LG Electronics 42LT640H-ZA HDMI1, For CEC, HDMI2, Sidehdmi, Emea Interactive, GP4MSTAR, 2011 . 08

Page 25
HDMI_1

HDMI_1

5V_HDMI_1

 

5V_DET_HDMI_1

 

 

R806

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SHIELD

R896

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

1K

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C802

 

Q802

B

R830

HPD1

 

 

19

 

 

0

. 1 u F

MMBT3904(NXP)

 

 

 

 

R804

16V

 

10K

 

 

 

 

 

 

 

 

 

 

18

1

.8K

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R802

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

 

3.3K

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

DDC_SDA_1

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

DDC_SCL_1

 

 

 

 

 

 

R805

0 OPT

 

 

 

 

 

 

 

 

 

 

 

 

HDMI_ARC

 

 

14

 

 

 

 

 

 

R809

0

 

 

 

 

 

 

R824

0

IR_OUT_HDMI1

 

 

 

 

 

 

 

 

 

 

EAG59023302

 

 

 

 

 

 

 

HDMI_CEC

 

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

CK-_HDMI1

HDMI 1

 

 

 

 

 

 

 

 

 

11

CK+

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CK+_HDMI1

 

D0-

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D0-_HDMI1

 

 

 

 

 

 

 

 

 

 

 

 

 

8

D0_GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

D0+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D0+_HDMI1

 

 

 

 

 

 

 

 

 

 

 

 

 

6

D1-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D1-_HDMI1

 

 

 

 

 

 

 

 

 

 

 

 

 

5

D1_GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

D1+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D1+_HDMI1

 

 

 

 

 

 

 

 

 

 

 

 

 

3

D2-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D2-_HDMI1

 

 

 

 

 

 

 

 

 

 

 

 

 

2

D2_GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

D2+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D2+_HDMI1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPT

 

 

 

 

 

 

 

 

 

 

 

D802

 

 

 

 

 

 

 

 

JK802

 

 

5.6V

 

 

 

 

 

 

 

 

 

 

200pF

 

 

 

 

 

 

For CEC

 

OPT

 

R854

 

68K

 

R855

OPT

100

D804

 

HDMI_CEC

 

 

S B D

 

D803

AVRL161A1R1NT

 

OPT

 

Q806

OPT

BSS83

 

G

 

 

 

R812

 

 

 

68K

 

 

 

OPT

 

 

 

R813

 

 

 

100

 

 

 

D805

 

 

 

S B D

 

D806

AVRL161A1R1NT

 

Q805

OPT

BSS83

 

G

 

+3.5V_ST

OPT

R856 R857

10K 68K OPT

For CECHDMI_2 CEC_REMOTE_S7

OPT C805 0 . 1 u F 16V

SIDE_HDMI CEC_ON/OFF

 

+3.5V_ST

R814

R816

10K

68K

HDMIManual background CEC_REMOTE_NEC

C804

0 . 1 u F

16V

5V_HDMI_1

+5V_Normal

A1

A2

HDMI_1

 

 

MMBD6100

 

 

D821

 

C

 

HDMI_1

HDMI_1

R884

R888

2.7K

2.7K

Manual backgroundDDC_SCL_1

DDC_SDA_1

5V_HDMI_2 +5V_Normal

A1

A2

HDMI_2

 

 

MMBD6100

 

 

D822

 

C

 

HDMI_2

HDMI_2

R885

R889

2.7K

2.7K

 

 

DDC_SCL_2

 

 

DDC_SDA_2

 

 

5V_HDMI_4 +5V_Normal

A1 HDMIC SIDE

MMBD6100

D824

A2

HDMI_SIDEHDMI_SIDE

R887

R891

2.7K

2.7K

HDMI_2

 

 

 

 

 

 

 

 

 

5V_HDMI_2

5V_DET_HDMI_2

 

R807

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10K

 

 

 

SHIELD

 

R895

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

1K

 

 

C

 

 

 

 

 

 

 

R828

 

 

 

 

 

 

 

 

 

 

 

 

C801

Q801

B

10K

 

 

 

 

 

HPD2

 

 

19

 

 

0 . 1 u F MMBT3904(NXP)

 

 

 

 

R803

 

 

 

 

 

 

16V

 

E

 

 

 

18

 

1.8K

 

 

 

 

 

 

 

 

 

 

 

 

17

 

 

R801

 

 

 

 

 

 

 

3.3K

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

DDC_SDA_2

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

DDC_SCL_2

 

 

 

 

R810

0

 

 

 

 

 

 

 

 

IR_OUT_HDMI2

 

 

14

 

 

 

 

 

 

 

 

 

R815

0

 

 

 

 

 

 

 

 

HDMI_CEC

 

EAG59023302

13

 

 

 

 

 

 

 

 

 

 

 

 

HDMI 2

12

 

 

 

 

 

CK-_HDMI2

 

 

 

 

 

 

11

CK+

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

CK+_HDMI2

 

 

 

 

 

 

 

D0-

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

D0-_HDMI2

 

 

8

D0_GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

D0+

 

 

 

 

 

 

 

 

 

 

 

 

D0+_HDMI2

 

 

 

 

 

 

 

 

 

 

6

D1-

 

 

 

 

 

 

 

 

 

 

 

 

D1-_HDMI2

 

 

5

D1_GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

D1+

 

 

 

 

 

 

 

 

 

 

 

 

D1+_HDMI2

 

 

 

 

 

 

 

 

 

 

3

D2-

 

 

 

 

 

 

 

 

 

 

 

 

D2-_HDMI2

 

 

2

D2_GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

D2+

 

 

 

 

 

 

 

 

 

 

 

 

D2+_HDMI2

 

 

 

 

 

 

 

 

 

 

 

 

 

OPT

 

 

 

 

 

 

 

 

D801

 

 

 

 

 

 

 

 

5.6V

 

 

 

 

 

JK801

 

 

200pF

 

 

 

SIDE_HDMI

 

 

 

5V_HDMI_4

 

5V_DET_HDMI_4

 

 

 

 

 

 

 

 

 

 

 

 

R808

 

 

 

 

 

 

 

 

 

 

10K

 

 

 

 

BODY_SHIELD

R897

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

1K

 

 

 

 

R862

 

 

20

 

 

 

 

 

 

 

 

 

 

C803

 

Q803

 

B

10K

 

 

 

 

 

 

 

HPD4

 

 

 

 

 

MMBT3904(NXP)

 

 

 

 

19

 

 

0 . 1 u F

 

 

 

 

 

 

R837

16V

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

18

 

1.8K

R835

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

 

3.3K

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

DDC_SDA_4

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

DDC_SCL_4

 

 

 

 

 

R811

0

 

 

 

 

 

 

 

 

 

 

 

IR_OUT_SIDE_HDMI

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

R841

0

 

 

 

 

 

 

 

 

 

 

 

HDMI_CEC

 

EAG62611201

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

CK-_HDMI4

HDMI SIDE

 

 

 

 

 

 

 

 

11

CK+

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CK+_HDMI4

9

D0-

 

 

 

 

 

 

 

D0_GND

 

 

 

 

 

 

D0-_HDMI4

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

D0+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D0+_HDMI4

 

 

6

D1-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D1-_HDMI4

 

 

 

 

 

 

 

 

 

 

 

 

5

D1_GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

D1+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D1+_HDMI4

 

 

 

 

 

 

 

 

 

 

 

 

3

D2-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D2-_HDMI4

 

 

 

 

 

 

 

 

 

 

 

 

2

D2_GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

D2+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D2+_HDMI4

 

 

 

 

 

OPT

 

 

 

 

 

 

 

 

 

 

D811

 

 

 

 

 

 

 

 

 

 

5.6V

 

 

 

 

 

 

 

JK803

 

 

200pF

 

 

 

 

 

Manual background DDC_SCL_4

Manual backgroundDDC_SDA_4

THE Manual backgroundSYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

EMEA INTERACTIVE

 

 

 

 

 

 

 

GP4_MSTAR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2011 . 08 . 21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HDMI

 

 

 

 

 

 

 

 

 

 

 

 

8

2 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright © 2012 LG Electronics. Inc. All rights reserved.

LGE Internal Use Only

Only for training and service purposes

 

Image 25
Contents http//aic.lgservice.com READ THE SAFETY PRECAUTIONS IN THIS MANUALhttp//eic.lgservice.com http//biz.lgservice.comSAFETY PRECAUTIONS CONTENTSSERVICING PRECAUTIONS SPECIFICATIONIMPORTANT SAFETY NOTICE SAFETY PRECAUTIONSElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSReplacement IC Remove/ReplacementSmall-Signal Discrete Transistor Removal/Replacement Removal4. Model General Specification SPECIFICATION1. Application range 3. Test methodRGB-PC RGB InputAnalogD-SUB 15PIN HDMI1-DTV/DVI5.1. Component Input Y, CB/PB, CR/PR 5. Video resolutions 2D5.2. RGB Input PC PCDVI 5.3. HDMI InputPC/DTVBoot file Download ADJUSTMENT INSTRUCTIONAfter downloading, have to adjust Tool Option again 1. Application Range4.1. Adjustment Preparation 4. Total Assembly line process3.1. ADC Process 3.2. Function Check4.2. DDC EDID Write RGB 128Byte 4.4. EDID data4.3 DDC EDID Write HDMI 256Byte Manual W/B process using adjust Remote control4.6. HI-POT Test 4.5. Outgoing condition Configuration4.6.1. HI-POT auto-check preparation 4.6.2. HI-POT auto-check5. Model name & Serial number D/L 5.1. Signal Table5.2. Comand Set 5.3. Method & notice6. CI+ Key Download method 6.1. Download ProcedureCI+ Key Value S7LR BLOCK DIAGRAMAll rights reserved HalfEXPLODED VIEW GP4MSTAR EMEA INTERACTIVE2011 . 08 Copyright 2012 LG Electronics. Inc. All rights reservedOLED THERMAL Step Up regulator 3 . 3V to 5VMAX 250mAPowerDET FROM LIPS & POWER B/D+1.5VDDR +3.3VNormalNTP-7500L IC501CONTROL IR & LED 30Pin LVDS Connector For HD 60HzNormal 51Pin LVDS ConnectorFor FHD 60/120Hz MIRROR Pol - changeFor CEC HDMI1HDMI2 SIDEHDMI0 . 3 3 u F USBDIODES RGB/SPDIF/PC/HP/USBS7LRDIVXMS10 MX25L8006EM2I-12G IC1300IC1300-*1 W25Q80BVSSIGSI2176ATSC1INPUTH P4RGLOBALTUNERBLOCKSI2156DVB1INPUTH LGDT1001 IC1501PILG1001 A2 Full Scart/ Comp1 EXTSPK AMP UART/I2C SWITCHEXTSPKCONTROL/DEBUG EXTSPK OUTREAL TIME CLOCKRTC EXTERNALPOWER OUT 5V/12VOption name of this page CI SLOT because of Hong Kong CI RegionSMD GASKET Page 1. Trouble Shooting Contents of LCD TV Standard Repair ProcessMain B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable A. Video errorLCD TV A2 Check Power Board 24V,12V,3.5V outputCheck various voltages of PowerNo Video BoardBy using Digital signal level meter A. Picture ProblemBy using Diagnostics menu on OSD Menu→Setup→Manual Tuning Signal strength Normal over 30% Signal Quality Normal over 30%※ Check Check color by input -External Input COMPONENT -RGBand replace Link CableExternal device screen error-Color error Connect other external device and cableVertical/Horizontal bar, residual image, light spot Check color condition by input -External Input -Component RGBStand-By Red Operating white B. Power errorCheck Power LED Check Power On ‘”High”If Power Off mode is not displayed Check Power B/D voltage Check Power Off Starusinstart menuPOWEROFFABNORMAL1 POWEROFFCPUABNORMALPower Board C. Audio errorCheck user menu Speaker off Check audio B+Check audio B+ Voltage 20V or In case of External Input signal error Check and fix external device1. Remote controlR/C operating error D. General Function ProblemCheck & Repair Cable connection Connector solder Output signalCheck input signal D. Function errorY Check technical Signal information input? - Fix information S/W VersionIdentify nose type E. NoiseF. Exterior defect MENU -Æ red keycustomer support -Æ signal test -Æ select channel A. Video errorVideo error, video lag/stopWhen the signal is strong, use the attenuator -10dB, -15dB, -20dB etc Standard Repair Process Detail Technical ManualPress the IN-START with the remote controller for adjustment 1. Checking method for remote controller for adjustmentALL MODELS VersionYou can view 6 types of patterns using the ADJ Key A. Video errorColor errorAppendix Exchange T-Con Board Appendix Exchange T-Con Board No Light Appendix Exchange PSULED driverDim Light No picture/Sound Ok A - 3/5Un-repairable Cases In this case please exchange the module Appendix Exchange the ModulePanel Mura, Light leakage Press damageUn-repairable Cases In this case please exchange the module 2. Check the entry into adjustment item 1. Press the IN-START button of the remote controller for adjustmentB. Power error Off when on, off whiling viewing Entry method1. Press the MENU button on the remote controller C. Audio errorNo audio/Normal videoChecking method 2. Select the AUDIO function of the Menu