 1:0km / 2:1.8km / 3:3.6km / 4:7.2km 0km OK550 Memory clear --------- --------- NG551 ROM check --------- --------- NG552 DTMF signal tone test 1:ON / 2:OFF OFF OK553 Monitor on FAX communication 1:OFF / 2:Phase B / 3:ALL OFF OK554 Modem test --------- --------- NG555 Scanner test --------- --------- NG556 Motor test --------- --------- NG558 LCD test --------- --------- NG559 Document jam detection 1:ON / 2:OFF ON OK561 Key test --------- --------- NG570 Break % select

(for KX-FP302CX-W/KX-FP302BX-W)1:61% / 2:67% 61% OK

570 Break % select (for KX-FP303SA-W) 1:61% / 2:67% 67% OK571 ITS auto redial time set 00~99 05 OK572 ITS auto redial line disconnection time set 001~999sec 065sec OK573 Remote turn-on ring number 01~99 10 OK590 FAX auto redial time set 00~99 05 OK591 FAX auto redial line disconnection time set 001~999sec 065sec OK592 CNG transmit select 1:OFF / 2:ALL / 3:AUTO ALL OK

67


Code Function Set Value Default RemoteSetting

593 Time between CED and 300 bps 1:75ms / 2:500ms / 3:1sec 75ms OK594 Overseas DIS detection 1:1st / 2:2nd 1st OK595 Receive error limit value 001~999 100 OK596 Transmit level set -15~00dBm -10dBm OK598 Receiving Sensitivity 20~48 40 OK599 ECM frame size 1: 256 byte / 2: 64 byte 256 byte OK700 EXT. TAM OGM Rec. time

(KX-FP302BX-W/KX-FP303SA-W only)01~99sec 10sec OK

701 No voice detect time(KX-FP302BX-W/KX-FP303SA-W only)

01~99 × 100msec 50 OK

717 Transmit speed select 1:9600/ 2:7200/ 3:4800/ 4:2400 9600bps OK718 Receive speed select 1:9600/ 2:7200/ 3:4800/ 4:2400 9600bps OK719 Ringer off in TEL/FAX mode 1:ON / 2:OFF ON OK721 Pause tone detect 1:ON / 2:OFF ON OK722 Redial tone detect 1:ON / 2:OFF ON OK745 Power on film feed 1:ON / 2:OFF ON OK763 CNG detect time for friendly reception 1:10s / 2:20s / 3:30s 30s OK771 T1 timer 1:35s / 2:60s 35s OK774 T4 timer 00~99 × 100ms 00ms OK815 Sensor & VOX test --------- --------- NG852 Print test pattern --------- --------- NG853 Top margin 1~9 5 OK880 History list 1:Start --------- NG881 Journal 2 --------- --------- NG882 Journal 3 --------- --------- NG890 TEL/FAX ring back tone

(for KX-FP302CX-W/KX-FP302BX-W)1:ON / 2:OFF ON OK

890 TEL/FAX ring back tone(for KX-FP303SA-W)

1:ON / 2:OFF OFF OK

991 Setup list 1:Start --------- OK994 Journal list 1:Start --------- OK995 Journal 2 list 1:Start --------- OK996 Journal 3 list 1:Start --------- OK998 History list 1:Start --------- OK999 Service list 1:Start --------- OK

OK means "can set".

NG means "can not set".

Note:

Refer to SERVICE FUNCTION TABLE (P.93) for descriptions of the individual codes.

Example:

If you want to set value in the "004 Transmission report mode", press the dial key number 1,2 or 3 corresponding to the SetValue you want to select. (1:ERROR/2:ON/3:OFF)

68


2.3.6. DIGITAL BOARD SECTION

When the unit fails to boot up the system, take the troubleshooting procedures very carefully. It may have a serious problem.

The symptom: No response when the power is turned on. (No LCD display, and keys are not accepted.)

The first step is to check the power source. If there is no problem with the power supply unit, the problem may lie in the digitalunit (main board).

As there are many potential causes in this case (ASIC, DRAM, etc.), it may be difficult to specify what you should check first.If a mistake is made in the order of checks, a normal part may be determined faulty, wasting both time and money.

Although the tendency is to regard the problem as a serious one (IC malfunction, etc.), usually most cases are caused by solderfaults (poor contact due to a tunnel in the solder, signal short circuit due to solder waste).

Note:

1. Electrical continuity may have existed at the factory check, but a faulty contact occurred as a result of vibration, etc., duringtransport.

2. Solder waste remaining on the board may get caught under the IC during transport, causing a short circuit.

Before we begin mass production, several hundred trial units are produced at the plant, various tests are applied and anymalfunctions are analyzed. (In past experiences, digital IC (especially DRAM and FLASH ROM) malfunctions are extremely rareafter installation in the product.)

This may be repaired by replacing the IC, (DRAM etc.). However, the real cause may not have been an IC malfunction but asoldering fault instead.

Soldering faults difficult to detect with the naked eye are common, particularly for ASIC and RA (Resistor Array). But if you havean oscilloscope, you can easily determine the problem site or IC malfunction by checking the main signal lines.

Even if you don’t have such a measuring instrument, by checking each main signal line and resoldering it, in many cases theproblem will be resolved.

An explanation of the main signals (for booting up the unit) is presented below.

What are the main signals for booting up the unit?

Please refer to DIGITAL BLOCK DIAGRAM (P.70).

The ASIC (IC501) controls all the other digital ICs. When the power is turned on, the ASIC retrieves the operation code storedin the FLASH ROM (IC502), then follows the instructions for controlling each IC. All ICs have some inner registers that areassigned to a certain address.

It is the address bus by which the ASIC designates the location inside each IC. And the data bus reads or writes the data inorder to transmit the instructions from the ASIC to the ICs.

These signal lines are all controlled by voltages of 3.3V (H) or 0V (L).

Between the DRAM (IC503), Buffer IC (IC515) signal lines are controlled by voltages of 5V (H) or 0V (L).

69


2.3.6.1. DIGITAL BLOCK DIAGRAM

You also need to check the signal lines listed here [List 1] when the unit fails to boot up the system. Those signal lines shouldremain normal. Other signal lines are not directly related to that failure even if they have faults or troubles.

As long as these signals remain normal, once the power is turned on, each IC can repeatedly output 3.3V (H) and 0V (L) (IC503and IC515 output 5V(H) and 0V(L)). The following shows NG and normal wave patterns.

70


NG Wave pattern

Refer to NG EXAMPLE (P.76).

71


Normal Wave Patterns

Remarks:

When you use an oscilloscope to judge whether a signal to be tested is normal or NG, perform the signal check in exactly thesame order as in [List 1]. (If the ASIC fails to access the FLASH ROM, the ASIC cannot access DRAM normally.)

The digital circuit actually operates according to the timing combinations of these signals. If the timing of these signals is evenslightly delayed, the circuit will not work. Nor will it if the IC is defective and the output voltage level is not normal although thetiming of these signals is accurate enough to meet the specifications. (Make sure that your oscilloscope is calibrated beforestarting a test.)

Therefore, it is imperative to confirm whether each IC outputs the signal at the correct level. (See the I/O Pin No. Diagram .)The signal level should be constantly output at between 3.3V (H) and 0V (L) as described earlier.

Note:

Simply check the output level and make sure if the IC repeatedly outputs the signal at between 3.3V (H) and 0V (L).

72


I/O and Pin No. Diagram

73


After the power is turned on, the ASIC initializes and checks each IC.

The ROM, DRAM, and modem are checked.

If initialization fails for the ICs, the system will not boot up.

In this case, please find the cause as follows.

CROSS REFERENCE:

NG EXAMPLE (P.76)

CHECK THE STATUS OF THE DIGITAL BOARD (P.77)


74


CROSS REFERENCE:

CHECK THE STATUS OF THE DIGITAL BOARD (P.77)

Other NG example while the power is ON and the LCD displays the following.

75


2.3.6.2. NG EXAMPLE

76


2.3.6.3. CHECK THE STATUS OF THE DIGITAL BOARD

77


2.3.7. ANALOG BOARD SECTION

This chapter provides the testing procedures required for the analog parts. A signal route to be tested is determined dependingupon purposes. For example, the handset TX route begins at the handset microphone and the signal is output to the telephoneline. The signal mainly flowing on this route is analog. You can trace the signal with an oscilloscope. The signal flow on eachroute is shown in the Check Sheet here. If you find a specific problem in the unit, for example if you cannot communicate withthe H/S, trace that signal route locally with the following Check Sheet and locate the faulty point.

2.3.7.1. CHECK SHEET

Note:

: Inside the digital board

[ ]: for KX-FP303SA-W route

78


2.3.7.2. DEFECTIVE ITS (Integrated Telephone System) SECTION

1. No handset transmission / reception and no monitor reception

Perform a signal test in the ITS or the NCU section and locate a defective point (where the signal disappears) on each routebetween the handset microphone and telephone line (sending), or between the telephone line and the handset speaker(receiving), or between the microphone and the telephone line (sending), or between the telephone line and the speaker(receiving). Check the components at that point. CHECK SHEET(P.78) is useful for this investigation.

2. No pulse dialing

3. No ring tone (or No bell)

CROSS REFERENCE:

CHECK SHEET (P.78)

NCU SECTION(P.167)

79


4. No tone dialing

CROSS REFERENCE:

CHECK SHEET (P.78)

2.3.7.3. DETECTIVE TAM INTERFACE SECTION

1. The FAX turns on, but does not arrive through TAM.

CROSS REFERENCE:

TAM INTERFACE SECTION(P.170)

2. A FAX is received, but won´t switch from TAM to FAX.

CROSS REFERENCE:


TAM INTERFACE SECTION(P.170)

80


2.3.8. POWER SUPPLY BOARD SECTION

2.3.8.1. KEY COMPONENTS FOR TROUBLESHOOTING

Check the following parts first: F101, D101-D104, C106, Q101, PC101 and IC101.

This comes from our experience with experimental tests. For example: power supply and lightning surge voltage test, withstandingvoltage test, intentional short circuit test, etc.

Caution:

If you find a melted fuse in the unit, do not turn on the power until you locate and repair the faulty parts (except for the fuse);

otherwise the fuse will melt again and you cannot pinpoint the faulty point.

In most cases, the symptom is that nothing is output. It is more likely that the fault is in the primary side rather than the secondaryside. Check the primary side first.

81


2.3.8.2. TOROUBLESHOOTING FLOW CHART

82


2.3.8.3. BROKEN PARTS REPAIR DETAILS

(D101, D102, D103, D104)

Check for a short-circuit in terminal 4. If D101, D102, D103 and D104 are short-circuited, F101 will melt (open).

In this case, replace all of the parts (D101, D102, D103, D104, F101).

(Q101)

The worst case of Q101 is a short-circuit between the Drain and Gate because damage expands to the peripheral circuit of Q101.

This is due to a very high voltage through the Gate circuit which is composed of R107, R109, D106 and IC101.

You should change all of the parts listed as follows.

F101, Q101, R107, R109, D106, IC101

(D201)

If D201 is broken, the oscillation circuit in the power supply cannot operate. Check it with an electric tester.

83


2.3.9. OPERATION PANEL SECTION

2.3.9.1. NO KEY OPERATION

CROSS REFERENCE:


2.3.9.2. NO LCD INDICATION

CROSS REFERENCE:


84


2.3.10. SENSOR SECTION

Refer to SENSORS AND SWITCHES(P.151) for the circuit descriptions.

The Test Function makes the sensor circuit check easier. (Refer to TEST FUNCTIONS(P.104).)

For example, as for "COVER OPEN SENSOR", "CO" is turned ON/OFF on the display when you open or close the front cover.Also, document sensor, read position sensor and recording paper sensor are turned ON/OFF by the copy operation. Therefore,each sensor can be checked for proper mechanical operation.

As for the electric check, check whether each voltage is right or not with following flowchart turning each sensor lever ON/OFFmanually.

2.3.10.1. CHECK THE DOCUMENT TOP SW (SW337)................."REMOVE DOCUMENT"

2.3.10.2. CHECK THE DOCUMENT SET SW (SW336)................."CHECK DOCUMENT"

2.3.10.3. CHECK THE COVER SW (SW338)................."COVER OPEN"

2.3.10.4. CHECK THE HOOK SWITCH (SW401)

85


CROSS REFERENCE:


2.3.10.5. CHECK THE PAPER TOP SENSER (PS502)........................"PAPER JAMMED"

2.3.10.6. CHECK THE FILM END SENSOR (PS501)........................"FILM EMPTY”

86


Refer to SCANNING BLOCK (P.141).

CROSS REFERENCE:


2.3.11. CIS (Contact Image Sensor) SECTION

87


2.3.12. THERMAL HEAD SECTION

Refer to THERMAL HEAD (P.139).

88


2.4. PROGRAMMING AND LISTSThe programming functions are used to program the various features and functions of the machine, and to test the machine.

This facilitates communication between the user and the service man while programming the unit.

2.4.1. OPERATION

There are 2 basic categories of programming functions, the User Mode and the Service Mode. The Service Mode is furtherbroken down into the normal and special programs. The normal programs are those listed in the Operating Instructions and areavailable to the user. The special programs are only those listed here and not displayed to the user. In both the User andService Modes, there are Set Functions and Test Functions. The Set Functions are used to program various features andfunctions, and the Test Functions are used to test the various functions. The Set Functions are accessed by entering their code,changing the appropriate value, then pressing the SET key. The Test Functions are accessed by entering their code andpressing the key listed on the menu. While programming, to cancel any entry, press the STOP key.

2.4.2. OPERATION FLOW

89


2.4.3. USER MODE (The list below is an example of the SYSTEM SETUP LIST the unitprints out.)

2.4.3.1. for KX-FP302BX-W

Note:

The above values are the default values.

90


2.4.3.2. for KX-FP302CX-W

Note:


91


2.4.3.3. for KX-FP3 03SA-W

Note:


92


2.4.4. SERVICE FUNCTION TABLE

Code Function Set Value EffectiveRange

Default Remarks

501 Pause time set X 100 msec 001~600 50 ----------502 Flash time

(for KX-FP302CX-W / KX-FP302BX-W)X 10 ms 01~99 70 ----------

502 Flash time (for KX-FP303SA-W) X 10 ms 01~99 10 ----------503 Dial speed select 1:10 pps 2:20

pps1, 2 1 ----------

511 VOX sense(KX-FP302BX-W / KX-FP303SA-W only)

1:High 2:Low 1, 2 1 When the TAM (or EXT TAM) does not stoprecording the ICM because noise is detected onthe telephone line, change this setting to "LOW".

520 CED frequency select 1:2100 Hz2:1100 Hz

1, 2 1 See Symptom/Countermeasure Table for longdistance and international calls in THE UNIT CANCOPY, BUT CANNOT EITHERTRANSMIT/RECEIVE LONG DISTANCE ORINTERNATIONL COMMUNICATIONS (P.52).

521 International mode select 1:ON 2:OFF 1, 2 1 See Symptom/Countermeasure Table for longdistance and international calls in THE UNIT CANCOPY, BUT CANNOT EITHERTRANSMIT/RECEIVE LONG DISTANCE ORINTERNATIONL COMMUNICATIONS (P.52).

522 Auto standby select 1:ON 2:OFF 1, 2 1 The resolution reverts to the default whentransmission is complete.

523 Receive equalizer select 1: 0 km2: 1.8 km3: 3.6 km4: 7.2 km

1~4 1 When the telephone station is far from the unit orreception cannot be performed correctly, adjustaccordingly.

524 Transmission equalizer select 1: 0 km2: 1.8 km3: 3.6 km4: 7.2 km

1~4 1 When the telephone station is far from the unit ortransmission cannot be performed correctly, adjustaccordingly.

550 Memory clear: To reset the value to the default one, except the top margin(853) .

"START" input

551 ROM check See TEST FUNCTIONS(P.104).552 DTMF single tone test 1:ON 2:OFF 1, 2 2 See TEST FUNCTIONS(P.104).553 Monitor on FAX communication select 1:OFF

2:PHASE B3:ALL

1~3 1 Sets whether to monitor the line signal with theunit´s speaker during FAX communication or not.

554 Modem test See TEST FUNCTIONS(P.104).555 Scan check See TEST FUNCTIONS(P.104).556 Motor test 0 See TEST FUNCTIONS(P.104).558 LCD test See TEST FUNCTIONS(P.104).559 Document jam detection select 1:ON 2:OFF 1, 2 1 See DOCUMENT JAMS (P.30).561 KEY test See TEST FUNCTIONS(P.104).570 BREAK % select

(for KX-FP302CX-W / KX-FP302BX-W)1:61% 2:67% 1, 2 1 Sets the % break of pulse dialing according PBX.

570 BREAK % select (for KX-FP303SA-W) 1:61% 2:67% 1, 2 2 Sets the % break of pulse dialing according PBX.571 ITS auto redial time set X number of

times00~99 05 Selects the number of times that ITS is redialed

(not including the first dial).572 ITS auto redial line disconnection time

setX second 001~999 065 Sets the interval of ITS redialing.

573 Remote turn-on ring number set X number ofrings

01~99 10 Sets the number of rings before the unit starts toreceive a document in the TEL mode.

590 FAX auto redial time set X number oftimes

00~99 05 Selects the number of redial times during FAXcommunication (not including the first dial).

591 FAX auto redial time disconnection timeset

X second 001~999 065 Sets the FAX redial interval during FAXcommunication.

592 CNG transmit select 1:OFF2:ALL3:AUTO

1~3 2 Lets you select the CNG output during FAXtransmission. ALL: CNG is output at phase A.AUTO: CNG id output only when automatic dialingis performed. OFF: CNG id not output at phase A.Refer to SOMETIME THERE IS A TRANSMITPROBLEM (P.50).

593 Time between CED and 300bps 1:75 msec2:500 msec3:1 sec

1~3 1 See Symptom/Countermeasure Table for longdistance and international calls in THE UNIT CANCOPY, BUT CANNOT EITHERTRANSMIT/RECEIVE LONG DISTANCE ORINTERNATIONL COMMUNICATIONS (P.52).Refer to RECEIVE PROBLEM (P.51) and THEUNIT CAN COPY, BUT CANNOT EITHERTRANSMIT/RECEIVE LONG DISTANCE ORINTERNATIONL COMMUNICATIONS (P.52).

93


Code Function Set Value EffectiveRange

Default Remarks

594 Overseas DIS detection select 1:detects atthe 1st time2:detects atthe 2st time

1, 2 1 See Symptom/Countermeasure Table for longdistance and international calls in THE UNIT CANCOPY, BUT CANNOT EITHERTRANSMIT/RECEIVE LONG DISTANCE ORINTERNATIONL COMMUNICATIONS (P.52).Refer to SOMETIME THERE IS A TRANSMITPROBLEM (P.50) and THE UNIT CAN COPY,BUT CANNOT EITHER TRANSMIT/RECEIVELONG DISTANCE OR INTERNATIONLCOMMUNICATIONS (P.52).

595 Receive error limit value set X Number oftimes

001~999 100 Sets the number of acceptable error lines whenthe FAX reconstructs the received data. Refer toRECEIVE PROBLEM (P.51).

596 Transmit level set X dBm - 15~00 10 Selects the FAX transmission level. Refer toSOMETIME THERE IS A TRANSMIT PROBLEM(P.50)and RECEIVE PROBLEM (P.51).

598 Receiving sensitivity 43= -43 dBm 20~48 40 Used when there is an error problem. Refer toTHE UNIT CAN COPY, BUT CANNOT EITHERTRANSMIT/RECEIVE LONG DISTANCE ORINTERNATIONL COMMUNICATIONS (P.52).

599 ECM frame size 1: 256 byte2: 64 byte

1, 2 1 ----------

700 EXT.TAM OGM Rec. time(KX-FP302BX-W / KX-FP303SA-W only)

X second 01~99 10 Sets the start time of silent detection.

701 No voice detect time(KX-FP302BX-W / KX-FP303SA-W only)

X100 msec 01~99 50 Sets the silent call confirmation detection time.

717 Transmit speed selection 1:9600BPS2:7200BPS3:4800BPS4:2400BPS

1~4 1 Adjusts the speed to start training during FAXtransmission. Refer to SOMETIME THERE IS ATRANSMIT PROBLEM (P.50)and THE UNIT CANCOPY, BUT THE TRANSMISSION ANDRECEPTION IMAGE ARE INCORRECT(P.55).

718 Receive speed selection 1:9600BPS2:7200BPS3:4800BPS4:2400BPS

1~4 1 Adjusts the speed to start training during FAXreception. Refer to RECEIVE PROBLEM (P.51)and THE UNIT CAN COPY, BUT THETRANSMISSION AND RECEPTION IMAGE AREINCORRECT (P.55).

719 Ringer off in TEL/FAX mode 1:ON 2:OFF 1, 2 1 Selects the ringer switch off when a call isreceived in the TEL/FAX mode.

721 Pause tone detect 1:ON 2:OFF 1, 2 1 Selects the tone detection for pause in dialing.722 Redial tone detect 1:ON 2:OFF 1, 2 1 Sets the tone detection mode after redialing.745 Power ON film feed 1:ON 2:OFF 1, 2 1 When the power is turned on, the film is wound to

take up any slack.763 CNG detect time for friendly reception 1:10 sec

2:20 sec3:30 sec

1~3 3 Selects the CNG detection tone of friendlyreception.

771 T1 timer 1:35 sec2:60 sec

1, 2 1 Sets a higher value when the response from theother party needs more time during FAXtransmission.

774 T4 timer X 100 msec 00~99 0 Use this function when delay occurs in the lineand communication (ex. Mobile comm) does notwork well.

815 Sensor & Vox check See TEST FUNCTIONS(P.104).852 Print test pattern See TEST FUNCTIONS(P.104).853 Top margin 1~9 5 ----------880 History list See HISTORY(P.97).881 Journal 2 list See PRINTOUT EXAMPLE (P.102).882 Journal 3 list See PRINTOUT EXAMPLE (P.102).890 TEL/FAX 1st ring back tone

(for KX-FP302CX-W / KX-FP302BX-W)1:ON 2:OFF 1, 2 1 Selects whether the TEL/FAX 1st ring back tone

is ON or OFF in the TEL/FAX mode.890 TEL/FAX 1st ring back tone

(for KX-FP303SA-W)1:ON 2:OFF 1, 2 2 Selects whether the TEL/FAX 1st ring back tone

is ON or OFF in the TEL/FAX mode.

94


2.4.5. SERVICE MODE SETTINGS (Example of a printed out list)


Note:



Note:


95


2.4.5.3. for KX-FP3 03SA-W

Note:


96


2.4.6. HISTORY

Note:

See the following descriptions of this report. Item No. (1) ~ (44) are corresponding to the listed items in DESCRIPTIONS OFTHE HISTORY REPORT(P.98).

97


(1) ROM VERSION

Software version

(2) SUM

Software internal data calculation.

(3) YOUR LOGO

The user logo recorded in the unit. If it is not recorded, NONEwill be displayed.

(4) YOUR TELEPHONE NUMBER

The user telephone number recorded in the unit. If it is notrecorded, NONE will be displayed.

(5) FAX PAGER NUMBER

If you program a pager number into the unit, the pager numberwill be displayed here.

(6) FACTORY - CUSTOMER

This shows how many days from factory production until theuser turns ON the unit.

(7) MONTH

The shows the very first month, date, year and time set by theuser after they purchased the unit.

(8) DAY


(9) YEAR


(10) TIME


(11) USAGE TIME

The amount of time the unit has been powered ON.

(12) FACTORY - NOW

This shows how many days from factory production until theuser prints out this history list.

(13) TEL MODE

The amount of time the TEL mode setting was used.

(14) FAX MODE

The amount of time the FAX mode setting was used.

(15) TEL/FAX MODE

The amount of time the TEL/FAX mode setting was used.

(16) ANS/FAX MODE

The amount of time the ANS/FAX mode setting was used.

(17) FINAL RECEIVE MODE

The last set receiving mode by the user.

(18) TONE/PULSE SELECTION

The most recently used setting used, either TONE or PULSE.

(19) RECEIVE REDUCTION

The compression rate when receiving.

(20) SETTING NO. OF DIRECTORY

The recorded directory stations.

(21) NUMBER OF COPY

The number of pages copied.

(22) NUMBER OF RECEIVE

The number of pages received.

(23) NUMBER OF SENDING

The number of pages sent.

(24) Not Used

(25) NUMBER OF RECORDING MESSAGE

The number of messages recorded in TAM.

(26) NUMBER OF PC SCAN

The number of times multifunction was used for the Scanner.(The number of pages scanned. If the unit does not have a PCinterface, NONE will be printed.)

(27) NUMBER OF PC-PRINT

The number of times multifunction was used for the Printer.(The number of pages printed. If the unit does not have a PCinterface, NONE will be printed.)

(28) NUMBER OF RECEIVING TO PC

The number of times received in the PC through the FAX serialinterface (RS232C). (The number of pages received. If the unitdoes not have a PC interface, NONE will be printed.)

(29) NUMBER OF SENDING FROM PC

The number of times transmitted from the PC through the FAXserial interface (RS232C). (The number of pages transmitted. Ifthe unit does not have a PC interface, NONE will be printed.)

(30) NUMBER OF PRINTING WARNING LIST

The number of warning lists printed until now.

(31) NUMBER OF PRINTING HELP

The number of help lists printed until now.

(32) NUMBER OF DIVIDED PRINTING IN FAX RECEPTION

The number of faxes received that were divided into more thanone sheet since the unit was purchased.

(33) DETECTION OF RS232C

When the fax and PC serial cable (RS232C) are connectedand the signal is received correctly, COMPLETE will be printed.For models without a PC interface or when there is a PCinterface but the signal cannot be received between the fax andPC, INCOMPLETE will be printed. (The number of pagestransmitted. If the unit does not have a PC interface, NONE willbe printed.)

(34) FAX MODE

Means the unit received a fax message in the FAX mode.

(35) MAN RCV

Means the unit received a fax message by manual operation.

(36) FRN RCV

Means the unit received a fax message by friendly signaldetection.

(37) VOX

Means the unit detected silence or no voice.

(38) RMT DTMF

Means the unit detected DTMF (Remote Fax activation code)entered remotely.

(39) PAL DTMF

Means the unit detected DTMF (Remote Fax activation code)entered by a parallel connected telephone.

2.4.6.1. DESCRIPTIONS OF THE HISTORY REPORT

98


(40) TURN-ON

Means the unit started to receive after 10 rings. (Remote TurnOn: Service Code #573)

(41) TIME OUT

Means the unit started to receive after Ring Time Out in theEXT-TAM or TEL/FAX mode.

(42) IDENT

Means the unit detected Ring Detection.

(43) CNG OGM

Means the unit detected the CNG while it was sending theDummy Ring Back Tone in the TEL/FAX mode, or whileanswering a call in the EXT-TAM mode. Or means the unitdetected the CNG while it was sending the OGM in theANS/FAX mode.

(44) CNG ICM

Means the unit detected the CNG while it was recording theICM in the ANS/FAX mode.

99


2.4.7. SPECIAL SERVICE JOURNAL REPORTS

Journal 2 and Journal 3 shown below, which are special journals giving the additional detailed information about the latest 35communications, can be printed by Service Code 881 or 882. Remote printing function for the journal reports (JOURNAL,JOURNAL 2 and JOURNAL 3) is also available for service technicians. (Refer to REMOTE PROGRAMMING(P.66).) TheJOURNAL report only gives you basic information about a communication, but the other two journal reports provide differentinformation on the same item (communication).

HOW TO READ JOURNAL REPORTS:

Example:

1. Look at NO. 01 in the JOURNAL. If you want to know about the details about that item, see NO. 01 in the JOURNAL 2 andthe JOURNAL 3. You can get the following information.

* MODE: Fax transmission

* RCV. MODE: TEL

* TX SPEED: 9.6 kbps

* RESOLUTION: standard

* ENCODE: MH

* MAKER CODE: 79

2. Look at NO. 04 in the JOURNAL 2. CNG (0003) indicates that the CNG signal has been received three times since thepurchase date.

For further details, see JOURNAL 2 (P.101) and JOURNAL 3 (P.102).

100


2.4.7.1. JOURNAL 2

Refer to JOURNAL 2 in PRINTOUT EXAMPLE (P.102).

Journal 2 displays the additional detailed information about the last 35 communications.

Descriptions:

(1) RCV. MODE

Indicates which receive mode the unit was in when the unit received a fax message.

This information is also displayed when the unit transmitted a fax message.

(2) SPEED

Indicates the speed of the communication. If multiple pages are transmitted or received, it indicates the last page’s communicationspeed. If there is a communication error, "?" is displayed.

(3) RESOLUTION

Indicates the resolution of the communication. If multiple pages are transmitted or received, it indicates the last page’s resolution.If there is a communication error, "?" is displayed.

(4) RCV-TRIG. (CNT.)

Indicates the trigger that causes the unit to switch to the fax receive mode. The available options are listed in JOURNAL 2 inPRINTOUT EXAMPLE (P.102). The values in parentheses indicate how many times the trigger has been used. (For example,"0003" means three times.)

No. Display Function1 FAX MODE Means the unit received a fax message in the FAX mode.2 MAN RCV Means the unit received a fax message by manual operation.3 FRN RCV Means the unit received a fax message by friendly signal detection.4 VOX Means the unit detected silence or no voice.5 RMT DTMF Means the unit detected DTMF (Remote Fax activation code) entered remotely.6 PAL DTMF Means the unit detected DTMF (Remote Fax activation code) entered by a parallel connected

telephone.7 TURN-ON Means the unit started to receive after 15 rings. (Remote Turn On: Service Code #573)8 TIME OUT Means the unit started to receive after Ring Time Out in the EXT-TAM or TEL/FAX mode.9 IDENT Means the unit detected Ring Detection.

10 CNG OGM Means the unit detected the CNG while it was sending the Dummy Ring Back Tone in theTEL/FAX mode.ORMeans the unit detected the CNG while it was sending the OGM in the ANS/FAX mode.

11 CNG ICM Means the unit detected the CNG while it was recording the ICM in the ANS/FAX mode.

(5) ERROR→→MEMORY

Indicates the reason why the unit received a fax message in memory.

If you look at No.11 in the JOURNAL 2 in PRINTOUT EXAMPLE (P.102), it shows the fax message was received in memory dueto "PAPER OUT" error.

NO RESPONSE DISAPPEARED ON JOURNAL

The "NO RESPONSE DISAPPEARED ON JOURNAL " displays the information about the last 10 communications terminated by"No Response". (Some of the communications terminated by "No Response" were not displayed in the JOURNAL.)

When a fax transmission cannot be performed because the other party’s unit is set to the TEL mode, "No response" will be printed.

101


(6) ENCODE

Compression Code: MH/MR/MMR

(7) MSLT

MSLT means Minimum Scan Line Time. Used only atthe factory.

(8) EQM

EQM means Eye Quality Monitor. Used only at thefactory.

(9) ERROR LINE (RX)

When an error occurs while receiving a fax, this showsthe number of error lines.

(10) MAKER CODE

This shows a 2 digit code of the other party´s faxmachine brand.

0E: "KX" model

00: Unknown

79: "UF" model

19: "Xerox" model

2.4.7.2. JOURNAL 3

Refer to JOURNAL 3 in PRINTOUT EXAMPLE (P.102).

Description

2.4.7.3. PRINTOUT EXAMPLE

102


103


2.5. TEST FUNCTIONSThe codes listed below can be used to perform simple checks of some of the unit’s functions. When complaints are receivedfrom customers, they provide an effective tool for identifying the locations and causes of malfunctions. To do this, you set theService mode (Refer to OPERATION FLOW (P.89) first, then operate the below test items.

Test Mode Type of Mode Code FunctionOperation after code

inputMOTOR TEST Service Mode “5” “5” “6” Rotates the transmission and reception motor to check the operation of the

motor.13: FAX TX / Reading memory14: Document feed23: Recording paper is fed33: List / FAX RX print, pull back recording paper43: Copy

05: Recording paper feed(Test a recording paper feeding operation by shifting from 23 to 33).

Press button to quit.

START

MODEM TEST Service Mode “5” “5” “4” Telephone line circuit is connected automatically, output the following signals onthe circuit line.1) OFF 2) 9600bps 3)7200bps 4) 4800bps5) 2400bps 6) 300bps 7) 2100Hz 8)1100Hz

START

ROM CHECK Service Mode “5” “5” “1” Indicates the version and checks the sum of the ROM.START

SCAN CHECK Service Mode “5” “5” “5” Turns on the LEDs of the CIS and operates the read systems.START

LCD CHECK Service Mode “5” “5” “8” Checks the LCD indication.Illuminates all the dots to check if they are normal.START

DTMF SINGLE TEST Service Mode “5” “5” “2” Outputs the DTMF as single tones. Used to check the frequencies of theindividual DTMF tones. Refer to DTMF SINGLE TONE TRANSMIT SELECTION(P.105).

1....ON2....OFF

KEY CHECK Service Mode “5” “6” “1” Checks the button operation.Indicates the button code on the LCD while the button is pressed. Refer toBUTTON CODE TABLE (P.105).

START (any key)

FACTORY SET Service Mode “5” “5” “0” Clears the memory where the users can store data.START

PRINT TESTPATTERN

Service Mode “8” “5” “2” Prints out the test pattern.Used mainly at the factory to test the print quality.You can select 1~4. (See PRINT TEST PATTERN (P.106))

START

SENSOR CHECK &VOX CHECK(VOX CHECK is KX-FP302BX-W and KX-FP303SA-W only)

Service Mode “8” “1” “5” If you enter this mode and operate sensor levers with your hands, the LCDdisplay of the related sensor (or switch) turns ON / OFF. Also, when copying adocument, the related sensor will turn ON / OFF. (Do, Sn, Co, Pt, Vx)For each sensor’s operation, refer to SENSORS AND SWITCHES (P.151).Do Sn Co Pt Ri Vx : LCD DISPLAY

Do: Document set switch:Paper inserted. Turns on when a document is inserted.

Sn: Document top switch:At the read position, turns on when the front cover is opened and thesensor lever is pressed directory.

Co: Cover switch:Cover open. Turns on and off when the front cover is opened and closed.

Pt: Paper top sensor:Sensor on. Turns on when the front cover is opened and the sensor leveris pressed directly.

Ri: Film end sensor:Sensor on. Turns on and off when the film end sensor gear turns around.

Vx: Vox signal:Detection signal for the tone on the line. Turns on when there is a tonesignal on the line.

START

Note:

The numbers in the boxes (XXX) indicate the keys to be input for the various test modes.

104


When set to ON (=1), the 12 keys and transmissionfrequencies are as shown.

key High Frequency (Hz) key Low Frequency (Hz)“1” 697 “5” 1209“2” 770 “6” 1336“3” 852 “7” 1477“4” 941 “8” 1633

When set to OFF (=2), the 12 keys and transmissionfrequencies are as shown.

High (Hz) 1209 1336 1477Low (Hz)697 “1” “2” “3”770 “4” “5” “6”852 “7” “8” “9”941 “ ” “0” “#”

2.5.1. DTMF SINGLE TONE TRANSMIT SELECTION

Note:

After performing this check, do not forget to turn the setting off.

Otherwise, dialing in DTMF signal will not work.

2.5.2. BUTTON CODE TABLE

Code Button Name Code Button Name Code Button Name Code Button Name04 FAX/START /SET 31 1 3B 64 STATION 105 LOWER 32 2 3C # 65 STATION 206 COPY 33 3 3D REDIAL PAUSE 66 STATION 308 MONITOR 34 4 3E FLASH 67 STATION 40A MUTE 35 5 47 BROADCAST 68 STATION 50C AUTO ANSWER 36 6 1E NEXT 69 STATION 620 MENU 37 7 1F PREV 6A STATION 722 HELP 38 825 VOLUME 39 9 00 NO INPUT26 VOLUME 3A 0 01 STOP

105


2.5.3. PRINT TEST PATTERN

1. Platen roller

(Reference pattern)

106


2. Left margin/Top margin

(Reference pattern)

107


3. Thermal head 1 dot

(Reference pattern)

108


4. Use this test pattern to confirm the torque limiter for Ink film and platen roller timing.

(Reference pattern)

109


3 DISASSEMBLY INSTRUCTIONS

3.1. HOW TO REMOVE THE PAPER TRAY AND DOCUMENT FEEDER TRAY

110


3.2. HOW TO REMOVE THE BOTTOM FRAME

111


3.3. HOW TO REMOVE THE OPERATION PANEL BLOCK

112


3.4. HOW TO REMOVE THE OPERATION BOARD, HOOK SWITCH BOARDAND LCD

113


3.4.1. HOW TO SET THE LCD

114


3.5. HOW TO REMOVE THE THERMAL HEAD

115


3.6. HOW TO REMOVE THE PLATEN ROLLER

116


3.7. HOW TO REMOVE THE ANALOG, DIGITAL AND POWER SUPPLYBOARDS AND AC INLET

117


3.8. HOW TO REMOVE THE MOTOR BLOCK AND THE WIND GEARASSEMBLY

118


3.9. HOW TO REMOVE THE GEARS OF MOTOR BLOCK

119


3.10. HOW TO REMOVE THE SEPARATION ROLLER

120


3.11. HOW TO REMOVE THE IMAGE SENSOR (CIS) AND DOCUMENT FEEDROLLERS

121


3.12. HOW TO REMOVE THE PICKUP ROLLER

122


3.13. INSTALLATION POSITION OF THE LEAD WIRES

123


4 HOW TO REPLACE THE FLAT PACKAGE ICEven if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount),a soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.

4.1. PREPARATION · SOLDER

Sparkle Solder 115A-1, 115B-1 OR Almit Solder KR-19, KR-19RMA

· Soldering iron

Recommended power consumption is between 30 W to 40 W.

Temperature of Copper Rod 662 ± 50°F (350 ± 10°C)

(An expert may handle a 60~80 W iron, but a beginner might damage the foil by overheating.)

· Flux

HI115 Specific gravity 0.863

(Original flux should be replaced daily.)

4.2. FLAT PACKAGE IC REMOVAL PROCEDURE 1. Put plenty of solder on the IC pins so that the pins can be completely covered.

Note:

If the IC pins are not soldered enough, you may give pressure to the P.C. board when cutting the pins with a cutter.

2. Make a few cuts into the joint (between the IC and its pins) first and then cut off the pins thoroughly.

3. While the solder melts, remove it together with the IC pins.

When you attach a new IC to the board, remove all solder left on the land with some tools like a soldering wire. If some solder isleft at the joint on the board, the new IC will not be attached properly.

124


4.3. FLAT PACKAGE IC INSTALLATION PROCEDURE 1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins.

*Check the accuracy of the IC setting with the corresponding solderingfoil.

2. Apply flux to all pins of the FLAT PACKAGE IC.

3. Solder the pins, sliding the soldering iron in the direction of the arrow.

4.4. BRIDGE MODIFICATION PROCEDURE 1. Lightly resolder the bridged portion.

2. Remove the remaining solder along the pins using a soldering iron as shown in the figure below.

125


5 CIRCUIT OPERATIONS

5.1. CONNECTION DIAGRAM

126


5.2. GENERAL BLOCK DIAGRAMThe following is an outline of each device IC on the digital board. (Refer to GENERAL BLOCK DIAGRAM (P.128).).

1. ASIC (IC501)

Composed mainly of an address decoder and a modem control.

Controls the general FAX operations.

Controls the operation panel I/F.

Controls the thermal head I/F and CIS I/F.

Performs the image processing.

CPU and Real time clock

2. Flash ROM (IC502)

Contains all of the program instructions on the unit operations.

This memory is used mainly for the parameter working in the storage area.

3. Dynamic RAM (IC503)

This memory is used mainly for the parameter working in the storage area.

4. MODEM (IC505)

Performs the modulation and the demodulation for FAX communication.

5. Read Section

CIS image sensor to read transmitted documents.

6. Motor Driver (IC508)

Drives the transmission motor and the reception motor.

7. Thermal Head

Contains heat-emitting elements for dot matrix image printing.

8. Analog Board

Composed of ITS circuit and NCU circuit.

9. Sensor Section

Composed of a cover open and film end switch, a document set switch, a document top switch, a paper top sensor and a motorposition switch.

10. Power Supply Board Switching Section

Supplies +5V and +24V to the unit.

127


5.2.1. GENERAL BLOCK DIAGRAM

CROSS REFERENCE:

ANALOG UNIT BLOCK DIAGRAM (P.164)

128


5.3. CONTROL SECTION

5.3.1. BLOCK DIAGRAMIC

50

1A

SIC

AD

R[1

5:1

3]

RB

A[5

:0]

AD

R[1

2:0

]

DB

[7:0

]

XR

DX

WR

XR

OM

CS

XO

PR

BE

XM

DM

CS

IC5

02

FL

AS

HIC

50

5M

OD

EM

A[1

7:0

]

D[7

:0]

XR

D

XC

S

A[4

:0] D

[7:0

]

XR

DX

WR

XC

S

XW

DE

RR

INO

UT

GN

D

TO

OP

-PA

NE

L

KS

TAR

T,K

LAT

CH

KS

CLK

,KT

XD

KR

XD

TO

CIS

F1,F

TG

VID

EO

TO

TH

RM

AL

HE

AD

TH

DAT,

TH

CLK

,T

HLAT

ST

B1,S

TB

2,

ST

B3

TM

+24V

TO

MO

TO

RT

M[3

:0],T

XE

TO

PO

WE

RS

UP

PLY

+24V,+

5V,P

G,D

G

OP

-RE

SE

T

+24V

XR

ES

ET

IX

OR

ES

ET

XR

ES

ET

XB

AC

KE

N

RE

SE

T-IC

+3.3

V/B

AT

T+

2.5

V/B

AT

T

BAT

T+ -

24

MH

z

32

.76

8K

Hz

TX

RX

TO

AN

AL

OG

PC

B

A[12:0]

RBA[5:0]

A[4:0]

+5V

XR

AS

XC

AS

A[9

:0]

D[7

:0]

XR

DX

WR

XR

AS

XC

AS

IC5

03

DR

AM

A[7:4]

RBA[5:0]

FIL

ME

ND

PA

PE

RT

OP

SE

NS

OR

LE

D O

N

PS

501

PS

502

+3.3

V

CN

504

CN

503

CN

505

CN

502

TO M

OTO

RPO

SITI

ON

SW

CN

507

CN

506

CN

511 TO

SP

EA

KE

R

CN

510

IC5

08

MO

TO

R D

RV

CIS

LE

DO

N, C

ISO

N

IC516

BU

FF

ER

IC5

17

AN

D

IC5

15

BU

FF

ER

DIR

G

XC

AS

2

AB

32

.25

6M

Hz

+3.3

V

VD

ET

Q5

05

+3.3

V+

2.5

VQ

50

6

IC5

19

SP

-AM

P+

2.5

V/B

AT

T+

3.3

V/B

AT

T

XH

ST

RD

XH

ST

WR

KX

-FP

302B

X-W

/KX

-FP

302C

X-W

/KX

-FP

303S

A-W

: D

IGIT

AL

BO

AR

D: B

LOC

K D

IAG

RA

M

129


5.3.2. MEMORY MAP

130


This custom IC is used for the general FAX operations.

1. CPU:

This model uses a Z80 equivalent to the CPU operating at12 MHz. Most of the peripheral functions are performed bycustom-designed LSIs. Therefore, the CPU only works forprocessing the results.

2. RTC:

Real Time Clock

3. DECODER:

Decodes the address.

4. ROM/RAM I/F:

Controls the SELECT signal of ROM or RAM and the bankswitching.

5. CIS I/F:

Controls the document reading.

6. IMAGE DATA RAM:

This memory is programmed into the ASIC and uses 8 KBfor the image processing. (See Fig. A.*)

7. THERMAL HEAD I/F:

Transmits the recorded data to the thermal head.

8. MOTOR I/F:

Controls the transmission motor which feeds the document.

Controls the receiving motor which feeds the recordingpaper.

9. OPERATION PANEL I/F:

Serial interface with Operation Panel.

10. I/O PORT:

I/O Port Interface.

11. ANALOG UNIT:

Electronic volume for the handset and the monitor.

Sends beep tones, etc.

5.3.3. FLASH ROM (IC502)

The 512KB IC (FLASH ROM) carries a common area of 32KB and bank areas which each have 8KB (BK4~BK63). The addressesfrom 0000H to 7FFFH are for the common area and from 8000H to 9FFFH are for the bank areas.

5.3.4. DYNAMIC RAM (IC503)

The DRAM serves as CPU and receives memory.

The address is F200H~F3FFH (DRAM access window 1) and F600H~F7FFH (DRAM access window 2).

5.3.5. ASIC (IC501)

Fig. A

Note*:

This memory is incorporated into the ASIC (IC501) and used for the image processing.

Fig. A shows the memory map of the Image Data RAM.

131


Descriptions of Pin Distribution (IC501)

NO. SIGNAL I/O POWER SUPPLIEDVOLTAGE

DESCRIPTION

1 VSSA GND POWER SOURCE (ANALOG GND)2 VDDA 3.3 3.3V POWER SOURCE (ANALOG +3.3V)3 AIN1 A 3.3V CCD IMAGE SIGNAL INPUT4 AIN2 A 3.3V THERMISTOR TEMPERATURE WATCH INPUT5 AIN3 A 3.3V -----------6 AMON A 3.3V ANALOG SIGNAL MONITOR TERMINAL7 VSS GND POWER SOURCE (GND)8 X32OUT O 3.3V/BATT RTC (32.768KHz) CONNECTION9 X32IN I 3.3V/BATT RTC (32.768KHz) CONNECTION

10 VDD (3.3V / B) ----- POWER SOURCE (+3.3V/LITHIUM BATTERY)11 XBACEN I 3.3V/BATT BACKUP ENABLE12 XRAMCS O 3.3V/BATT NOT USED13 VDD (3.3V / B) ----- POWER SOURCE(+3.3V / LITHIUM BATTERY)14 VDD (2.5V/B) ----- POWER SOURCE (+2.5V / LITHIUM BATTERY)15 FTG O 3.3V SH SIGNAL OUTPUT FOR CIS (SI)16 F1 O 3.3V 01 SIGNAL OUTPUT FOR CIS (CLK)17 F2/OP O 3.3V OUTPUT PORT (HSTXMUTE)18 FR/OP O 3.3V OUTPUT PORT (MDMRST)19 CPC I 3.3V INPUT PORT (PTOP)20 RVN I 3.3V INPUT PORT (FILM END)21 IRDATXD/IOP O 3.3V OUTPUT PORT (CISLED)22 IRDARXD/IOP80 O 3.3V OUTPUT PORT (CISON)23 TXD/IOP O 3.3V OUTPUT PORT (ON-MREN)24 RXD/IOP O 3.3V OUTPUT PORT (SENLED)25 XRTS/IOP I 3.3V INPUT PORT (CISSEL)26 XCTS/IOP O 3.3V OUTPUT PORT (SPMUTE)27 VDD (2.5V) 3.3V POWER SOURCE (+2.5V)28 TONE1 A 3.3V TONE OUTPUT29 TONE2 A 3.3V TONE OUTPUT30 VOLUREF A 3.3V ANALOG REF VOLTAGE31 VOLUOUT A 3.3V VOLUME OUTPUT32 VOLUIN A 3.3V VOLUME INPUT33 XNMI I 3.3V HIGH FIXED34 FMEMDO/IOP I 3.3V INPUT PORT (MPOS)35 VDD (3.3V) ----- POWER SOURCE (+3.3V)36 VSS GND POWER SOURCE (GND)37 VSS GND POWER SOURCE (GND)38 VDD (3.3V) ----- POWER SOURCE (+3.3V)39 MIDAT/IOP O 3.3V OUTPUT PORT (HSRXEN)40 MICLK/IOP O 3.3V OUTPUT PORT (OF-MREN)41 MILAT/IOP O 3.3V OUTPUT PORT (MDMTXEN)42 20KOSC/IOP I 3.3V INPUT PORT (TONEIEN)43 XWAIT I 3.3V INPUT PORT (EXTHOOK)44 HSTRD/IOP O 3.3V NOT USED45 HSTWR/IOP O 3.3V NOT USED46 XOPRBE O 3.3V MFCS47 ADR15 O 3.3V CPU ADDRESS BUS 15 (NOT USED)48 ADR14 O 3.3V CPU ADDRESS BUS 14 (NOT USED)49 ADR13 O 3.3V CPU ADDRESS BUS 13 (NOT USED)50 VDD (2.5V) ----- POWER SOURCE (+2.5V)51 XOUT O 3.3V SYSTEM CLOCK (24MHz)52 XIN I 3.3V SYSTEM CLOCK (24MHz)53 VSS GND POWER SOURCE (GND)54 VDD (3.3V) ----- POWER SOURCE (+3.3V)55 XTEST O 3.3V 24MHz CLOCK56 TEST1 I 3.3V HIGH FIXED57 TEST2 I 3.3V HIGH FIXED58 TEST3 I 3.3V HIGH FIXED59 TEST4 I 3.3V HIGH FIXED60 XMDMINT I 3.3V MODEM INTERRUPT61 XMDMCS O 3.3V MODEM CHIP SELECT62 XRAS/IOP O 3.3V DRAM (IC503) ROW ADDRESS STROBE63 XCAS1/IOP O 3.3V DRAM (IC503) CULUM ADDRESS STROBE64 XCAS2/IOP O 3.3V DRAM(IC503) CHIPSELECT65 XRESCS2 O 3.3V NOT USED

132



DESCRIPTION

66 DB3 I/O 3.3V CPU DATA BUS 367 DB2 I/O 3.3V CPU DATA BUS 268 DB4 I/O 3.3V CPU DATA BUS 469 DB1 I/O 3.3V CPU DATA BUS 170 DB5 I/O 3.3V CPU DATA BUS 571 VDD (3.3V) ----- POWER SOURCE (+3.3V)72 VSS GND POWER SOURCE (GND)73 VSS GND POWER SOURCE (GND)74 VDD (3.3V) 3.3V POWER SOURCE (+3.3V)75 DB0 I/O 3.3V CPU DATA BUS 076 DB6 I/O 3.3V CPU DATA BUS 677 DB7 I/O 3.3V CPU DATA BUS 778 XROMCS O 3.3V ROM (IC502) CHIP SELECT79 RD O 3.3V CPU RD80 WR O 3.3V CPU WR81 ADR0 O 3.3V CPU ADDRESS BUS 082 ADR1 O 3.3V CPU ADDRESS BUS 183 ADR2 O 3.3V CPU ADDRESS BUS 284 ADR3 O 3.3V CPU ADDRESS BUS 385 ADR4 O 3.3V CPU ADDRESS BUS 486 ADR5 O 3.3V CPU ADDRESS BUS 587 VSS GND POWER SOURCE (GND)88 VDD (2.5V) ----- POWER SOURCE (+2.5V)89 ADR6 O 3.3V CPU ADDRESS BUS 690 ADR7 O 3.3V CPU ADDRESS BUS 791 ADR8 O 3.3V CPU ADDRESS BUS 892 ADR9 O 3.3V CPU ADDRESS 993 ADR10 O 3.3V CPU ADDRESS 1094 ADR11 O 3.3V CPU ADDRESS 1195 ADR12 O 3.3V CPU ADDRESS 1296 RBA0 O 3.3V ROM/RAM BANK ADDRESS 097 RBA1 O 3.3V ROM/RAM BANK ADDRESS 198 RBA2 O 3.3V ROM/RAM BANK ADDRESS 299 RBA3 O 3.3V ROM/RAM BANK ADDRESS 3100 RBA4 O 3.3V ROM/RAM BANK ADDRESS 4101 RBA5 O 3.3V ROM/RAM BANK ADDRESS 5102 RBA6/IOP96 O 3.3V A19103 STB1 O 3.3V STROBE SIGNAL OUTPUT TO THERMAL HEAD104 STB2 O 3.3V STROBE SIGNAL OUTPUT TO THERMAL HEAD105 STB3 O 3.3V STROBE SIGNAL OUTPUT TO THERMAL HEAD106 XRESET I 3.3V RESET INPUT107 VDD (3.3V) ----- POWER SOURCE (+3.3V)108 VSS GND POWER SOURCE (GND)109 VSS GND POWER SOURCE (GND)110 VDD (3.3V) ----- POWER SOURCE (+3.3V)111 XORESET O 3.3V NOT USED112 VDD(5V) 3.3V POWER SOURCE (+5V)113 VSS GND POWER SOURCE (ANALOG GND)114 XRESETI I 3.3V RESET INPUT115 WDERR O 3.3V WATCHED ERROR OUTPUT SIGNAL116 THDAT O 3.3V RECORDED IMAGE OUTPUT117 THCLK O 3.3V CLOCK OUTPUT FOR DATA TRANSFER118 THLAT O 3.3V PULSE OUTPUT FOR DATA LATCH119 STBNP I 3.3V INPUT PORT (TEST)120 RM0/IOP O 3.3V OUTPUT PORT (OPRESET)121 RM1/IOP O 3.3V NOT USED122 RM2/IOP O 3.3V OUTPUT PORT (PSHORT)123 RM3/IOP O 3.3V OUTPUT PORT (B)124 RXE/IOP I 3.3V INPUT PORT (BELL)125 TMO O 3.3V MOTOR A PHASE126 VDD (2.5V) 3.3V POWER SOURCE (+2.5V)127 VSS GND POWER SOURCE (GND)128 TM1/IOP O 3.3V MOTOR B PHASE129 TM2/IOP O 3.3V MOTOR /A PHASE130 TM3/IOP O 3.3V MOTOR /B PHASE131 TXE/IOP O 3.3V MOTOR ENABLE SIGNAL

133



DESCRIPTION

132 KSTART O 3.3V OPERATION PANEL CONTROL133 KLATCH O 3.3V OPERATION PANEL CONTROL134 KSCLK O 3.3V OPERATION PANEL CONTROL135 KTXD O 3.3V OPERATION PANEL CONTROL136 KRXD I 3.3V OPERATION PANEL CONTROL137 FMEMCLK/IOP O 3.3V OUTPUT PORT (THON)138 FMEMDI/IOP O 3.3V OUTPUT PORT (LINERLY)139 ADSEL1 O 3.3V CHANNEL SELECT SIGNAL FOR AIN2140 VDDA (2.5V) 3.3V POWER SOURCE (ANALOG +2.5V)141 VREFB A 2.5V A/D CONVERTER´S ZERO STANDARD VOLTAGE

OUTPUT142 VCL A 3.3V ANALOG PART STANDARD VOLTAGE SIGNAL143 VREFT A 3.3V A/D CONVERTER´S FULL SCALE VOLTAGE

OUTPUT144 VSSA GND POWER SOURCE (ANALOG GND)

5.3.6. RESET CIRCUIT (WATCH DOG TIMER)

The output signal (reset) from pin 4 of the voltage detect IC (IC507) is input to the ASIC (IC501) 114 and 106 pins.

1. During a momentary power interruption, a positive reset pulse of 50~70 msec is generated and the system is reset completely.

2. The watch dog timer, built-in the ASIC (IC501), is initialized by the CPU about every 1.5 ms.

When a watch dog error occurs, pin 115 of the ASIC (IC501) becomes low level.

The terminal of the ´WDERR´ signal is connected to the reset line, so the ´WDERR´ signal works as the reset signal.

134


5.3.7. RTC BACKUP CIRCUIT

1. Function

This unit has a lithium battery (BAT501) which works for Real Time Clock IC (RTC: inside IC501).

The RTC continues to work, backed up by a lithium battery even when the power switch is OFF.

The user parameters for autodial numbers, the system setup data and others are in the FLASH ROM (IC502)

2. RTC Inside (IC501) Backup Circuit Operation

When the power switch is turned ON, power is supplied through Q506 to the RTC (inside IC501). At this time, the voltage atpin 14 of the IC501 is +2.5V. When the power switch is turned OFF, the BAT501 supplies power to RTC through D503 andQ506. The voltage at pin 14 of IC501 is about +2.2V. When the power switch is OFF and the voltage of +3.3V decreases, pin14 of RTC (IC501) becomes roughly the same voltage as the battery voltage. RTC goes into the backup mode, in which thepower consumption is lower.

135


5.3.8. SUPERVISION CIRCUIT FOR THE THERMAL HEAD TEMPERATURE

1. Function

The thermistor changes the resistor according to the temperature and uses the thermistor´s characteristics. The output of pin139 of IC501 becomes a low level. Then when it becomes a high level, it triggers point A In point C, according to the voltageoutput time, the thermal head´s temperature is detected.

After the thermal head temperature is converted to voltage in B, it is then changed to digital data in the A/D converter insideIC501. The CPU decides the strobe width of the thermal head according to this value. Therefore, this circuit can keep thethermal head at an even temperature in order to stabilize the printing density and prevent the head from being overheated.

CROSS REFERENCE:

THERMAL HEAD(P.139)

136


5.4. FACSIMILE SECTION

5.4.1. IMAGE DATA FLOW DURING FACSIMILE OPERA TION

Copy (Fine, Super-Fine, Half Tone)

1. Line information is read by CIS (to be used as the reference white level) via route1, and is input to IC501. Refer to BLOCKDIAGRAM (P.138)

2. In IC501, the data is adjusted to a suitable level for A/D conversion in the Analog Signal Processing Section, and via route2it is input to A/D conversion (8 bit). After finishing A/D conversion, the data is input to the Image Processing Section viaroute3. Then via route4 and route5, it is stored in RAM as shading data.

3. The draft’s information that is read by CIS is input to IC501 via route1. After it is adjusted to a suitable level for A/Dconversion via route2, the draft’s information is converted to A/D (8 bit), and it is input to the Image Processing Section. Theother side, the shading data which flows from RAM via route6 and route7, is input to the Image Processing Section. Afterfinishing the draft’s information image processing, white is regarded as "0" and black is regarded as "1". Then via routes4and 5, they are stored in RAM.

4. The white/black data stored as above via routes6 and 8 is input to the P/S converter. The white/black data converted toserial data in the P/S converter is input to the Thermal Head via route9 and is printed out on recording paper.

Note:

Standard : Reads 3.85 times/mm

Fine : Reads 7.7 times/mm

Super-Fine : Reads 15.4 times/mm

Transmission

1. Same processing as Copy items 1 - 3.

2. The data stored in the RAM of IC501 is output from IC501 via routes6 and 10, and is stored in the system bus.

Via route11, it is stored in the communication buffer inside DRAM (IC503).

3. While retrieving data stored in the communication buffer synchronous with the modem, the CPU (inside IC501) inputs thedata to the modem along route12, where it is converted to serial analog data and forwarded over the telephone lines via theNCU Section.

Reception

1. The serial analog image data is received over the telephone lines and input to the modem via the NCU section, where it isdemodulated to parallel digital data. Then the CPU (IC501) stores the data in the communication buffer DRAM (IC503)along route12.

2. The data stored in DRAM (IC503) is decoded by the CPU (IC501) via route12, and is stored in DRAM (IC503) via routes13and 5.

3. Same processing as Copy item 4.

137


5.4.2. BLOCK DIAGRAM

138


5.4.3. THERMAL HEAD

1. Function

This unit utilizes the state of the art thermal printer technology.

The ink film is chemically processed. The ink film is comprised of two parts: an ink layer and a base film. When the thermal headcontacts this ink film, it emits heat momentarily, and the ink layer is melted and transferred to the paper. If this continues, lettersand/or diagrams appear, and the original document is reproduced.

2. Circuit Operation

Refer to the block diagram and the timing chart on the following page.

There are 27 driver ICs aligned horizontally on the thermal head and each one of these ICs can drive 64 heat-emitting registers.This means that one line is at a density of 64×27=1728 dots=(8 dots/mm).

White/Black (white=0, black=1) data in one line increment is synchronized at IC501 pin 117 (THCLK), and sent from IC501 pin116 (THDAT) to the shift register of the ICs. The shift registers of the 27 ICs are connected in series, and upon the shift of the1728 dot increment, the shift register becomes filled with data, and a latch pulse is emitted to each IC from IC501 pin 118(THLAT).

With this latch pulse, all the contents of the shift registers are latched to the latch registers. Thereafter, through the addition ofstrobes from the IC501 pins (103, 104, 105), only the dot location of black (=1) among latched data activates the driver, and thecurrent passes to heat the emitting body to cause heat emission.

Here, the two line strobes, STB1 to STB3, impress at intervals of 9.216 msec, as required for one-line printout.

The sequence is shown on the next page. [Moreover, for the strobe width, the thermistor value inside the thermal head isdetected according to IC501 pin 4. Depending on that value, the strobe width is recorded in FLASH Memory (IC502).Accordingly, the strobe width is determined.]

When the thermal head is not used, the IC501 (137, THON) becomes low , Q501 turns OFF, IC506 turns OFF, and the +24Vpower supply for the thermal head driver is not impressed to protect the IC.

139


140


5.4.4. SCANNING BLOCK

The scanning block of this device consists of a control circuit and a contact image sensor made up of a celfoc lens array, an LEDarray, and photoelectric conversion elements.

When an original document is inserted and the start button pressed, pin 21 of IC501 goes to a high level and the transistor Q507turns on.This applies voltage to the LED array to light it. The contact image sensor is driven by each of the FTG-F1 signals outputfrom IC501, and the original image illuminated by the LED array undergoes photoelectric conversion to output an analog imagesignal (SIG). The analog image signal is input to the system ASIC on AIN1 (pin 1 of IC501) and converted into 8-bit data by the A/Dconverter inside IC501. Then this signal undergoes digital processing in order to obtain a high-quality image.

141


Stepping Motor Drive ModeFunction Mode Phase Pattern Speed

Copy Standard orFine

1-2 432 pps (t=1/432)

Super Fine 1-2 216 pps (t=1/216)Paper Feed ——— 1-2 432 pps (t=1/432)Stand-by ——— All phases are

currently off.None

5.4.5. STEPPING MOTOR DRIVE CIRCUIT

1. Function

The stepping motor works for both transmission and reception.

2. Motor

During motor driving, pin 131 of ASIC IC501 becomes a high level, and Q503, Q502 turns ON. As a result, +24V is suppliedto the motor coil.

Stepping pulses are output from ASIC IC501 pins, 125, 128~130, causing driver IC508 pins, 16~13 to drive the Motor Coil. Themotor coil is energized sequentially in 2 phase increments, which causes a 1-step rotation. A 1-step rotation feeds 0.13 mm ofrecording paper or document paper. The timing chart is below.

When the motor suspends while it is in the receive mode (about 70~80 msec), pin 131 of ASIC IC501 becomes a low level andQ503 turns OFF. Then Q502 also turns OFF, and instead of +24 V, +5 V is supplied through D501 so that the motor is held inplace. When the system is in the stand-by mode, all of the motor drive transistors turn OFF. Consequently, the motor currentstops.

142


5.4.6. GEAR SECTION

This model provides a motor-driven gear mechanism for transmitting/copying documents and printing fax data. In this chapter,you will see how the gears work to select and operate a mode and how the gear section, sensors and rollers mechanically workduring the main operations (FAX transmission, FAX reception and Copy).

5.4.6.1. MODE SELECTION (See Fig. 1)

When a motor with Drive Motor Gear attached rotates clockwise (CW), Swing Gear C engages G15 and drives G14 to rotatecounterclockwise. This operation provide four mode options (A: Transmit mode, B: Paper-Pickup mode, C: Receive mode and D:Copy mode) selected by the Sensor Switch. (The Sensor Switch Lever’s position in the CAM (G15) controlled by the softwareselects a specific mode.) You can see which mode is selected by confirming the Mode Marker’s position as shown inFig. 1-a~1-d.

(Ex. If the Mode Marker is in position A, a transmit mode is selected.)

Note:

The arrows show the directions in which the active gears turn around.

Fig. 1: Mode Selection

143


5.4.6.2. MODE OPERATION

Once a mode is selected, the Drive Motor Gear rotates counterclockwise (CCW) and then the controlling positions of SwingGears A, B and C determine which gears convey their drive power in each mode.

A. Transmit mode (See Fig. A.) :

Swing Gear C engages G4 and conveys its power to the Separation Roller Gear through G3 and sets the Separation Roller forfeeding documents.

Fig. A: Transmit mode

144


B. Paper-Pickup mode (See Fig. B) :

Swing Gear A engages G10 and provides its power to the Pickup Roller Gear through G8. The Pickup Roller picks up and pre-feeds a recording paper until the recording paper pushes up the PAPER TOP SENSOR* lever.

Fig. B: Paper-Pickup mode

Note* :

See "Sensor Location" in SENSORS AND SWITCHES(P.151).

145


C. Receive mode (See Fig. C.) :

Swing Gear B engages G13 and conveys its power to the Platen Roller Gear through G6. Then, the Platen Roller feedsrecording paper for printing the received data.

Fig. C: Receive mode

146


D. Copy mode (See Fig. D.) :

Swing Gears B and C engages G13 and G4 respectively, and then G6 and G3 drive the Pickup Roller Gear and the SeparationRoller Gear for feeding recording paper and documents when the unit is in the copy operation.

Fig. D: Copy mode

147


5.4.6.3. MECHANICAL MOVEMENTS IN THE MAIN OPERA TIONS (transmittingdocuments, receiving faxes and copying)

5.4.6.3.1. IDLE STATUS

Note:

See “Sensor Locations ” in SENSORS AND SWITCHES(P.151).

CROSS REFERENCE:


148


5.4.6.3.2. TRANSMITTING DOCUMENTS

CROSS REFERENCE:

SENSOR SECTION(P.85).

5.4.6.3.3. RECEIVING FAX

Note:


149


5.4.6.3.4. COPYING

Note:


CROSS REFERENCE:


150


5.5. SENSORS AND SWITCHESAll of the sensor and switches are shown below.

Sensor CircuitLocation

Ref No. Sensor or Switch Name Message Error

Operation P.C.Board SW336 Document set SW [CHECK DOCUMENT]SW337 Document top SW [REMOVE DOCUMENT]SW338 Cover SW [COVER OPEN]SW401 Hook SW ————

Digital P.C.Board PS501 Film End sensor [CHECK FILM]PS502 Paper Top sensor [PAPER JAMMED]-------- Motor Position SW ————

Note:

See TEST FUNCTIONS(P.104). (#815: Sensor Check)

Sensor Locations

151


5.5.1. DOCUMENT TOP SW (SW337)................."REMOVE DOCUMENT"

When a document is brought to the read position, the SW becomes ON, and the input signal of IC301-15 pin (Operation) becomesa low level. When there is no document at the read position, the SW becomes OFF, and the input signal of IC301-15 pin(Operation) becomes a high level.

Operation BoardSW Signal (IC301-15 pin)

Out of the Read Position OFF High levelAt the Read Position ON Low level

5.5.2. DOCUMENT SET SW (SW336)................."CHECK DOCUMENT"

When a document is set, the SW becomes ON, and the input signal of IC301-19 pin (Operation) becomes a low level. When thereis no document, the SW becomes ON, and the input signal of IC301-19 pin (Operation) becomes a high level.

Operation BoardSW Signal (IC301-19 pin)

No document OFF High levelSet document ON Low level

152


5.5.3. COVER SWITCH (SW338)................"COVER OPEN "

When the operation panel cover is closed, the SW becomes ON, and the input signal of IC301-5 pin (Operation) becomes a lowlevel. When the cover is opened, the SW becomes OFF, and the input signal of IC301-5 pin (Operation) becomes a high level.

Digital BoardSW Signal (IC301-5 pin)

Cover open OFF High levelCover closed ON Low level

5.5.4. HOOK SWITCH (SW401)

When the handset is lifted, the switch turns OFF, and the signal at pin 16 of IC301 becomes high.

When the handset is returned, the switch turns ON, and the signal at pin 16 of IC301 becomes low.

Digital BoardSW Signal (IC301-16 pin)

ON-Hook ON Low levelOFF-Hook OFF High level

153


5.5.5. PAPER TOP SENSOR (PS502)........................"PAPER JAMMED"

When the recording paper is loaded on the print head, the shelter plate shuts the sensor light, and the photo transistor becomesOFF. The input signal of IC501-20 pin becomes a high level. Usually, the shelter plate is lifted, the photo transistor becomesON, and the input signal of IC501-20 pin becomes a low level.

Photo transistor Signal (IC501-20 pin)Recording paper top OFF High levelNo recording paper ON Low level

154


Signal (IC501-34 pin)Home position Low levelOther High level

5.5.6. FILM END SENSOR (PS501)........................"FILM EMPTY"

As the amount of the film decreases, the revolving speed of the rolled film becomes faster. When the film is used up, it comes offfrom the paper roll. The amount of the remaining film is measured by the revolving speed. When the film stops turning around, thesensor detects the film end.

The rotary encoder rotates slowly when the ink film is full (when printing), as shown in the diagram below. It rotates faster when itis near its end. Sensor PS501 converts the rotation of the rotary encoder into pulses and the amount of the remaining ink film isthen calculated internally by the ASIC (IC501) and stored into memory. Then an error message such as "FILM EMPTY" appearson the LCD display.

5.5.7. MOTOR POSITION SENSOR

This sensor is a detection switch for recording the position of the CAM.

155


5.6. MODEM SECTION

5.6.1. FUNCTION

The unit uses a 1 chip modem (IC505) that serves as an interface between the control section for FAX transmission andreception and the telephone line. During a transmitting operation, the digital image signals are modulated and sent to thetelephone line.

During a receiving operation, the analog image signals which are received via the telephone line are demodulated andconverted into digital image signals. The communication format and procedures for FAX communication are standardized byITU-T. This 1 chip modem (IC505) has hardware which sends and detects all of the necessary signals for FAX communication.

It can be controlled by writing commands from the CPU (IC501: inside ASIC) to the register in the modem (IC505).

This modem (IC505) also sends DTMF signals, generates a call tone (from the speaker), and detects a busy tone and dialtones.

Overview of Facsimile Communication Procedures (ITU-T Recommendation):

1. ON CCITT (International Telegraph and Telephone Consultative Committee)

The No. XIV Group of ITU-T, one of the four permanent organizations of the International Telecommunications Union (ITU),investigates and make recommendations on international standards for facsimiles.

2. Definition of Each Group

· Group I (G1)

Official A-4 size documents without using formats which reduce the band width of a signal are sent over telephone lines.Determined in 1968.

Transmission for about 6 minutes at a scanning line density of 3.85 lines/mm.

· Group II (G2)

Using reduction technology in the modulation/demodulation format, an A-4 size document is sent at an official scanning linedensity of 3.85 lines/mm for about 3 minutes.

Methods to suppress redundancy are not used.

Determined in 1976.

· Group III (G3)

Method of suppressing redundancy in the image signal prior to modulation is used. An A-4 size document is sent withinabout one minute.

Determined in 1980.

· Group IV (G4)

Transmission is via the data network. A method is provided for suppressing redundancy in signals prior to transmission, anderror-free reception of transmission is possible.

The scope of these facsimile applications is not limited simply to transmission of written statements. Through symbioticlinkages with other communication methods, it can be expected to expand to include integrated services.

156


3. Facsimile Call Time Series

As shown in the following diagram, the facsimile call time series is divided into five phases.

Phase A : Call setting

Call setting can be manual/automatic.

Phase B : Pre-message procedure

Phase B is a pre-processing procedure and sequence for confirming the status of the terminal, transmission route, etc., and forterminal control. It implements terminal preparation status, determines and displays terminal constants, confirmssynchronization status, etc. and prepares for transmission of facsimile messages.

Phase C : Message transmission

Phase C is the procedure for the transmitting facsimile messages.

Phase D : Post message procedure

Phase D is the procedure for confirming that the message is completed and received. For continuous transmission, phase Bor phase C is repeated for transmission.

Phase E : Call retrieval

Phase E is the procedure for call retrieval, that is for circuit disconnection.

4. Concerning Transmission Time

Transmission Time = Control Time + Image Transmission Time + Hold Time

Transmission time consists of the following.

Control time:

This is time at the start of transmission when the functions at the sending and receiving sides are confirmed, thetransmission mode is established, and transmission and reception are synchronized.

Image transmission time:

This is the time required for the transmission of document contents (image data). In general, this time is recorded in thecatalog, etc.

Hold time:

This is the time required after the document contents have been sent to confirm that the document was actually sent, andto check for telephone reservations and/or the existence of continuous transmission.

5. Facsimile Standards

ItemTelephone Network Facsimile

G3 MachineConnection Control Mode Telephone Network Signal ModeTerminal Control Mode T. 30 BinaryFacsimile Signal Format DigitalModulation Mode PSK (V. 27 ter) or QAM (V. 29)Transmission Speed 300 bps (Control Signal)

2400, 4800, 7200, 9600 bps (FAX Signal)Redundancy CompressionProcess(Coding Mode)

1 dimension : MH Mode2 dimension : MR Mode (K=2.4)

Resolution Main Scan : 8 pel/mmSub Scan : 3.85, 7.7l/mm

Line Synchronization Signal EOL Signal1 Line Transmission Time[ms/line]

Depends on the degree of data reduction.Minimum Value : 10, 20Can be recognized in 40ms.

157


6. Explanation of Communication and Compression Techn ology

a. G3 Communication Signals (T. 30 Binary Process)

For G3 Facsimile communication, this is the procedure for exchanging control signals between the sending and receivingmachines both before and after transmission of image signals.

Control signals at 300 bps FSK are: 1850 Hz...0, 1650Hz...1.

An example of a binary process in G3 communication is shown below.

Explanation of Signals

Control signals are comprised mainly of 8-bit identification signals and the data signals added to them. Data signals areadded to DIS and DCS signals.

Signal.....DIS (Digital Identification Signal)

Identification Signal Format.....00000001

Function:

Notifies the capacity of the receiving unit. The added data signals are as follows.

Signal.....DCS (Digital Command Signal)

Identification Signal Format.....X1000001

Example (Some models do not support the following items.):

Bit No. DIS/DTC DCS1 Transmitter --- T.2 operation2 Receiver --- T.2 operation Receiver --- T.2 operation3 T.2 IOC = 176 T.2 IOC = 1764 Transmitter --- T.3 operation5 Receiver --- T.3 operation Receiver --- T.3 operation6 Reserved for future T.3 operation features7 Reserved for future T.3 operation features.

158


Bit No. DIS/DTC DCS8 Reserved for future T.3 operation features.9 Transmitter --- T.4 operation

10 Receiver --- T.4 operation Receiver --- T.4 operation11, 12, 13, 14

0, 0, 0, 00, 1, 0, 01, 0, 0, 01, 1, 0, 00, 0, 1, 00, 1, 1, 01, 0, 1, 01, 1, 1, 00, 0, 0, 10, 1, 0, 11, 0, 0, 11, 1, 0, 10, 0, 1, 10, 1, 1, 11, 0, 1, 11, 1, 1, 1

Data signaling rateV.27 ter fall back modeV.27 terV.29V.27 ter and V.29Not usedReservedNot usedV.27 ter and V.29 and V.33Not usedReservedNot usedV.27 ter and V.29 and V.33 and V.17Not usedReservedNot usedReserved

Data signaling rate2400 bit/s, V.27 ter4800 bit/s, V.27 ter9600 bit/s, V.297200 bit/s, V.2914400 bit/s, V.3312000 bit/s, V.33ReservedReserved14400 bit/s, V.1712000 bit/s, V.179600 bit/s, V.177200 bit/s, V.17ReservedReservedReservedReserved

15 R8×7.7 lines/mm and/or 200×200 pels/25.4mm R8×7.7 lines/mm and/or 200×200 pels/25.4mm16 Two-dimensional coding capability Two-dimensional coding capability

17, 18(0, 0)

(0, 1)

(1, 0)

(1, 1)

Recording width capabilities1728 picture elements along scan line length of215 mm ± 1%1728 picture elements along scan line length of215 mm ± 1%2048 picture elements along scan line length of255 mm ± 1%2432 picture elements along scan line length of303 mm ± 1%1728 picture elements along scan line length of215 mm ± 1%2048 picture elements along scan line length of255 mm ± 1%Invalid

Recording width1728 picture elements along scan line length of215 mm ± 1%2432 picture elements along scan line length of303 mm ± 1%

2048 picture elements along scan line length of255 mm ± 1%

Invalid19, 20(0, 0)(0, 1)(1, 0)(1, 1)

Maximum recording length capabilityA4 (297 mm)UnlimitedA4 (297 mm) and B4 (364 mm)Invalid

Maximum recording lengthA4 (297 mm)UnlimitedB4 (364 mm)Invalid

21, 22, 23(0, 0, 0)(0, 0, 1)(0, 1, 0)(1, 0, 0)(0, 1, 1)(1, 1, 0)(1, 0, 1)(1, 1, 1)

Minimum scan line time capability of the receiver20 ms at 3.85 l/mm: T7.7 = T3.8540 ms at 3.85 l/mm: T7.7 = T3.8510 ms at 3.85 l/mm: T7.7 = T3.855 ms at 3.85 l/mm: T7.7 = T3.8510 ms at 3.85 l/mm: T7.7 = 1/2 T3.8520 ms at 3.85 l/mm: T7.7 = 1/2 T3.8540 ms at 3.85 l/mm: T7.7 = 1/2 T3.850 ms at 3.85 l/mm: T7.7 = T3.85

Minimum scan line time20 ms40 ms10 ms5 ms

0 ms24 Extend field Extend field25 2400 bit/s handshaking 2400 bit/s handshaking26 Uncompressed mode Uncompressed mode27 Error correction mode Error correction mode28 Set to "0". Frame size 0 = 256 octets 1 = 64 octets29 Error limiting mode Error limiting mode30 Reserved for G4 capability on PSTN Reserved for G4 capability on PSTN31 T.6 coding capability T.6 coding enabled32 Extend field Extend field33(0)(1)

Validity of bits 17, 18Bits 17, 18 are validBits 17, 18 are invalid

Recording widthRecording width indicated by bits 17, 18Recording width indicated by this field bit information

34 Recording width capability 1216 picture elements alongscan line length of 151 ± mm 1%

Middle 1216 elements of 1728 picture elements


Middle 864 elements of 1728 picture elements


Invalid


Invalid

38 Reserved for future recording width capability.39 Reserved for future recording width capability.40 Extend field Extend field41 R8×15.4 lines/mm R8×15.4 lines/mm

159


Bit No. DIS/DTC DCS42 300×300 pels/25.4 mm 300×300 pels/25.4 mm43 R16×15.4 lines/mm and/or 400×400 pels/25.4 mm R16×15.4 lines/mm and/or 400×400 pels/25.4 mm44 Inch based resolution preferred Resolution type selection

"0" : neuritic based resolution"1" : inch based resolution

45 Metric based resolution preferred Don’t care46 Minimum scan line time capability for higher resolutions

"0" : T15.4 = T7.7 "1" : T15.4 = 1/2T7.7

Don’t care

47 Selective Polling capability Set to "0".48 Extend field Extend field

Note 1 - Standard facsimile units conforming to T.2 must have the following capability : Index of cooperation (IOC)=264.

Note 2 - Standard facsimile units conforming to T.3 must have the following capability : Index of cooperation (IOC)=264.

Note 3 - Standard facsimile units conforming to T.4 must have the following capability : Paper length=297 mm.

Signal Identification Signal Format FunctionTraining 1 ——————— A fixed pattern is transmitted to the receiving side at a speed

(2400 to 9600 bps) designated by DCS, and the receiving sideoptimizes the automatic equalizer, etc., according to this signal.

TCF(Training Check)

——————— Sends 0 continuously for 1.5 seconds at the same speed as thetraining signal.

CFR(Confirmation to Receive)

X0100001 Notifies the sending side that TCF has been properly received. IfTCF is not properly received, FTT (Failure To Train) X0100010 isrelayed to the sender. The sender then reduces the transmissionspeed by one stage and initiates training once again.

Training 2 ——————— Used for reconfirming the receiving side like training 1.Image Signal Refer to the next page. ———————RTC(Return to Control)

——————— Sends 12 bits (0...01 × 6 times) to the receiver at the same speedas the image signal and notifies completion of transmission of thefirst sheet.

EOP(End of Procedure)

X1110100 End of one communication

MCF(Message Confirmation)

X0110001 End of 1 page reception

DCN(Disconnect)

X1011111 Phase E starts.

MPS(Multi-Page Signal)

X1110010 Completion of transmission of 1 page. If there are still moredocuments to be sent, they are output instead of EOP. After MCFreception, the sender transmits an image signal of the secondsheet.

PRI-EOP(Procedural Interrupt-EOP)

X1111100 If there is an operator call from the sender, it is output after RTC.

PIP(Procedural Interrupt Positive)

X0110101 This is output when an operator call is received.

160


b. Redund ancy Compression Process Coding Mode

This unit uses one-dimensional MH format.

161


5.6.2. MODEM CIRCUIT OPERATION

The modem (IC505) has all the hardware satisfying the ITU-T standards mentioned previously.

When the ASIC IC501 (61) is brought to a low level, the modem (IC505) is chip-selected and the resistors inside IC are selectedby the select signals from ASIC (IC501) ADR0-ADR4(pin 83~87). Commands are written through the data bus, and all processingis controlled by the ASIC (IC501) according to ITU-T procedures. Here, the INT signal dispatched from IRQ (pin 60 of IC505) to theASIC (IC501) implements post processing.

This modem (IC505) has an automatic application equalizer. With training signal 1 or 2 at the time of G3 reception, it canautomatically establish the optimum equalizer. The modem (IC505) clock is supplied by pin 55 of ASIC (IC501).

1. Facsimile Transmission/DTMF Line Send

The digital image data on the data bus is modulated in the modem (IC505), and sent from pin 44 via amplifier IC501(2→1),Analog SW IC509(1→2), amplifier IC511(2→1) and the NCU section to the telephone line.

Refer to CHECK SHEET (P.78).

2. Facsimile Reception

The analog image data which is received from the telephone line passes through the NCU section and enters pin 45 of themodem (IC505). The signals that enter pin 45 of the modem (IC505) are demodulated in the board to digital image signals, thenplaced on the data bus.

In this case, the image signals from the telephone line are transmitted serially. Hence, they are placed on the bus in 8 bit units.Here, the internal equalizer circuit reduces the image signals to a long-distance receiving level.

This is designed to correct the characteristics of the frequency band centered around 3 kHz and maintain a constant receivingsensitivity.

It can be set in the service mode.


3. DTMF Transmission (Monitor tone)

The DTMF signal generated in the modem (IC505) is output from pin 44, and the NCU section to the telephone line the sameas facsimile transmission signals.

(DTMF Monitor Tone)


4. Busy/Dial Tone Detection

The path is the same as FAX receiving. When it is detected, the carrier detect bit of the resistor in the modem (IC505) becomes1, and this status is monitored by ASIC (IC501).

162


5.7. DESCRIPTION OF BLOCK DIAGRAM IN ANALOG SECTION 1. Function

The analog section serves as an interface between the telephone line. The digital board (IC505) for transmission and receptionof FAX signals, switches between the digital board (IC505) and other sections by means of a multiplexer in the NCU section.The control signals to the individual analog sections are output mainly from ASIC IC501, and the status information for thevarious sections is also held in ASIC IC501.

Simple explanations for the various sections are given below.


[NCU Section]

This is the interface between the telephone line and external telephone. This is composed of a bell detection circuit, pulsedial generation circuit, EXT. TAM OFF-HOOK detect circuit, vox circuit, amplifier circuit for line transmission and reception,sidetone circuit, etc.

[Modem (IC505)]

This is used for FAX signal tone modulation, DTMF signal transmission. The DTMF signal is placed into the TX system.

163


5.7.1. ANALOG UNIT BLOCK DIAGRAM


71

DIG

ITA

L B

OA

RD

AN

ALO

G B

OA

RD

4 3

/BE

LL

T R

LIN

ER

LY

HSM

IC(+

)HS

MIC

(-)HS

SP(+

)HS

SP(-)

SP

(+)

SP

(-)

T1R1

2VC

N10

2L1

02

EX

-HO

OK

L103

RL1

01R

104

C10

5

R10

6

C10

8R

108

PC

101

R10

7

T101

+2.0

V R11

1

R11

3C

113

Q10

1

R11

6

R11

4

R11

5C

115

R11

7

C11

4

R11

8

IC10

1-2

C12

5

R12

1R

123

C12

2

R124

C12

4

C111

CN

104

R13

6

R13

8

R13

9C

139

R14

0C

140

R14

2

R14

1

IC10

1-1

C13

1

C13

3

R13

1

C13

2R

132

R13

4R

133

Q10

3

R64

9

R64

7

CN

510

Q10

2

D10

3

4 3

ON-M

REN

4 1 3 2

L110

L107

L108

L109

1 2

CD FC

2

FC1

GN

D

VC

C3 41 2

7 6 58S

PM

UTE

LIN

EO

UT

LIN

EIN

SP

KR

P

MIC

P

SP

KR

M

MIC

MR

582

R57

6C

573

C57

7

PIA

61 62 60 69 7271

OF-

MR

EN

C570R

575

C56

7

R57

3

R57

1

R57

1

R572 C568Q

508

R57

4C60

1R

566

IC50

1

3231

C579

IC51

1

R59

2

R587

R58

6

R584

C57

6

HS

RX

EN

R593 C586

Q51

0R

591

HS

TXM

UTE

C58

1

R58

3IC

511

R58

5

MD

MTX

EN

TON

E1E

N

R57

9

R58

0

C57

1

C57

2

R569 TON

E1

TON

E2

R60

0

R56

8Q

511

TON

E2E

N

MO

DE

M IC

IC50

5

L104

L105

PO

S10

1

R13

7

C13

6

R14

3

C63

9

IC51

9

1110

12

21

132 3

1

5 67

43

5

9 8

6

IC50

9

IC50

9

IC50

9

IC50

9

CN

501

4

5 6

7

5 6

5 6

7

CN

101

C64

2R

648

4

C11

2R

112

R10

3

PC

102

KX

-FP

302B

X-W

A

NA

LOG

BO

AR

D: B

LOC

K D

IAG

RA

M

164



71

DIG

ITA

L B

OA

RD

AN

ALO

G B

OA

RD

4 3

/BE

LL

T R

LIN

ER

LY

HSM

IC(+

)HS

MIC

(-)HS

SP(+

)HS

SP(-)

SP

(+)

SP

(-)

T1R1

2VC

N10

2L1

02

L103

RL1

01R

104

ZNR

101

R10

6

C10

8R

108

PC

101

T101

+2.0

V R11

1

R11

3C

113

Q10

1

R11

6

R11

4

R11

5C

115

R11

7

C11

4

R11

8

IC10

1-2

C12

5

R12

1R

123

C12

2

R124

C12

4

C111

CN

104

R13

6

R13

8

R13

9C

139

R14

0C

140

R14

2

R14

1

IC10

1-1

C13

1

C13

3

R13

1

C13

2R

132

R13

4R

133

Q10

3

R64

9

R64

7

CN

510

Q10

2

D10

3

4 3

R10

7

D11

0D

111

ON-M

REN

4 1 3 2

L110

L107

L108

L109

1 2

CD FC

2

FC1

GN

D

VC

C3 41 2

7 6 58S

PM

UTE

LIN

EO

UT

LIN

EIN

SP

KR

P

MIC

P

SP

KR

M

MIC

MR

582

R57

6C

573

C57

7

PIA

61 62 60 69 7271

OF-

MR

EN

C570

R57

5

C56

7

R57

3

R57

1

R57

1

R572 C568

Q50

8

R57

4C60

1R

566

IC50

1

3231

C579

IC51

1

R59

2

R587

R58

6

R584

C57

6

HS

RX

EN

R593 C586

Q51

0R

591

HS

TXM

UTE

C58

1

R58

3IC

511

R58

5

MD

MTX

EN

TON

E1E

N

R57

9

R58

0

C57

1

C57

2

R569 TON

E1

TON

E2

R60

0

R56

8Q

511

TON

E2E

N

MO

DE

M IC

IC50

5

L104

L105

PO

S10

1

R13

7

C13

6

R14

3

C63

9

IC51

9

1110

12

21

132 3

1

5 67

43

5

9 8

6

IC50

9

IC50

9

IC50

9

IC50

9

CN

501

4

5 6

7

5 6

5 6

7

CN

101

C64

2R

648

4

C11

2R

112

KX

-FP

302C

X-W

A

NA

LOG

BO

AR

D: B

LOC

K D

IAG

RA

M

165


5.7.1.3. for KX-FP3 03SA-W

71

DIG

ITA

L B

OA

RD

AN

ALO

G B

OA

RD

4 3

/BE

LL

T R

LIN

ER

LY

HSM

IC(+

)HS

MIC

(-)HS

SP(+

)HS

SP(-)

SP

(+)

SP

(-)

T1R1

2VC

N10

2L1

02

EX

-HO

OK

L103

RL1

01R

104

C10

5

R10

6

C10

8R

108

PC

101

R10

7

T102

+2.0

V R11

1

R11

3C

113

Q10

1

R11

6

R11

4

R11

5

R12

5

C11

5

R11

7

C11

4

R11

8

IC10

1-2

C12

5

R12

1R

123

C12

2

R124

C12

4

C111

CN

104

R13

6

R13

8

R13

9C

139

R14

0C

140

R14

2

R14

1

IC10

1-1

C13

1

C13

3

R13

1

C13

2R

132

R13

4R

133

Q10

3

R64

9

R64

7

CN

510

Q10

2

D10

3

4 3

ON-M

REN

R12

2

4 1 3 2

L110

L107

L108

L109

1 2

CD FC

2

FC1

GN

D

VC

C3 41 2

7 6 58S

PM

UTE

R120

C12

0LI

NE

OU

T

LIN

EIN

SP

KR

P

MIC

P

SP

KR

M

MIC

MR

582

R57

6C

573

C57

7

PIA

61 62 60 69 7271

OF-

MR

EN

C570

R57

5

C56

7

R57

3

R57

1

R57

1

R572 C568

Q50

8

R57

4C60

1R

566

IC50

1

3231

C579

IC51

1

R59

2

R587

R58

6

R584

C57

6

HS

RX

EN

R593 C586

Q51

0R

591

HS

TXM

UTE

C58

1

R58

3IC

511

R58

5

MD

MTX

EN

TON

E1E

N

R57

9

R58

0

C57

1

C57

2

R569 TON

E1

TON

E2

R60

0

R56

8Q

511

TON

E2E

N

MO

DE

M IC

IC50

5

L104

L105

PO

S10

1

R13

7

C13

6

R14

3

C63

9

IC51

9

1110

12

21

132 3

1

5 67

43

5

9 8

6

IC50

9

IC50

9

IC50

9

IC50

9

CN

501

4

5 6

7

5 6

5 6

7

CN

101

C64

2R

648

4

C11

2R

112

R10

3

PC

102

K

X-F

P30

3SA

-W

AN

ALO

G B

OA

RD

: BLO

CK

DIA

GR

AM

R1

54

R1

53

R1

52

D1

07

C1

53

Q1

07

166


5.8. NCU SECTION

5.8.1. GENERAL

This section is the interface between the telephone line and external telephone. It is composed of an EXT. TEL line relay (RL101),bell detection circuit, pulse dial circuit, TAM interface circuit, line amplifier and sidetone circuits and a multiplexer.

5.8.2. EXT. TEL. LINE RELAY (RL101)


Normally, this relay switches to the external telephone side (break) and switches to the open side (make) while OFF-HOOK.

IC501 (138) High Level → CN511 (9) High Level → CN101 (9) High Level → Q102 ON → RL101 (make)

5.8.3. BELL DETECTION CIRCUIT


The signal waveform for each point is indicated below. The signal (low level section) input to pin 124 of ASIC IC501 on thedigital board is read by ASIC and judged as a bell.

TEL LINE → PC101 (1, 2 - 4) → IC501 (124)

5.8.4. TAM INTERFACE CIRCUIT

This circuit is to switch between FAX receiving and the external TAM’s message recording automatically. This circuit consists of anEXT. TAM OFF-HOOK detect circuit, monitor transformer, multiplexer, amplifier, and VOX detect circuit.

For details, please refer to TAM INTERFACE SECTION(P.170).

5.8.5. PULSE DIAL CIRCUIT AND ON / OFF HOOK CIRCUIT

While OFF-HOOK, RL101 is ON. Q102 turns on by pin (138) of IC501 as well. On the other hand, while ON-HOOK, Q102 turnsOFF by pin (138) of IC501, then the line turns OFF. ON/OFF-HOOK, controlled by pin (138) of IC501, makes the pulse dialoperation possible.

IC501 (138) LINE RLY Low Level → CN511 (9) → CN101 (9) → Q102 OFF → RL101 OFF : DC Loop OFF

IC501 (138) LINE RLY High Level → CN511 (9) → CN101 (9) → Q102 ON → RL101 ON : DC Loop ON

167


5.8.6. LINE AMPLIFIER AND SIDE TONE CIRCUIT

5.8.6.1. for KX-FP302BX-W / KX-FP302CX-W


The reception signal output from the line transformer T101 is input to pin (2) of IC101 via C112, R112 and then the signal isamplified at pin (1) of IC101 and sent to the reception system at 11.6dB.

The transmission signal goes through C571 and R579 and enters IC511-pin (2), where the signal is amplified to about 24.8dB.Then, it is output from pin (1) of IC101 and transmitted to T101 via C125 and R121. If the side tone circuit is not applied, thetransmission signal will return to the reception amplifier via C112 and R112. When the side tone circuit is active, the signaloutput from IC101 pin (1) passes through C125, R123, C122, C115 and R115 and goes into the amplifier IC101 pin (3). Thiscircuit is used to cancel the transmission return signal.

5.8.6.2. for KX-FP3 03SA-W


The reception signal output from the line transformer T102 is input to pin (2) of IC101 via C112, R112 and then the signal isamplified at pin (1) of IC101 and sent to the reception system at 11.6dB.

The transmission signal goes through C571 and R579 and enters IC511-pin (2), where the signal is amplified to about 24.8dB.Then, it is output from pin (1) of IC101 and transmitted to T102 via C125 and R121. If the side tone circuit is not applied, thetransmission signal will return to the reception amplifier via C112 and R112. When the side tone circuit is active, the signaloutput from IC101 pin (1) passes through C125, R123, C122, C115 and R115 and goes into the amplifier IC101 pin (3). Thiscircuit is used to cancel the transmission return signal.

168


5.9. ITS (Integrated Telephone System) AND MONITOR SECTION

5.9.1. GENERAL

During the monitor operation, the speaker output passes through the power amplifier (IC519) [digital board].

The DTMF signal is output from the modem (IC505: digital board). The alarm tone, the key tone, bell tone, and beep are outputfrom gate array IC501 (digital board). During a pulse dial operation, the monitor tone is output from gate array IC501.

5.9.2. TELEPHONE MONITOR

1. Function

This is the function when you are not holding the handset and can hear the caller’s voice from the line.

2. Signal path


5.9.3. HANDSET CIRCUIT

1. Function

This circuit controls the conversation over the handset, i.e. the transmitted and received voices to and from the handset.

2. Signal path (Transmission signal)


3. Signal path (Reception signal)


5.9.4. MONITOR CIRCUIT

1. Function

This circuit monitors various tones, such as 1 DTMF tone,2 Alarm/Beep/Key tone/Bell 3 Dummy ring back tone.

2. Signal path

a. DTMF MONITOR

(Speaker Operation)


(Handset Operation)


b. ALARM/BEEP/KEY TONE/BELL


c. DUMMY RING BACK TONE


169


5.10. TAM INTERFACE SECTION

5.10.1. KX-FP302BX-W AND KX-FP3 03SA-W

5.10.1.1. FUNCTION

If EXT. TAM is selected in the Receive mode, the unit receives documents for FAX calls or the external TAM records a voicemessage automatically.

To switch between the answering machine and facsimile in the EXT. TAM Mode.

# EXTERNAL TAM OPERATION UNIT OPERATION1 When the bell signal rings as many times as the number

memorized into the connected answering machine (TAM),the answering machine is connected to the line and theanswering message is sent out to the line. (OGM out for 8~ 16 sec.)

The length of the answering message should be 8~16seconds.While the message is being played, the unit starts todetect the CNG signal.(A)If the unit detects the CNG signal, it will switch to FAXreceiving and disconnect the external TAM automatically.

2 After sending the OGM, the answering machine starts torecord the message of the other party (ICM recording).

After the OGM of the external TAM is finished, the unitstarts to detect approximately 5 seconds of no sounddetection. (B)If no sound is detected, the unit will switch to FAXreceiving and disconnect the external TAM automatically.If the unit cannot detect the CNG signal or no sound forabout 30 seconds, the unit will disconnect the line. (C)

Attention 1:

No sound detection lasts 20 seconds after the telephone call is received at the answering machine. If there is no sound for morethan 5 seconds (#701 in the service mode), it switches to the facsimile.

Attention 2:

When the answering machine cannot answer the telephone call because of disconnection or the recording tape is full, the unitpicks up the call after 5 rings (#006 in the feature). Then it switches to the facsimile.

170


5.10.1.2. CIRCUIT OPERATION

The TAM INTERFACE circuit consists of an EXT. TAM HOOK detection circuit, CNG signal from the other party’s detection circuit,VOX detection circuit (to judge sound/no-sound) and RL101 (to separate EXT. TAM).

1. EXT. TAM HOOK detection circuit

A bell is received at EXT. TAM and EXT. TAM is connected to the line, making a DC LOOP. Then, PC102 detects this voltage.During detection, PC102 (4) becomes low.

(DC LOOP)

Tip → L101(2-3) → J101 → PC102(2-1) → L105 → Tip1 → (EXT.TAM) → Ring 1 → L104→ RL101(5, 3) → L101(4-1) → L103→ POS101 → Ring

2. CNG/VOX signal detection circuit

The CNG signal from the other party’s FAX is detected in MODEM IC505 (digital board).

(Signal path)


3. Remote receiving

This is the parallel-connected DTMF signal for the TEL or EXT.TEL mode between T and R. When the other party is a FAX,the unit switches to FAX receiving.

(Signal Path)

Detects the DTMF signal in the MODEM.

171


5.10.2. KX-FP302CX-W

5.10.2.1. FUNCTION

The unit receives documents for FAX calls or the external TAM records a voice message automatically.

To switch between the answering machine and facsimile.

# EXTERNAL TAM OPERATION UNIT OPERATION1 When the bell signal rings as many times as the number

memorized into the connected answering machine (TAM),the answering machine is connected to the line and theanswering message is sent out to the line.

While the message is being played, the unit starts todetect the CNG signal.(A)If the unit detects the CNG signal, it will switch to FAXreceiving and disconnect the external TAM automatically.

172


5.10.2.2. USER-FRIENDLY RECEPTION FOR PARALL EL-CONNECTED TELEPHONE

When CNG signal is transmitted from the other party´s phone after a parallel-connected phone or an external phone goes OFF-Hook while the telephone is ringing, the machine automatically starts receiving FAX.

173


5.10.2.3. CIRCUIT OPERATION

The TAM INTERFACE circuit consists of CNG signal from the other party’s detection circuit, and RL101 (to separate EXT. TAM).

1. CNG signal detection circuit

The CNG signal from the other party’s FAX is detected in MODEM IC505 (digital board).

(Signal path)


2. Remote receiving

This is the parallel or series connected DTMF signal for the TEL or EXT.TEL mode between a and b. When the other party isa FAX, the unit switches to FAX receiving.

(Signal Path)

Detects the DTMF signal in the MODEM.

174


5.11. OPERATION BOARD SECTIONThe unit consists of a LCD (Liquid crystal display), KEYs and LEDs (light-emitting diodes). They are controlled by the Gate Array(IC301) and ASIC (IC501: on the DIGITAL BOARD). (Fig.-a)

The key matrix table is shown below.

CN301CN504

IC501

ASIC

LCD MODULE

GATE ARRAYIC301

CN302

DOCUMENT TOP SWDOCUMENT SET SW

8x5KEYSMATRIX

DIGITAL BOARD OPERATION BOARD

XL11, 12

KIN0~7

KSL0~4

KX-FP302BX-W/KX-FP302CX-W/KX-FP303SA-W OPERATION BOARD: BLOCK DIAGRAM

Key Matrix

175


5.12. LCD SECTIONThe Gate Array (IC301) works only for writing the ASCII code from the data bus (D4~D7). V0 is supplied for the crystal drive.

R303, R305, and R306 are density control resistors.

Consequently, in this unit, the timing (positive clock) is generated by the LCD interface circuitry in the gate array (IC301).

DIsplay mode Density Normal Dark2 lines (X1. 0) LED1 (IC301-22pin) H L

XLD15 (IC301-21pin) L LXLD14 (IC301-20pin) Hi-Z L

X1. 5 LED1 H HXLD15 Hi-Z LXLD14 Hi-Z Hi-Z

176


5.13. POWER SUPPLY BOARD SECTIONThis power supply board uses the switching regulator method.

[Input Circuit]

The input current goes into the input rectifier circuit through the filter circuit. The filter circuit decreases the noise voltage and thenoise electric field strength.

[Rectifier Circuit]

The input current is rectified by D101,D102,D103 and D104 and charges C106 to make DC voltage. Then it supplies power to theconverter circuit.

[Kick-on voltage circuit]

Bias is applied to the Q101 gate via this circuit when the AC power is turned on and Q101 begins operating.

177


The following is an overview of how the power supply unit is controlled.

The control method of this power supply unit is pulse width modulation.

When Q1 is ON, the energy is charged in the transfer primary coil according to E1. When Q1 is OFF, the energy is output from thesecondary transfer as follows.

L → D1 → Load → L

Then the power is supplied to the Load. When Q1 is ON, power is not output from the secondary side. The output voltage is fedback in the control IC according to the error amp rectifier. Then depending on how TON is controlled, stabilization occurs. Also, whenthe current load becomes too large, in order to decrease the voltage output, the increase in is controlled and the output voltageis stabilized.

Therefore, basically the timing: Ton/Toff of Q1 controls the output voltage.

178


[Surge Absorber Circuit]

This circuit is for absorbing surge voltage generated by the transformer.

[Control Circuit and Detecting Circuit]

The control circuit amplifies the output with increased voltage detected in the error detecting circuit. Then it drives the maintransistor.

In this power supply, the duty ratio is defined by changing the ON period of the main transistor.

This is shown as follows.

When the output voltage of the 24V circuit increases, the current of the photo coupler PC101 increases, the pulse width of theoutput control IC becomes narrower and the ON period of Q101 becomes shorter.

[Over Current Limiter (O.C.L)]

The highest drain current (Q101) is limited by a limiter circuit (IC101) of 24V. The 24V output is limited by this circuit.

[Over Voltage Circuit]

If the 24V output increases because the error detecting circuit or control circuit is broken, IC101 will recognize this signal and outputbecomes 0V.

Dummy load method (to quickly check the power supply output)

Refer to POWER SUPPLY BOARD SECTION (P.81).

179


6 TERMINAL GUIDE OF THE ICs TRANSISTORS ANDDIODES

180


7 FIXTURES AND TOOLS

181


8 CABINET, MECHANICAL AND ELECTRICAL PARTSLOCATION

8.1. OPERATION PANEL SECTION

182


8.2. UPPER CABINET SECTION

CROSS REFERENCE:

PICK UP BASE SECTION(P.184)

183


8.2.1. PICK UP BASE SECTION

184


8.3. LOWER CABINET / P.C.B. SECTION

CROSS REFERENCE:

MOTOR SECTION(P.186)

185


8.4. MOTOR SECTION

186


8.5. ACTUAL SIZE OF SCREWS

187


9 ACCESSORIES AND PACKING MATERIALS

188


Notes:

1. The marking (RTL) indicates that the Retention Time islimited for this item.

After the discontinuation of this assembly in production, theitem will continue to be available for a specific period oftime. The retention period of availability is dependent on thetype of assembly, and in accordance with the lawsgoverning parts and product retention.

After the end of this period, the assembly will no longer beavailable.

2. Important safety notice

Components identified by mark have specialcharacteristics important for safety. When replacing any ofthese components, use only manufacture´s specified parts.

3. The S mark indicates service standard parts and may differfrom production parts.

4. RESISTORS & CAPACITORS

Unless otherwise specified;

All resistors are in ohms (Ω) K=1000Ω, M=1000kΩ

All capacitors are in MICRO FARADS (µF) P=µµF

*Type & Wattage of Resistor

10.1. CABINET AND ELECTRICALPARTS

10.1.1. OPERATION PANEL SECTIONRef.No.

Part No. Part Name & Description Remarks

1 PFGG1067Y1 GRILLE, OPERATION PANEL(for KX-FP302BX-W/KX-FP302CX-W)

1 PFGG1067X1 GRILLE, OPERATION PANEL(for KX-FP303SA-W)

2 PFBX1146Z1 PUSH BUTTON, DIAL KEY

3 PFBX1147Z1 PUSH BUTTON, NAVI KEY

4 PFBX1148Z1 PUSH BUTTON, FAX KEY

5 PFKR1013Z1 GUIDE, DOCUMENT (RIGHT)

6 PFKR1020Z1 GUIDE, DOCUMENT (LEFT)

7 PFBH1009Z2 PUSH BUTTON, HOOK

8 PFDG1002Z GEAR, DOCUMENT GUIDE

9 PFJS08Q21Z CONNECTOR, 8 PIN

10 PFUS1093Z TORSION SPRING, SUPPORTROLLER

Ref.No.


11 PQDR10005Y ROLLER, S. EXIT PINTI

12 PFDF1040Y SHAFT, LOCK LEVER

13 PFDE1071Z2 LEVER, LOCK (RIGHT)

14 PFDE1070Z LEVER, LOCK (LEFT)

15 PFMH1046Y ANGLE, SHAIDING PLATE

16 PFUS1110Z TORSION SPRING, LOCK LEVER

17 PQDR9685Y ROLLER, SUPPORT

18 PFDF1005Z SHAFT, SUPPORT ROLLER

19 PFUS1025Z TORSION SPRING, ROLLER

20 PFUS1153Z TORSION SPRING, DOCUMENT FEED

21 PFHG1061Z RUBBER PARTS, SEPARATION

22 PFUS1182Z TORSION SPRING, SHAIDING

23 PFUS1156Z TORSION SPRING, EARTH

24 PFUV1041Y COVER, OPERATION PANEL

25 WLL20YB46M3M TERMINAL, HEAD EARTH LEAD


27 PFYCFHD301M COVER, HEAD BASE ASSÝ

27-1 PFHX1115Z COVER, SHEET RIBBON GUIDE

28 PFUS1154Y TORSION SPRING, POP UP

29 PFHR1115Z LEVER, DUMPER ARM

30 PFGP1199Z PANEL, LCD

31 PFGD1046X CARD, TELEPHONE NO.

32 PFGV1011Z TRANSPARENT PLATE, TEL. CARDCOVER

33 PFHX1495Z PLASTIC PARTS, SHEET/COPY

34 PFHX1496Z PLASTIC PARTS, SHEET/START

35 PFHX1497Z PLASTIC PARTS, SHEET/STOP

36 PFKS1028Z1 TRAY, DOCUMENT

37 Not Used

38 PFHR1128Z GUIDE, HEAD HOLDER (RIGHT)

39 PFHR1127Z GUIDE, HEAD HOLDER (LEFT)

40 PFMH1059Z ANGLE, HEAD FULCRUM

41 PFJHS016Z PRINTER UNIT, THERMAL HEAD

42 PFZUFP101M RIBBON GUIDE ASSÝ

42-1 PFHX1115Z COVER, RIBBON GUIDE SHEET

43 PFUS1152Z TORSION SPRING, THERMAL HEAD

44 PFHX1350Z SPACER, HEAD SHEET

45 PFQT1458Z INDICATION LABEL, TEL NO.(KX-FP303SA-W only)

10.1.2. UPPER CABINET SECTIONRef.No.


90 PFDG1038Z1 GEAR, RIBBON FLANGE

91 PFDG1037Z GEAR, RIBBON FLANGE

92 PFPE1032Z ACCESSORY PARTS, INK RIBBON(100m) (for KX-FP302BX-W/KX-FP302CX-W)

92 PFPE1190Z ACCESSORY PARTS, INK RIBBON(10m) (for KX-FP303SA-W)

93 PFHR1152Z CHASSIS, FILM CARTRIDGE

94 PFZX2FHD301M PAPER TRAY ASSÝ

95 PFZEFP101M GUIDE, SEPARATION RUBBERHOLDER ASSÝ

95-1 PFHR1118Z RUBBER PARTS, P. SEPARATIONHOLDER

95-2 PFHG1055Y RUBBER PARTS, P. SEPARATION

95-3 PFHX1270Z COVER, P. SEPARATION SHEET

96 PFDN1028Z ROLLER, PLATEN

97 PFDG1082Z GEAR, PLATEN ROLLER

98 PFDJ1011Z SPACER, PLATEN SUPPORT

99 PFDG1027Y GEAR, PLATEN DRIVE

100 PFHR1117Z1 COVER, CIS HOLDER

101 PFDR1008Z ROLLER, DUMPER S

102 PFDN1030Z ROLLER, DOCUMENT FEED

103 PFDG1071Z GEAR, SENDING

104 PFDJ1014Z SPACER, SUB ROLLER

105 PFDJ1007Z SPACER, ROLLER

106 PFDG1105Z GEAR, IDLER


10 REPLACEMENT PARTS LIST

189


Ref.No.


108 PF0U1016Y PHOTO ELECTRIC TRANSDUCER,CIS

109 PFUS1158Z TORSION SPRING, PAPER TRAY

110 PFGT1920Z-M NAME PLATE, AL(for KX-FP302BX-W)

110 PFGT1914Z-M NAME PLATE, AL(for KX-FP302CX-W)

110 PFGT1916Z-M NAME PLATE, AL(for KX-FP303SA-W)

111 PFZX1FHD301M PAPER STACKER KIT

111-1 PFKS1031Z3 TRAY, PAPER STACKER

111-2 PFKS1021Z3 TRAY, SUB STACKER

112 PFKM1090Z3 CABINET BODY, MAIN

113 PFUS1068Z COIL SPRING, PAPER SEPARATION

114 PFHX1526Z SPACER, SHEET

115 PFQT1538Z INDICATION LABEL, CARTRIDGE

10.1.2.1. PICK UP BASE SECTIONRef.No.


130 PFHR1116Y1 GUIDE, PICK UP BASE

131 PFDE1090Z3 LEVER, CASSETTE

132 PFKS1029Z TRAY, CASSETTE PLATE

133 PQDJ10002Z SPACER, ROLLER

134 PFDN1027Z ROLLER, PICK UP

135 PFDG1083Y GEAR, PICK UP ROLLER

136 PFUA1021Z CHASSIS, BACK TENSION PLATE

137 PFDG1098Z GEAR, RIBBON DRIVE

138 PFDG1103Z GEAR, BACK TENSION IDLER

139 PFHG1057Z SPACER, BACK TENSION FELT

140 PFDG1102Z GEAR, ENCORDER

141 PFUS1183Z TORSION SPRING, BACK TENSION

142 PFDG1029Y GEAR, RIBBON DRIVE

143 XUC2FY RETAINING RING

10.1.3. LOWER CABINE T/P.C.B. SECTIONRef.No.


160 PFMD1033Y FRAME, BOTTOM PLATE

161 PFHG1050Z RUBBER PARTS, LEG

162 PFJP03S04Z CONNECTOR, AC INLET

163 PQLB1E1 INSULATOR, FERRITE CORE S

164 PQJS02Q59W CONNECTOR, AC LEAD

165 WLR18YK26CM4 LEAD WIRE, EARTH

166 PQHR945Z BAND

167 PFAS50P006Z SPEAKER S

168 PFJS02R60Z CONNECTOR, 2 PIN

169 PFMH1075Z LEAF SPRING, SPEAKER HOLD

170 PFDE1089Y LEVER, PAPER TOP SENSOR

171 PFUS1166Z TORSION SPRING, PAPER TOPSENSOR

172 XWC4B WASHER

173 PFHX1264Y SPACER, STATIC ELECTRIC SHEET

174 PFDN1029Z ROLLER, SEPARATION


176 PQUS10055Z COIL SPRING, ONE WAY

177 PFDG1085Z GEAR, SEPARATION ROLLER

178 XUC2FY RETAINING RING

179 PFDE1059Z SPACER, DELAY



182 PFHX1263Z SPACER, ROLLING SHEET

183 PQHM112Z CLAMPER S

184 PFMD1032Y COVER, MAIN

185 PFUS1182Z TORSION SPRING, SHAIDING

186 PFHX1517Z INSULATOR, DIGITAL BOARDSHEET

187 PFUS1358Z COIL SPRING, EARTH ANALOG

188 PFHX1246Z COVER, SCREW

189 PFHX1524Z SPACER, EXIT SHEET

Ref.No.


190 PQHR136Z CLAMPER

191 PFQT1250Z INDICATION LABEL, CAUTION

192 PQLB1E1 INSULATOR, FERRITE CORE(KX-FP302CX-W and KX-FP303SA-W only)

S

10.1.4. MOTOR SECTIONRef.No.


200 PFUA1020Z CHASSIS, WIND GEAR

201 PFDG1107Z GEAR, K

202 PFDG1108Z GEAR, L

203 PFDG1109Z GEAR, M

204 PFDG1106Z GEAR, RIBBON DRIVE

205 PFDX1011Y GEAR, TORQUE LIMITTER

206 PFDG1086Y GEAR, A

207 PFDG1087Y GEAR, B S

208 PFUA1019U CHASSIS, MAIN GEAR

209 PFDG1110Z GEAR, G

210 PFDG1089Z GEAR, E

211 PFDG1021Z GEAR, C

212 PFDG1022Z GEAR, D

213 PFDG1090Z GEAR, F

214 PFHR1119Y ARM, GEAR

215 PFHR1120Z ARM, GEAR

216 PFHR1121Z ARM, GEAR

217 PFUS1147Z TORSION SPRING, GEAR

218 PFUS1159Z TORSION SPRING, GEAR ARM

219 PFDG1113Z GEAR, J

220 PFDG1111Z GEAR, H

221 PFDG1112Z GEAR, I

222 PFMD1034Y CHASSIS, MOTOR PLATE

223 PQST2A04Z SEESAW SWITCH, SENSOR

224 PFJQ1014Z DC MOTOR


226 PFUS1157Z TORSION SPRING, EARTH

227 PFHX1266Z WASHER

10.1.5. ACCESSORIES AND PACKINGMATERIALS

Ref.No.


A1 PQJA10038Y POWER CORD (for KX-FP302BX-W/KX-FP302CX-W)

A1 PFJA1023Z POWER CORD (for KX-FP303SA-W)

A2 PQJA10075Z CORD, TELEPHONE S

A3 PFJA1029Z CORD, HANDSET

A4 PFQW1643Z INSTRUCTION BOOK(QUICKREFERENCE GUIDE) (for KX-FP302BX-W)

A4 PFQW1637Z INSTRUCTION BOOK(QUICKREFERENCE GUIDE) (for KX-FP302CX-B/KX-FP303SA-W)

A5 PFJXE0805Z HANDSET (for KX-FP302BX-W/KX-FP302CX-W)

A5 PFJXE0905Z HANDSET (for KX-FP303SA-W)

A6 PFQX1615Z INSTRUCTION BOOK

A7 PFKS1032Z3 TRAY, A4 SPACER (LEFT)

A8 PFKS1033Z3 TRAY, A4 SPACER (RIGHT)

P1 PFPE1228Z-M GIFT BOX (for KX-FP302BX-W)

P1 PFPE1226Z-M GIFT BOX (for KX-FP302CX-W)

P1 PFPE1227Z-M GIFT BOX (for KX-FP303SA-W)

P2 PFPN1259Z CUSHION (RIGHT)

P3 PFPN1258Z CUSHION (LEFT)

P4 XZB32X45A04 PROTECTION COVER



P7 PFPH1029Z PACKING SHEET

190


10.2. DIGITAL BOARD PARTSRef.No.


PCB1 PFWP1FP302BX DIGITAL BOARD ASSÝ (RTL)(for KX-FP302BX-W)

PCB1 PFWP1FP302CX DIGITAL BOARD ASSÝ (RTL)(for KX-FP302CX-W)

PCB1 PFWP1FP303SA DIGITAL BOARD ASSÝ (RTL)(for KX-FP303SA-W)

(ICs)

IC501 C1ZBZ0001896 IC

IC502 PFWIFP302BX IC (for KX-FP302BX-W)

IC502 PFWIFP302CX IC (for KX-FP302CX-W)

IC502 PFWIFP303SA IC (for KX-FP303SA-W)

IC503 PFVIMS5148EF IC S

IC505 PFVIR676812 IC

IC507 PFVII5510011 IC

IC508 PFVIT2003APS IC S

IC509 PQVITC4066BF IC S

IC511 PQVINJM4558M IC S

IC515 C0JBAZ001478 IC

IC516 PFVITVT245FT IC S

IC517 PQVITC7S08F IC S

IC519 PQVINJM2113M IC S

(TRANSISTORS)

Q501 PQVTDTC143E TRANSISTOR(SI) S

Q502 2SB1322 TRANSISTOR(SI) S



Q505 2SC4155S TRANSISTOR(SI) S





Q510 PQVTDTC114EU TRANSISTOR(SI) S



Q513 2SB1218A TRANSISTOR(SI)


Q516 2SC4155R TRANSISTOR(SI) S


IC506 PFVTSI4431DY TRANSISTOR(SI) S

(DIODES)

D501 PFVDRMRLS245 DIODE(SI) S

D502 MA7160 DIODE(SI)

D503 PFVDRMRLS245 DIODE(SI) S

(BATTERY)

BAT501 PFSU1004Z BATTERY S

(CONNECTORS)

CN502 PQJP5G30Z CONNECTOR, 5 PIN S



CN505 PQJP12G30Y CONNECTOR, 12 PIN S



CN508 PQJS08X54Z CONNECTOR, 8 PIN

CN510 PQJP02G100Z CONNECTOR, 2 PIN

CN511 PQJP12A19Z CONNECTOR, 12 PIN

(COILS)

L509 PQLQR2KA20T COIL S







R562 PQLQR2KA20T COIL S

Ref.No.


(CERAMIC FILTERS)

L506 PFVF1A121ST CERAMIC FILTER

L514 PFVF1A121ST CERAMIC FILTER

(PHOTO ELECTRIC TRANSDUCERS)

PS501 PFVIRM574SL PHOTO ELECTRIC TRANSDUCER S

PS502 PFVIRM574SL PHOTO ELECTRIC TRANSDUCER S

(COMPONENTS PARTS)

RA501 EXB38V101JV COMPONENTS PARTS








RA509 EXRV8V471JV COMPONENTS PARTS S

RA510 EXRV8V471JV COMPONENTS PARTS S


(CRYSTAL OSCILLATORS)

X501 PFVCCFS32Z CRYSTAL OSCILLATOR S

X502 PFVBKB240ZAT CRYSTAL OSCILLATOR S

X503 PFVC32256ZAT CRYSTAL OSCILLATOR S

(FUSE)

F502 PFRB0031125T FUSE RESISTOR S

(RESISTORS)

L501 ERJ3GEY0R00 0

L502 ERJ3GEY0R00 0

L503 ERJ3GEY0R00 0

L504 ERJ3GEY0R00 0

L505 ERJ3GEY0R00 0

L507 ERJ3GEY0R00 0

L510 ERJ3GEY0R00 0

L511 ERJ3GEY0R00 0

L518 ERJ3GEY0R00 0

L520 ERJ3GEY0R00 0

L521 ERJ3GEY0R00 0

L522 ERJ3GEY0R00 0

L523 ERJ3GEY0R00 0

L531 ERJ3GEY0R00 0

L532 ERJ3GEY0R00 0

L533 ERJ3GEY0R00 0

RA513 EXB38V103JV 10k

R501 ERJ3GEYJ562 5.6k


R503 ERJ3GEYJ181 180






R509 ERJ3GEY0R00 0


R511 ERJ3GEY0R00 0

R512 ERJ3GEY0R00 0

R513 ERJ3GEY0R00 0


R515 ERJ3GEY0R00 0

R516 ERDS1VJ152 1.5k S

R517 ERJ3GEYJ102 1k

R522 ERJ3GEYJ223 22k




R526 ERJ3EKF1101 1.1k



R529 ERJ3EKF3602 3.6k

191


Ref.No.




R532 ERJ3GEYJ475 4.7M















R552 ERJ3GEYJ470 47

R553 ERJ3GEYJ105 1M

R555 PQ4R18XJ220 22

R556 PQ4R10XJ6R8 6.8 S









R566 ERJ3GEYJ102 1k

R567 ERJ3GEYJ102 1k




R571 ERJ3GEYJ105 1M

R572 ERJ3GEYJ185 1.8M





R577 ERJ3GEY0R00 0




R582 ERJ3GEYJ102 1k



R585 ERJ3GEYJ474 470k (for KX-FP302CX-W/KX-FP302BX-W)

R585 ERJ3GEYJ824 820k (for KX-FP303SA-W)















R603 ERG2SJ391 390









Ref.No.







R620 PQ4R18XJ2R2 2.2 S

R621 ERJ3GEYJ4R7 4.7

R622 PQ4R10XJ331 330 S














R644 ERJ3GEYJ102 1k


R646 ERJ3GEY0R00 0










(CAPACITORS)

C502 ECUV1H104ZFV 0.1 S

C503 ECEA1CK101 100 S

C504 PQCUV1H104ZF 0.1 S

C508 ECUV1H333KDV 0.033 S

C509 ECUV1H102KBV 0.001 S








C518 ECUV1H222KBV 0.0022 S

C519 ECUV1C104KBV 0.1 S


C523 ECUV1H120JCV 12P S







C534 ECEA1CK101 100 S












C548 ECEA1CK101 100 S



192


Ref.No.


C551 ECEA1CK101 100 S

C553 ECUV1H472KBV 0.0047 S

C554 ECUV1H472KBV 0.0047 S



C564 ECEA1CKS100 10 S















C580 ECUV1H390JCV 39P (for KX-FP302CX-W/KX-FP302BX-W)

S

C580 ECUV1H680JCV 68P (for KX-FP303SA-W) S


C582 PQCUV1H104ZF 0.1 S


C584 ECUV1H181JCV 180P (for KX-FP302CX-W/KX-FP302BX-W)

S

C584 ECUV1H820JCV 82P (for KX-FP303SA-W) S



C588 ECEA1HKS100 10 S
















C622 ECEA0JK221 220 S

C625 ECEA1CK101 100 S



C632 ECUV1C224ZFV 0.22 S


C639 ECEA1HKS4R7 4.7 S



C643 ECUV1H681KBV 680P S

C644 ECUV1H681KBV 680P S

10.3. ANALOG BOARD PARTS

10.3.1. for KX-FP302BX-WRef.No.


PCB2 PFLP1360BXZ ANALOG BOARD ASS´Y (RTL)

(IC)

IC101 PFVINJM2904M IC S

(TRANSISTORS)


Ref.No.




(DIODES)



D103 1SS119 DIODE(SI) S



(CONNECTOR AND JACKS)

CN101 PQJS12A10Z CONNECTOR, 12 PIN

CN102 PFJJ1T01Z JACK S


CN104 PQJJ1TB18Z JACK S

(CERAMIC FILTERS)

L102 PFVF2A102ST CERAMIC FILTER S





(COILS)

L101 PFLE003 COIL S





(COMPONENTS PARTS)

L112 EXCELDR35 COMPONENTS PARTS


PC101 PQVIPC814K PHOTO ELECTRIC TRANSDUCER S

PC102 CNC7S102 PHOTO ELECTRIC TRANSDUCER

(THERMISTOR)

POS101 PFRT002 THERMISTOR S

(RELAY)

RLY101 PFSL003Z RELAY S

(VARISTORS)

SA101 PQVDDSS301L VARISTOR S

SA102 PFRZ001Z VARISTOR S

(TRANSFORMER)

T101 G4A1A0000151 TRANSFORMER

(RESISTORS)

C127 ERJ3GEY0R00 0

C135 ERJ3GEY0R00 0

C143 ERJ3GEY0R00 0




R104 ERDS2TJ271 270 S

R105 ERG2SJ151 150

R106 ERDS1TJ103 10k S





R113 ERJ3GEY0R00 0







R121 ERDS2TJ331 330 S

193


Ref.No.




R125 ERJ3GEY0R00 0

R129 ERJ3GEY0R00 0













R144 ERJ3GEY0R00 0

R148 ERJ3GEY0R00 0

R149 ERJ3GEYJ680 68

(CAPACITORS)



C108 ECQE2E105KZ 1 S




C114 ECUV1C473KBV 0.047










C134 ECUV1H472KBV 0.0047 S






C142 ECUV1H221JCV 220P

10.3.2. for KX-FP302CX-WRef.No.


PCB2 PFLP1360CXZ ANALOG BOARD ASS´Y (RTL)

(IC)

IC101 PFVINJM2904M IC S

(TRANSISTORS)




(DIODES)








(CONNECTOR AND JACKS)

CN101 PQJS12A10Z CONNECTOR, 12 PIN



Ref.No.



(CERAMIC FILTERS)






(COILS)

L101 PFLE003 COIL S





(COMPONENTS PARTS)


(PHOTO ELECTRIC TRANSDUCER)

PC101 PQVIPC814K PHOTO ELECTRIC TRANSDUCER S

(RELAY)


(VARISTORS)

SA101 PFRZRA311P6T VARISTOR S


ZNR101 ERZVA7D121 VARISTOR S

(TRANSFORMER)

T101 G4A1A0000151 TRANSFORMER

(RESISTORS)

C127 ERJ3GEY0R00 0

C143 ERJ3GEY0R00 0




R105 ERG2SJ151 150






R113 ERJ3GEY0R00 0







R121 ERDS2TJ331 330 S




R129 ERJ3GEY0R00 0













R144 ERJ3GEY0R00 0

R148 ERJ3GEY0R00 0

R149 ERJ3GEY0R00 0

194


Ref.No.


(CAPACITORS)






C114 ECUV1A224KBV 0.0022





C124 ECUV1H152KBV 0.0015 S





C134 ECUV1H472KBV 0.0047 S







C142 ECUV1H121JCV 120P

10.3.3. for KX-FP3 03SA-WRef.No.


PCB2 PFLP1360SAZ ANALOG BOARD ASS´Y (RTL)

(ICs)

IC101 PQVINJM2904F IC S

(TRANSISTORS)

Q101 2SD1819A TRANSISTOR(SI) S


Q103 2SD1819A TRANSISTOR(SI) S




Q107 2SC2235 TRANSISTOR(SI) S


(DIODES)






D107 PFVDDGS1ZB60 DIODE(SI)

(CONNECTORS)

CN101 PQJS12A10Z CONNECTOR, 12 PIN S




(COILS)

L101 PFLE003 COIL S

L102 PQLQR2KA213 COIL S









(COMPONENTS PARTS)

Ref.No.




PC101 0N3181 PHOTO ELECTRIC TRANSDUCER

PC102 CNC7S102 PHOTO ELECTRIC TRANSDUCER

PC103 PQVIPC817CD PHOTO ELECTRIC TRANSDUCER S

PC104 PQVIPC817CD PHOTO ELECTRIC TRANSDUCER S

(THERMISTOR)

POS101 PQRPAR390N THERMISTOR S

(RELAY)


(VARISTORS)

SA101 PQVDDSS301L VARISTOR S


ZNR101 ERZVA7D151 VARISTOR

(TRANSFORMER)

T102 PFLT8E003 TRANSFORMER S

(RESISTORS)




R104 ERDS2TJ271 270 S

R105 ECEA1HKN010 1






R113 ERJ3GEY0R00 0








R121 ERDS2TJ271 270 S

R122 ERJ3GEYJ102 1k




R129 ERJ3GEY0R00 0





R135 ERJ3GEYJ105 1M










R145 ERJ3GEYJ105 1M




R149 ERJ3GEY0R00 0

R151 ERJ3GEYJ102 1k



R154 ERDS1TJ330 33 S




195


Ref.No.




(CAPACITORS)





C112 ECUV1H822KBV 0.0082

C113 ECUV1C104KBV 0.1

C114 ECUV1A224KBV 0.22







C124 ECUV1A224KBV 0.22


C127 ERJ3GEY0R00 0




C134 ECUV1H472KBV 0.0047 S

C135 ECUV1H682KBV 0.0068 S




C139 ECUV1C823KBV 0.082

C140 ECUV1C823KBV 0.082

C142 ECUV1H822KBV 0.0082

C143 ECUV1C104KBV 0.1

C151 ECKD2H681KB 680P S

C152 ECKD2H681KB 680P S




10.4. OPERATION BOARD PARTSRef.No.


PCB3 PFWP2FHD301M OPERATION BOARD ASS´Y (RTL)

(IC)

IC301 MN7D032Z9J IC

(CONNECTOR)

CN301 PQJP8G43Y CONNECTOR, 8 PIN S

(LIQUID CRYSTAL DISPLAY)

CN302 L5DAAFB00001 LIQUID CRYSTAL DISPLAY

(SWITCH)

SW301 PQSH1A105Z PUSH SWITCH S


















Ref.No.



















SW336 PFSH1A002Z SWITCH, DOCUMENT SET

SW337 PFSH1A002Z SWITCH, DOCUMENT TOP

SW338 PFSH1A011Z SWITCH, COVER

(RESISTORS)

J300 ERJ3GEY0R00 0









R318 ERJ3GEYJ4R7 4.7





(CAPACITORS)


C303 ECEA0JKS101 100









10.5. POWER SUPPLY BOARDPARTS

Ref.No.


PCB4 PFLP1227EZL POWER SUPPLY BOARD ASS´Y(RTL)

(ICS)

IC101 PFVIFA5317P IC

IC201 AN1431T IC

IC202 PFVITA7805F IC S

(TRANSISTORS)

Q101 2SK2651 TRANSISTOR(SI)

(DIODES)

D101 PFVD1N4005 DIODE(SI) S




D105 PFVDEG01C DIODE(SI) S

196


Ref.No.




D108 PQVDERA1802 DIODE(SI) S

D109 PQVDERA1506 DIODE(SI) S

D201 PFVDSF5LC20U DIODE(SI) S

D202 PFVDD1NL20U DIODE(SI) S

(CONNECTORS)

CN31 PQJP2D98Z CONNECTOR, 2PIN

CN301 PQJP8G30Z CONNECTOR, 8PIN

(COIL)

L101 PFLES11V0523 COIL

(RESISTORS)

J8 PQ4R10XJ000 0 S

R101 ERDS1J1105 0

R102 PQ4R10XJ823 82k S

R103 PQ4R10XJ823 82k S

R104 ERG2DJ204 200k S

R105 ERX2SJR22 0.22

R106 ERG1SJ470 47

R107 PQ4R10XJ680 68 S

R108 ERDS2FJ150 15

R109 ERDS2FJ100 10

R110 ERG2DJ204 200k S

R121 PQ4R10XJ103 10k S

R122 PQ4R10XJ391 390 S

R123 PQ4R10XJ221 220 S

R125 PQ4R10XJ103 10k S

R126 PQ4R10XJ562 5.6k S

R127 PQ4R10XJ182 1.8k S

R128 PQ4R10XJ124 120k S

R129 PQ4R10XJ124 120k S

R130 PQ4R10XJ154 150k S

R131 PQ4R10XJ154 150k S

R132 PQ4R10XJ154 150k S

R133 PQ4R10XJ154 150k S

R205 ERG2SJ681 680 S

R221 PQ4R10XJ222 2.2k S

R222 PQ4R10XJ222 2.2k S

R223 PQ4R10XJ101 100 S

R224 PQ4R10XJ273 27k S

R225 PQ4R10XJ332 3.3k S


PC101 0N3171 PHOTO ELECTRIC TRANSDUCER

(CAPASITORS)

C101 ECQU2A224MG 0.22

C102 ECQU2A104MV 0.1

C103 ECKNTS222ME 0.0022

C104 ECKNTS222ME 0.0022

C105 ECKNTS222ME 0.0022

C106 PFCEA400SX56 56 S

C107 ECKD3A470KBP 47P

C108 ECKD3A102KBP 0.001

C109 ECA1VHG470 47P

C121 ECUV1H472KBN 0.0047

C122 ECUV1C224KBX 0.22

C123 PQCUV1H681JC 680P S

C124 ECUV1H104KBW 0.1 S

C201 EEUFA1V471 470

C202 ECKD3A102KBP 0.001

C203 PFCEA16A1000 1000 S

C204 PFCEA35A47M 47 S

C205 PFCEA50A1M 1 S

(FUSE)

F101 PFBAHU215315 FUSE S

(COMPONENTS PARTS)


Ref.No.


(VARIABLE RESISTOR)

VR201 EVNDJAA03B53 VARIABLE RESISTOR

(VARISTOR)

ZNR101 ERZV10DK751U VARISTOR

(OTHERS)

T101 ETS29AK428AC TRANSFORMER

TH101 PFRRT09L8R2F THERMISTOR S

10.6. HOOK SWITCH BOARD PARTSRef.No.


PCB5 PFLP1361MZ-B HOOK SWITCH BOARD ASS´Y (RTL)

SW401 ESE14A211 PUSH SWITCH, HOOK

10.7. FIXTURES AND TOOLSRef.No.


EC1 PQZZ2K1Z EXTENSION CORD, 2 PIN

EC2 PFZZ5K13Z EXTENSION CORD, 5 PIN







KM79811245C0 BASIC FACSIMILE TECHNIQUE

(for training servicetechnicians)

Note:

Tools and Extension Cords are useful for servicing.

(They make servicing easy.)

197


11 P

RIN

TE

DC

IRC

UIT

BO

AR

D11

.1.

DIG

ITA

LB

OA

RD

(PC

B1)

:B

otto

mV

iew

+5VA

IC51

1

41

58

C586

R579

R636

C626

R589

C587

R605

R548

R549

R551

R634 C536C634 C538 C529

C610

C609Q505 R529

R526C619

C620

C545

C605

R597

R598

R599

R539

R542

R540R541

R543

R595

R614R537

Q514

Q507

L533

L531R515

R513R512R511L512R510R517

L532

R621

J504 R596

R557

R562

R629

R635

C603

R523C509

R533

L505

R514

Q503

R604

R544

R531

Q506

+3.3

VABA

T

R532

C644

C643

L504

L503L502 C518

C514C635

C517

C516C547

C512

R644

R602

R556

C637

J503

C504

L534

C502

R645C537

C533

C531

C513

R550

A1 ROM

CS

CE2

C628

C542

L511

R646

R652

R649

A2

A3

A11

A4A1

8A1

9

A10

CE1

A0

A5

A6

A15

A7A1

6A9 A8

A14

+3.3

VD

+2.5

V

R607

R608

01

23

45

67

89

01

23

45

67

89

R606

C585R590

L509

C571

C572C581

C560

R654

L517C546

L516

L515

L510C583

C575C539

C566

C569

C535

R555

L518

R568

R600

R577

C559C558

12

34

56

78

910

1112

DG

PFU

P12

42ZA

+5VD

L519

L520

C614

C589

R580R583R593

AGAG

-M

D4D3

D7

D5

D2

D0RD

D1D6

MFC

SRE

SET

Q501

R502

IC50

6

C505

R501C604

PS50

2

D501

R509

4 5

1 8

+24V

A17

WR

A13

A12

D503

BAT

+2.5

VABA

T

PS50

1

PG

KX

-FP

302B

X-W

/KX

-FP

302C

X-W

/KX

-FP

303S

A-W

DIG

ITA

L: B

otto

m V

iew


198

11.2

. D

IGIT

AL

BO

AR

D(P

CB

1):

Com

pone

ntV

iew

CN50

1

R639

R525

PC

B-C

H

MO

DE

L

AUTO

-CH

RE

F-C

H

R524

Q504

R640R642

C508

R527

F502

R528 R5

30

CN50

2

CN50

5CN

503

R632

C551

C523

C525

X501

AMO

NR5

19

C524

C522

C623

L501

R522

144

+2.5

V

R601

C526

C527

108

C640

C639C641R647

R613

109

TEST B

A C515

C621

1

C611 CN

507

CN50

8

12

81

R603

C636

C510

R615

C632

C503

C633

CN50

6

71

101

CN50

4

81

+5VD

C511

121

C646

R503R504

IC516

R505R508R506

L522

20

10

R631

Q51

3FT

G

VIDE

O1

11

R507

C612

IC50

8BAT5

01

PG

DG

51

1.25

VA

R516

R641 R643

Q516 Q517

Q502

D502

E

2 1

+3_3

VBAT

J501

R650

C645

R651 IC

519

C642

RA50

5RA

504

RA50

3RA

502

J502

IC50

2

17321 16

RA50

1

C629

IC50

3

C543

L507

1528

141

R630

1

IC517

C630

R612R611R610R609

R536C613

L521

RA51

0RA

509

1

11 10

20

IC51

5

RA50

7RA

508

L523C631

R626R625

73

72 R552

R553

C540

ADR1

5

37

36 NMI

R545

R548

R560

R538

IC50

1

ADR1

4

R618

RA511

R561C553C554R564

L514

R563

R558

RA506

C578

C565

C564C567R566

C601Q511

R571

R575

C600

CN511

121

R570

R573

R581

C584

C577 R582 R565R567

R576C573C561

R620

J505

R559

ADR1

3

R619

C574

IC50

7

13 4

5

IC505

7

14

IC50

9RA

513

Q51

2R591

R586

R594

Q51

0C6

24R5

74

R622

C582

C588

Q50

9C5

80

R585

R587

R588

C579

R592

C576R584

C570

R569C563

R655R653R656

8

C534

C549

3964

128

103

C550

+3.3

V

X503

XCLK

EYES

YNC

EYEC

LK

EYEX

Y

C598

C599

3865

110

2

1

C541 C6

18

C622

X502

L506

R648

+2_5

VBAT

AGC6

25

Q50

8 R572

C568

R562

+5VA

+24V

RESE

TXT

EST

KX

-FP

302B

X-W

/KX

-FP

302C

X-W

/KX

-FP

303S

A-W

DIG

ITA

L: C

omop

nent

Vie

w

RESE

TW

DERR


199

11.3

. A

NA

LOG

BO

AR

D(P

CB

2):

Bot

tom

Vie

w

R123

2 4 6 8 10 12

AB

CD

EF

G

AB

C1

23

45

67

89

AB

C

ab

cd

PFUP

1244

ZA

CN10

2CN

103

EXT.

TEL

LINE

C127

C128

R113

R128

C124

Q10

2 Q10

5Q

104

L111

R108

R144

R145

R122

C122

R125

C115

C129

R119

R112

R115

R114

Q10

1C1

13

C114

C112

R151PC

103

41

Q10

8R1

57R1

58

R155

R153

R152

C106

Q10

3

C135

R135

R134

R132

C134

R133

C111

L110

R149

L108

L107

C131

L109

R156

C154

D107

C105

C107

R159

R126

IC10

1

1 458

Q10

6

R127

R118

R116

C116

C119

C118

R143

C143

R117

C117

R141

C141

R111

R130

R142

C142

C144

R139

C139

C140

C137

R138

C138

R136

R131

R137

R140

R103

R146

C104

R101

R102

C101

R147

R148

R124

C123

Q10

9

R129

C121

C120

L103

L102

L104

L105

PC10

1 41 PC

102 4

1

PC10

44

1

KX

-FP

302B

X-W

/KX

-FP

302C

X-W

/KX

-FP

303S

A-W

AN

ALO

G: B

otto

m V

iew


200

11.4

. A

NA

LOG

BO

AR

D(P

CB

2):

Com

pone

ntV

iew

CN10

3

J122

D110

POS1

01

SA10

1

J105

AUTO

-CH

PCB-

CH

SA10

2R1

07

RLY1

01

J107

D111

C108

L112

L101

J102

J101

J106

PC10

1PC

102

R104

J120

J104

C152

C151

CN10

4

R106

R105

C155

C153

D108

Q10

7

R154

D102

D101 J1

08

J109

J103

C136

C103

C102

J119

J113

J114

J116

J118

J117 CN

101J1

15

J112

C125

D103

112

C133

J121T1

01

D105

D106 C1

32

T102

E

PC10

4

R121

R120

C126

J110

J111

ZNR1

01

PC10

3

CN10

2

PFUP

1244

ZA

KX

-FP

302B

X-W

/KX

-FP

302C

X-W

/KX

-FP

303S

A-W

AN

ALO

G: C

ompo

nent

Vie

w


201

11.5

. O

PE

RA

TIO

N(P

CB

3)/

HO

OK

SW

(PC

B5)

BO

AR

D:

Bot

tom

Vie

w

R314

C304 C308

C310C321

C302

C318R319R322

C309C305

R315

R320 R316R321

R317

C316C317C319

J300

IC30

133

441

1112

22

SW338

SW336

R306R307R303R305R304

C314R318C320

SW337

AB

CD

EF

G

AB

C1

23

45

67

89

AB

CBL

ACK

RED

ab

cd

PFUP

1245

ZA-A

PSUP

1245

ZA-B

BLAC

K

RED

KX

-FP

302B

X-W

/KX

-FP

302C

X-W

/KX

-FP

303S

A-W

OP

ER

ATIO

N/H

OO

K S

W: B

otto

m V

iew


202

11.6

. O

PE

RA

TIO

N(P

CB

3)/

HO

OK

SW

(PC

B5)

BO

AR

D:

Com

pone

ntV

iew

1

SW33

1

4

SW32

6

7

SW32

1

SW31

3

2

SW33

2

3

SW33

3

5

SW32

7

6

S1 S2 S3 S4

SW32

8

SW33

5

S5

SW33

4

S6

SW32

9

S7

SW31

8

SW30

6

LOW

ER

SW32

0

COPY

SW30

5

HELP

SW31

9

C-ID

SW32

4

STO

P

SW30

2

STAR

T

SW30

1

SW30

4SW

316

J307

SW31

1

ANS

MEN

U

SW40

1

PSUP

1245

ZA-BJ3

01

SW30

7

J302

110

CN30

2

PFUP

1245

ZA-A

SW33

0

SW32

5

SW31

7

8

SW32

2

9

SW32

3

0

SW31

4 MUT

E

SW31

0

FLAS

H

SW30

8

REDI

AL/P

AUSE

SW30

9

MO

NITO

R

SW31

2

SW31

5

SW30

3

AB

CD

EF

G

AB

C1

23

45

67

89

AB

C

PCB-

CH

AUTO

-CH

ab

cd

J308

J303

J304

8 1C3

03

CN30

1

J306

J305

KX

-FP

302B

X-W

/KX

-FP

302C

X-W

/KX

-FP

303S

A-W

OP

ER

ATIO

N/H

OO

K S

W: C

ompo

nent

Vie

w


203

11.7. P

OW

ER

SU

PP

LYB

OA

RD

(PC

B4)

CAUTIONFOR CONTINUED PROTECTION AGAINST RISK OF

FIRE. REPLACE ONLY WITHSAME TYPE

ANDRATINGSOF FUSE( F101 )

T3.15AH 250V

L101

R101

C102R109

R105

R108

T101

C206

VR201

PC101

D106

TH101

D107D109IC101

ZNR101

F101

C101

D104

D103 C103

C104

C106

R106

R104

R110

L103Q101

C109C108

C107

D108D105

D202

R205

J6

J5

J4

IC202 D201

IC201

C202

C205C204 J10

J7

C201

CN30118

C203

C105

D102

J1

J3J2

D101

CN31

N L

SRF913EKPRIM

ARYSECO

NDARY

(CO

MP

ON

EN

T V

IEW

)

T3.15AH 250V

F101

R125

R107

R122S D G

R127

J8T101

C223R223

R121

R224

R225

24 G G G 5 G

C221

C224

CN301

R126

C121

C124

C122R123

C123

1 85

R103R102

CN31

68-4494A

7694VÐ0

NL

SRF913EKMITSUMI ELEC. CO., LTD.

R222

R221

R133

PC101

R128

R129

R130R131R132

PRIMARY

(BO

TT

OM

VIE

W)

KX

-FP

302BX

-W/K

X-F

P302C

X-W

/KX

-FP

303SA

-W P

ower S

upply

KX-FP302CX-W/KX-FP302BX-W/KX-FP303SA-W

204

12 FOR THE SCHEMATIC DIAGRAMSNote:

1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.

2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.

205


13 SCHEMATIC DIAGRAM

13.1. DIGITAL BOARD (PCB1)

KRXD/KTXDKSCLK

KLATCHKSTART

....

....

....

TX0TX1TX2TX3TXE

STB1STB2STB3

THDATTHCLKTHLAT

....

....

24MHz

32.768KHz

R516

1.5K(1/2W)

F502

1.25

A

R50

9

0

+5VD

L505 0

L502 0

R51

4

820

IC5081

2

3

4

5

6

7

8GND9

10

11

12

13

14

15

16

+24V

L503 0

D502

Q503 L501

0

L504 0

Q502D501

R50

1

5.6K

+24V

C509

K1000P

+5VD

R523 43K

R50

2

4.7K

R522 22K

IC5061 S2 S3 S4 G 5D

6D

7D

8D

IC501ASIC

1VS

SA2

VDD

A3.3

3A

IN1

4A

IN2

5A

IN3

6A

MO

N7

VS

S8

X3

2O

UT

9X

32

IN1

03

.3V

/BA

TT

IN1

1X

BA

CK

EN

12

XR

AM

CS

13

3.3

V/B

AT

TO

UT

14

2.5

V/B

AT

TIN

15

FT

G1

6F

11

7F

2/O

P1

8F

R/O

P1

9C

PC

/IP

20R

VN

/IP

21IR

DA

TX

D/IO

P8

122

IRD

AR

XD

/IO

P8

023

TX

D/IO

P3

024

RX

D/IO

P3

125

XR

TS

/IO

P3

226

XC

TS

/IO

P3

327

VD

D2

.5V

28T

ON

E1

29T

ON

E2

30V

OL

1R

EF

31V

OL

2O

UT

32V

OL

3IN

33X

NM

I34

FMEMDO/IOP26

35

VDD3.3V

36 VSS

37VSS38VDD3.3V39MIDAT/IOP4540MICLK/IOP4641MILAT/IOP474220KOSC/IOP5643XWAIT/IP6044XHSTRD/IOP4045XHSTWR/IOP4146XOPRBE/MUX/OP5347ADR15/OP48ADR14/OP49ADR13/OP50VDD2.5V51XOUT52XIN53VSS54VDD3.3V55XTEST56TEST157TEST258TEST359TEST460XMDMINT61XMDMCS62XRAS/IOP4263XCAS1/IOP4364XCAS2/IOP4465XRESCS2/OP7166DB367DB268DB469DB170DB571VDD3.3V72VSS

73VS

S74

VDD3

.3V75

DB

076

DB

677

DB

778

XR

OM

CS

79X

RD

80X

WR

81A

DR

082

AD

R1

83A

DR

284

AD

R3

85A

DR

486

AD

R5

87V

SS

88V

DD

2.5

V89

AD

R6

90A

DR

791

AD

R8

92A

DR

993

AD

R1

094

AD

R1

195

AD

R1

296

RB

A0

97R

BA

198

RB

A2

99R

BA

310

0R

BA

410

1R

BA

5/O

P10

2R

BA

6/IO

P9

610

3S

TB

110

4S

TB

210

5S

TB

310

6XR

ESET

107

VDD3

.3V10

8VS

S

109 VSS110 VDD3.3V111 XORESET112 VDD5.0V113 VSS114 XRESETI115 XWDERR116 THDAT117 THCLK118 THLAT119 STBNP120 RM0/IOP00121 RM1/IOP01122 RM2/IOP02123 RM3/IOP03124 RXE/IP04125 TM0/IOP10126 VDD2.5V127 VSS128 TM1/IOP11129 TM2/IOP12130 TM3/IOP13131 TXE/IP14132 KSTART133 KLATCH134 KSCLK135 KTXD136 KRXD137 FMEMCLK/IOP24138 FMEMDI/IOP25139 ADSEL1140 VDDA2.5V141 VREFB142 VCL143 VREFT144

VSSA

C52

4

Z0.1

u

AMON

ADR13

C52

3

J12P

ADR14

X501

32.768KHz

( )R537

NC

+3.3VD

C52

5

J15P

ADR15

+5VD

+5VD

PS5011

2

3

4

R52

5

100K

C52

2

K0.

1u

C537

Z0.1u

C536Z0.1u

C53

3Z0

.1u

C53

1

Z0.1

u

C527Z0.1u

C516

Z0.1u

C513Z0.1u

C51

8

K22

00P

R53

3

20K C519 K0.1u

C514Z0.1u

C515Z0.1u

C54

5

Z0.1

u

R56

0

10K

C54

8

6.3V

100u

R55

9

10K

C510Z0.1u

R51

71K

+5VD

DG

C50

2

Z0.1

u

DG

+5VD

C50

3

6.3V

100u

+24V

CN506

7+24V

6+24V

5+24V

4PG

3PG

2DG

1+5V

BA

T501

3.3V

R54

4

2.2K

J501

IC5024M FLASH (PROGRAM)

8VDD

10 A1611 A15

12 A12

13 A714 A615 A516 A417 A318 A219 A120 A0 21D0 22D1 23D2

9A18

25D3 26D4 27D5 28D6 29D7

30CE

31 A10

32OE

1 A11

2 A93 A8

4 A135 A14

6 A17

7WE

24VSS

R51

20

R51

10

+3.3V/BATIN

+5VD

IC5034M DRAM

1VDD

2D0 3D1 4D2 5D3

6NC

7WE

8RAS

9DA9

10DA011DA112DA213DA3

14VDD

15GND

16DA417DA518DA619DA720DA8

21NC

22OE

23CAS

24D4 25D5 26D6 27D7

28GND

L5110

+5VA

DG

R60

1

10K

L512

CN502

1M3

2M2

3M1

4M0

5COM

RA

504

100

1 2 3 45678

RA

503

100

1 2 3 45678

RA

502

100

1 2 3 45678

RA

501

100

1 2 3 45678

+5VD

R538 100

R54

5 470

A19

+5VD

IC5151DIR2A13A24A35A46A57A68A79A810GND11 B8

12 B7

13 B6

14 B5

15 B4

16 B3

17 B2

18 B1

19 G

20 VCC

+3.3VD

C61

3

Z0.1

u

R53

610

K

R551 100

R549 100

R54

810

K

R55

010

K+3.3VD

R52

6

F1.1

K

R52

9

F36K

Q505

C60

9

Z0.1

u

+2.5V

+2.5V

R53

1

330K

R53

2

4.7M

Q506

+2.5V/BATIN

+5VD

(

)N

C

C60

4

J502

C50

4

Z0.1

u

C60

5

Z0.1

u

R539 100

R540 100

R541 100

R542 100

R543 100

C61

2

Z0.1

u

R51

010

0

R51

30

R51

50

C61

1

Z0.1

u

IC5161 DIR2 A13 A24 A35 A46 A57 A68 A79 A8

10 GND 11B8

12B7

13B6

14B5

15B4

16B3

17B2

18B1

19G

20VCC

(

)

NC

C50

5

R605

10K

R606

10K

R607

10K

R608

10K

R609

10K

R610

10K

R611

10K

R612

10K

D50

3

L522 0

+3.3VD

IC507

1 Vout2 VDD3 GND 4VDET

5CE

+5VD

R618

4.7K

R61

9

100KR620

2.2

R621

4.7

C61

8

K10

00P

C61

9Z0

.1u

C62

0Z0

.1u

C62

1Z0

.1u

+5VD+3.3VD

+3.3VD +3.3VA1

( )

NC

C62

3

+3.3VD

( )NC

R604

C62

9N

C

C63

0N

C

RA

505

100

1 2 3 45678

R62

510

0R

626

100

+3.3VD+3.3VD

C63

1

Z0.1

u

R63

010

0

ROMCS

L523 0

R634 100

+3.3VD

(

)

(

)N

CR

597

NC

R59

8

XTEST

RESET

+2_5V

+2_5VBAT

+3_3VBAT

TEST

C50

8

K0.0

33u

R527

4.7K

CN505

1COM(THON)

2COM(THON)

3GND(PG)

4GND(PG)

5+5v

6TM

7STB1

8STB2

9STB3

10THCLK

11THLAT

12THDAT

Q501

PG

CN507

1

2

R644 1KR64

5

4.7K

C51

2

K10

00p

+5VD

CN

50

4

1G

ND

2+

5V

3K

ST

AR

T

4K

LA

TC

H

5K

RX

D

6K

TX

D

7K

SC

LK

8R

ES

ET

(

)N

C

C60

3

R503 180

R504 180

R505 180

R506 180

R507 180

R508 180

R52

4

220

C51

1

K10

00p

R52

8

56K

R642

100K

R641

56K

R64

0

10K

R64

3

100K

R63

9

22K

Q517 Q516

PS5021

2

3

4

R53

0

5.6K

+5VD

+5VD

+5VD

RA509470

12345

678

RA510470

12345

678

C54

3Z0

.1u

Q504

CN508

1+5v

2TXD

3RXD

4RTS

5CTS

6DSR

7DTR

8GND

A

B

(

)

NC

J503

C52

6K

1000

p

RA507 (1)

(2)

(3)

10012345

678

RA508100

12345

678

R6134.7k

L531

0

L532

0

(

)N

C

C61

0

( )NCC517

(

)

NC

C52

9

( )

NC

C538

(

)N

C

C63

4

( )NC

C635

(

) NC

C62

8

L507

0

R59

9

4.7K

L521 0

C62

2

6.3V

220u

C54

2

0.1u

( )NC

C646

IC517

1 A2 B3 GND 4Y

5VCC

MT0

MT1

MT2

MT3

MTE

M[2]

M[1]

M[0]

M[0]

M[1]

M[2]

M[3]

MT2MT1

MT0

MTEMT3

KSCLK

OP

RE

SE

T

D[7]

D[5]

D[2]D[3]

D[6]

D[4]

KS

TA

RT

KLA

TC

H

KR

XD

KT

XD

THON

KS

CLK

SIG XF

TG

XF

1HS

TXM

UTE

FILM

END

SENL

ED

SPM

UTE

MPO

S

MDMCS

ON_MREN

SENLED

SPMUTE

CISON

CISLEDKSTARTKLATCH

KTXDKRXD

XTHDAT

XTHLATXTHCLK

LINERLY

A[0]A[1]A[2]A[3]A[4]A[5]A[6]A[7]A[8]A[9]

A[10]A[11]A[12]

RBA[0]RBA[1]RBA[2]RBA[3]RBA[4]

RBA[5]

D[1]D[0]

CISSEL

CIS

SE

L

CISS

EL

EXTHOOK

HSRXENOF_MRENMDMTXENTONE1EN

XSTB2XSTB1

A[4]A[5]A[6]A[7]

RBA[0]RBA[1]RBA[2]RBA[3]RBA[4]RBA[5]

MDM

RST

BELL

RB

A[4

]R

BA

[3]

RB

A[5

]

RB

A[2

]R

BA

[1]

RB

A[0

]A

[12]

A[1

1]A

[10]

A[9

]A

[8]

A[7

]

A[6

]A

[5]

A[4

]A

[3]

A[2

]A

[1]

A[0

]

THON

M[3]

ON_M

REN

CISL

ED

CISLED

XTHLAT

XTHCLK

XTHDAT

XSTB3

XSTB1

XSTB2

THLAT

THCLK

THDAT

STB3

DB[0]

DB[1]

DB[2]

DB[3]

DB[4]

DB[5]

DB[6]

DB[7]

DB[0]DB[1]DB[2]DB[3]DB[4]DB[5]DB[6]DB[7]

MPOS

XSTB3

STB1

STB2

STB3

THCLK

THLAT

THDAT

SENLED

PSHORTSTB1

STB2

FTG

F1 XFTG

XF1

FILMEND

PTOP

OPRESET

PTO

P

D[0]D[1]D[2]D[3]

D[4]D[5]D[6]D[7]

CIS

ON

CISO

N

TO THERMAL HEAD

TO OPERATION PANEL

MPOS SENSOR

TO MOTOR

XWDERR

TO FLASH PROGRAMER

TO POWER UNIT

(4)(5)(6)

(7)

(8)

(9)(10)(11)(12)

(13)(14)(15)(16)(17)(18)(19)(20)

(21)(22)

(23)

(24)(25)(26)(27)(28)

(29)(30)(31)(32)(33)

(34)

KX-FP302BX-W/KX-FP302CX-W/KX-FP303SA-W: DIGITALKX-FP302BX-W/KX-FP302CX-W/KX-FP303SA-W: DIGITAL

206


CLK ....

SI ....

FAX TX Signal

FAX RX Signal

2.1V

32.768KHz

+24V+5VD

R55

7

270

CN5031S

IG

2G

ND

3+

5V

4S

EL

5G

ND

6S

I

7G

ND

8C

LK

9G

.LED

10

V.LE

D

R56

2

PG

X502

24MHz

R553

1M

C54

0

J10P

R55

247

L506

C54

1J1

0P

R572

1.8M+24V

R592

330KC584

(

)

NC

C58

7

+12V

C576

K0.1u

C579

K0.1u

R58

9

220K

NC

C56

2

R581

10K

R59

0

220K

IC511-2

12

34

8

R584

3.9K

R587

47K

IC509

1

2

3

4

5

6

7 VSS 8

9

10

11

12

13

14VDD

Q509

R579

30K

+24V

+24VA

R566

1K

C58

2

Z0.1

u

R58

8

220K

+12V

R575

10K

Q510

C570

K0.027u

C572

K0.01u

C58

8

50V

10u

R58

6

15K

R585

C58

5

Z0.1

u

C571

K0.1u

IC511-15

67

+12V

R569

68K

+24VA

C586

K0.1u

+5VA

R568

10K

R580

150K

C560 Z0.1u

R59

1

10K

R593

56K

C580 KX-FP302BX-W...J39PKX-FP302CX-W...J39PKX-FP303SA-W...J68P

R59

547

K

R55

6

6.8

Q511

R60

0

47K

(

)

(

)

(

)

NC

R60

2

+5VDCIS

R60

3

390(

2W)

IC505MODEM

1SR

4IN/R

ESER

VED

2SR

3OUT

/RES

ERVE

D3

EYES

YNC

4EY

ECLK

5R

XD

6SR

1IO

7N

C8

EY

EX

Y9

SR

4O

UT

10V

DD

111

RL

SD

#12

DC

LK

13E

N8

5#

14G

PIO

15R

TS

#16

DG

ND

117

TX

D18

SA

1C

LK

19R

S4

20R

S3

21R

S2

22R

S1

23R

S0

24Y

CL

K25

IAC

LK

26IA

1C

LK

27C

TR

LS

IN_

S/N

C28

RE

SE

RV

ED

/NC

29S

OU

T_

S/N

C30

SIN

_S

/NC

31F

SY

NC

_S

/NC

32IA

RE

SE

T_

S#

/NC

33A

GN

D1

34LIN

EIN_

S/NC

35MI

CP_S

/NC

36MI

CM_S

/NC

37MI

CBIA

S_S/

NC38

NC

39NC40VREF_S/NC41VC_S/NC42VAA_S/NC43LINEOUT_S/NC44NC45AGND246SPKRP_S/NC47SPKRM_S/NC48AVDD_S/NC49RESERVED/NC50ICLK_S/NC51MCLK_P52CTRLSIN_P53RESERVED54SOUT_P55SIN_P56FSYNC_P57IARESET_P#58AGND359NC60LINEIN_P61MICP_P62MICM_P63MICBIAS_P64NC

65N

C66

VREF

_P67

VC_P

68VA

A_P

69LI

NEO

UT_

P70

AG

ND

471

SP

KR

P_

P72

SP

KR

M_

P73

AV

DD

_P

74N

C75

ICL

K_

P76

MC

LK

_S

/NC

77V

DD

278

D7

79D

680

D5

81D

482

D3

83D

284

DG

ND

285

VD

D3

86D

187

DG

ND

388

D0

89C

SB

R#

/RE

SE

RV

ED

90W

RIT

E#

91C

S#

92R

EAD

#93

GPI

294

GPI

395

GPI

496

GPI

597

GPI

698

GPI

799

GPO

710

0VD

D4

101

GPO

610

2G

PO5

103 RESERVED104 GPO4105 GPO3106 DGND4107 CTS#108 IRQ1#109 GPO2110111

GPO1GPO0

112 VDD5113 VGG114 DGND5115 RESET#116 XTALI117 XTALO118 RESERVED119 XCLK120 GPI1121 IRQ2#122 SR3IN123 RESERVED124 RESERVED125 DGND6126 DVAA127 AGND5128

RESE

RVED

RA

511

100

1 2 3 45678

RA

506

100

1 2 3 45678

R563 220

C59

8

J10P

C59

9

J10P

L514

X503

32.256MHz

R56

4

10K

C55

0

J33P

R56

1

4.7K

EY

ES

YN

CE

YE

CLK

EY

EX

Y

L515

C559Z0.1u

R55

8

2.7K

L516

L517

+5VA

L518 0

C53

5

Z0.1

u

C57

5Z0

.1u

C53

4

6.3V

100u

L519

L510

0

C53

9

J100

P

C58

3Z0

.1u

(

)N

C

C55

8

C57

8Z0

.1u

C56

9

Z0.1

u

C56

6

Z0.1

uC

564

16V

10u

C56

5

16V

10u

R596

10K

MFCS

Q508

R57

4

1.5K

R57

3

2.2K

R570

470K

C601

K0.1u

C600

J56P

C568

K1000P

R56

5

2.2K

R56

7

1K

C54

9K

0.1u

R576 10K C573 K0.1u

AG_M

L509

AG_MAG_M

AG_M

AG_M

AG_M

AG_M

XCLK

NC

C56

3

( )

NC

C57

4

C61

4

Z0.1

u

L520 0

+3.3VD

(

)

(

)

NC

C62

4

+5VA

R62

2

330

FTGVIDEO

C54

6

Z0.1

u

R62

9

100

C63

2

Z0.2

2

C633

J180P

R632220K

Q513R63

1

2.2K

+3.3VD

+5VA1

+5VA1 10kRA5138734 5

621

+5VA1

+5VDCIS

IC5191 CD2 FC23 FC14 VIN 5VO1

6VCC

7GND

8VD2

C63

9

50V

4.7

u

NC

C64

0(

)

NC

R65

2

R647 10KR648

12K

C641

K1000p

C642

K0.1u

( ) NC

C64

5

R64

9

10K

R65

0

150K

R65

1

110K

C64

3K

680p

C64

4

K68

0p

CN5101 SP(+)

2 SP(-)

R583

33K

C581

K0.022u

CN511

1 +24V

2 AG

3 +5V

4 LINERX

5 LINETX

6 HSTX

7 HSRX

8 ON-MREN

9 LINERLY

10 BELL

11 EXTHOOK

12 PSHORT

+5VD

R582 1K C577 K1000p

C567

K1000p

R571

1M

+5VD

R64

6

0

(

)

NC

R63

6

C62

5

6.3V

100u

C62

6

Z0.1

u

C55

3

K47

00p

C55

4

K47

00p

NC

C63

7N

CC

636

L534

L533 0

R577

0

(

)

NC

C56

1

C55

1

6.3V

100u

R635

10K

R55

5

22

R594

6.8K

Q512

Q507Q514

R6144.7K

R61

52.

2K

C547Z0.1u

C58

9

Z0.1

u

R653 220

R654 220

R655 220

R656 220

( ) ( )NC

J504

NC

J505

A[0

]A

[1]

A[2

]A

[3]

A[4

]

F1

EXTHOOK

MDMCS

D[7

]D

[6]

D[5

]D

[4]

D[3

]D

[2]

D[1

]D

[0]

TONE

2EN

HSRXENOF_MRENMDMTXENTONE1EN

FT

G

CIS

SE

L

HSRXEN

OF_MREN

TONE1EN

MDMTXEN

MDMCS

SPMUTE

TONE2EN

MDMRST

D[5]

D[4]D[2]D[3]

D[1]

D[7]D[6]D[0]

SIG

CIS

LED

HST

XMU

TE

CIS

ON

LINERLY

BELL

EXTHOOK

PSHORT

ON_MREN

TO CIS

TO ANALOG BOARD

TO SPEAKER

(1)

(2)

(3)

(4)(5)(6)

(7)

(8)

(9)(10)(11)(12)

(13)(14)(15)(16)(17)(18)(19)(20)

(21)(22)

(23)

(24)(25)(26)(27)(28)

(29)(30)(31)(32)(33)

(34)

KX-FP302BX-W/KX-FP302CX-W/KX-FP303SA-W :DIGITAL

KX-FP302BX-W...470KKX-FP302CX-W...470KKX-FP303SA-W...820K

KX-FP302BX-W...J180PKX-FP302CX-W...J180PKX-FP303SA-W...J82P

207


13.2

. A

NA

LOG

BO

AR

D(P

CB

2)

13.2

.1.

for

KX

-FP

302B

X-W

FA

X T

X S

igna

l

FA

X R

X S

igna

l

NC

...N

ot U

sed

5V 0VO

FF

-HO

OK

HA

ND

SE

TF

AX

TX

12V

1.9V

HA

ND

SE

T, M

ON

ITO

RF

AX

RX

L102

L103

SA101

300V

SA102

1000V

RLY

101-

1

3

54

+5V

A

+5V

A

Q10

2

R138

1.5K

R14

0 18K

C13

9K

0.1u

R13

918

K

RLY10121

C131

K0.01u

+24V

R136

1.5K

L104

L105

L107

L109

L108

L110

PO

S10

1

C10

8

250V

1.0u

R108

27K

R14

2

390K

C14

2

J220

P

R141

390K

+5V

A

R13

4

12K

C134

K0.0047u

Q10

3

C13

2

16V

10u

R120NC

R11

6

220K

C11

8

Z0.1

u

C11

6

J82P

D101

5.6V

D102

5.6V

T101

2 153

PC

101

1 234

D106

D105

C14

0K

0.1u

CN

104

1H

SMIC

(-)

3H

SSP(

+)

2H

SSP(

-)

4H

SMIC

(+)

+2.0

V

CN

102

4b

3a

CN

103

4a

1

3b

1

R101

12K

R102

6.8K

C102

6.3V47u

+2.0

V

R131

100

R132

47K

R133

330

R106

10K(1/2W)

R10

5

150(

2W)

+5V

A

R11

7

220K

C12

5

50V

10u

C11

4K

0.04

7u

R11

212

0K

R11

5 120K

C11

5K

0.01

2u

+24V

D103

+2.0

V

IC10

1-2

12 3

48

IC10

1-1

567

R10

7

47K

(1/2

W)

C122

K0.015uR123

33K

R118

2.2K

R143

2.2K

PC

102

2 134

L101

32

41

J101 NC

J102 NC

R10

4

270(

1/4W

)

C10

5

K0.

033u

R103

2.2K

( )NC

C106

( )NC

C107

Q10

1C

113

K0.

1u

R111

560KR119

330K

+5V

A

+5V

A

NC

C103

( )

( )

( )

NC

C101

NC

C104

+5V

A

J105

0

J104

0

C133

6.3V47u

C11

2K

0.01

2u

R11

418

K

+2.0

V

(

)N

C

C11

7

( )NC

R122

R124

91K

C124

K560P

( )NC

C141

K0.01u

C138

K0.01u

C137

K0.01u

C111

J103 NC

C15

5

NC

+5V

A

R15

3

NC

Q10

8NC

PC

104

NC

1 234

D10

8

NC

C15

1N

C

C154

NC

C15

2N

C

D10

7N

C

431 2

R156

NC

Q10

7N

C

R15

7

NC

R152

NC

R154

NC

+5V

A

R15

5

NC

R159

NC

C153

NC

R151

NC

R15

8

NC

PC

103

NC

1 234

ZNR101

NC

C123

NC

C120NC C121NC

R121

330(1/4W)

C119NC

Q10

4

NC

Q10

5

NC

R146

NC

R147

NC

R14

4

0

R145

NC

C14

3 0

R14

8

0R135

NC

C13

5 0

CN

10

11

+2

4

2A

G

3+

5V

4L

INE

RX

5L

INE

TX

6H

ST

X

7H

SR

X

8O

N-M

REN

9LI

NER

LY

10

BE

LL

11

EXH

OO

K

12

P-SH

OR

T

Q10

6

NC

C144NC

D11

0

NC

D11

1

NC

T102 NC

2 153

R125

0

J1060

J107

0

Q10

9

NC

R128

NC

R127

NC

R126

NC

R11

3 0R

129

0

+5V

A

C126

NC

C12

7

0

R137

330

C136

6.3V47u

R149

68

C12

8

NC

C129

NCR130

NC

L111

L112

J122

NC

TO

T

EL

LIN

E

TO

HA

ND

SE

T

TO

E

XT

.TE

L

TO

DIG

ITAL

BO

ARD

KX

-FP

302B

X-W

: A

NA

LOG


208

13.2

.2.

for

KX

-FP

302C

X-W

FA

X T

X S

igna

l

FA

X R

X S

igna

l

NC

...N

ot U

sed

5V 0VO

FF

-HO

OK

HA

ND

SE

TF

AX

TX

12V

1.9V

HA

ND

SE

T, M

ON

ITO

RF

AX

RX

L102

L103

SA101

310V

SA102

3000V

RLY

101-

1

3

54

+5V

A

+5V

A

Q10

2

R138

1.5K

R14

015

K

C13

9K

0.05

6u

RLY101

21

C131

K0.01u

+24V

R136

1.5K

L104

L105

L107

L109

L108

L110

PO

S10

1

0

C10

8

250V

1.0u

R108

8.2K

R14

2

680K

R141

680K

+5V

A

R13

4

47K

C134

K0.0047u

Q10

3

C13

2

16V

10u

R120NC

R11

6

220K

C11

8

Z0.1

u

C11

6

J82P

D101

5.6V

D102

5.6V

T101

2 153 P

C10

11 2

34

D106

D105

C14

0K

0.05

6u

CN

104

1H

SMIC

(-)

3H

SS

P(+

)

2H

SS

P(-

)

4H

SMIC

(+)

+2.0

V

CN

102

4b

3a

CN

103

4a

1

3b

1

R101

12K

R102

6.8K

C102

6.3V47u

+2.0

V

R131

100

R132

47KR133

330

R106

22K(1/2W)

R10

5

150(

2W)

+5V

A

R11

722

0K

C12

5

50V

10uC11

4K

0.22

u

R11

212

0K

R11

512

0KC

115

K0.

012u

+24V

D103

+2.0

V

IC10

1-2

12 3

48

IC10

1-1

567

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7

15K

(1/2

W)

C122

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R123

33K

R118

2.2K

R143

2.2K

PC

102

NC

2 134

L101

32

41

J101

NC

J102 N

C

R10

4

0

C10

5

NC

R103

2.2K

( )NC

C106

( )NC

C107

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1C

113

K0.

1u

R111

560KR119

330K

+5V

A

+5V

A

( )

NC

C103

( )NC

C101

( )NC

C104

+5V

A

J105

0

J104

0

C133

6.3V47u

C11

2K

0.01

2u

R11

44.

7K

+2.0

V

(

)

NC

C11

7

( )NC

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R124

82K

C124

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( )NC C141

K0.01u

C138

K0.01u

C137

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C111

J103

NC

C15

5

NC

+5V

A

R15

3

NC

Q10

8N

C

PC

104

NC

1 234

D10

8

NC

C15

1N

C

C154

NC

C15

2N

C

D10

7N

C

431 2

R156

NC

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C

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7

NC

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NC

R154

NC

+5V

A

R15

5

NC

R159

NC

C153

NC

R151

NC

R15

8

NC

PC

103

NC

1 234

ZNR101

120V

C123

NC

C120NC C121NC

R121330(1/4W)

C119NC

Q10

4

NC

Q10

5 NC

R146

NC

R147

NC

R14

4

0

R145

NC

C14

3

0

R14

8

0

R135

NCC

135

K0.

018

CN

10

11 2 3 4 5 6 7 8 9 10

11

12

Q10

6

NC

C144 NC

D11

0

5.6V

D11

1

5.6V

T102

NC

2 153

R125

39K

J1060

(

)

J107

NC

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9N

C

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NC

R127

NC

R126

NC

R11

3 0R

129

0

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A

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NC

C12

7

0

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330

C136

6.3V47u

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8

NC

C129NC

R130

NC

L111

L112

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NC

R13

915

K

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2

J120

p

TO

TE

L LI

NE

TO

HA

ND

SE

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TO

EX

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EL

TO

D

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AL

BO

AR

D

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4

AG

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V

LIN

ER

X

LIN

ET

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HS

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HS

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EN

LIN

ERLY

BE

LL

EXH

OO

K

P-SH

OR

T

KX

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302C

X-W

: A

NA

LOG


209

13.2

.3.

for

KX

-FP

303

SA

-W

FA

X T

X S

igna

l

FA

X R

X S

igna

l

NC

...N

ot U

sed

5V 0VO

FF

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OK

HA

ND

SE

TF

AX

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12V

1.9V

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ND

SE

T, M

ON

ITO

RF

AX

RX

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L103

SA101

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SA102

3000V

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101-

1 354

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A

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2

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06.

8K

C13

9 K0.

082

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96.

8K

RLY10121

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+24V

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1.5K

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L105 L1

07

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L108

L110P

OS

101 22

C10

8

250V

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268

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A

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4

12K

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3

C13

2

16V

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R1201K(1/4W)

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6

120K

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8

Z0.1

u

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6

J56p

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D102

5.6V

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NC

2 153

PC

101

1 234

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D105

CN

104

1H

SM

IC(-

)

3H

SS

P(+

)

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1

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1

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V

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100

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330

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712

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5

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u

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212

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512

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V

IC10

1-2 1

2 348

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101

567

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7

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(1/2

W)

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R118

2.2K

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2.2K

PC

102

2 134

L101

32

41

J101 NC

J102

NC

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4

270(

1/4W

)

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5

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033u

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( )NC

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A

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A

( )

NC

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( )NC

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( )NC

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A

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0

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0

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6.3V47u

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0.00

82u

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41.

5K

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V

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560

C124

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( )NC

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(

)

J103

NC

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5

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A

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3

5.6K

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8

PC

104

1 234

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8

0

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2

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7

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7

3.9K

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33(1/2W)

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A

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5

20K

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1K

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8

1.5K

PC

103

1 234

ZNR101

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( )C123

NC

C120K0.068( )

C121NC

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270(1/4W)

( )C119NC

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5

R146

27K

R147

39K

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3

K0.

1

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8

10K

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5

K0.

0068

CN

10

11 2 3 4 5 6 7 8 9 10

11

12

( )C144 NC

(

)

D11

0

NC

(

)

D11

1

NC

T102

2 153

R125

220

( )J106NC

J107

0

Q10

9N

C

( )( )R128

NC( )R127

NC( )R126

NC

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3 0R

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0

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NC C12

7

0

R137

330

C136

6.3V47u

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0

(

)C

128

NC

( )C129NC

( )R130

NC

L111

L112

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NC

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5

50V

1.0

u (N

)

C11

7J5

6p

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0K

0.08

2

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4

10K

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4

Q10

6

D10

7

431 2

R122

1K

TO

T

EL

LIN

E

TO

HA

ND

SE

T

TO

EX

T.T

EL

TO

D

IGIT

AL

BO

AR

D

+2

4

AG

+5

V

LIN

ER

X

LIN

ET

X

HS

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EN

LIN

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BE

LL

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P-SH

OR

T

KX

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303S

A-W

: A

NA

LOG


210

13.3

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PE

RA

TIO

N(P

CB

3)/

HO

OK

SW

(PC

B5)

BO

AR

D

5V 0V

LCD

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NT

RA

ST

DA

RK

ER

: 0V

NO

RM

AL:

5V

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NT

RA

ST

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3.3V

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ON

-HO

OK

: 5V

OF

F-H

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K: 0

V

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2.2K

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6.3V 100u

C314

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IC30

13

0R

ES

ET

31

SC

LK

32

RX

D3

3T

XD

34

LA

TC

H3

5S

TA

RT

42

KIN

03

KIN

17

KIN

28

KIN

31

1K

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12

KIN

51

3K

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14

KIN

74

3K

SL

04

1L

ED

5

38

LE

D4

37

LE

D3

36

LE

D2

29

D7

28

D6

27

D5

26

D4

25

E

24

R/W

23

RS

22

LE

D1

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6

40

VD

D

17

VD

D

44

KS

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1K

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26

XL

91

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SL

31

5X

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24

KS

L4

XL

11

16

9X

L1

01

9X

L1

31

8G

ND

20

XL

14

39

GN

D2

1X

L1

5

R32

1

100

C319

K0.01

R320

4.7K

SW

336 3

14

2

R31

5

100

C316

K0.01

R314

4.7K

+5V

C304

Z0.1u

C305

J100P

C302

Z0.1u

C308

J330P

C309

J330P

( )NC

R304

R318

4.7

+5V

+5V

+5V

+5V

CN

30

21

GN

D

2+

5V

LC

D

3V

O

4R

S

5R

/W

6E

7D

4

8D

5

9D

6

10

D7

R316

4.7K

C317

K0.01

SW

337

31

42

+5V

R31

7

100

SW

338 3

14

2

C318

K0.01

R322

4.7K

+5V

R31

9

100

SW

301

ST

AR

T

SW

302

ST

OP

SW

303

()

SW

304

()

SW

305

CO

PY

SW

306

()

SW

307

()

SW

308

FL

AS

H

SW

309

RE

DIA

L/P

AU

SE

SW

310

MU

TE

SW

311

AN

S

SW

312

MO

NIT

OR

SW

313

*

SW

314

0

SW

315

#

SW

316

ME

NU

SW

317

S4

SW

318

S7

SW

319

HE

LP

SW

320

LO

WE

R

SW

321

7

SW

322

8

SW

323

9

SW

324

C-I

D

SW

325

S3

SW

326

4

SW

327

5

SW

328

6

SW

329

S6

SW

330

S2

SW

331

1

SW

332

2

SW

333

3

SW

334

S5

SW

335

S1

R306

2.2K

R307

820

CN

30

1

1G

ND

2+

5V

3K

ST

AR

T

4K

LA

TC

H

5K

RX

D

6K

TX

D

7K

SC

LK

8R

ES

ET

SW

401

4 31 2

C320

NC

C321

NC

DO

CU

ME

NT

S

ET

SW

TO

DIG

ITA

L

TO

CO

B

TO

LC

D

DO

CU

ME

NT

T

OP

SW

CO

VE

R

SW

GN

D

HO

OK

TO

OP

E

TO

HO

OK

SW

HO

OK

SWH

OO

K

KX

-FP

302B

X-W

/KX

-FP

302C

X-W

/KX

-FP

303S

A-W

: OP

ER

AT

ION

/HO

OK

SW


211

13.4

. P

OW

ER

SU

PP

LYB

OA

RD

(PC

B4)

D10

2

C10

20.

1

D20

2IC

202

PC

101

R22

3

100

C20

5

1/(5

0V)

CN

301

1 2 3 4 5 6 7 8

24V

24V

24V

GN

D

GN

D

GN

D

5V GN

D

C20

2

D20

1

T10

1 TR

AN

S

1000

p/(1

KV

)G

D SQ

101

D10

8D

107

10K

R12

5

R10

8

15

C10

3

L101

R10

1

1M 1

/(2W

)

C10

1

0.22

GN

D

F101

T3.15A250V

CN

31L

N

C10

4

2200

p22

00p

C105

2200pC106

C107

47p

R106

R128

47/1

C201470/(35V)

C204

47/(35V)

C203

1000/(16V)

R121

10K

R222

2.2K

R221

2.2K

R224

5K

R225

IC20

1

3.3K

VR201

27K

R205

680/(2W)

PC101

56/(400V)

D10

1

TH

101

D10

9

R10

5

0.22

/(2W

)

R10

2

R12

3

R12

7C

124

1.8K

0.1

C12

1

R126

5.6K

C122

0.22

C123

680p

C109

47/(35V)

4700

p

R10

382

K82

K

R12

2R

133

R132

150K150K150K120K

R109D106

R107

68

10

R131R130R129

120K

200K/(2W)

R104

200K/(2W)

R110

C108

D10

5

L1031000p/(1KV)

150K

220

390

D10

3D

104

ZN

R10

1

750V

IC10

1

4 3 2 1

5 6 7 8

Cyc

le=

13su

12V

0V

Cyc

le=

13 s

u54

0V

0V

Cyc

le=

13 s

11V

19V

0V

m

Cyc

le=

13 s

25V

48V

0V

m

20V

36V

0V

KX

-FP

302B

X-W

/KX

-FP

302C

X-W

/KX

-FP

303S

A-W

: P

OW

ER

SU

PP

LY


212

213


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