LG Electronics 42CS669C-ZD service manual

Contents SERVICE MANUAL CHASSIS LD0AWREAD THE SAFETY PRECAUTIONS IN THIS MANUAL http//aic.lgservice.comCONTENTS CONTENTSPRODUCT SAFETY SPECIFICATIONIMPORTANT SAFETY NOTICE SAFETY PRECAUTIONSGeneral Guidance Before returning the receiver to the customerElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSReplacement IC Remove/ReplacementSmall-Signal Discrete Transistor Removal/Replacement Power Output, Transistor Device Removal/Replacement4. Model General Specification SPECIFICATION1. Application range 3. Test method6. RGB Input PC 5. Component Video Input Y, CB/PB, CR/PR2 PC Mode 7. HDMI Input PC/DTV1 DTV Mode 1. Application Range ADJUSTMENT INSTRUCTION2. Designation 3. Main PCB check process3.2. EDID Download 3.1. ADC Process3.3. EDID data After downloading, have to adjust Tool Option again4.1. Adjustment Preparation 4. Total Assembly line process3.4. Function Check Manual W/B process using adjusts Remote control6.1. Signal TABLE 4.3. Outgoing condition Configuration6.2. Command Set 5. GND and HI-POT Test7. CI+ Key Download method No No No No No TROUBLESHOOTING1. Power-up boot check No No No No 2. Digital TV Video3. Analog TV Video 5. Component Video 4. AV VideoNo No No ok 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 Audio14. RGB Audio 12. AV Audio13. Component/ SCART Audio BLOCK DIAGRAMSide RearEXPLODED VIEW GP3S7LR Only for training and service purposesCopyright 2012 LG Electronics. Inc. All rights reserved LGE Internal Use OnlyVDDC Normal PowerNormal DDR3PowerDET FROM LIPS & POWER B/D+3.3VNormal +1.5VDDRCONTROL IR & LED IC1450 USBDIODESHDMI1 HDMI EEPROMSIDEHDMI GP3S7LR20110324 HDMI8RGB/SPDIF/PC/HP New Item DevelopmentGP3S7LR RS232C9PIN RS232CTHE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES DDR3 1.5V By CAP - Place these Caps near Memory GP3S7LR DDR256IC1201-*1 K4B1G1646G-BCH9IC1401-*1 GP3S7LR SFLASH20110511 GP3S7LRTUNERL GP4RGLOBALTUNERBLOCKIC501 NTP-7400L GP3S7LR NTP7400GP3S7LR REAR JACK Full Scart/ Comp1SIDE COMPONENT PHONE JACK New Item Developmen Option name of this page CISLOT because of Hong Kong CI RegionGP3S7LR PCMCI 10067972-0500LFSMD GAS GASKETGP3 S7LR 20110324