LG Electronics 42CS669C-ZD service manual AV Video, Component Video, No No No, ok No

Page 16
4. AV Video

4. AV Video

Check input signal format.

Is it supported?

ok

Check AV Cable for damage for damage or open conductor.

ok

Check JK1604

CVBS Signal Line

R246.

ok

Check CVBS_DET Signal.

ok

Check Mstar LVDS Output.

No

No

No

Replace Jack.

Replace R1666.

Replace Mstar(IC101) or Main Board.

5. Component Video

Check input signal format.

Is it supported?

ok

Check Component Cable

for damage or open conductor.

ok

No

Check JK1601 or 1603

Y/PB/PR signal Line.

ok

No

Check COMP_DET Signal.

ok

No

Check Mstar LVDS Output.

Replace Jack.

Replace R1615.

Replace Mstar(IC101) or Main Board.

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

- 16 -

LGE Internal Use Only

Only for training and service purposes

 

 

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Contents CHASSIS LD0AW SERVICE MANUALREAD THE SAFETY PRECAUTIONS IN THIS MANUAL http//aic.lgservice.comCONTENTS CONTENTSPRODUCT SAFETY SPECIFICATIONSAFETY PRECAUTIONS IMPORTANT SAFETY NOTICEGeneral Guidance Before returning the receiver to the customerSERVICING PRECAUTIONS Electrostatically Sensitive ES DevicesIC Remove/Replacement ReplacementSmall-Signal Discrete Transistor Removal/Replacement Power Output, Transistor Device Removal/ReplacementSPECIFICATION 4. Model General Specification1. Application range 3. Test method5. Component Video Input Y, CB/PB, CR/PR 6. RGB Input PC1 DTV Mode 7. HDMI Input PC/DTV2 PC Mode ADJUSTMENT INSTRUCTION 1. Application Range2. Designation 3. Main PCB check process3.1. ADC Process 3.2. EDID Download3.3. EDID data After downloading, have to adjust Tool Option again4. Total Assembly line process 4.1. Adjustment Preparation3.4. Function Check Manual W/B process using adjusts Remote control4.3. Outgoing condition Configuration 6.1. Signal TABLE6.2. Command Set 5. GND and HI-POT Test7. CI+ Key Download method 1. Power-up boot check TROUBLESHOOTINGNo No No No No 3. Analog TV Video 2. Digital TV VideoNo No No No 4. AV Video 5. Component VideoNo No No ok No6. SCART Video 7. RGB Video8. HDMI Video Check HDMI Cable conductors for damage or open conductor9. All Source Audio 10. Digital TV Audio 11. Analog TV Audio13. Component/ SCART Audio 12. AV Audio14. RGB Audio DIAGRAM BLOCKSide RearEXPLODED VIEW Only for training and service purposes GP3S7LRCopyright 2012 LG Electronics. Inc. All rights reserved LGE Internal Use OnlyNormal Power VDDCNormal DDR3FROM LIPS & POWER B/D PowerDET+3.3VNormal +1.5VDDRCONTROL IR & LED USBDIODES IC1450HDMI EEPROM HDMI1SIDEHDMI GP3S7LR20110324 HDMI8New Item Development RGB/SPDIF/PC/HPRS232C GP3S7LR RS232C9PINOnly for training and service purposes GP3S7LR DDR256 DDR3 1.5V By CAP - Place these Caps near MemoryIC1201-*1 K4B1G1646G-BCH9GP3S7LR SFLASH IC1401-*1GP3S7LR 20110511TUNERL GP4RGLOBALTUNERBLOCKGP3S7LR NTP7400 IC501 NTP-7400LFull Scart/ Comp1 GP3S7LR REAR JACKSIDE COMPONENT PHONE JACK New Item Developmen CI Region Option name of this page CISLOT because of Hong KongGP3S7LR PCMCI 10067972-0500LFGASKET SMD GASGP3 S7LR 20110324