CX-LDB75

SERVICE MANUAL

Sony CorporationPersonal Audio GroupPublished by Sony Engineering Corporation

AEP ModelE Model

COMPACT DISC DECK RECEIVER

9-879-582-012005C1678-1 2005.03

Ver. 1.0 2005.03

SPECIFICATIONS

CX-LDB75

CX-LDB75 is the Amplifier, CD player, TapeDeck and Tuner section in XR-DB75.

Continued on next page

Model Name Using Similar Mechanism NEWCD CD Mechanism Type CDM69CV-F4BD81B2Section Base Unit Name BU-F4BD81B2

Optical Pick-up Name KSM-215CFP/C2NPTAPE Model Name Using Similar Mechanism CX-LMN75Section Tape Transport Mechanism Type CMAL1Z250A

Amplifier section

European model:DIN power output (rated): 60 + 60 W

(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference):

80 + 80 W (6 ohms at 1 kHz, 10% THD)

Music power output (reference):140 + 140 W(6 ohms at 1 kHz, 10% THD)

Other models:The following measured at 220 240 V AC, 50/60 HzDIN power output (rated): 60 + 60 W

(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference):

80 + 80 W (6 ohms at 1 kHz, 10% THD)

InputsAUX IN (RCA pin jacks): Sensitivity 1 V,

impedance 47 kilohmsOutputsPHONES (stereo mini jack):

accepts headphones with an impedance of 32 ohms or more

SPEAKER: accepts impedance of 6 ohms

SUB WOOFER OUT: voltage 1.9 V

CD player sectionSystem Compact disc and digital

audio systemLaser Diode Properties Emission duration:

continuousLaser Output*: Less than 44.6 W

* This output is the value measurement at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture.

Frequency response 20 Hz 20 kHzSignal-to-noise ratio More than 90 dBDynamic range More than 90 dB

Tape deck sectionRecording system 4-track 2-channel stereoFrequency response 100 10,000 Hz, using

Sony TYPE I cassettes

Tuner sectionFM stereo, FM/AM superheterodyne tunerFM tuner sectionTuning range: 87.5 108.0 MHz

(50-kHz step)Antenna FM lead antennaAntenna terminals 75 ohms unbalancedIntermediate frequency 10.7 MHz

2CX-LDB75

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED BY SONY.

AM tuner sectionTuning rangeLatin-American model: 530 1,710 kHz

(with the tuning interval set at 10 kHz) 531 1,710 kHz (with the tuning interval set at 9 kHz)

European model: 531 1,602 kHz (with the tuning interval set at 9 kHz)

Other models: 530 1,710 kHz (with the tuning interval set at 10 kHz)531 1,602 kHz (with the tuning interval set at 9 kHz)

Antenna AM loop antenna, external antenna terminal

Intermediate frequency 450 kHz

GeneralPower requirementsEuropean model: 230 V AC, 50/60 HzOther models: 120 V, 220 V or

230 240 V AC, 50/60 HzAdjustable with voltage selector

Power consumptionEuropean model: 85 W

0.3 W (in Power Saving mode)

Other models: 85 WDimensions (w/h/d) incl. projecting parts and controls Amplifier/Tuner/Tape/CD section:

Approx. 190 277 361.4 mm

MassAmplifier/Tuner/Tape/CD section:

Approx. 6.4 kg

Design and specifications are subject to change without notice.

Standby power consumption: 0.3 W Halogenated flame retardants are not

used in the certain printed wiring boards. Lead-free solder is used for soldering

certain parts. Halogenated flame retardants are not

used in cabinets.

3CX-LDB75

TABLE OF CONTENTS

1. SERVICING NOTES ................................................ 4

2. GENERAL ................................................................... 5

3. DISASSEMBLY3-1. Disassembly Flow ........................................................... 73-2. Side Panel (L) (R), Top Panel, Back Panel ...................... 83-3. CD Mechanism Section ................................................... 83-4. Front Panel Section ......................................................... 93-5. FRONT Board ................................................................. 93-6. Cassette Deck Mechanism ............................................... 103-7. Cassette Panel .................................................................. 103-8. Power Transformer .......................................................... 113-9. MAIN Board Section ....................................................... 113-10. CD Mechanism Deck (CDM69CV-F4BD81B2) ............. 123-11. Optical Pick-up Section ................................................... 123-12. Base Unit (BU-F4BD81B2) ............................................ 133-13. BD Board, Optical Pick-up (KSM-215CFP/C2NP) ........ 133-14. SW Board, Bracket (Top) Assy ....................................... 143-15. CONNECTOR Board ...................................................... 143-16. Motor (Stocker) Assy (Stocker)(M761) .......................... 153-17. Motor (Roller) Assy (Roller)(M781) ............................... 153-18. Motor (Mode) Assy (Mode)(M771) ................................ 163-19. Rubber Roller (Slider) Assy ............................................ 163-20. Timing Belt (Front/Rear) ................................................. 173-21. Cam (Gear) ...................................................................... 173-22. SENSOR Board ............................................................... 18

4. ASSEMBLY4-1. How to Install the Cam (Eject Lock) ............................... 194-2. How to Install the Cam (Gear) ........................................ 194-3. How to Install the Gear (Mode C) ................................... 204-4. How to Install the Gear (Mode Cam) .............................. 204-5. How to Install the Rotary Encoder (S702),

Gear (Stocker Communication) ....................................... 214-6. How to Install the Stocker Assy ...................................... 21

5. TEST MODE ............................................................... 22

6. MECHANICAL ADJUSTMENTS ......................... 23

7. ELECTRICAL ADJUSTMENTS .......................... 23

8. DIAGRAMS ................................................................. 278-1. Block Diagram BD/Changer Section .................... 28

MAIN Section ....................................................... 298-2. Printed Wiring Board BD Section ......................... 308-3. Schematic Diagram BD Section ............................ 318-4. Printed Wiring Boards Changer Section ............... 328-5. Schematic Diagram Changer Section .................... 338-6. Printed Wiring Board FRONT Section .................. 348-7. Schematic Diagram FRONT Section .................... 358-8. Printed Wiring Boards MAIN Section .................. 368-9. Schematic Diagram MAIN Section 1 .................... 378-10. Schematic Diagram MAIN Section 2 .................... 388-11. Schematic Diagram MAIN Section 3 .................... 398-12. Schematic Diagram MAIN Section 4 .................... 408-13. Schematic Diagram MAIN Section 5 .................... 418-14. Schematic Diagram

MAIN Section 6/Power Section ............................ 428-15. Printed Wiring Board Power Section .................... 43

9. EXPLODED VIEWS9-1. Panel Section ................................................................... 499-2. Front Section ................................................................... 509-3. Chassis Section ................................................................ 519-4. CD Mechanism Deck Section 1

(CDM69CV-F4BD81B2) ................................................ 529-5. CD Mechanism Deck Section 2






(CDM69CV-F4BD81B2) ................................................ 589-11. Optical Pick-up Section ................................................... 59

10. ELECTRICAL PARTS LIST .................................. 60

4CX-LDB75SECTION 1

SERVICING NOTES

The laser diode in the optical pick-up block may suffer electrostaticbreak-down because of the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.

NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focused onthe disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission,observe from more than 30 cm away from the objective lens.

LASER DIODE AND FOCUS SEARCH OPERATIONCHECKCarry out the S curve check in CD section adjustment and checkthat the S curve waveforms is output three times.

NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNIT

Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be

damaged by heat.

Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C

during repairing. Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times). Be careful not to apply force on the conductor when soldering

or unsoldering.

CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous radiationexposure.

UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher

than ordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set toabout 350 C.Caution: The printed pattern (copper foil) may peel away if

the heated tip is applied for too long, so be careful! Strong viscosity

Unleaded solder is more viscou-s (sticky, less prone to flow)than ordinary solder so use caution not to let solder bridgesoccur such as on IC pins, etc.

Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.

Laser component in this product is capable of emitting radiationexceeding the limit for Class 1.

This appliance is classified as a CLASS 1 LASER product.The CLASS 1 LASER PRODUCT MARKING is located on theexterior.

5CX-LDB75SECTION 2GENERAL This section is extracted

from instruction manual.

Main unit

BASS control ql (19)CD SYNC 7 (17)DIRECTION qk (16, 17, 18, 21)DISC 1 5 qa (9, 10, 12, 17)Disc slot qs (9)DISPLAY ws (15, 22)Display window 6FUNCTION 5 (7, 9, 12, 13, 14,

16, 18, 25)i-Bass qf (19, 28)

PHONES jack waPLAY MODE qk (10, 12, 17)Remote sensor 8TREBLE control w; (19)TUNER BAND 4 (13, 14, 18)TUNING +/ qh (13, 14)TUNING MODE qk (13, 14)VOLUME control qg

?/1 (power) 1 (7, 14, 28)TAPE nN (play) 2 (16, 17,

21)CD NX (play pause) 3 (10)z REC PAUSE/START 9 (17)Z CD (eject) 0 (7, 9)Z PUSH qd (16)./> (go back/go forward) qh (10)

m/M (rewind/fast forward) qh (7, 10, 14, 16)

x (stop) qj (10, 14, 16, 17)

List of button locations and reference pages

How to use this pageUse this page to find the location of buttons and other parts of the system that are mentioned in the text.

Illustration numberr

DISPLAY ws (15, 22)R R

Name of button/part Reference page

ALPHABETICAL ORDER

A O P Z

BUTTON DESCRIPTIONS

1

0

qa

qf

qd

qg

qs

23456 89

qj

qh

ws

qk

wa

w;

7

ql

6CX-LDB75

Remote control

ALBUM + qa (10, 12, 17)ALBUM qd (10, 12, 17)CD qk (9, 12, 18)CLEAR qg (12)CLOCK/TIMER SELECT 2

(20, 21)CLOCK/TIMER SET 3 (8, 20,

21)DISC SKIP 0 (10, 12)DISPLAY wa (15, 22) ENTER 9 (8, 12, 13, 20, 21)EQ qf (19)

FM MODE 4 (15)FUNCTION 6 (9, 12, 13, 14, 16,

18, 25)PLAY MODE w; (10, 12)REPEAT 4 (11)SLEEP ws (19)TAPE qj (16, 18)TUNER BAND 5 (13, 14, 18)TUNER MEMORY ql (13)TUNING MODE w; (13, 14)VOLUME +/ qs (20)

?/1 (power) 1 (7, 14, 20)m/M (rewind/fast forward) 7 (10, 14, 16)

X (pause) 8 (10, 16)x (stop) 8 (10, 16, 17, 21)N (play) 8 (10, 16)/+(tuning) qh (13, 19)./> (go back/go forward) qh (8, 10, 20)

ALPHABETICAL ORDER

A E F Z

BUTTON DESCRIPTIONS

456

7

8

9

q;

ws 1

qd

qg

qf

waw;qlqkqj

qh

qa

qs

32

Use buttons on the remote for the operation.

1 Press ?/1 to turn on the system.2 Press CLOCK/TIMER SET.3 Press . or > repeatedly to set the

hour.

4 Press ENTER.5 Press . or > repeatedly to set the

minute.

6 Press ENTER.The clock starts working.

To adjust the clock

1 Press CLOCK/TIMER SET.2 Press . or > until CLOCK SET?

appears, then press ENTER.3 Do the same procedures as step 3 to 6

above.Notes

The clock settings are canceled when you disconnect the power cord or if a power failure occurs.You cannot set the clock in Power Saving Mode (page 22).

Setting the clock

7CX-LDB75SECTION 3

DISASSEMBLY

3-1. DISASSEMBLY FLOW

This set can be disassembled in the order shown below. The dotted square with arrow ( ) prompts you to move to the next job when all of the works within the dotted square ( ) are

completed.

3-10.CD MECHANISM DECK(CDM69CV-F4BD81B2)

(Page 12)

3-3.CD MECHANISM SECTION(Page 8)

3-4.FRONT PANEL SECTION(Page 9)

3-5.FRONT BOARD(Page 9)

3-6.CASSETTE DECK MECHANISM(Page 10)

3-9.MAIN BOARD SECTION(Page 11)

3-11.OPTICAL PICK-UP SECTION(Page 12)

3-8.POWER TRANSFORMER(Page 11)

3-7.CASSETTE PANEL(Page 10)

3-2.SIDE PANEL (L) (R), TOP PANEL, BACK PANEL

(Page 8)

3-19.RUBBER ROLLER (SLIDER) ASSY

(Page 16)

3-20.TIMING BELT (FRONT/REAR)

(Page 17)3-21.CAM (GEAR)

(Page 17)

3-22.SENSOR BOARD(Page 18)

3-14.SW BOARD, BRACKET (TOP) ASSY

(Page 14)

3-12.BASE UNIT (BU-F4BD81B2)

(Page 13)3-18.MOTOR (MODE)

ASSY (MODE) (M771)(Page 16)

3-17.MOTOR (ROLLER) ASSY (ROLLER) (M781)

(Page 15)

3-16.MOTOR (STOCKER) ASSY (STOCKER) (M761)

(Page 15)

3-15.CONNECTOR BOARD(Page 14)

SET

3-13.BD BOARD,OPTICAL PICK-UP (KSM-215CFP/C2NP)

(Page 13)

8CX-LDB75

Note: Follow the disassembly procedure in the numerical order given.

3-2. SIDE PANEL (L) (R), TOP PANEL, BACK PANEL

3-3. CD MECHANISM SECTION

qs connector2p(CN292)

1 four screws(+BVTP3 10)

4 six screws(+BVTP3 10)

qj nine screws(+BVTP3 10)

qd wire (flat type) 15core(CN602)

q; screw (+BVTP3 10)

3 side panel (L)

qa top panel

qk back panel

qf three screws(QT2+3 10)

7 screw(QT2+3 10)

8 screw(QT2+3 10)

qg screw(QT2+3 10)

9 screw(QT2+3 10)

qh screw(+BVTP3 10)

5 three claws

2 three claws

6 side panel (R)

6 CD mechanism section

2 wire (flat type) 27core (CN901)


3 screw(QT2+3 10)

4 screw(QT2+3 10)

5 claw

9CX-LDB75

3-4. FRONT PANEL SECTION

3-5. FRONT BOARD

4 connector(CN203)

3 connector(CN302)


9 front panel section

2 wire (flat type) 8core (cassette deck mechanism)

5 two screws(+BVTP3 6)

6 screw(QT2+3 10)

7 screw(QT2+3 10)

8 two claws

6 screw(+BVTP3 10)

7 wire

8 two claws

9 two claws

0 indicator (BASS), I-BASS sheet

5 thirteen screws(+BVTP3 10)

3 screw(+BVWHTP3 8)

2 knob (VOL)

1 two knobs (BT)

qs FRONT board

4 HP board

qa wire (flat type) 19core (CN905)

10

CX-LDB75

3-6. CASSETTE DECK MECHANISM

3-7. CASSETTE PANEL

4 cassette deck mechanism



3 shield (DECK)

4 cassette panel

3 four claws

2

1

11

CX-LDB75

3-8. POWER TRANSFORMER

3-9. MAIN BOARD SECTION

2 connector5p(CN257)


9 power transformer

3 cable tie

4 ferrite core

1 cable tie

8 three s-screws (+BV4 8R)

6 s-screw(+BV4 8R)

7 shield sheet


5 screw+BV3 (3-CR)

6 two screws+BV3 (3-CR)

2 screw+BV3 (3-CR)

4 holder (pwb.PT)

3 two claws

7 six screws(+BVTP3 10)

8 four s-screws(+BVTP3 10)

q; MAIN board

9 heat sink assy (MAIN)

12

CX-LDB75

3-10. CD MECHANISM DECK (CDM69CV-F4BD81B2)

3-11. OPTICAL PICK-UP SECTION

1 four screws (+BVTP3 10)

2 CD mechanism deck (CDM69CV-F4BD81B2)

4 boss

6 boss

3 boss

5 boss

1 floating screw (DIA. 12)

2 screw (+PTPWH) (M2) (DIA. 7)

7 optical pick-up section

13

CX-LDB75

3-12. BASE UNIT (BU-F4BD81B2)

1 tension spring (BU30-1)

qs base unit (BU-F4BD81B2)

8 vibration proof rubber

3 floating screw(+PTPWHM2.6 6)





q; vibration proof rubbers


qa wire (flat type) 19corre (CN202)

6

3-13. BD BOARD, OPTICAL PICK-UP (KSM-215CFP/C2NP)

1 Remove the solder (four portions).

3 BD board

4 optical pick-up (KSM-215CFP/C2NP)

2 wire (flat type) (16 core)

14

CX-LDB75

3-14. SW BOARD, BRACKET (TOP) ASSY

3-15. CONNECTOR BOARD

6 six screws (BVTP2.6 8)

5 SW board (4)

4 SW board (3)

3 SW board (2)

2 SW board (1)

7 bracket (top) assy

1 four screws (BTP2.6 6)

3

1 Remove five solders.

bottom view

CONNECTOR board

2 four screws (BVTP2.6 8)

4 connector(CN710)

5 connector(CN703)

6 CONNECTOR board

15

CX-LDB75

3-16. MOTOR (STOCKER) ASSY (STOCKER)(M761)

3-17. MOTOR (ROLLER) ASSY (ROLLER)(M781)

4

5 stocker motor board

3 two screws (BVTP2.6 8)

2 Remove two solders

6 motor (stocker) assy(stocker) (M761)

1 belt (stocker)

1 belt (roller V)

4 ROLLER MOTOR board

2 Remove two solders.

3 two screws

5 motor (roller) assy (roller)(M781)

16

CX-LDB75

3-18. MOTOR (MODE) ASSY (MODE)(M771)

3-19. RUBBER ROLLER (SLIDER) ASSY

1 Remove five soldersof rotary encoder.

2 Remove two soldersof motor (M771)

MODE MOTORboard


4 MODE MOTOR board

5 belt (mode V)

6 motor (mode) assy(mode) (M771)

qg sub chassis

qf screw(BVTP2.6 8)

8 step screw

qs step screw

5 step screw9 tension

spring(slider 2)

6 tension spring(base slider 4)

0 rubber roller(slider 4) assy


qa rubber roller(slider 2) assy

qd rubber roller(slider 1) assy

3 tension spring(base slider 5)

1 step screw


2 rubber roller(slider S) assy

bracket (top) assy

17

CX-LDB75

3-20. TIMING BELT (FRONT/REAR)

3-21. CAM (GEAR)

Note: Refer to assembly (Section 4)2 gear (mode cam)

: Note

1 screw(PTPWH2.6 8)

3 slider (mode cam) assy

5 two gears(center)

7 two gears (center)

8 timing belt (rear)

9 timing belt (rear)

4 gear(timing)

6 timing belt(front)

timing belt (rear)

When install three timing belts, its pass under each claws.

timing belt (rear)

timing belt (front)

claw

claw

claw

claw

qf cam (gear): Note

qs gear(mode cam)

0 gear (mode C):Note

4 gear (mode 5)

8 gear (mode D)

6 gear (mode 5)

1 screw(PTPWH2.6 8)

7 screw (PTPWH2.6 8)9 screw (PTPWH2.6 8)

qa screw (PTPWH2.6 8)

3 screw (PTPWH2.6 8)


2 pulley(mode deceleration)

qd screw

Note: Refer to assembly (Section 4).

18

CX-LDB75

3-22. SENSOR BOARD

ql harness

qd gear (eject lock)

q; cam (eject lock) : Note

qh two claws

qj rotary encoder (S771)

qf gear (mode B)

w; screw (BVTP2.6 8)

qg screw (PTPWH2.6 8)

wa SENSOR board8 shaft

(shutter)

7 compression spring (shutter)

qs cam (BU U/D)

qa screw (PTPWH2.6 8) 3 screw (BVTP2.6 8)



2 lever shutter (A)

5 base (shutter) block6 gear (mode A)


qk claw

Note: Refer to assembly (Section 4).

19

CX-LDB75SECTION 4ASSEMBLY

This set can be assembled in the order shown below.

4-1. HOW TO INSTALL THE CAM (EJECT LOCK)

4-2. HOW TO INSTALL THE CAM (GEAR)

mark

cam (BU U/D)

cam (eject lock)

bottom view front

gear (eject lock)

1 Rotate the cam (BU U/D) fully in the direction of arrow.2 Engage the gear (eject lock) and the gear of the cam (eject lock)

aligning the mark with the center of the gear (eject lock).

bosscam (gear)

mark

cam (BU U/D)

bottom view front

1 Check that the cam (BU U/D) can not be rotated in the direction of arrow.2 Align the mark on the cam (gear) with the boss as shown in the figure

and install the cam (gear).

20

CX-LDB75

4-3. HOW TO INSTALL THE GEAR (MODE C)

4-4. HOW TO INSTALL THE GEAR (MODE CAM)

1 Align the mark on the rotary encoder (S771) with the projection of the assy.2 Check that the cam (BU U/D) can not be rotated in the direction of arrow.3 Install the gear (mode C)

bottom view front

gear (mode C)

rotary encoder(S771) cam (BU U/D)

mark projection chassis

mark B

slider (mode cam) assy

shaft

mark A

mark D

gear (mode cam)

cam (gear)mark C

1 Slide the shaft in the direction of arrow.2 Align mark A on the gear (mode cam) with mark B on the slider (mode cam) assy,

then install the gear (mode cam).3 Check that mark C on the gear (mode cam) is in alignment with mark D on the cam (gear).

bottom view front

21

CX-LDB75

4-5. HOW TO INSTALL THE ROTARY ENCODER (S702), GEAR (STOCKER COMMUNICATION)

4-6. HOW TO INSTALL THE STOCKER ASSY

2 five solders

6 two gears(stocker communication)

4 gear(stocker communication)

CONNECTOR board

7 two screws (PTPWH2.6 8)


3 screw (PWH2 6)

rotary encoder(S702)

gear(stocker communication)

rear

1 rotary encoder(S702)

Engage the rotary encoder (S702)and the gear (stocker communication)as shown below in the figure.

2 cam (stocker V)


4 two cams (stocker U/D)

5 two screws (PTPWH2.6 8)

boss

boss

rotary encoder(S702)

Install the stocker assy fitting three bosses into the each groove of cam then fix by rotating the cams in the direction of arrow.

hole

gear(stocker communication)

rear

screw

1 Position the hole on the gear (stocker communication) on thescrew of the rotary encoder (S702).

To install three cams, align each grooveof the cam with each f mark on the chassis as shown in the figure.

cam

22

CX-LDB75SECTION 5TEST MODE

[Cold Reset]* The cold reset clears all data including preset data stored in

the RAM to initial conditions. Execute this mode whenreturning the set to the customer.

Procedure:1. Press the ?/1 button to turn off the main power.2. While depressing the i-Bass button, press the ?/1 button.3. The fluorescent indicator tube does not display any message

and the set is reset.

[Version Display Mode]* The version of the microcomputer is displayed.

Procedure:1. Press the ?/1 button to turn the set on.2. To enter the test mode, press three buttons FUNCTION ,

DISPLAY and i-Bass simultaneously. The version of themicrocomputer is displayed.

[LCD Check]* All fluorecent segments are tested.

Procedure:1. Press the ?/1 button to the set on.2. While depressing the FUNCTION button, Press the

DISPLAY button.3. The message CD TEST is displayed, the initialization is

performed.Then all segments of the fluorecent indicator tube are turned on.

[CD Ship Mode]* This mode moves the optical pick-up to the position durable

to vibration. Use this mode when returning the set to thecustomer after repair.

Procedure:1. Press the ?/1 button to turn the set on.2. Set the FUNCTION to CD.3. Press two buttons of Z CD and > simultaneously for

more than two seconds.4. After a message MECHA LOCK is displayed on the

fluorescent indicator tube, the CD ship mode is set and thepower is turned off.

[Disc Tray Lock]The disc tray lock function for the antitheft of an demonstrationdisc in the store is equipped.Setting Procedure :

1. Press the ?/1 button to turn the set on.2. Press two buttons of x and Z CD simultaneously for five

seconds.3. The message LOCKED is displayed and the tray is locked.

Releasing Procedure :1. Press two buttons of x and Z CD simultaneously for five

seconds again.2. The message UNLOCKED is displayed and the tray is

unlocked.Note : When LOCKED is displayed, the tray lock is not released

by turning power on/off with the ?/1 button.

[AMP Test]* This mode is used to check the function of the amplifier.

Procedure:1. Press the ?/1 button to turn the set on.2. While depressing the x button, Press the DISPLAY button.3. The message Volume MAX is displayed, when the

VOLUME knob is rotated clockwise. The message VolumeMIN is displayed, when the VOLUME knob is rotatedcounterclockwise.

4. Each time the BASS or TREBLE knob is turned, the messageEQ MAX, EQ MIN or EQ FLAT is displayed in thisorder.

[AM Channel Step 9 kHz/10kHz Selection Mode]* Either the 9 kHz step or 10 kHz step can be selected for the

AM channel step. (EXCEPT AEP)Procedure:

1. Set the FUNCTION to AM.2. While depressing the > button, press the ?/1 button.3. The channel step is changed over.

[CD Test Mode]* This mode can run the CD sled motor freely. Use this mode,

for instance, when cleaning the pickup.Procedure:

1. Press the ?/1 button to turn the set on.2. While depressing the CD u button, Press the DIRECTION

button. The message CD TEST is displayed.3. With the CD in stop status, press the > button to move the

pickup to outside track, or press the . button to insidetrack.

4. When press the CD u button, normal playback is performed.5. Each time the CD u button is pressed during normal

playback, the tracking servo is switched on or off.6. To exit this mode, either change to other functions or extract

an AC plug.

[CD Repeat 5 Times Limit Release Mode]Procedure:

1. Press the ?/1 button to turn the set on.2. Select the FUNCTION to CD.3. Press two buttons of > and DIRECTION simultaneously.4. The repeat all mark blinks and then repeat 5 times limit is

released.

23

CX-LDB75

2.94 7.84 mN m(30 to 79 g cm)

(0.42 1.11 oz inch)0.15 0.59 mN m

(2 to 6 g cm)(0.03 0.08 oz inch)

2.94 7.84 mN m(30 to 79 g cm)

(0.42 1.11 oz inch)0.15 0.59 mN m

(2 to 6 g cm)(0.03 0.08 oz inch)6.86 17.64 mN m

(70 to 179 g cm)(0.98 2.49 oz inch)0.98 mN m or more

(10 cm or more)(0.14 oz inch or more)

0.98 mN m or more(10 cm or more)

(0.14 oz inch or more)

CQ-102C

CQ-102C

CQ-102RC

CQ-102RC

CQ-201B

CQ-403A

CQ-403R

TAPE MECHANISM DECK SECTIONPrecaution

1. Clean the following parts with a denatured alcohol-moistenedswab:

record/playback heads pinch rollerserase head rubber beltscapstan idlers

2. Demagnetize the record/playback head with a head demag-netizer.

3. Do not use a magnetized screwdriver for the adjustments.4. After the adjustments, apply suitable locking compound to

the parts adjusted.5. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.

Torque MeasurementMode

FWD

FWDback tension

REV

REVback tension

FF/REW

FWD tension

REV tension

Torque meter Meter reading

Record/Playback Head Azimuth AdjustmentProcedure:

1. Mode : Playback

2. Turn the adjustment screw and check output peaks. If the peaksdo not match for L-CH and R-CH, turn the adjustment screwso that outputs match within 1 dB of peak.

DECK SECTION 0 dB=0.775V

Precaution1. Demagnetize the record/playback head with a head

demagnetizer.2. Do not use a magnetized screwdriver for the adjustments.3. After the adjustments, apply suitable locking compound to

the parts adjusted.4. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.5. The adjustments should be performed in the order given in

this service manual. (As a general rule, playback circuitadjustment should be completed before performing recordingcircuit adjustment.)

6. The adjustments should be performed for both L-CH and R-CH.

7. Switches and controls should be set as follows unless otherwisespecified.

Test TapeSignal Used forTape

P-4-A100WS-48B

10 kHz, 10 dB3 kHz, 0 dB

Azimuth AdjustmentTape Speed Check

SECTION 6MECHANICAL ADJUSTMENTS

SECTION 7ELECTRICAL ADJUSTMENTS

set

MAIN boardSPEAKER terminal (J201)L-CH, R-CH

+

level meter

test tapeP-4-A100(10 kHz, 10 dB)

Screwposition

L-CHpeak

within1dB

Outputlevel

L-CHpeak

R-CHpeak

within1dB

Screwposition

R-CHpeak

24

CX-LDB75

4. After the adjustments, apply suitable locking compound tothe parts adjusted.

Adjustment Location: Record/Playback/Erase Head

3. Mode: Playback

set

test tapeP-4-A100(10 kHz, 10 dB)

R-CH

oscilloscopeL-CH

R-CH

V H

waveform of oscilloscope

in phase 45 90 135 180good wrong

MAIN boardSPEAKER terminal (J201)L-CH

Tape Speed CheckMode: Playback

Note: Refer to 3-7. Cassette Panel (see page 10)

adjustment screw

1. Insert the WS-48B into deck.2. Press the TAPE nN button of deck.3. Confirm that the frequency counter reads 3000 90 Hz.

Sample Value of Wow and flutter: 0.3% or less W.RMS (JIS)(WS-48B)

+

set

test tapeWS-48B (3 kHz, 0 dB)

MAIN boardSPEAKER terminal (J201)L-CH, R-CH

frequency counter

Record Bias AdjustmentProcedure:

1. Record mode

2. Mode: Playbacki-Bass OFFBASS 0TREBLE 0

3. Confirm playback the signal recorded in step 1 becomeadjustment level as follows.

Adjustment level: Playback output of 315 Hz to playback outputof 10 kHz: 0 1.0 dB (0 4.5mV).

attenuator

set

MAIN boardAUX IN (J602)1) 315 Hz2) 10 kHz 50 mV (23.8 dB)

600 blank tapeCN-123

AF OSC

+

set

recordedportion

MAIN board speaker terminal (J201)

level meter

25

CX-LDB75

CD SECTION

Note:1. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.2. Use an oscilloscope with more than 10M impedance.3. Clean the object lens by an applicator with neutral detergent

when the signal level is low than specified value with thefollowing checks.

S-curve CheckConnection:

Procedure:1. Connect an oscilloscope to test point TP (FEO) and TP (VC)

on the BD board.2. While depressing the CD u button, insert an AC plug.3. Put the disc (YEDS-18) in and press the x button and actuate

the focus search. (actuate the focus search when disc table ismoving in and out)

4. Check the oscilloscope waveform (S-curve) is symmetricalbetween A and B. And confirm peak to peak level within 2 1Vp-p.

Note: Try to measure several times to make sure than the ratio of A : Bor B : A is more than 10 : 7.

Take sweep time as long as possible and light up thebrightness to obtain best waveform.

Checking Location: BD board (Conductor Side)(See page 26)

RFDC Level CheckConnection:

Procedure:1. Connect an oscilloscope to test point (RFDCO) and TP (VC)

on the BD board.2. Turn the power on.3. Put the disc (YEDS-18) in to playback the number five track.4. Confirm that oscilloscope waveform is clear and check RFDC

signal level is correct or not.Note: A clear RFDC signal waveform means that the shape can

be clearly distinguished at the center of the waveform.


RFAC Level CheckConnection:

Procedure:1. Connect an oscilloscope to test point TP (RFACO) and TP

(VC) on the BD board.2. Turn the power on.3. Put the disc (YEDS-18) in to playback the number five track.4. Confirm that oscilloscope waveform is clear and check RFAC

signal level is correct or not.Note: A clear RFAC signal waveform means that the shape can

be clearly distinguished at the center of the waveform.


+

BD board

oscilloscope

TP (FED)TP (VC)

S-curve waveformsymmetry

A

Bwithin 2 1 Vp-p

+

BD board

oscilloscope

TP (RFDCO)TP (VC)

RFDC signal waveformVOLT/DIV: 200 mVTIME/DIV: 500 ns

level: 0.6 0.15 Vp-p

+

BD board

oscilloscope

TP (RFACO)TP (VC)

RFAC signal waveformVOLT/DIV: 200 mVTIME/DIV: 500 ns

level: 1.0 0.4 Vp-p

26

CX-LDB75

E-F Balance AdjustmentConnection:

Procedure:1. Connect an oscilloscpe to test point TP (TEO) and TP (VC)

on the BD board.2. AC is put in pushing CD u button to enter the CD test

mode.3. Put the disc (YEDS-18) in to playback the number five track.4. Press the CD u button. If it plays, press the CD u button

again. (The tracking servo and the sledding servo are turnedOFF)

5. Check the level B of the oscilliscopes waveform and the A(DC voltage) of the center of the Traverse waveform.Confirm the following :A/B x 100 = less than 10%

6. Press the CD u button. (The tracking servo and sleddingservo are turned ON)Rotate RV101 on BD board and adjust the C (DC voltage) isalmost equal to the A (DC voltage) in step 4.

7. To exit from this mode, turn the power off.Notes: Always move the optical pick-up to most inside track when exiting

from this mode. Otherwise, a disc will not be unloaded. Do not run the sled motor excessively, otherwise the gear can be

chipped.

Checking Location: BD board (Conductor Side)

Checking Location:

BD BOARD (Conductor Side)

+

BD board

oscilloscope

TP (TEO)TP (VC)

Traverse Waveform

0V

Center of the waveform

BA (DC voltage)

level: 1.0 0.5 Vp-p

Traverse Waveform

0V

Tracking servoSled servo

OFF

Tracking servoSled servo

ON

C (DC voltage)

(CONDUCTOR SIDE)BD BOARD

IC251

IC301

IC101

IC303

TP(RFACO)

TP(VC)

TP(FEO)

TP(RFDCO)

TP(TEO)

2727

CX-LDB75

CX-LDB75

Circuit Boards Location

SECTION 8DIAGRAMS

For Schematic Diagrams.Note: All capacitors are in F unless otherwise noted. (p: pF)

50 WV or less are not indicated except for electrolytics andtantalums.

All resistors are in and 1/4

W or less unless otherwisespecified.

* : Impossible to measure f : internal component. 2 : nonflammable resistor. 1 : fusible resistor. C : panel designation.

A : B+ Line. B : B Line. Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.No mark: Power on

Voltages are taken with a VOM (Input impedance 10 M).Voltage variations may be noted due to normal productiontolerances.

Waveforms are taken with a oscilloscope.Voltage variations may be noted due to normal productiontolerances.

Circled numbers refer to waveforms. Signal path.F : TUNERJ : CDd : AUXE : PB (TAPE)a : REC (TAPE)

AbbreviationE51 : Chilean and Peruvian model.

For Printed Wiring Boards.Note: X : parts extracted from the component side. Y : parts extracted from the conductor side. f : internal component. : Pattern from the side which enables seeing.

Indication of transistor.

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.(In addition to this, the necessary note is printed in each block.)

Note: The components identified by mark 0 or dottedline with mark 0 are critical for safety.Replace only with part number specified.

Caution:Pattern face side: Parts on the pattern face side seen from(Conductor Side) the pattern face are indicated.Parts face side: Parts on the parts face side seen from(Component Side) the parts face are indicated.

C

BThese are omitted.

EQ

B

These are omitted.C E

B

These are omitted. C E

Q

Waveforms BD Board

1 IC101 ra (RFACO)

1.2 Vp-p

200 mV/DIV, 1 s/DIV

2 IC101 uj (XTAO)

59.1 ns (16.9 MHz)3.3 Vp-p

1 V/DIV, 40 ns/DIV

3 IC901 qd (16MHz-OUT)

1 V/DIV, 40 ns/DIV

4 IC901 qa (32kHz-OUT)

30.5 s (32.768 kHz)1.9 Vp-p

1 V/DIV, 20 s/DIV

62.7 ns (16 MHz)1.9 Vp-p

MAIN Board

MODE MOTOR board

ROLLER MOTOR board

STOCKER MOTOR board

SW (1) board

CONNECTOR board

ST ENCODER board

PT board

MAIN board

FRONT board

HOLDER board

HP board

BD board

SW (2) board

SW (3) board SW (4) board

SENSOR board

2828

CX-LDB75

CX-LDB75

8-1. BLOCK DIAGRAM BD/CHANGER SECTION

MIACK8PO11/BUCK/AD1436

MILP5

RESET2

MICS4

MIDIO6MICK7

MP3 DECODERIC301

A/DCONVERTER

CH2OUTF

CH2OUTR

23

24

21

4

5

6

7

17

18

16

15

RFACI

ASYO

ASYI

FILTER

FILO PC

OCL

TV FILI

DIGITAL PLLASYMMETRYCORRECTOR

EFMDEMODULATOR

CD DSPIC101 (1/2)

MDP

DIGITALCLV

PROCESSOR

32KRAM

ERRORCORRECTOR

INTE

RNAL

BUS

SQCK

SQSO

EXCK

AOUT1

C4M XTSL

XTAO

XTAI

AOUT2R-CHD/A

DIGITALINTERFACE

D/ACONVERTER

SELECTOR

CLOCKGENERATOR

SUBCODEPROCESSOR

SCOR

WFC

KXU

GFGF

SEM

PH

SENS

DATA

CLOC

KXL

AT

SBSO

O-SE

NS

I-DAT

A

I-XLT

TEI

FEI

FOCUS/TRACKING/SLED

SERVO DSP

FOCU

S/TR

ACKI

NG/S

LED

PWM

GEN

ERAT

OR

SFDR

CH3FIN

CH4IN

CH3RIN

CH3OUTF

CH3OUTR

CH1FIN

CH1RIN

CH2FIN

CH2RIN

20

MUTE

SRDR

TFDR

TRDR

FFDR

FRDR

SSTP

COUT

MIRR,DFCT, FOKDETECTOR

SERVO AUTOSEQUENCER

SERVOINTERFACE

CPU INTERFACE

SCLK

TO CPU INTERFACE

FOKMIRRDFCT

2OPIN+

CH4OUTF

CH4OUTR 27OPOUTM101

(SPINDLE)MOTORDRIVE

MOTORDRIVE

COILDRIVE

CH1OUTF

CH1OUTR

COILDRIVE

M

M

M102(SLED)

MOTOR/COIL DRIVEIC251

2-AXISDEVICE

(TRA

CKIN

G)(F

OCUS

)

CD DSPIC101 (2/2)

Signal Path

: CD

14

13

11

12

O-SC

OR

A MAINSECTIONCD

13

11

12

9

10

14

119

108

21 23

312

7

TO SERVO AUTOSEQUENCER

42

51 53

XPCK

11250 52

45

46

6

XRST

100

O-X-RST60

96 97

81

78

117 93

77

86

98 99115107102 105104 110111113 68

35

I-CLK

37 36

LRCK

BCK

PCM

D

LRCK

IA

SDI0

63 66 65

16

BCKI

A

15

SFSY

/LRC

KIB

19

SBSY

/BCK

IB

18 14

LRCK

IBC

KIPC

MDI

SDO0

62 60 61

1156 19

26

27

28

29

24

22

20

19

3736

E

B

A

D +3.3V

F

DETECTOR

A

B

C

D

RFSUMMING

AMP

FOCUSERROR

AMP

TRACKINGERROR AMP

RFACO

FEO

TEOE

F

AUTOMATICPOWER

CONTROLQ10

APC LDAMP

LD

LDPD

LASER DIODE

OPTICAL PICK-UPBLOCK

(KSM-215CFP)

PD

I-V A

MP

D

C

EQ_IN

413534 EQ

AC_SUM RFAC

VCA

X17116.9344MHz

SYSTEM CONTROLLERIC901 (1/2)

S101(LIMIT)

I-MP3DAT 6O-MP3DAT 5O-MP3CLK 7

I-MI-CS 47

I-MP3-ACK 32I-MP3-REQ 33

O-MILT 48

MP3-RST 45

I-XTACN 57

STANDBY3I-MP3-STBY 49

R-ch is omitted due to same as L-ch.

XTACN95

VDDT

42

VDDT

9

VDDX 57VDDX 40

VDD 21VDDP 1

51

71O-LOD_NEG

O-LOD_POS

O-SLD_POS

O-SLD_NEG

72

I-D. SENSOR

I-SW5-B

I-SW5-A

I-SW4

I-SW3

I-SW2-A

I-SW2-B

I-SW1-A

70O-ELV_POS

O-ELV_NEG

69

84

85

67

OUT1FIN

OUT2RIN

IC721 STOCKER MOTOR DRIVE

M761(STOCKER)

M79

4

282

83

OUT1FIN

OUT2RIN

IC711 ROLLER MOTOR DRIVE

M781(ROLLER)

M79

4

2

7381

OUT1FIN

OUT2RIN

IC701 MODE MOTOR DRIVE

S771 ROTARY ENCODER (MODE)

M771(MODE)

M79

4

2

S713 (DISC IN (8/12cm))

S714 (DISC IN (8cm))

S715 (DISC OUT)

S716 (STOCKER IN/OUT)

S711 (DISC INSERT(8/12cm))

S717 (DISC POSITION)

S718 (STOCKING)

1

G2

3

4

61

86

59

63I-ELV_3I-ELV_2

I-ELV_1I-ELV_0

I-SLD_3I-SLD_2

I-SLD_1I-SLD_0

S702 ROTARY ENCODER (STOCKER POSITION)

1

2

3

4

79

75

76

77

68

80

78

(ON : When disc insert)S711

S713

S714

S715

S717

S718

(ON : When disc out from play position)

In the midst disc is moving between play position and stockerON : disc is play position sideOFF : disc is stocker side

OFF: In the Midst disc is movingbetween play position and stocker

(ON : Play position)

(8cm disc only)ON : Play position

S716 from stockerON : The moment disc in/out

LEVELSHIFT

Q731DISC INSERT

DETECT SENSOR

IC751

G

IC303+1.5V REG

MP33.3V

2929

CX-LDB75

CX-LDB75

MAIN SECTION

: TUNER

: CD

Signal Path

R-CH is omitted due to same as L-CH.

: AUX

: PB (TAPE)

: REC (TAPE)

BIASOSC

VDD

ERASEHEAD

REC/PBHEAD

DECK BLOCK

27

22

SYSTEM CONTROLLERIC901 (2/2)

25

L

RAUX IN

J202HEADPHONES

R CH

L

R

FUCTIONKEY

S924-931,942

TUNER PACK

L-CH

L-CH

R-CH

R-CH R-CH

D OUT

D IN

CLK

CE

TUNED

R-CH

26

REC/PBSWITCH

Q305,307,309

L451BIAS OSC

Q601

T SOLDRIVE

Q903,905

MOTORDRIVE

Q902,904

43

89

23

FUCTIONKEY

S932-941

95

VOLENCODER

S921

92

100

D251-254

RELAYDRIVE

ACIN

PT251POWER TRANSFORMER

(SUB)

Q008

RY251

97

+9V

FUNCTIONIC601

33 28

35

2

31

27 R-CH

7

24STEREO

TUMUT 21

R-CH

R OUT R-CH

L OUT

51

54

94

53

R-CH

J201SPEAKER

FLDISPLAY

FL901

POWERCONTROL

Q021

+Vcc

IC001

13

ACDET

Q063,064

S250

120V

230-240V

220V

D00965

MECHA BLOCK

PLAY

R REC

F REC

PACK

END

DECKMOTOR

J602(1/2)

SFR451

Q453,454

BIASSWITCH

Q451,452

VM

44

M

40

18

50 198

6

9

BOOSTCONT

Q501,503,505,507

BASSSWITCH

Q508-51041

42

MUTECONT

Q235

Q607

55

39

88

87

I-BASSIC501

MUTE

Q101 Q117,119Q103,105,107,109

Q111,113,127

PREAMP

POWERAMP

DCDET

THERMALDET

Q123

Q280,281

TH101

OVER LOADDET

Q250,251

SUBWOOFER

J602(2/2)

FANDRIVE

Q291-293

VM

2

40

46

FR VDD

+VM

BASSENCODER

S922

91

TREBLEENCODER

S923

90

D901STAND BY

LEDDRIVE

DRIVE

Q994

3D902i-BASS

10

11

X90132.768kHz

15

13

X90216MHz

+VPVPSWITCH

Q201

DCDET

Q203,205

-VPSWITCH

Q202,204,206

-VL

+VL

120V

120V

110V

0V

0V



12

16

6

65

2

2

3

4

7

7

13

15

12

16

13

15

RY252

D001

D002

VMREG

Q006,011Q012,015

VCCREG

Q009,010

VDDREG

Q018,019

3.3VREG

Q020

012D010-

+VH

-VH

+VL

-VL

VM

VCC

CD 7V

FR VDD

D VDD(3.3V)

A VDD(3.3V)

D022D026

OVER CURRDET

Q060-062

D027

D029

D036

D031

D038

D037

RESET

Q065

-VP

38

IC902

4 23

RESETSWITCH

SWITCHQ901

Q906

12

IC904

13

20

V STBY

D906

D703

CON +BD905

IC902

14

CD SECTION

O-CD ON

O POWER

I-RMC

RESET

AC-CUT

O-PLLCLK

O-PLLCE

I-PLLDATA

I-TUNE

O-PB2

I-HALF SW

O-PLLDATA

I-KEY1

I-ENC0

O-ST LED

I-KEY0

I-STEREO

O-TUMUT

I-PLAY SW

O-MOTOR

I-END SW

O-SOL

O-BIAS

FUNC CLK

BASS0

BASS1

O-MUTE

I-PROTECT

I-LEVEL-L

I-LEVEL-R

LED

Q995

O-LCD SCK

1O-LCDAT

O-LCD-RS

O-LCD CD

52O-LCDCS

I-ENC1

I-ENC2

BASS-LED

LEDDRIVE

Q996

28O-BKLIGHT

32kHz-IN

32kHz-OUT

16MHz-IN

16MHz-OUT

AUX-L OUT-L

TUNER-L

PBP-L

CD L

OUT-R

PBOR

PBOL

RECOUT-L

SI

SC

VOL INR

VOL IN L

3

1

IN L

OUT L

VOLTAGESELECTOR

7VREG

REMOTECONTROLRECEIVER

RESET

VDDREG

AEP

AEP

E51

E51

A

SWITCH

SWITCHQ608

D905-907(BACK LIGHT)

D028

D023

3030

CX-LDB75

CX-LDB75

8-2. PRINTED WIRING BOARD BD SECTION See page 27 for Circuit Boards Location. :Uses unleaded solder.

SemiconductorLocation

Ref. No. LocationIC101 C-6IC251 B-4IC301 B-6IC303 B-6

Q10 D-3

C10

C260

C14

C15

C16

C18

C11

R405

C316

R354 R353

R352

R351

R302

R253

C315

R191

R172

R171

R162

R313

X171

R121

R12

R11

R10Q10

C116

C312

C184

C183

C303

C302

C305

C259C258

C257

C255

C203

C196

C195

C201

C182

C171

C172

C308

C151

C134

C125

C123

R165

R13

C17

FB30

1

C318

R201

C174R173

R205

C209

C210

C314

M102

S101

M101

IC251

IC101

CN101

CN201

R419

R412

R411

R410

R409

R408

R407

R406

R404

R403

R402

R401

R305

R303

R301

R252

R251

R182

R181

R163

R151

R143

R142

R141

R133

R132

R131R1

14R1

13

R112

R111

R307C311

C310

C309

C307

C306

C252

C251

C194

C181

C320

C163

C162

C143

C142

C141

C133 C132

C131

C124

C111

C122

C115

C114

C113

C112

C185

C186

R306

IC303

C317

R203

C161

C211

C212

R204

C213

IC301

C313

C401

M

E

(COMPONENT SIDE)BD BOARD

1-861-619-

12

(12)

30

31 60

120 91

1

61

90

(CONDUCTOR SIDE)BD BOARD

1-861-619-

12

(12)

(SPINDLE)

M (SLED)

13

54

116

17

32

64

49

4833

(LIMIT)

1

27

CMAIN

BOARDCN902

(Page 36)

TP(RFACO)

OPTICALPICK-UPBLOCK

(KSM-215CFP)

TP(VC)

TP(FEO)

TP(RFDCO)

TP(TEO)

1 7 148

28 22 1521

1 2

A

B

C

D

E

3 4 5 6 7

3131

CX-LDB75

CX-LDB75

8-3. SCHEMATIC DIAGRAM BD SECTION See page 44 for IC Block Diagrams. See page 27 for Waveforms.

MAINBOARD

(5/6)CN902

(Page 41)

C

R406

R407

R408

R409

R411

R412

R410

C151R203

C141

R143

R142

R141

C133

R133

R132

R131C134

TP12

5

TP12

4

C125 R121

C15

C122C123

C132

C142

R151

C111

C113

C112

C114

R111

TP429

TP428

TP430

TP431

C115

C195

TP432

IC101

C163

R163

C196

R162

C210

C194

R253TP418

JPO004C251R252R251

C16R12

JPO10 R11

C17

C18

R10

TP10

TP11

TP12

TP13

TP14

TP15

TP16

TP17

TP18

TP19

C182

C201

C181

C258

C257

C252

C255

C260

R181

R182

C183

C184

C203C162

C161

R352 TP427

TP103

TP104

TP105

C209

TP43

6

TP42

0

TP42

1

C186

C185

R191

TP251

TP252

TP253

TP250

C306

R405

R404

R419

R403

R402

R401

R302

C317

R305

R301

C316C315

R313

C307

C302 C303C305 TP422

C312C313C314 C311 C309 C308

R303

C310

R353

R354

C11

C10

C14

C116

C318

R307

R351

TP433

TP187

TP401

TP409

TP411

TP410

TP434

TP419

TP412

TP413

TP414

TP415

TP416

TP417

TP408

TP407

TP406

TP405

TP404

TP403

TP402

TP186

R205

C320

C213

C212

C211

TP435

CN101

TP423

IC301

R173

Q10

C143

C171 R171

R172

R165

TP425

TP426

S101

C259

IC251

M102

M101

R201

R204

CN201

FB301

IC303

TP102

R306

R113

JPO102

JPO103

R13

TP424

R112

R114

TP17

7

C124

C172

C131

C174X171

100

100

100

100

100

100

100

10010V0

0.1

3.3k

1k

4.7k

0.01

180k

10k

1M0.1

RFAC

I

RFAC

O

0.1 15k

0.1

0.10.1

0.47

1500p

0

3300p

3300p

470p

470p

1k

FFDR

FRDR

TRDR

TFDR

0.1

0.1

MDP

CXD3059AR

0.1

100

0.1

47k

0.1

0.1

10kGAIN_SW

MDP6800p22k10k

1100k

APC 0

2204V

1000p

3.3

E

D

A

B

C

PD

F+

F-

T-

F-

0.1

10010V

0.1

0.1

0.1

0.1

0.1

22010V

100

100

226.3V

226.3V

10010V0.1

0.1

100

PCMDI

LRCK

PCMD

BCK

0.01

AVDD

AGND

DGND

470p

470p

0

SP+

SL+

SL-

SP-

0.1

100

100

100

100

100

100

10k

0.01

100k

100k

0.00220.1

220

0.1

0.1 0.12204VMP3GND

0.10.1474V 0.1 0.1474V

100k

0.1

100

100

10

10

0.1

10010V

0.01

10k

100

MP3VDD

MGND

MP3STB

DOUT

LOUT

ROUT

AVDD

XTCN

XRST

DATA

XLT

CLK

SENS

SCOR

MP3RST

MICS

MILP

MIDIO

MICK

MIACK

MP3REQ

MVDD

0 0

C4010

22p

22p

220p

DVDD

16P

IOP1

TC94A34FG-002

0

2SA2119K

0.1

22p 470

1M

0

SW+

SW-

0.1

BA5947FM-E2

27P

BH15FB1WG

F

0

1k

FEI

TEI

1

IOP2

15k

15k

VC

330p

27p

100p

0.116.9344MHz

E

F

F

E

D

A

B

C

MIACK

MICK

MIDIO

MILP

MICS

SCOR

SENS

CLOC

K

DATA

XRST

XLT

CLOCK

SENS

SCOR

XRST

MP3REQ

DATA

MP3STB

XTACN

XTAC

N

MP3STB

D

C

B

A

MP3RST

XLT

MP3REQ

MIACK

MICK

MIDIO

MILP

MICS

MP3RST

MDP

SFDR

SFDR

SRDR

SRDR

FRDR

FRDR

FFDR

FFDR

TFDR

TFDR

TRDR

TRDR

F+

F+

T+

T+

T-

T-

F-

F-

MDP

DOUT

AOUT1

AOUT2

AOUT1

AOUT2

VC

VCC

PD

LD

T-

F-

T+

F+

VR

AGND

F

C

B

A

E

D

OPIN

-

OPIN

+ SW

CH1F

IN

CH1R

IN

CH2F

IN

CH2R

IN

GND

CNF4

POW

VCC

CH2O

UTR

CH2O

UTF

CH1O

UTR

CH4O

UTR

CH4O

UTF

CH3O

UTF

CH3O

UTR

POW

VCC

MUT

E

GND

CH3R

IN

CH3F

IN

CH4I

N

CH4C

APA

OUTV

REF

OPOU

T

PREV

CC

MIRR

NC

DFCT

FOK

VSS

LOCK

MDP

SSTP

IOVSS1

SFDR

SRDR

TFDR

TRDR

FFDR

FRDR

IOVDD1

AVDD0

AVSS0

NC

E

F

TEI

TEO

FEI

FEO

VC

A

B

C

D

NCAVDD

4

RFDC

O

PDSE

NS

AC_S

UM

EG_I

NLDPDRFC

AVSS

4

RFAC

O

RFAC

I

AVDD

3

BIAS

ASYI

ASYO NC

VPCO

VCTL

AVSS

3

CLTV

FILOFILI

PCO

AVDD

5

DDVR

OUT

DDVR

SEN

AVSS

5

DDCRNC

BCKI

LRCKI

LRCK

VSS

PCMD

BCK

VDD

EMPH

EMPHI

IOVDD2

DOUT

TEST

TEST1

IOVSS2

NC

XVSS

XTAO

XTAI

XVDD

AVDD1

AOUT1

VREFL

AVSS1

AVSS2

VREFR

AOUT2

AVDD2

NC

IOVDD0

RMUT

LMUT NC XTSL

IOVS

S0

XTAC

N

SQSO

SQCK

SBSO

EXCK

XRST

SYSM

DATA

VSS

XLAT

CLOC

K

VDD

SENS

SCLK

ATSK

WFC

K

XUGF

XPCK

GFS

C2PO

SCOR

VDD

C4M

WDC

K

COUT

PCMDI

VIN

GND

STBY

NCVOUT

LOUT

AGND

ROUT

MP3RST

DOUT

MGND

MP3GND

MILP

MICS

MP3REQ

MIACK

MIDIO

MICK

MP3STB

MP3(3.3V)

DVDD(3.3V)

AVDD(3.3V)

MGND

DGND

XTCN

SCOR

SENS

XLT

DATA

XRST

CLK

M+7V

SBSY

/BCK

IB

SFSY

/LRC

KIB

TXO

VDD

CKI/C

LOCK

/

IRQ/

FIO

VSS

PIO0

/SDI

2/IO

0

PIO1

/SDI

3/IO

1

PIO2

/IO2

PIO3

/IO3

PIO4

/FI1

/BUS

0/IO

4

PIO5

/FI2

/BUS

1/IO

5

PIO6

/FI3

/BUS

2/IO

7

PIO7

/BUS

3/IO

7

AD4/

PO04

AD3/

PO03

AD2/

PO02

AD1/

PO01

AD0/

PO00

VSS

VDD

CKO/

PO13

/AD1

6

VDDX

XO XI VSSX

TEST

MIM

D

VSSP

VCOI

VDDP

RESET

STANBY

MICS

MILP

MIDIO

MICK

MIACK

VDDT

VSS

BCKO

LRCKO

SDO0

SDI0

BCKIA

LRCKIA

DATA

SDI1/

SDO2

CS/RAS/

AD15/CAS/

PO12

SDO3/OE

PO11/BUCK/AD14

PO10/CCE/AD13

PO9/AD12

PO08/AD11

SRMSTB

VDDT

AD10

AD9

AD8

PO07/AD7

PO06/AD6

AD5/PO05

VDDM

WE/SDO1

AUTOMATIC

CD DSP

(LIMIT)

MOTOR/COIL

(SPINDLE)

(SLED)

+1.5V REGULATOR

MP3 DECODER

CONTROL

POWER

DRIVE

CH1O

UTF

(KSM-215CFP)

3232

CX-LDB75

CX-LDB75

8-4. PRINTED WIRING BOARDS CHANGER SECTION See page 27 for Circuit Boards Location. :Uses unleaded solder.


Ref. No. LocationD701 C-4D711 C-4D721 C-4

IC701 C-4IC711 D-4IC721 C-4IC751 C-2

Q731 B-5

IC701

IC721IC711

IC751

In the midst disc is moving between play position and stockerON : disc is play position sideOFF : disc is stocker side

OFF: In the Midst disc is movingbetween play position and stocker

S716 (STOCKER IN/OUT)

S717 (DISC POSITION)

S718 (STOCKING)

ON:The moment disc in/out

from stocker

36

1 2

A

B

C

D

E

3 4 5 6 7 98

3333

CX-LDB75

CX-LDB75

8-5. SCHEMATIC DIAGRAM CHANGER SECTION See page 46 for IC Block Diagrams.

R733

R711 C764

C763

C762

C765

C769

C753

C752

C751

C755

C756

C758

C754

S713

S714

S718

S717

S716

S715

S711

CN710

M771

Q731

R731

R734

R732

R702

R701D701

C711

R712

D721 R721

D711C761 R722

C781

CN704

CN703

CN702

C768

C766

C767

CN701

C771

CN771

S702

S771

IC701

IC711

IC721

CN751

IC751

CN781

CN761

M781

M761

CN741 CN708

CN731 CN707

CN721 CN706

CN711 CN705

10k

680 0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

7P

RT1N141

91

10k

1k

100

680MTZJ-T-77-5.1C

1050V

100

MTZJ-T-77-4.3B 680

MTZJ-T-77-6.2A0.01 100

0.01

2P

2P

3P

0.1

0.1

0.1

27P

0.01

7P

BA6956AN

BA6956AN

BA6956AN

3P

RPR-220

2P

2P

4P 4P

2P 2P

3P 3P

2P 2P

SW1

SW1

SW2B

SW2B

SW2A

SW2A

SW3

SW3

SW5B

SW5A

SW5A

SW4

SW5B

SW4

GND

E1

E2

E3

E4

GND

GND

D SENSE D SENSE

DIODE DIODE

E1

E2

E3

E4

GND

MTR MD 2

MTR MD 1

SW2-A

SW1

SW2-B

SW3

SW5-A

SW4

SW5-B

GND

GND

GND

GND

SW3

D+3.3V

M+12V

MGND

MGND

D.SENSOR

SW1-A

SW2-A

SW2-B

SW5-B

SW5-A

SW4

SLD (MD) POS

SLD (MD) NEG

LOD (ROL) NEG

LOD (ROL) POS

SLD E0

P02 SLD E1

SLD E2

SLD E3

ELV E1

ELV E0

ELV NEG

ELV POS

M+12V

ELV E2

ELV E3

MTR MD 2

MTR MD 1

MTR ST 2

MTR ST 1

MTR RL 2

MTR RL 1

MTR ST 2

MTR ST 1

MTR RL 1

MTR RL 2

SW2-A

SW1

SW2-B

GND

GND

SW3

GND

SW5-A

SW4

SW5-B

GND

OU

T2

GN

D

OU

T1

VC

C

VR

EF

RN

F

VM

FIN

RIN

OU

T2

GN

D

OU

T1

VC

C

VR

EF

RN

F

VM

FIN

RIN

OU

T2

GN

D

OU

T1

VC

C

VR

EF

RN

F

VM

FIN

RIN

(MODE)

(STOCKER POSITION)ROTARY ENCODER

ROTARY ENCODER

(MODE)

LEVEL

SHIFT

MODE MOTOR

DRIVE

DRIVE

ROLLER MOTOR

DRIVE

STOCKER MOTOR

DISC INSERT

DETECT SENSOR

(ROLLER)

(STOCKER)

(DISC INSERT(8/12cm))

(ON:WHEN DISC INSERT)

(ON:PLAY POSITION)

(DISC IN(8/12cm))

(DISC IN(8cm))

(ON:PLAY POSITION(8cm DISC ONLY))

(DISC OUT)

(ON:WHEN DISC OUT FROM PLAY POSITION)

(STOCKER IN/OUT)

ON:THE MOMENT DISC IN/OUT

FROM STOCKER

(DISC POSITION)

IN THE MIDST DISC IS MOVING

BETWEEN PLAY POSITION AND STOCKER

ON:DISC IS PLAY POSITION SIDE

OFF:DISC IS STOCKER SIDE

(STOCKING)

OFF:IN THE MIDST DISC IS MOVING

BETWEEN PLAY POSITION AND STOCKER

+

-

+

-

1

3

1

3

1

2

1

2

1

2

1

2

1

2

1

1 1

3 3

2

1

2

1

1 1

4 4

2

1 1

7 7

+

-

MAIN BOARD (5/6)

CN901(Page 41)

3 . 2

IC751

3434

CX-LDB75

CX-LDB75

8-6. PRINTED WIRING BOARD FRONT SECTION See page 27 for Circuit Boards Location. :Uses unleaded solder.


Ref. No. LocationD901 B-6D902 F-2D903 D-3D904 B-3D905 B-2D906 C-2D907 C-2

IC902 B-3

Q994 F-2Q995 B-6Q996 B-3

IC902

DISC1

CD

CD SYNC

RECPAUSE/START

DISC2

DISC3

DISC4

DISC5

VOLUME

FUNCTION TUNERBAND

DIRECTION

BASS

TREBLE

DISPLAY

i-Bass

i-Bass

(FLUORESCENT INDICATOR TUBE)(BACK LIGHT)

(BACK LIGHT)

(BACK LIGHT)

1 2

A

B

C

D

E

F

G

3 4 5 6

AMAIN

BOARDCN904

(Page 36)

1|/

1|/

TAPECD

TUNING -m

.

TUNING +

u

Z

E

E

E

b B

M>

3535

CX-LDB75

CX-LDB75

8-7. SCHEMATIC DIAGRAM FRONT SECTION

S922 S923S921

D902

D905 D906 D907

D904

C96

0

R903 R904

R92

5

R92

6R

927

R928

R93

0

R931

R93

2R

934

R93

5

R93

6

R937

R93

8R

939

R94

0

R94

1

R942

R943

R944

R946

R947

R948R950R952R954R956R958

R961R963R965R967R969R971R973R975

R976

R977

R98

3

R98

4

R98

5

R98

6

R98

8

R98

9

R990

S924S925

S926S927S928S929S930S931

S932S933S934S935S936S937S938S939S940S941

S942

C908

C909

R994

R795

C988R992

C907

R993

R991R987

LCD901

IC902

C902

R981

D901

R957

Q995

R979 R955

Q994

R929

Q996

C986

C961

C927

C928

C929

C997

C987

CN905D903

25MM 25MMRE012304

SELS6B14CTP5

SELU1910CXM-SLF38

SELU1910CXM-SLF38

SELU1910CXM-SLF38

DA204KT-146

0.01

25V

B

47 47

47k

27k

6.8k

10

1k

1.5k6.8k

27k

47k

1.5k

1k

6.8k

27k

47k

1.5k

1k

47 1/8W

47k

220

10

3304706801k1.5k2.2k

2203304706801k1.5k2.2k4.7k

4.7k

10k

2.2k 2.2k

2.2k 2.2k

2.2k

2.2k

2.2k

SWITDHTACTILESWITDH

TACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

SWITDHTACTILE

1

1

680

2.2k

0.01470k

10

330k2.2k

RPM7240-H4

0.1

1k1/8W

SLI-325URCT31W

1k

DTC114YKA-T146

1501/8W

1k

DTC114YKA-T146

470

2SC3052F

0.01

0.01

0.01

0.01 0.01

0.01

0.01

19PUDZSTE-17-4.3B

3636

CX-LDB75

CX-LDB75

8-8. PRINTED WIRING BOARDS MAIN SECTION

IC001

IC501

IC502

POWER TRANSFORMER (SUB)

2 1

2 1

3

1

1 3

EH

IC601

IC901

IC904

IC902

E

E

S

S

S

S

EE

E

E

1

8

SS

S

1 27

EE

EE

E

S

S

E

EEEE

E

E

1 5

1-861-766-

E51

AEPE51

AEP

E51

FAN

ACIN

GPT

BOARDCN256

(Page 43)

DPT

BOARDCN257

(Page 43)

EPT

BOARDCNA254

(Page 43)

FPT

BOARDCNA255

(Page 43)

AEPE51

E51

BCONNECTOR

BOARDCN701

(Page 32)A

FRONTBOARDCN905

(Page 34)C

BDBOARDCN201

(Page 30)

E51

E51

E51

E51

127

VOLTAGESELECTOR

EE

E

E

E E

E

E

E E

EE

E E

E E

E

E

E E

E

EE

E

E

E

E

E

EE

EE

E

E

E

E

E

EESS

E

E

E

E

E

E

E

E

E

E

E

E

E

E

1 2

A

B

C

D

E

F

G

H

3 4 5 6 7 8 9 10

See page 27 for Circuit Boards Location. :Uses unleaded solder.

Semiconductor LocationRef. No. LocationD001 D-2D002 D-3D003 E-3D010 D-4D011 D-4D012 E-4D015 G-4D016 G-4D017 G-4D020 G-5D021 F-4D022 D-3D023 D-3D024 D-3D025 D-4D026 E-3D027 E-3D028 E-3D029 E-3D030 G-5D031 E-4D034 C-4D035 C-4D036 E-3D037 E-4D038 E-3D101 F-6D102 F-6D103 F-7D104 F-6D105 F-6D106 F-6D107 F-6D108 G-6D111 F-6D112 F-6D113 G-6D114 G-6D201 F-5D202 F-5D203 F-5D204 F-5D205 G-5D206 G-5D207 G-5D208 G-5D209 E-5D210 F-5D249 F-6D250 E-6D251 G-3D252 G-3D253 G-3D254 G-3D255 E-3D256 G-3D257 G-3D294 E-3

Ref. No. LocationD295 E-3D301 C-6D302 C-7D501 E-6D502 E-6D601 D-5D602 C-5D603 B-5D604 B-5D605 B-5D606 B-6D607 D-7D608 D-7D609 B-5D610 B-5D703 B-8D862 B-3D901 B-8D904 B-8D905 B-8D907 D-8D908 B-7D911 B-7

IC001 G-4IC501 E-6IC502 E-5IC601 C-6IC901 C-8IC902 B-7IC904 B-8

Q006 G-4Q008 F-4Q009 C-4Q010 C-4Q011 G-4Q012 G-4Q015 F-4Q018 G-4Q019 G-4Q020 G-4Q021 G-5Q060 E-4Q061 E-3Q062 E-3Q063 E-4Q064 E-3Q065 E-3Q101 F-7Q102 F-6Q103 F-7Q104 F-6Q105 F-7Q106 F-6Q107 F-7Q108 F-6Q109 F-7

Ref. No. LocationQ110 F-6Q111 F-6Q112 F-5Q113 G-6Q114 G-5Q117 G-6Q118 G-5Q119 G-7Q120 G-5Q123 G-6Q124 G-6Q127 G-6Q128 G-5Q201 F-5Q202 F-5Q203 F-5Q204 F-5Q205 F-5Q206 F-5Q235 F-6Q250 F-6Q251 F-6Q280 G-5Q281 G-5Q291 D-2Q292 D-1Q293 D-2Q294 D-1Q305 C-6Q306 C-6Q307 C-6Q308 C-6Q309 C-6Q451 D-6Q452 D-7Q453 D-6Q454 D-6Q501 E-6Q502 E-5Q503 E-6Q504 E-5Q505 E-6Q506 E-5Q507 E-7Q508 E-6Q509 E-6Q510 E-6Q601 C-7Q607 C-5Q608 B-6Q901 B-8Q902 D-8Q903 D-8Q904 D-8Q905 D-8Q906 B-7

3737

CX-LDB75

CX-LDB75

8-9. SCHEMATIC DIAGRAM MAIN SECTION 1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

C301 C363

C607

C608

C609

C610

C611

C612

C613

C639

C640

C643

C644

C655

C689

C69

0

D301

D302

D601

D602

D60

3

D60

4

D606

D607

D608

FB602

JR694

JR699

Q305

Q306

R042R043R044R045

R046 R047 R048 R049

R303

R304

R305

R457

R458

R459

R601

R602

R603

R604

R605

R606

R607

R608

R609 R611

R612

R61

3

R61

4

R615

R616

R61

7

R61

8

R619

R620

R621

R622

R623

R624

R631

R632

R63

6

R644

R647

R649

R650

R65

1

R65

2

R655

R656

R657R658

R660

R663R664

R665

R66

7

R66

8

R629 R630

C601

JR697

JW698

R648

C605

C606

R643

R646

R645

C622

C623

C621

C624

C603

R642

Q601

C604FB601

C602

C303

C304

R628

R638

C630

C634

R634

C63

8

C63

7

R635

R633R637

C629

R627

C635

C631

R672

R671

R307

C310R306

C463

Q307

Q309

Q308

R639

R610C614

R640

C461

C462

R461

R462C457

Q453

R454C456

C453

R455

Q454

C455

C454

R456

C452

R451

Q451

Q452

C451

C460

R453

CNA302

Q608

C653

C652C656

D605

C650

Q607

C649

C654IC601

C625

L451

C616

C618

C615

C617

R641

C632

470p 0.116V

B

47p

47p

0.006825V

0.006825V

470p

470p

4.7 50V

47 25V

47 25V

330p

330p

150

V

150

V

150

V

1SS133T-72

1SS133T-72

MTZJ-T-72- 4.7A

MTZJ-T-72- 4.7A

1SS

133T

-72

1SS

133T

-72

1SS133T-72

1SS133T-72

1SS133T-72

0

2SA1235 TP-1EF

2SA1235 TP-1EF

220 1/4W220 1/4W220 1/4W100 1/4W

100 1/4W 220 1/4W 220 1/4W 220 1/4W

82k

82k

220k

100k

56k4.7k

56

56

390k

390k

1.2k

1.2k

18k

18k

12k10k

10k

15k

15k

1k 1/4W

1k 1/4W

18k

18k

4.7k

4.7k

4.7k

4.7k

4.7k

4.7k

2.2k

2.2k

1k

100k

10k

3.9k

3.9k

100

100

1/4W

6.8k

6.8k1/4W

10k10k

470k

1.8k1.8k

470k

68k68

k

15k 15k

330 16V

0

JW

390

100 16V

100 16V

100k

5.6k

5.6k

0.001

0.001

0.001

0.001

0.1

2.2k

DTA114EKA-T146

0.1

0

22010V

0.0012C46722P

C466 22P

0.0012

2.2k

1k

0.0047

180p

1.8k

0.00

68

0.00

68

1k

1.8k1k

0.00

47

2.2k

180p

0.0022

18k

18k

1k

0.0011k

0.1

C4680.01

2SK2541

2SK2541

2SK2541

18k

12k4.750V

18k

390p

390p

15k

15k0.0056

2SC3383T-AA

8.21/4W

0.01

0.0027

18k

2SC3383T-AA

0.0027

0.00

27

18k

22 25V

2.2k

2SC2001TPK1K2

2SC3052FT1-LF

0.1

0.1

1k1/4W

8P

2SC3052FT1-LF

4.750V

150V

150V

1SS133T-72

0.1

2SC3052FT1-LF

150V

4.750V

BD3882FV

1050V

85KOSC BIAS

0.15

0.15

0.15

0.15

4.7k1/4W

0.0022

0

0

See page 46 for IC Block Diagram.

3838

CX-LDB75

CX-LDB75


R662

Q124

Q108

Q111

R171

R11

2

R108

R10

6

R113

R11

1

R107

R10

5

R104

R103

R126

R125

R143

R144

R138

R133

R135

R156

R128R122R120

R127R121R119

R117

R172

R152

R165

R134

R136

R181

R182

R183

R185

C097

Q117

Q118

C127

C128

C97

5R

503

R501

R505 R507

R509R511

R517

R513

C509

Q501Q503

R522

R52

1

R52

3

C52

0

R518

R51

5

C502

R502

R506 R508

R516

R512

C510

R514

R519

R520

R524

R173

R174

R150

C147

C148

R884

R887

R880

Q106

Q104

Q105

Q103

Q112

D103

D10

4

C104

C108

C103

C10

7

C121

Q120

R132

R131

R129

R130

R139

R140

R897

R898

R177

R178

D101

D102

D105

D106

D108

D112

D113

D114

EP002

EP00

3

R661

R257

J602

C883

C882

C867

C869

D862

C868

R885

JW891

C626

R527

R528

R526

C503

C501

R530

C505

R529

C515

C513

Q505

C507 C511

C519

Q507

Q506

C504

C506

C508 C512

R510

C516

R531

C514

D501

D50

2

C521

R525

Q509

Q508

Q510

R532R504

C524

C523

IC502(1/2)C122

R109

Q235Q101

Q102

C102

C10

1

R115

R123

C123

Q109

D111

R157D107

C125R151

Q113

Q127

C119

R137 R155

C113

Q123

R141

R124

R118 C112

C124

R166C126 C114

R114

Q114

Q128

R176

C12

0

C118

R142

Q119

C117

R175

C971

Q504Q502

TH102

TH101

CN602

IC501

Q107

C111

R116

Q110

R158

JW810

3.9k

2SA1587-BL

2SC3052FT1-LF

KTC3200GR

2.2k

820

100

27k

27k

820

100

27k

12k

12k

1k 1/8W

1k 1/8W

10k

10k

100

2.2k

1.8k

5.6k

47100100

47100100

10k

2.2k

0

1k

2.2k

1.8k

2.2k

2.2k

47k

1M

0.1

2SB1686

2SB1686

100p

100p

0.1

50V

10k

22k

100k 100k

100k

47k

100k

100k

0.047

2SK2158-2SK2158-

220k

220k

220k

0.01

100k

R5331k

1M

0.150V

22k

100k 100k

1M

47k

0.047

100k

100k

100k

2.2k

2.2k

2.2k

10k

0.1

0.1

2.2k

47k

47k

2SA1587-BL

2SA1587-BL

2SA1587-BL

2SA1587-BL

KTC3200GR

1SS133T-72

1SS1

33T-

72

1 50V

4725

V

1 50V

4725

V

1 50V

2SD2642

JW

JW

100k

100k

15k

15k

1SS133T-72

1SS133T-72

1SS133T-72

1SS133T-72

1SS133T-72

1SS133T-72

1SS244T-72

1SS244T-72

TERMINAL,EARTH

TER

MIN

AL,

EAR

TH

3.9k

1.2k

0.022

0.022

47016V

1SS133T-72

0.12.2k

JW

0.1

1k

1k

JW

100p

4.750V

10k

100p

10k

0.1

0.1

2SJ106GR-TE85L

0.022 0.022

4.750V

2SC3052F-T1-LF

2SJ106GR-TE85L

100p

100p

0.022 0.022

100k

0.1

10k

0.1

1SS133T-72

MTZ

J-T-

72-

2.2B

4.750V

68k

DTC114EKA-T146

DTA114EKA-T146

DTC114EKA-T146

10k10k

220p

220p

C157100p

NJM4558M TE21

50V

100k

2SA1235TP-1EF2SC3052FT1-LF

2SC3052FT1-LF

680p

680p

2.2k

2.2k

0.001

2SC3052FT1-LF

1SS133T-72

4.7k1SS133T-72

100p0

2SC3052F

2SC3052F

0.01

100 5.6k

100p

2SA1587-BL

1k

2.2k

10k 4750V

0.001

1k 100p 100p

27k1/4W

2SC3052F

2SC3052F

330

0.01

0.1

1k

2SD2642

0.1

330

4.750V

2SK2158-T2B2SK2158-T2B

C-THMS, 55001

C-THMS, 55001NJM4558MTE2

2SC3052FT1-LF

4750V

2.2k

2SC3052FT1-LF

4.7k

0.223W

0.223W

0.223W

0.223W

0.01

JW

25

26

27

28

29

30

31

32

33

34

35

3939

CX-LDB75

CX-LDB75


D201

L202

L201

R280

R282

R281

R297

R298

Q201

R203

Q203

R205

R213

D20

3R

215

R21

7

R206

R214

R204

D20

4

R216 R218

R223

R224

R222

R221

D20

7

D20

6

R250

R253

C231

C232

R255R256

R272R

270

R27

1

R273

C292

C201

R201

R207

R209

R211

R208

R210

R21

2

R202

R219

R274

D295

R293

EP004

Q281

Q280

Q251

C271

D249

D250

Q250

C27

0

D209

D20

5

D208

Q205

Q206

C202

D202

Q204

Q202

D210 C240

R251

R252

C227

C225

C226

C228

D29

4

R29

1

Q292

R299

Q291

R292

R295

R296

C291

R294

CN291

Q293

Q294

J201

CNA201

R263

R261

R264

R262

R260

J202

CN203

R259

RK46LF-T2

47k

10k

2.2k

10k

2.2k

2SJ599-Z

470

2SC3052F T1-LF

100k

1k

1SS

133T

-72

4.7k

4.7k

100k

1k

470

1SS

133T

-72

4.7k 4.7k

27k

27k

100k

100k

1SS

133T

-72

1SS

133T

-72

10 1/4W

10 1/4W

0.01

1000p

22k22k

47k10

k

10k

10k

47 25V

4763V

1.5k

5.6k

2.2k

10k

6.8k

2.2k

10k

1.5k

1k

10k

1SS133T-72

18k

TERMINAL,EARTH

2SA1587-BL

DTA114EKA-T146

2SA1587-BL

0.0047

1SS133T-72

1SS133T-72

2SD814A(RS)

0.00

22

1SS133T-72

1SS

133T

-72

1SS133T-72

2SA1235

2SC3052F T1-LF

4763V

RK46LF-T2

2SA1235TP-1EF

2SK3377-Z

1SS133T-72 0.1

101/4W

101/4W

0.1

0.1

0.1

0.1

1SS

133T

-72

10k

2SC3052F T1-LF

4.7

2SC3052F T1-LF

10k

47k

0

4.750V

100k

3P

KTC3198GR-AT

2SC3052FT1-LF

5P

2.2k1/8W

220 1/2W

2.2k1/8W

2201/2W

2201/2W

5P

2201/2W

4040

CX-LDB75

CX-LDB75


37

38

39

40

41

42

43

36

Q061

D021

C016

R07

1

R030

R03

6

R034

R026

R052

R051

R016

Q019

R019

R017

D01

7

D01

6

R035R038

R024

R080

R083

JR002

Q062

Q063

R07

9

R09

5

R09

6

R07

6

R020

R021

R059R056

R029

C021

C022

C061

C036

C015

D03

4

C013

R033

D020

D01

5

C018

FB001

R09

3

R094

R08

2

D02

2

D02

3

D02

6

D02

7

D02

5

D029

D02

8 D038

D037

D031

D036

C083

D032

EP001

R08

4

R063

R061

R062

R065

D003 Q064

C032

Q021

Q008

R078

C012C011

C006C005

C019

C020

D001

C004C003

Q011

R028

Q015

D030

Q012R022

C010C009D002

R025

R058

C034

R060R023

R057

D012D011D010

Q006

IC001

C028C029 C014

C023

Q018

D018

Q020

C030 C027

Q009

Q010R031

C035 R053

R07

0

R07

7

C033

R072

C031

R081

Q065

Q060

R015

R064

C017

R018 D03

5

C03

7 D02

4 2SA1235

MTZJ-T-72-10C

0.01

56k

22k

47k

220k

10k

1k

1k

4701/4W

2SB1375

470

47k

1SS1

33T-

72

1SS

133T

-72

47k100

1/4W

4.7k

47k

47k

0

2SA1235

2SA1235

8.2k

8.2k

4.7k

1 1/4W

1 1/4W

22047

47k

470025V

470025V

47 25V

470 16V

100 16V

1SS

133T

-72

0.0047

470

1SS133T-72

MTZ

J-T-

72-

3.3A

100

16V

JW

39k

22k

1SS

133T

-72

1SS

133T

-72

1SS

133T

-72

1SS

133T

-72

1SS

133T

-72

1SS133T-72

1SS

133T

-72

1SS133T-72

1SS133T-72

1SS133T-72

1SS133T-72

470 25V

JW

TERMINAL,EARTH

22k

10k

22k

47k

47k

MTZJ-T-72- 12C 2SC3052F T1-LF

0.1

DTC114YKA- T146

2SC3052F T1-LF

39k

0.10.1

100000p100000p

2200

2200

G5SBA60L-6088

100000p100000p

2SB1375

220

2SA1235TP-1EF

1SS133T-72

KTC3198GR1k

0.10.1G5SBA60L-6088

100k1/4W

10k

4725V

470100

4.7k

1SS133T-721SS133T-721SS133T-72

2SC3052FT1-LF

TA7807S

0.10.1 100

16V10016V

2SC3052FT1-LF

JW

2SA952TP-K1K2

0.1 10016V

KTA1266GR

2SC3052FT1-LF100

10016V 1k

2.7k

6.8k

2.2

50V

56k

0.1

100

2SC3052FT1-LF

DTC114EKA-T146

22k

10k

1050V

100

1SS

133T

-72

4.7

50V

1SS

133T

-72

100k

100k

4141

CX-LDB75

CX-LDB75


30 35 32 33 34 31 28 29 27 26 25 44

21

3

6

9

19

26

17

16

15

12

14

13

18

4

5

1

2

8

11

10

7

24

22

23

TP996

TP997

IC902

Q904

C648

C906

C90

7

C90

9

C910

C91

1

C912

C913

C915

C916

C917

C918

C919

C921

C926

C95

0

C953D60

9

D61

0

D702

D90

1

D904

D905D906

D907

D90

8

JR901

JR906

Q905

R70

2

R70

3

R70

4

R70

5

R70

6

R707

R708

R709

R710

R711

R712

R713

R714

R715

R716

R71

7

R71

8

R71

9

R72

0

R72

1

R72

2

R72

4

R72

5

R72

6

R72

7

R73

0

R73

2

R73

3

R73

4

R73

5

R736

R73

7

R738

R73

9

R74

6

R748

R749

R750

R751

R753

R75

4

R756

R75

7

R76

0

R763

R76

4

R76

5

R76

6

R76

7

R76

8

R76

9

R770

R771

R772

R77

3R

775

R77

6

R77

7

R779

R780

R781

R782

R78

3

R78

4

R78

5

R78

6

R78

7

R78

8

R78

9

R79

0

R79

1

R79

2

R79

3

R901

R902

R903

R904

R905

R906

R907

R908

R909R910

R911

R912

R913

R914

R915

R916

R917

R918

R919

R920

R921

R922

R92

3

R92

4

R925

R926

R927

R928

R929

R930

R931

R932

R933

R934

R935

R936

R937

R938

R939

R9

CX-LDB75

Documents

Transcript of CX-LDB75