LG Electronics 42CS560-ZD service manual Digital TV Video, Analog TV Video, No No No No

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2. Digital TV Video

Check RF Cable & Signal

Check Tuner 3.3V Power

L3703

Check Tuner 1.8V Power

IC3703 2 pin : 1.8V

Check IF_P/N Signal

TU3700 10/11 Pin

Check Mstar LVDS Output.

No

Replace L3703.

Replace IC3703.

Bad Tuner. Replace Tuner.

Replace Mstar(IC101) or Main Board.

3. Analog TV Video

Check RF Cable & Signal.

Check Tuner 3.3V Power.

L3703

Check Tuner 1.8V Power.

IC3703 2 pin : 1.8V

Check CVBS Signal.

TU3700 8 Pin

Check Mstar LVDS Output.

Replace L3703.

Replace IC3703.

Bad Tuner. Replace Tuner.

Replace Mstar(IC101) or Main Board.

Copyright ©2011 LG Electronics. Inc. All right reserved.	- 15 -	LGE Internal Use Only
Only for training and service purposes

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Contents http//eic.lgservice.com CHASSIS LD01MREAD THE SAFETY PRECAUTIONS IN THIS MANUAL http//aic.lgservice.comSPECIFICATION CONTENTSCONTENTS PRODUCT SAFETYBefore returning the receiver to the customer SAFETY PRECAUTIONSIMPORTANT SAFETY NOTICE General GuidanceElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSPower Output, Transistor Device Removal/Replacement IC Remove/ReplacementReplacement Small-Signal Discrete Transistor Removal/Replacement3. Test method SPECIFICATION4. Model General Specification 1. Application range6. RGB Input PC 5. Component Video Input Y, CB/PB, CR/PR7. HDMI Input PC/DTV 1 DTV Mode2 PC Mode 3. Main PCB check process ADJUSTMENT INSTRUCTION1. Application Range 2. DesignationAfter downloading, have to adjust Tool Option again 3.1. ADC Process3.2. EDID Download 3.3. EDID dataManual W/B process using adjusts Remote control 4. Total Assembly line process4.1. Adjustment Preparation 3.4. Function Check5. GND and HI-POT Test 4.3. Outgoing condition Configuration6.1. Signal TABLE 6.2. Command Set7. CI+ Key Download method TROUBLESHOOTING 1. Power-up boot checkNo No No No No 2. Digital TV Video 3. Analog TV VideoNo No No No ok No 4. AV Video5. Component Video No No No7. RGB Video 6. SCART VideoCheck HDMI Cable conductors for damage or open conductor 8. HDMI Video9. All Source Audio 11. Analog TV Audio 10. Digital TV Audio12. AV Audio 13. Component/ SCART Audio14. RGB Audio Option DIAGRAMSide RearEXPLODED VIEW LGE Internal Use Only Only for training and service purposesGP3S7LR Copyright 2012 LG Electronics. Inc. All rights reservedDDR3 Normal PowerVDDC Normal+1.5VDDR FROM LIPS & POWER B/DPowerDET +3.3VNormalCONTROL IR & LED IC1450 USBDIODESGP3S7LR20110324 HDMI8 HDMI EEPROMHDMI1 SIDEHDMIRGB/SPDIF/PC/HP New Item DevelopmentGP3S7LR RS232C9PIN RS232CFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS K4B1G1646G-BCH9 GP3S7LR DDR256DDR3 1.5V By CAP - Place these Caps near Memory IC1201-*1IC1401-*1 GP3S7LR SFLASHGP4RGLOBALTUNERBLOCK GP3S7LR20110511 TUNERLIC501 NTP-7400L GP3S7LR NTP7400GP3S7LR REAR JACK Full Scart/ Comp1SIDE COMPONENT PHONE JACK New Item Developmen 10067972-0500LF CI RegionOption name of this page CISLOT because of Hong Kong GP3S7LR PCMCI20110324 GASKETSMD GAS GP3 S7LR