LG 26LK310 (Chassis LP91J) Manual de Servicio LCD

8/9/2019 LG 26LK310 (Chassis LP91J) Manual de Servicio LCD

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LCD TVSERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : LP91J

MODEL : 26LK310/310Y 26LK310/310Y-TAMODEL : 26LK311 26LK311-TB

North/Latin America http://aic.lgservice.comEurope/Africa http://eic.lgservice.comAsia/Oceania http://biz.lgservice.com

Internal Use Only

Printed in KoreaP/NO : MFL62461531 (1104-REV01)

Proporcionado por: Carlos Alexis Ortz Colmenares (Tcnico en Electrnica) San Salvador, El Salvador.


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LGE Internal Use OnlyCopyright 2011 LG Electronics. Inc. All right reserved.Only for training and service purposes

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CONTENTS

CONTENTS .............................................................................................. 2

PRODUCT SAFETY ..................................................................................3

SPECIFICATION ........................................................................................6

ADJUSTMENT INSTRUCTION .................................................................9

TROUBLE SHOOTING............................................................................14

BLOCK DIAGRAM...................................................................................17

EXPLODED VIEW .................................................................................. 18

SCHEMATIC CIRCUIT DIAGRAM ..............................................................


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SAFETY PRECAUTIONS

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in theSchematic Diagram and Exploded View.It is essential that these special safety parts should be replaced with the same components as recommended in this manual to preventShock, Fire, or other Hazards.Do not modify the original design without permission of manufacturer.

General Guidance

An isolation Transformer should always be used during theservicing of a receiver whose chassis is not isolated from the ACpower line. Use a transformer of adequate power rating as thisprotects the technician from accidents resulting in personal injuryfrom electrical shocks.

It will also protect the receiver and it's components from beingdamaged by accidental shorts of the circuitry that may beinadvertently introduced during the service operation.

If any fuse (or Fusible Resistor) in this TV receiver is blown,replace it with the specified.

When replacing a high wattage resistor (Oxide Metal Film Resistor,over 1W), keep the resistor 10mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

always perform an AC leakage current check on the exposedmetallic parts of the cabinet, such as antennas, terminals, etc., tobe sure the set is safe to operate without damage of electricalshock.

Leakage Current Cold Check(Antenna Cold Check)With the instrument AC plug removed from AC source, connect anelectrical jumper across the two AC plug prongs. Place the ACswitch in the on position, connect one lead of ohm-meter to the ACplug prongs tied together and touch other ohm-meter lead in turn toeach exposed metallic parts such as antenna terminals, phone

jacks, etc.If the exposed metallic part has a return path to the chassis, themeasured resistance should be between 1M and 5.2M.When the exposed metal has no return path to the chassis thereading must be infinite.An other abnormality exists that must be corrected before thereceiver is returned to the customer.

Leakage Current Hot Check (See below Figure)Plug the AC cord directly into the AC outlet.

Do not use a line Isolation Transformer during this check.Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitorbetween a known good earth ground (Water Pipe, Conduit, etc.)and the exposed metallic parts.Measure the AC voltage across the resistor using AC voltmeter

with 1000 ohms/volt or more sensitivity.Reverse plug the AC cord into the AC outlet and repeat AC voltagemeasurements for each exposed metallic part. Any voltagemeasured must not exceed 0.75 volt RMS which is corresponds to0.5mA.In case any measurement is out of the limits specified, there ispossibility of shock hazard and the set must be checked andrepaired before it is returned to the customer.

Leakage Current Hot Check circuit

1.5 Kohm/10W

To Instrument'sexposedMETALLIC PARTS

Good Earth Groundsuch as WATER PIPE,CONDUIT etc.

AC Volt-meter

When 25A is impressed between Earth and 2nd Groundfor 1 second, Resistance must be less than 0.1*Base on Adjustment standard

IMPORTANT SAFETY NOTICE

0.15uF


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CAUTION: Before servicing receivers covered by this servicemanual and its supplements and addenda, read and follow theSAFETY PRECAUTIONS on page 3 of this publication.NOTE: If unforeseen circumstances create conflict between thefollowing servicing precautions and any of the safety precautions onpage 3 of this publication, always follow the safety precautions.Remember: Safety First.

General Servicing Precautions1. Always unplug the receiver AC power cord from the AC power

source before;a. Removing or reinstalling any component, circuit board

module or any other receiver assembly.b. Disconnecting or reconnecting any receiver electrical plug or

other electrical connection.c. Connecting a test substitute in parallel with an electrolytic

capacitor in the receiver.CAUTION: A wrong part substitution or incorrect polarityinstallation of electrolytic capacitors may result in anexplosion hazard.

2. Test high voltage only by measuring it with an appropriate highvoltage meter or other voltage measuring device (DVM,FETVOM, etc) equipped with a suitable high voltage probe.Do not test high voltage by "drawing an arc".

3. Do not spray chemicals on or near this receiver or any of itsassemblies.

4. Unless specified otherwise in this service manual, cleanelectrical contacts only by applying the following mixture to thecontacts with a pipe cleaner, cotton-tipped stick or comparablenon-abrasive applicator; 10% (by volume) Acetone and 90% (byvolume) isopropyl alcohol (90%-99% strength)CAUTION: This is a flammable mixture.

Unless specified otherwise in this service manual, lubrication ofcontacts in not required.5. Do not defeat any plug/socket B+ voltage interlocks with which

receivers covered by this service manual might be equipped.6. Do not apply AC power to this instrument and/or any of its

electrical assemblies unless all solid-state device heat sinks arecorrectly installed.

7. Always connect the test receiver ground lead to the receiverchassis ground before connecting the test receiver positivelead.Always remove the test receiver ground lead last.

8. Use with this receiver only the test fixtures specified in thisservice manual.CAUTION: Do not connect the test fixture ground strap to anyheat sink in this receiver.

Electrostatically Sensitive (ES) DevicesSome semiconductor (solid-state) devices can be damaged easilyby static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ESdevices are integrated circuits and some field-effect transistors andsemiconductor "chip" components. The following techniquesshould be used to help reduce the incidence of componentdamage caused by static by static electricity.1. Immediately before handling any semiconductor component or

semiconductor-equipped assembly, drain off any electrostaticcharge on your body by touching a known earth ground.Alternatively, obtain and wear a commercially availabledischarging wrist strap device, which should be removed to

prevent potential shock reasons prior to applying power to the

unit under test.2. After removing an electrical assembly equipped with ES

devices, place the assembly on a conductive surface such asaluminum foil, to prevent electrostatic charge buildup orexposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ESdevices.

4. Use only an anti-static type solder removal device. Some solderremoval devices not classified as "anti-static" can generateelectrical charges sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generateelectrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protectivepackage until immediately before you are ready to install it.(Most replacement ES devices are packaged with leadselectrically shorted together by conductive foam, aluminum foilor comparable conductive material).

7. Immediately before removing the protective material from theleads of a replacement ES device, touch the protective materialto the chassis or circuit assembly into which the device will beinstalled.CAUTION: Be sure no power is applied to the chassis or circuit,and observe all other safety precautions.

8. Minimize bodily motions when handling unpackagedreplacement ES devices. (Otherwise harmless motion such asthe brushing together of your clothes fabric or the lifting of yourfoot from a carpeted floor can generate static electricitysufficient to damage an ES device.)

General Soldering Guidelines1. Use a grounded-tip, low-wattage soldering iron and appropriate

tip size and shape that will maintain tip temperature within therange or 500 F to 600 F.

2. Use an appropriate gauge of RMA resin-core solder composedof 60 parts tin/40 parts lead.3. Keep the soldering iron tip clean and well tinned.4. Thoroughly clean the surfaces to be soldered. Use a mall wire-

bristle (0.5 inch, or 1.25cm) brush with a metal handle.Do not use freon-propelled spray-on cleaners.

5. Use the following unsoldering techniquea. Allow the soldering iron tip to reach normal temperature.

(500 F to 600 F)b. Heat the component lead until the solder melts.c. Quickly draw the melted solder with an anti-static, suction-

type solder removal device or with solder braid.CAUTION: Work quickly to avoid overheating the circuitboard printed foil.

6. Use the following soldering technique.a. Allow the soldering iron tip to reach a normal temperature

(500 F to 600 F)b. First, hold the soldering iron tip and solder the strand against

the component lead until the solder melts.c. Quickly move the soldering iron tip to the junction of the

component lead and the printed circuit foil, and hold it thereonly until the solder flows onto and around both thecomponent lead and the foil.CAUTION: Work quickly to avoid overheating the circuitboard printed foil.

d. Closely inspect the solder area and remove any excess orsplashed solder with a small wire-bristle brush.

SERVICING PRECAUTIONS


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IC Remove/ReplacementSome chassis circuit boards have slotted holes (oblong) throughwhich the IC leads are inserted and then bent flat against thecircuit foil. When holes are the slotted type, the following techniqueshould be used to remove and replace the IC. When working withboards using the familiar round hole, use the standard techniqueas outlined in paragraphs 5 and 6 above.

Removal1. Desolder and straighten each IC lead in one operation by gently

prying up on the lead with the soldering iron tip as the soldermelts.

2. Draw away the melted solder with an anti-static suction-typesolder removal device (or with solder braid) before removing theIC.

Replacement1. Carefully insert the replacement IC in the circuit board.2. Carefully bend each IC lead against the circuit foil pad and

solder it.3. Clean the soldered areas with a small wire-bristle brush.

(It is not necessary to reapply acrylic coating to the areas).

"Small-Signal" Discrete TransistorRemoval/Replacement1. Remove the defective transistor by clipping its leads as close as

possible to the component body.2. Bend into a "U" shape the end of each of three leads remaining

on the circuit board.3. Bend into a "U" shape the replacement transistor leads.4. Connect the replacement transistor leads to the corresponding

leads extending from the circuit board and crimp the "U" withlong nose pliers to insure metal to metal contact then soldereach connection.

Power Output, Transistor Device

Removal/Replacement1. Heat and remove all solder from around the transistor leads.2. Remove the heat sink mounting screw (if so equipped).3. Carefully remove the transistor from the heat sink of the circuit

board.4. Insert new transistor in the circuit board.5. Solder each transistor lead, and clip off excess lead.6. Replace heat sink.

Diode Removal/Replacement1. Remove defective diode by clipping its leads as close as

possible to diode body.2. Bend the two remaining leads perpendicular y to the circuit

board.3. Observing diode polarity, wrap each lead of the new diode

around the corresponding lead on the circuit board.4. Securely crimp each connection and solder it.5. Inspect (on the circuit board copper side) the solder joints of

the two "original" leads. If they are not shiny, reheat them and ifnecessary, apply additional solder.

Fuse and Conventional ResistorRemoval/Replacement1. Clip each fuse or resistor lead at top of the circuit board hollow

stake.2. Securely crimp the leads of replacement component around

notch at stake top.3. Solder the connections.

CAUTION: Maintain original spacing between the replacedcomponent and adjacent components and the circuit board toprevent excessive component temperatures.

Circuit Board Foil RepairExcessive heat applied to the copper foil of any printed circuitboard will weaken the adhesive that bonds the foil to the circuitboard causing the foil to separate from or "lift-off" the board. Thefollowing guidelines and procedures should be followed wheneverthis condition is encountered.

At IC ConnectionsTo repair a defective copper pattern at IC connections use thefollowing procedure to install a jumper wire on the copper patternside of the circuit board. (Use this technique only on ICconnections).

1. Carefully remove the damaged copper pattern with a sharpknife. (Remove only as much copper as absolutely necessary).

2. carefully scratch away the solder resist and acrylic coating (ifused) from the end of the remaining copper pattern.

3. Bend a small "U" in one end of a small gauge jumper wire andcarefully crimp it around the IC pin. Solder the IC connection.

4. Route the jumper wire along the path of the out-away copper

pattern and let it overlap the previously scraped end of the goodcopper pattern. Solder the overlapped area and clip off anyexcess jumper wire.

At Other ConnectionsUse the following technique to repair the defective copper patternat connections other than IC Pins. This technique involves theinstallation of a jumper wire on the component side of the circuitboard.

1. Remove the defective copper pattern with a sharp knife.Remove at least 1/4 inch of copper, to ensure that a hazardouscondition will not exist if the jumper wire opens.

2. Trace along the copper pattern from both sides of the pattern

break and locate the nearest component that is directlyconnected to the affected copper pattern.3. Connect insulated 20-gauge jumper wire from the lead of the

nearest component on one side of the pattern break to the leadof the nearest component on the other side.Carefully crimp and solder the connections.CAUTION: Be sure the insulated jumper wire is dressed so theit does not touch components or sharp edges.


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SPECIFICATIONNOTE : Specifications and others are subject to change without notice for improvement .

4. Electrical specification4.1. Model Specification

1. Application rangeThis spec sheet is applied to LCD TV used LP91J chassis.

2. SpecificationEach part is tested as below without special appointment.

1) Temperature : 255C (779F), CST : 405C2) Relative Humidity : 6510%3) Power Voltage: Standard input voltage(100-240 V~, 50/60 Hz)

* Standard Voltage of each products is marked by models.4) Specification and performance of each parts are followed

each drawing and specification by part number inaccordance with BOM.

5) The receiver must be operated for about 5 minutes prior tothe adjustment.

3. Test method1) Performance: LGE TV test method followed2) Demanded other specification

- Safety: CE, IEC specification- EMC : CE, IEC

No Item Specification Remark

1. Market NON EU

2. Broadcasting system PAL/SECAM B/G/D/K,

PAL I/II, NTSC-M

3. Available Channel BAND PAL NTSC China(DK) Australia(BG)

VHF/UHF E2-C69 2~78 C1~C62 C1~C75

CATV S21~S47 1~71 S1~S41 S2~S44

4. Receiving system Upper Heterodyne

5. Video Input PAL, SECAM, NTSC 22LK310/311 : Rear 1EA,

26/32LK310/311 : Rear 1EA, Side 1EA

6. Component Input Y/Cb/Cr, Y/ Pb/Pr Rear

7. RGB Input RGB-PC, S/W Upgrade Rear

8. HDMI Input HDMI-DTV, Only PCM MODE 26/32LK310/311 Rear 2EA

22LK310/311 Rear 1EA

9. Audio Input (4EA) PC Audio, Component, AV (2EA) L/R Input (22LK310/311: AV Audio Input 1EA)

10. RS-232C Remote control, Commercial control Rear

11. USB Input (1EA) Divx, MP3, JPEG Only Side


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- 7 - LGE Internal Use OnlyCopyright 2011 LG Electronics. Inc. All right reserved.Only for training and service purposes

5. Component Video Input (Y, P B, P R)

NoSpecification

RemarkResolution H-freq(kHz) V-freq(Hz) Pixel Clock(MHz)

1 720* 480 15.73 59.94 13.500 SDTV, DVD 480I(525I)

2 720* 480 15.75 60.00 13.514 SDTV, DVD 480I(525I)

3 720* 576 15.625 50.00 13.500 SDTV, DVD 576I(625I) 50 Hz

4 720* 480 31.47 59.94 27.000 SDTV 480P

5 720* 480 31.50 60.00 27.027 SDTV 480P

6 720* 576 31.25 50.00 27.000 SDTV 576P 50 Hz

7 1280* 720 44.96 59.94 74.176 HDTV 720P

8 1280* 720 45.00 60.00 74.250 HDTV 720P

9 1280* 720 37.50 50.00 74.25 HDTV 720P 50 Hz

10 1920* 1080 28.125 50.00 74.250 HDTV 1080I 50 Hz

11 1920* 1080 33.72 59.94 74.176 HDTV 1080I

12 1920* 1080 33.75 60.00 74.25 HDTV 1080I

13 1920* 1080 56.25 50 148.5 HDTV 1080P14 1920* 1080 67.432 59.94 148.350 HDTV 1080P

15 1920* 1080 67.5 60.00 148.5 HDTV 1080P

NoSpecification

Proposed RemarkResolution H-freq(kHz) V-freq(Hz) Pixel Clock(MHz)

1 640* 350 31.468 70.09 25.17 EGA

2 720* 400 31.469 70.09 28.32 DOS

3 640* 480 31.469 59.94 25.17 VESA( VGA)

4 800* 600 37.879 60.317 40 VESA( SVGA)

5 1024* 768 48.363 60.004 65 VESA( XGA)

6 1280* 768 47.776 59.87 79.5 VESA( WXGA)

7 1360* 768 47.72 59.799 84.75 VESA( WXGA)

6. RGB(Analog PC, RGB-DTV - NOT SUPPORT)


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7. HDMI input - PC(Spec. out but it can be shown the picture at only HDMI/DVI IN 1 via DVI to HDMI Cable)

No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remarks

1 640 x 480 31.469 59.94 25.17 VESA( VGA)

2 800 x 600 37.879 60.317 40.00 VESA( SVGA)

3 1024 x 768 48.363 60.004 65.00 VESA( XGA)

4 1280 x 768 47.776 59.87 79.5 VESA( WXGA)

5 1360 x 768 47.72 59.799 84.62 VESA( WXGA)

6 1366 x 768 47.7 60.00 84.62 WXGA

7 1280 x 1024 63.595 60.00 108.875 SXGA

8 1920 x 1080 66.647 59.988 138.625 WUXGA

8. HDMI input (DTV)

No

Specification

Proposed RemarksResolution H-freq(kHz) V-freq(Hz) Pixel Clock(MHz)

1 720 x 480 15.73 59.94 13.500 SDTV, DVD 480I(525I) Spec. out

2 720 x 480 15.75 60.00 13.514 SDTV, DVD 480I(525I) but display.

3 720 x 576 15.625 50.00 13.500 SDTV, DVD 576I(625I) 50 Hz

4 720 x 480 31.47 59.94 27 SDTV 480P

5 720 x 480 31.5 60.00 27.027 SDTV 480P

6 720 x 576 31.25 50.00 27 SDTV 576P

7 1 280 x 720 44.96 59.94 74.176 HDTV 720P

8 1280 x 720 45 60.00 74.25 HDTV 720P

9 1280 x 720 37.5 50.00 74.25 HDTV 720P

10 1920 x 1080 28.125 50.00 74.25 HDTV 1080I11 1920 x 1080 33.72 59.94 74.176 HDTV 1080I

12 1920 x 1080 33.75 60.00 74.25 HDTV 1080I

13 1920 x 1080 56.25 50.00 148.5 HDTV 1080P

14 1920 x 1080 67.432 59.94 148.350 HDTV 1080P

15 1920 x 1080 67.5 60.00 148.5 HDTV 1080P

16 1920 x 1080 27 24.00 74.25 HDTV 1080P

17 1920 x 1080 33.75 30.00 74.25 HDTV 1080P


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ADJUSTMENT INSTRUCTION1. Application Range

This specification sheet is applied to all of the LCD TV, LP91Jchassis.

2. Specification1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolationtransformer will help protect test instrument.

2) Adjustment must be done in the correct order.3) The adjustment must be performed in the circumstance of

25 C 5 C of temperature and 65 % 10 % of relativehumidity if there is no specific designation.

4) The input voltage of the receiver must keep 100-220 V,50/60 Hz.

5) Before adjustment, execute Heat-Run for 5 minutes at RFno signal.

3. Adjustment items3.1. PCB assembly adjustment items

(1) Download the MSTAR main software(IC800, Mstar ISP Utility)1) Using D/L Jig2) Using USB Memory Stick.

(2) Input Tool-Option/Area option.(3) Download the EDID

- EDID datas are automatically download when adjustingthe Tool Option2

(4) ADC Calibration - RGB / Component(4) Check SW Version.

3.2. SET assembly adjustment items(1) Input Area option(2) Adjustment of White Balance : Auto & Manual(3) Input Tool-Option/Area option(4) Intelligent Sensor Inspection Guide(5) Preset CH information(6) Factoring Option Data input

4. PCB assembly adjustment method4.1. Mstar Main S/W program download4.1.1. Using D/L Jig

(1) Preliminary steps1) Connect the download jig to D-sub(RGB) jack

(2) Download steps1) Execute ISP Tool program, the main window(Mstar ISP

utility Vx.x.x) will be opened.2) Click the Connect button and confirm Dialog Box.

3) Click the Config. button and Change speed I2C Speed

setting : 350 Khz ~ 400 Khz.

4) Read and write bin file.Click (1)Read tab, and then load download file(XXXX.bin) by clicking Read.

1

Fi

1

Filexxx.binilexxx bin


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5) Click (2)Auto tab and set as below.6) Click (3)Run.7) After downloading, you can see the (4)Pass message.

4.1.2. Using the Memory Stick* USB download : Service Mode1) Insert the USB memory stick to the USB port.2) Automatically detect the SW Version.

-> S/W download process is executed automatically.

3) Show the message Copy the file from the Memory

4) After Finished the Download, Automatically DC Off -> On

5) If the TV is turn on, check the updated SW Version and tooloption.

4.2. Input tool optionAdjust tool option refer to the BOM.- Tool Option Input : PCBA Check Process- Area Option Input : Set Assembly Process

After Input Tool Option and AC offBefore PCBA check, you have to change the Tool option andhave to AC off/on (Plug out and in)(If missing this process, set can operate abnormally)

(1) Profile : Must be changed the option value because beingdifferent with some setting value depend on modulemaker, inch and market.

(2) Equipment : adjustment remote control.

(3). Adjustment method- The input methods are same as other chassis.(Use IN-

START key on the Adjust remote control.)(If not changed the option, the input menu can differ themodel spec.)

Refer to Job Expression of each main chassis assembly(EBTxxxxxxxx) for Option valueCaution : Dont Press IN-STOP key after completing thefunction inspection.

4.3. EDID Download methodRecommend that dont connect HDMI and RGB(D-SUB) cablewhen downloading the EDID. If not possible, recommend thatconnect the MSPG equipment.There are two methods of downloading the EDID data.

4.3.1. 1st MethodEDID datas are automatically downloaded when adjusting theTool Option2.Automatically downloaded when pushing the enter key afteradjusting the tool option2.It takes about 2 seconds.

4.3.2. 2nd Method* Caution :

Must be checked that the tool option is right or not.If tool option is wrong, HDMI EDID data could not bedownloaded well.

1) Press the ADJ key2) Move to the EDID D/L and Press the right direction key( G )3) Press the right direction key( G ) at Start.4) After about a few seconds, appear OK, then complete.

4.3.3. RS-232C command Method(1) Command : AE 00 10

* CautionDont connect HDMI and RGB(D-SUB) cable whendownloading the EDID.If the cables are connected, Downloading of EDID could befailed.


Filexxx bin


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4.3.4. EDID data(1) Analog(RGB): 128bytes>

(2) HDMI 1 : 256Bytes

(3) HDMI 2 : 256Bytes

4.4. ADC Calibration4.4.1. ADC Calibration - Component (Using External pattern)

(1) Required Equipments- Remote control for adjustment- MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator

(2) Process1) Change the Input to Component1 or 2 mode.2) Input the Component 480i@60 Hz 100 % Color Bar

YPbPr signal into Component1 or 2.(MSPG-925F Model: 209 / Pattern: 65 )

3) Press ADJ key on Remote control for adjustment.4) Enter Password number. Password is 0 0 0 0.5) Select 0. ADC calibration : Component by using D / E

(CH +/-) and press ENTER( A ).6) ADC adjustment is executed automatically .7) When ADC adjustment is finished, this OSD appear.

4.4.2. ADC Calibration - RGB4.4.2.1. Method of Using External pattern

(1) Required Equipments- Remote control for adjustment- MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator

(2) Process1) Change the Input to RGB mode..2) Input the PC 1024x768@60 Hz Horizontal Color Bar

signal into RGB. (MSPG-925F Model: 60 / Pattern: 65 )

3) Press ADJ key on remote control for adjustment.4) Enter Password number. Password is 0 0 0 0.5) Select 0. ADC calibration : RGB by using D / E (CH +/-)

and press ENTER( A ).6) ADC adjustment is executed automatically .7) When ADC adjustment is finished, this OSD appear.


OK

OK

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01

10 01 15 01 03 08 46 27 78 0A D9 B0 A3 57 49 9C 25

20 11 49 4B A1 08 00 45 40 01 01 61 40 01 01 01 01

30 01 01 01 01 01 01 1B 21 50 A0 51 00 1E 30 48 88

40 35 00 BC 88 21 00 00 1C 0E 1F 00 80 51 00 1E 30

50 40 80 37 00 BC 88 21 00 00 18 00 00 00 FC 00 4C

60 47 20 54 56 0A 20 20 20 20 20 20 20 00 00 00 FD

70 00 3A 3F 1C 44 0F 00 0A 20 20 20 20 20 20 00 55

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01

10 01 15 01 03 80 46 27 78 0A D9 B0 A3 57 49 9C 25

20 11 49 4B 21 08 00 45 40 01 01 61 40 01 01 01 01

30 01 01 01 01 01 01 01 1D 00 72 51 D0 1E 20 6E 28

40 55 00 C4 8E 21 00 00 1E 1B 21 50 A0 51 00 1E 30

50 48 88 35 00 BC 77 21 00 00 1C 00 00 00 FC 00 4C

60 47 20 54 56 0A 20 20 20 20 20 20 20 00 00 00 FD

70 00 3A 3F 1C 44 0F 00 0A 20 20 20 20 20 20 01 C280 02 03 25 F1 4F 84 07 01 16 02 03 11 12 13 14 05

90 20 22 1F 10 23 09 07 07 83 01 00 00 68 03 0C 00

A0 10 00 80 1E 00 01 1D 00 80 51 D0 1C 20 40 80 35

B0 00 BC 88 21 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10

C0 3E 96 00 13 8E 21 00 00 18 8C 0A A0 14 51 F0 16

D0 00 26 7C 43 00 C4 8E 21 00 00 98 01 1D 80 18 71

E0 1C 16 20 58 2C 25 00 C4 8E 21 00 00 9E 00 00 00

F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2A

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01

10 01 15 01 03 80 46 27 78 0A D9 B0 A3 57 49 9C 25

20 11 49 4B 21 08 00 45 40 01 01 61 40 01 01 01 01

30 01 01 01 01 01 01 01 1D 00 72 51 D0 1E 20 6E 28

40 55 00 C4 8E 21 00 00 1E 1B 21 50 A0 51 00 1E 30

50 48 88 35 00 BC 77 21 00 00 1C 00 00 00 FC 00 4C

60 47 20 54 56 0A 20 20 20 20 20 20 20 00 00 00 FD

70 00 3A 3F 1C 44 0F 00 0A 20 20 20 20 20 20 01 C2

80 02 03 25 F1 4F 84 07 01 16 02 03 11 12 13 14 05

90 20 22 1F 10 23 09 07 07 83 01 00 00 68 03 0C 00

A0 20 00 80 1E 00 01 1D 00 80 51 D0 1C 20 40 80 35

B0 00 BC 88 21 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10

C0 3E 96 00 13 8E 21 00 00 18 8C 0A A0 14 51 F0 16

D0 00 26 7C 43 00 C4 8E 21 00 00 98 01 1D 80 18 71

E0 1C 16 20 58 2C 25 00 C4 8E 21 00 00 9E 00 00 00

F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1A


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4.4.2.1. Method of Using Internal pattern(1) Apply model : 22/26/32LK310/311(2) Process

1) Change the Input to RGB mode..2) Press ADJ key on remote control for adjustment.3) Enter Password number. Password is 0 0 0 0.4) Select 0. ADC calibration : RGB by using D / E (CH +/-)

and press ENTER( A ).5) ADC adjustment is executed automatically .6) When ADC adjustment is finished, this OSD appear.

* Caution : No need to connect external input cable.* Caution : Adjustment result is applied after SET Off/On.

4.5. Check SW Version(1) Method

1) Push In-star key on Adjust remote-control.2) SW Version check

Check SW VER : V3.xx

5. PCB assembly adjustment method5.1. Input Area-Option

(1) Profile : Must be changed the Area option value becausebeing different of each Countrys Language andsignal Condition.

(2) Equipment : Adjustment remote control.(3) Adjustment method

- The input methods are same as other chassis.(Use IN-START Key on the Adjust Remote control.)

Refer to Job Expression of each main chassis assembly(EBTxxxxxxxx) for Option value.

5.2. Adjustment of White Balance(For Automatic Adjustment)- Purpose : Adjust the color temperature to reduce the

deviation of the module color temperature.- Principle : To adjust the white balance without the saturation,

Fix the one of R/G/B gain to 192 (default data)and decrease the others.

- Adjustment mode : Three modes - Cool / Medium / Warm- Required Equipment

1) Remote control for adjustment2) Color Analyzer : CA100+ or CA-210 or same product -

LCD TV(ch : 9)(should be used in the calibrated ch by CS-1000)

3) Auto W/B adjustment instrument(only for Auto adjustment)

5.2.1 Adjustment of White Balance (For automatic adjustment)

* LP91J Support RS-232C & I2C Interface For ADC/DDCAdjustment.

(1) Enter the adjustment mode of DDC- Set command delay time : 50ms- Enter the DDC adjustment mode at the same time heat-

run mode when pushing the power on by power only key- Maintain the DDC adjustment mode with same condition

of Heat-run => Maintain after AC off/on in status of Heat-run pattern display)

(2) Release the DDC adjustment mode- Release the adjust mode after AC off/on or std-by off/on

in status of finishing the Hear-run mode- Release the Adjust mode when receiving the aging off

command(WB 00 FF) from adjustment equipment.- Need to transmit the aging off command to TV set after

finishing the adjustment.- Check DDC adjust mode release by exit key and release

DDC adjust mode)(3) Enter the adjust mode of white balance)

- Enter the white balance adjustment mode with agingcommand (F3, 00, 00)

(4) Release the adjust mode of white balance- Enter the white balance adjustment mode with agingcommand(F3, 00, FF)

* Luminance min value is 150cd in the Cool/Medium/Warmmode(For LCD)


OK

MODEL : 32LK310SW VER : V3.04Mode : Home Use UTT 6

ADC CAL. RGB : NGRGB: OK HDMI1 : NGCompo nent SD : OK HDMI2 : NGComponent HD : OK

Tool Option 1 816Tool Option 2 4181Area Option 40Option 1 0Option 2 0System ControlSystem Control 2Power Off HistoryDavinci/Auto Test

Area Option ETCLang. Group NTSC-ALL

MODEL : 32LK310SW VER : V3.04Mode : Home Use UTT 6

ADC CAL. RGB : NGRGB: OK HDMI1 : NGCompo nent SD : OK HDMI2 : NGComponent HD : OK

Tool Option 1 816Tool Option 2 4181Area Option 40Option 1 0Option 2 0System ControlSystem Control 2Power Off HistoryDavinci/Auto Test

Area Option ETCLang. Group NTSC-ALL


13/28

5.2.2. Adjustment of White Balance (for Manual adjustment)(1) Color analyzer(CA100+, CA210) should be used in the

calibrated ch by CS-1000(2) Operate the zero-calibration of the CA100+ or CA-210,

then stick sensor to the module when adjusting.(3) For manual adjustment, it is also possible by the following

sequence.1) Select white pattern of heat-run by pressing POWER

ON key on remote control for adjustment then operateheat run longer than 15 minutes. (If not executed thisstep, the condition for W/B may be different.)

2) Push Exit key.3) Change to the AV mode by remote control.4) Input external pattern (85% white pattern)5) Push the ADJ key -> Enter 0000 (Password)6) Select 3. W/B ADJUST7) Enter the W/B ADJUST Mode8) Stick the sensor to the center of the screen and select

each items (Red/Green/Blue Gain and Offset) usingD / E (CH +/-) key on Adjustment remote control.

9) Adjust R/G/B Gain using F / G (VOL +/-) key on

Adjustment remote control.10) Adjust three modes all (Cool/ Medium/ Warm) : Fix theone of R/G/B gain and change the others

11) When adjustment is completed, Enter COPY ALL.12) Exit adjustment mode using EXIT key on Adjustment

remote control.

* CASEFirst adjust the coordinate far away from the target value(x, y).1. x, y > target

i) Decrease the R, G.2. x, y < target

i) First decrease the B gain,ii) Decrease the one of the others.

3. x > target, y < targeti) First decrease B, so make y a little more than the target.ii) Adjust x value by decreasing the R

4. x < target, y > targeti) First decrease B, so make x a little more than the target.ii) Adjust x value by decreasing the G

(4) Standard color coordinate and temperature when using theCA100+ or CA210 equipment

- 22LK310/311(Small size inchs color coordinate is differentfrom others, so use below table.)

- To check the Coordinates of White Balance, you have tomeasure at the below conditions.Picture Mode : Select Vivid and change Dynamic Contrast :Off, Dynamic Colour : Off -> Picture Mode change ->Vivid(User)(If you miss the upper condition, the coordinates of W/B canbe lower than the spec.


CoordinateMode x y Temp uv

Cool 0.269 0.002 0.273 0.002 13,000 K 0.000

Medium 0.285 0.002 0.293 0.002 9,300 K 0.000

Warm 0.313 0.002 0.329 0.002 6,500 K 0.003

CoordinateMode x y Temp uv

Cool 0.285 0.002 0.293 0.002 9,300 K 0.000

Medium 0.295 0.002 0.305 0.002 8,000 K 0.000

Warm 0.313 0.002 0.329 0.002 6,500 K 0.003


14/28


- 14 -

TROUBLESHOOTING

No power(LED indicator off)

Check 24V, 12V, 3.5Vof Power B/D

Check short of Main B/Dor Change Power B/D

Pass

Check Output ofIC1001, IC1003, IC1007

Check P400 Connector

Change LED Assembly

: [A] PROCESS

Fail

Fail

Pass

Pass

Check LED Assembly

Change IC1002, IC1008, Q1003

Pass

Check short of IC1001,IC1003, IC1007

Fail

Re-soldering or Change defectpart of IC1001, IC1003, IC1007

Fail

No Raster [B]: Process

Check LED statusOn Display Unit Repeat A PROCESS

Pass

Fail

Check Output of IC802 Change IC802Fail

Change Inverter ConnectorOr InverterFail

Pass

Fail

Pass

Change ModuleFail

Check LVDS Cable

Pass

Check Panel Link CableOr Module

Change Panel Link CableOr Module

Check Inverter ConnectorOr Inverter

Pass


15/28


- 15 -

No Raster on PC Signal

Check Input source CableAnd Jack

Pass

Re-soldering orChange the defect part

Pass

Check the Input/OutputOf IC201 Fail

Re-soldering orChange the defect part,Check RGB EDID Data

Repeat [A], & [B] Process

Pass

Check the Input/OutputOf J202 Fail

Pass



Pass

No Raster on COMMPONENT Signal

Check Input sourceCable And Jack

Pass



Pass



Check The Input/OutputOf JK101 Fail

Pass

No Raster on HDMI Signal


Pass

Check the Input/Outputof JK301, JK302 Fail


Pass

Pass

Check the Input/Outputof IC300, IC301 Fail

Re-soldering orChange the defect partCheck HDMI EDID Data

Re-download HDCP

Pass

Pass

Check the Input/Outputof IC800 Fail




16/28


- 16 -

No Sound

Check The Input Sourse

Check The Input/OutputOf IC600

Re-soldering orChange the defect partFail

Pass

Pass

Check The Speaker Change SpeakerFail

Check The Speaker Wire

Pass

Change The Source InputFail

No Raster On AV (Video, S-Video)Signal No Signal On TV(RF) Signal

Check Input source

Cable And Jack

Pass


Pass

Check The Input/Outputof JK102


Pass

Fail

Pass


Pass



Pass

Check The Input/OutputOf TU500


Pass

Fail

Pass





17/28


- 17 -

BLOCK DIAGRAM

R G B - P C ( J K 2 0 2 )

T U N E R ( T U 5 0 0 )

C O M P O N E N T / A V 1 A u d i o o u t ( J K 1 0 2 )

A V 2

( J K 2 0 1 )

A V

_ L I N / R I N :

5 0 0 m V r m s

S P K

_ L

S P K

_ R

C O M P O N E N T

_ L / R :

5 0 0 m V r m s

A V

_ V I N :

1 V p p

N T P 3 2 0 0 L

C

O M P

_ Y / P b / P r

I R & L E D ( P 2 0 1 )

H D M I_ D A T A 0

T

U_ M

A I N

C O M P O N E N T

_ Y / P b / P r :

1 / 0 . 7

V p p

A

V_ V

I N

C

O M P

_ L I N / R I N

L_ C

H

R_ C

H

A

V_ L

I N / R I N

P C - S O U N D ( J K 2 0 3 )

I 2 S

_ M C L K

I 2 S

_ S D O

I 2 S

_ W S

I 2 S

_ S C K

T M D S

L I P S

R L

_ O N / I D I S P

_ E N

P A N E L

_ S T A T U S

E - D

I M

O P C

_ O U T

E E P R O M

( 2 4 L C 2 5 6 )

S e r

i a l F l a s h

( M X 2 5 L 6 4 )

E E P R O M

H D C P

( 2 4 W C 0 8 )

E E P

_ S C L / S D A

E E P

_ S C L / S D A

T X C E 2

T X C E 3

T X C L K E

T X C E 1

T X C E 0

T X C O 1

T X C O 3

T X C O 2

T X C O 0

T X C L K O

M_ S C L / S D A

M A I N S C L A E R

M a t r i x

( L G E 4 7 6 7 A )

( I C 8 0 0 )

E E P R O M

2 4 C 0 2

I C 3 0 2

T U 5 0 0

I C 8 0 2

I C 8 0 3

I C 8 0 1

I C 6 0 0

P 4 0 2

P 4 0 3

M_ S

C L / S D A

S

I D E

R E A R

H D M I 3

( J K 3 0 3 )

U S B

( J K 2 0 4 )

R S - 2 3 2 C ( J K 2 0 0 )

U S B ( S V C ) ( J K 2 0 5 )

H D M I 1 ( J K 3 0 1 )

H D M I 2 ( J K 3 0 2 )

E E P R O M

2 4 C 0 2

I C 3 0 1

E E P R O M

2 4 C 0 2

I C 3 0 0

E E P R O M

2 4 C 0 2

I C 3 0 0

D D C

_ S C L 1 / S D A 1

D D C

_ S C L 2 / S D A 2

D D C

_ S C L 3 / S D A 3

C o n

t r o

l l e r

S T 3 2 3 2 C D R

I C 2 0 0

R X D / T X D

E E P R O M

2 4 C 0 2

I C 2 0 1

D S U B

_ S C L / S D A

P 4 0 1

S P

I_ C Z / D O

S P I_ C L K / D I

H D M I_ D A T A 1

H D M I_ D A T A 2

U S B D N / D P

P C

_ R / G / B

P C

_ V S / H S

T X D / R X D

P C

_ A U D

_ L / R

T X C O 4

T X C E 4

F H D L V D S c o n n e c t o r

H D L V D S c o n n e c t o r

D D R 2 S D R A M

( 5 1 2 M B y t e )

I C 9 0 0

D D R 2_ C K E

D D R 2_ W E Z

D D R 2_ D Q S 0

D D R 2_ M C L K

D D R 2_ B A 0 / 1

D D R 2_ D Q S 1

D D R 2_ O D T

D D R 2_ D Q M 0 / 1

S I D E

_ V I N

S I D E

_ L I N / R I N


18/28

- 18 - LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.Only for training and service purposes

L V 1

8 0 0

1 2 0

1 2 2

5 0 0

3 0 0

5 1 0

A 2

A 2 1

A 5

A

1 0

5 4 0

5 2 1

5 3 0

4 0 0

8 1 0

9 1 0

5 5 0

9 0 0

2 0 0

EXPLODED VIEW

Many electrical and mechanical parts in this chassis have special safety-related characteristics. Theseparts are identified by in the Schematic Diagram and EXPLODED VIEW.It is essential that these special safety parts should be replaced with the same components asrecommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.Do not modify the original design without permission of manufacturer.

IMPORTANT SAFETY NOTICE


19/28

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF ISESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

CVBS_LIN

ZD100SD05

ZD103SD05

ZD105SD05

CVBS_VIN

CVBS_RIN

ZD104SD05

ZD101SD05

ZD102SD05

D10130V

D10030V

D10430V

D10530V

COMP2_Y

COMP2_PB

COMP2_PR

COMP2_L

COMP2_R

R10975

R10875

R10775

R104220K

R11812K

R11712K

R11912K

R12012K

R113

10K

R115

10K

R116

10K

R100220K

R111220K

R112220K

R11075

R114

10K

R121

75

JP102

C1045600pF50V

ZD10630V

ZD10730V

C101 10uF16V

Q105RT1C3904-T112

EBC

MUT

R124

1K

C1035600pF50V

R1220

R123

1K

Q103RT1C3904-T112

EBC

Q106RT1C3904-T112

EBC

Q104RT1C3904-T112

EBC

C102 10uF16V

R1250

MUT

JK101

PPJ238-01

NON_AUDIO_OUT

5D [GN2]O-SPRING

6D [GN2]E-LUG

4D [GN2]CONTACT

7E [BL2]E-LUG-S

5E [BL2]O-SPRING

7F [RD2]E-LUG-S

5F [RD2]O-SPRING_1

5G [WH2]O-SPRING

4H [RD2]CONTACT

5H [RD2]O-SPRING_2

6H [RD2]E-LUG

6A [YL1]E-LUG

5A [YL1]O-SPRING

4A [YL1]CONTACT

5B [WH1]O-SPRING

4C [RD1]CONTACT

5C [RD1]O-SPRING

6C [RD1]E-LUG

JK102

PPJ239-03

AUDIO_OUT

5J [GN2]O-SPRING

6J [GN2]E-LUG

4J [GN2]CONTACT

7K [BL2]E-LUG-S

5K [BL2]O-SPRING

7L [RD2]E-LUG-S

5L [RD2]O-SPRING_1

5M [WH2]O-SPRING

4N [RD2]CONTACT

5N [RD2]O-SPRING_2

6N [RD2]E-LUG

6D [WH1]E-LUG

5D [WH1]O-SPRING

7E [RD1]E-LUG-S

5E [RD1]O-SPRING_1

7F [YL1]E-LUG-S

5F [YL1]O-SPRING_1

4F [YL1]CONTACT_1

5G [WH1]O-SPRING_2

4H [RD1]CONTACT_2

5H [RD1]O-SPRING_2

6H [RD1]E-LUG

COMPONENT / AV IN / AV AUDIO OUT

POP NOISE

POP NOISE

AUDIO_OUT O

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20/28

U S

B D

OWN

STREAM


SIDE_LIN

SIDE_RIN

ZD2035.6BSIDE_AV

SIDE_VZD2025.6B

SIDE_AV

IR_OUT+3.5V_MST

TXD

R2044.7K

IC200ST3232CDR

3C1-

2V+

4C2+

1C1+

6V-

5C2-

7T2OUT

8R2IN

9 R2OUT

10 T2IN

11 T1IN

12 R1OUT

13 R1IN

14 T1OUT

15 GND

16 VCC

R2054.7K

RXD

+3.5V_MST

IC201CAT24C02WI-GT3

RGB_EEPROM_CATAL

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

D20030V

D20130V

D20630VSIDE_AV

D20530VSIDE_AV

C2030.1uF16V

C2000.1uF16V

C2010.1uF16V

C2020.1uF16V

R202

100

R203

100

R22775

SIDE_AV

R223220K

READY

R222220K

READY

R22612K

SIDE_AV

R22812K

SIDE_AV R216100

R217100

R218100

C2080.1uF50V

OCP_READYC20910uF16V

OCP_READY

L200

120OHM

OCP_READY

+5V_USB

R2091K

OCP_READY R2104.7K

OCP_READY

R237

0

Non_OCP

C21010uF6.3V

L201

500C212220uF16V

C214100uF16V

D213OCP_READY

AAC

C

R238510

OCP_READY

R224

10K

SIDE_AV

R22510K

SIDE_AV

JK200SPG09-DB-009

1

2

3

4

5

6

7

8

9

10

JK201PPJ235-01

SIDE_AV

4A [YL]O-SPRING

5A [YL]E-LUG

3A [YL]CONTACT

4B [WH]O-SPRING

3C [RD]CONTACT

4C [RD]O-SPRING

5C [RD]E-LUG

JK202

SPG09-DB-0106630TGA004Q

RED

1

GREEN

2

BLUE

3

GND_1

4

DDC_GND

5

RED_GND6

GREEN_GND7

BLUE_GND8

NC9

SYNC_GND10

GND_2

11

DDC_DATA12

H_SYNC13

V_SYNC14

DDC_CLOCK15

SHILED16

JK203PEJ027-01

6B T_TERMINA

7B B_TERMINA

5 T_SPRING

4 R_SPRING

7A B_TERMINA

6A T_TERMINA

3 E_SPRING

D20730V

USB_DN

USB_DP

ZD20430V

READYZD20530V

READY

JK205KJA-UB-0-0037

REAR_USB

1

2

3

4

5

R229

0

REAR_USB

USB_DL_P

R230

0REAR_USB

USB_DL_N

USB_DL_P

USB_DL_N

IC202AP2191SG-13

OCP_READY

3IN_2

2IN_1

4EN

1GND

5FLG

6OUT_1

7OUT_2

8NC

+3.5V_MULTI

JK204KJA-UB-4-0004

SIDE_USB

1

2

3

4

5

IC201-*1R1EX24002ASAS0A

RGB_EEPROM_RENESAS

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

USB Its possibel to 27~47ohm

** 1A Design

SIDE AV

RS-232C

PC EDID

PC SOUND

Close to SIDE_USB

PC

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+5V_HDMI_2

HPD_MST_2

TMDS2_RX2-

CECTMDS2_RXC-

TMDS2_RXC+ TMDS1_RXC-

TMDS2_RX0+

+5V_HDMI_2

HPD_MST_1

CEC

TMDS1_RX2+

TMDS2_RX1+

+5V_MULTI

+5V_HDMI_1

TMDS2_RX0-

TMDS1_RX1-

TMDS2_RX1-

TMDS1_RX2-

TMDS1_RX0-

TMDS1_RX1+

TMDS1_RX0+

TMDS2_RX2+

TMDS1_RXC+

DDC_SDA2DDC_SCL2

JP301

JP300

Q3012SC3875S

RT1C3904-T112

E

B

C

Q300

2SC3875SRT1C3904-T112

E

B

C

D301KDS184S

A 1

C

A 2

IC301CAT24C02WI-GT3

HDMI2_EEPROM_CATAL

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

IC300CAT24C02WI-GT3

HDMI1_EEPROM_CATAL

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

DDC_WP

R30110K

R303

1K

R30010K

R3021K

R305 1 0 0

R304 1 0 0

C3010.01uF

R327 100

R30910K

R31110K

JK302YKF45-7058V

14 NC

13 CEC

5 DATA1_SHIELD

20

SHIELD

12 CLK-

11 CLK_SHIELD

2 DATA2_SHIELD

19 HPD

18 +5V_POWER

10 CLK+

4 DATA1+

1 DATA2+

17 DDC/CEC_GND

9 DATA0-

8 DATA0_SHIELD

3 DATA2-

16 SDA

7 DATA0+

6 DATA1-

15 SCL

JK301YKF45-7058V

14 NC

13 CEC

5 DATA1_SHIELD

20

SHIELD

12 CLK-

11 CLK_SHIELD

2 DATA2_SHIELD

19 HPD

18 +5V_POWER

10 CLK+

4 DATA1+

1DATA2+

17 DDC/CEC_GND

9 DATA0-

8 DATA0_SHIELD

3 DATA2-

16 SDA

7 DATA0+

6DATA1-

15 SCL

R31910K

+5V_HDMI_3

+5V_MULTI

TMDS3_RX1-

DDC_SCL3

HPD_MST_3 Q3022SC3875SRT1C3904-T112

E

B

C

TMDS3_RX0+

+5V_HDMI_3

R312

10K

DDC_WP

R318 100

TMDS3_RXC+

JK303KJA-ET-0-0032

14 NC

13 CEC

5 DATA1_SHIELD

20

JACK_GND

12 CLK-

11 CLK_SHIELD

2 DATA2_SHIELD

19 HPD

18 +5V_POWER

10 CLK+

4 DATA1+

1 DATA2+

17 DDC/CEC_GND

9 DATA0-

8 DATA0_SHIELD

3 DATA2-

16 SDA

7 DATA0+

6 DATA1-

15 SCL JP305

TMDS3_RXC-

DDC_SDA3

R32010K

R314

1K

TMDS3_RX1+

CEC

TMDS3_RX2+

R 3 17 1 00

JP304

C3000.01uF25V

TMDS3_RX2-

R 3 29 1 00

IC302CAT24C02WI-GT3

HDMI3_EEPROM_CATAL

3A2

2A1

4VSS

1A0

5 SDA

6 SCL

7 WP

8 VCC

D302KDS184S

A 1

C

A 2

TMDS3_RX0-


HDMI2_EEPROM_RENESAS

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

IC3R1EX2

HDMI1_E

3A2

2A1

4VSS

1A0


HDMI3_EEPROM_RENESAS

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

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23/28


MAIN_SIF

0.01uFC501

50V

M_SDA

C50227pF50V

+5V_TUNER

TV_MAIN

M_SCL

+5V_TUNER

C50450V

READY

C50027pF50V

L502READY

10uH

C50782pF50V

READY

C50810uF16V

L500

120-ohm

READY

Q502ISA1530AC1

E

BC

R5024.7K

R506220

R507220

C505100uF16V

READY

C506100uF16V

READY

R505

47

R504

47

C5030.1uF50V

R500

0

R5010

TU500TAFJ-Z001D

PAL_TUNER

5 MOPLL_AS

11 VIDEO

2 NC_2

10 NC_4

4 RF_AGC

1 NC_1

9 SIF

8 NC_3

3 +B[5V]

7 SDA

6 SCL

12 GND

13

SHIELD

TU500-*1

TAFJ-H001F

5MOPL

11VIDEO

2NC_2

10NC_4

4RF_AG

1NC_1

9SIF

8NC_3

3+B[5V

7SDA

6SCL

12GND

13

SHIELD

Near the pin

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THERMAL


C6440.1uF

C6370.1uF

M_

S D A

C6061000pF

C61622000pF

C623 22000pF+1.8V_DVDD

C6511000pF50V

C6320.47uF

MULTI_PW_SW

C6050.1uF

+1.8V_DVDD

C6150.1uF50V

C6290.1uF

+3.3V_MULTI_MST

C6430.1uF

C6170.1uF50V

C6020.1uF

C6470.01uF

SPK_R+

M_

S C L

C6100.1uF

C611 2200 0pF

SPK_L+

+1.8V_AVDD

SPK_L-

C6690.1uF

+16V_NTP

+16V_NTP

SPK_R-

C601100pF

C62522000pF

+1.8V_AVDD

C6720.01uF

C6480.01uF

C6031000pF

SW_RESET

C6730.47uF

C6710.01uF

C6260.1uF

C6130.01uF50V

+1.8V_DVDD

+1.8V_AVDD

+1.8V

I2S_MCLK

I 2 S

_ S D O

I 2 S

_ W S

I 2 S

_ S C K

C619390pF

C621390pF

C630390pF

C634390pF

C6081uF

C6181uF

C6241uF

C6141uF

C6070.1uF50V

C64210uF35V

C60010uF16V

C60410uF16V

C60910uF 16V

R6043.3

R60812

R61112

R61012

R63812

R6634.7K

R6234.7K

R6263.3

R625

3.3

R601 100

R6003.3K

R 6 7 6

1 0 0

R 6 7 7

1 0 0

R 6 7 8

1 0 0

R602100

R603100

R65812

R65312

R62112

R65412

R6284.7K

R6674.7K

R6713.3

R6353.3

L605

MLB-201209-0120P-N20LCML00003B

120-ohm

L606

MLB-201209-0120P-N2

0LCML00003B

120-ohm

C63833pF

50VREADY

C63933pF

50VREADY

+3.3V_MST

R63010K

Q603RT1C3904-T112E

BC

R 6 29 1 0 K

MULTI_PW_SW R627

0

READY

R624

0

READY

L608MLB-201209-0120P-N2

L609

MLB-201209-0120P-N2

L610MLB-201209-0120P-N2

L611

MLB-201209-0120P-N2

C61268uF35V

C64068uF35V

L607AD-9060

EAP61008401

2S

1S 1F

2F

L603AD-9060

EAP61008401

2S

1S 1F

2F

R63147K

READY

R673 0

IC600NTP-3200L

1BST1A

2VDR1A

3RESET

4AD

5DVSS_1

6VSS_IO

7CLK_I

8VDD_IO

9DGND_PLL

10AGND_PLL

11LF

12AVDD_PLL

13DVDD_PLL

14TEST0/GND

1 5

D V S S

_ 2

1 6

D V D D

1 7

S D A T A

1 8

W C K

1 9

B C K

2 0

S D A

2 1

S C L

2 2

M O N I T O R

_ 0

2 3

M O N I T O R

_ 1

2 4

M O N I T O R

_ 2

2 5

F A U L T

2 6

V D R 2 B

2 7

B S T 2 B

2 8

P G N D 2 B

_ 1

29 PGND2B_2

30 OUT2B_1

31 OUT2B_2

32 PVDD2B_1

33 PVDD2B_2

34 PVDD2A_1

35 PVDD2A_2

36 OUT2A_1

37 OUT2A_2

38 PGND2A_1

39 PGND2A_2

40 BST2A

41 VDR2A

42 NC

4 3

V D R 1 B

4 4

B S T 1 B

4 5

P G N D 1 B

_ 1

4 6

P G N D 1 B

_ 2

4 7

O U T 1 B

_ 1

4 8

O U T 1 B

_ 2

4 9

P V D D 1 B

_ 1

5 0

P V D D 1 B

_ 2

5 1

P V D D 1 A

_ 1

5 2

P V D D 1 A

_ 2

5 3

O U T 1 A

_ 1

5 4

O U T 1 A

_ 2

5 5

P G N D 1 A

_ 1

5 6

P G N D 1 A

_ 2

57

[ E P ] G N D

R6054.7K

MNT_LOUT

+12V_AUDIO

R6164.7K

C65

Q601RT1C3904-T112

EBC

C65

MNT_ROUT

MNT_L_

C6310.1uF16V

C6200.1uF16V

Q602RT1C3904-T112

EBC

MNT_R_

+12V_AUDIO

Main AMP

AMP :G

LP91J

EAX64045802

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DDR2_A[0]

DDR2_A[12]

DDR2_A[11]

DDR2_A[1]

DDR2_A[2]

DDR2_A[3]

DDR2_A[4]

DDR2_A[5]

DDR2_A[6]

DDR2_A[7]

DDR2_A[8]

DDR2_A[9]

DDR2_A[10]

DDR2_D[0-15]

DDR2_D[0]

DDR2_D[1]

DDR2_D[2]

DDR2_D[3]

DDR2_D[4]

DDR2_D[5]

DDR2_D[6]

DDR2_D[7]

DDR2_D[8]

DDR2_D[9]

DDR2_D[10]

DDR2_D[11]

DDR2_D[12]

DDR2_D[13]

DDR2_D[14]

DDR2_D[15]

+1.8V_DDR

DDR2_A[0-12]

DDR2_BA0DDR2_BA1

DDR2_MCLKDDR2_MCLKZDDR2_CKE

DDR2_ODT

DDR2_RASZDDR2_CASZDDR2_WEZ

DDR2_DQS0PDDR2_DQS1P

DDR2_DQM0DDR2_DQM1

DDR2_DQS0MDDR2_DQS1M

+1.8V_DDR

+1.8V_DDR

DDR2_D[0-15]

V_REF

R900

56R901

56

R902

56R90356

R904

56R90556

+1.8V_DDR

R906150

READY

V_REF

C91910uF10V

R 9 0 7 1

K

R 9 0 8 1

K C9051000pF

C9180.1uF

C9202.2uF16V

C9040.01uF

C9080.01uF

C9070.01uF

C9060.01uF

C9030.01uF

C9020.01uF

C9100.01uF

C9010.01uF

C9090.01uF

C9000.01uF50V

IC900

K4T51163QI-HCF7

J2VREF

J8CK

H2 VSSQ_2

B7UDQS

N8A4

P8A8

L1NC_4

L2BA0

R8NC_3

K7RAS

F8 VSSQ_3

F3LDM

P3A9

M3A1

N3A5

K8CK

R3NC_5

L3BA1

J7VSSDL

L7CAS

F2 VSSQ_4

B3UDM

M2A10/AP

K2CKE

R7NC_6

M7A2

N7A6

M8A0

J1VDDL

K3WE

E8LDQS

P7A11

K9ODT

A2NC_1

N2A3

P2A7

H8 VSSQ_1

F7LDQS

A8UDQS

R2A12

L8CS

E2NC_2

E7 VSSQ_5D8 VSSQ_6D2 VSSQ_7A7 VSSQ_8B8 VSSQ_9B2 VSSQ_10

P9 VSS_1N1 VSS_2J3 VSS_3E3 VSS_4A3 VSS_5

G9 VDDQ_1G7 VDDQ_2G3 VDDQ_3G1 VDDQ_4E9 VDDQ_5C9 VDDQ_6C7 VDDQ_7C3 VDDQ_8C1 VDDQ_9A9 VDDQ_10

R1 VDD_1M9 VDD_2J9 VDD_3E1 VDD_4A1 VDD_5

B9 DQ15B1 DQ14D9 DQ13D1 DQ12D3 DQ11D7 DQ10C2 DQ9C8 DQ8F9 DQ7F1 DQ6H9 DQ5H1 DQ4H3 DQ3H7 DQ2G2 DQ1G8 DQ0

DDR2

DDR2 MEMORY

Close to DDR2 IC

Close to DDR2 IC

LP91J

EAX64045802

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LG 26LK310 (Chassis LP91J) Manual de Servicio LCD

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Transcript of LG 26LK310 (Chassis LP91J) Manual de Servicio LCD