LCD TV SERVICE MANUAL - diagramas.diagram...

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3. No RasterSy mptom1) No OSD and image occur at screen.2) It maintains the condition where the front LED is greenStart checkDoes minutedischarge atModule?NO Is theinverter/ VaV son?YE SYE SCheck the PDP/<strong>LCD</strong> ModuleIs the link cablenormal?NOReconnect the link cablein P600YE SIs the IC700’soutput normal?NOReplace the VSCNOIs output the normality Low/HighVoltage except Stand-by 5V?Replacethe power boardCopyright © 2007 LG Electronics. Inc. All right reserved.Only for training and service purposes- 16 -LGE Internal Use Only
4. In case of becomes unusual display from RF mode(Main)Is normal video outputof the Tuner?(Check TU200_Pin14)NO YE S YESIs the Tuner Cableconnected well?Is normal the Input voltage ?(Check Pin8, Pin6)Is normal the I2C communication ?(Check Pin5, Pin4)NO NO NOYE SCable inserts well.Check the powerChange the TunerAIs normal videooutput of CXA2069Q?(Check R324, In case of S-Videocheck R324, R328)NOIs normal the Input voltage ?(Check L308)YE SIs normal theI2C communication ?(Check R309, R310)NO NOYE SCheck the power( Check L1004)Change the IC(IC300)Is the LVDS Cableconnected well?NOCable inserts wellYE SChange the IC(IC700)Copyright © 2007 LG Electronics. Inc. All right reserved.Only for training and service purposes- 17 -LGE Internal Use Only
Page 1: Internal Use Onlywebsite:http://biz
Page 4: CAUTION: Before servicing receivers
Page 8 and 9: 7. Component Video Input (Y, PB, PR
Page 10 and 11: 1. Application RangeThis spec. shee
Page 12 and 13: 7.2 Adjustment of Component.* Requi
Page 14 and 15: TROUBLESHOOTING1. No powerSymptom1)
Page 18 and 19: 5. In the case of becomes unusual d
Page 20 and 21: 13. In case of becomes unusual disp
Page 22 and 23: 18. No SoundSymptomLED is GreenScre
Page 24 and 25: 20.1 DVRSymptomLED is GreenDoesn’
Page 27 and 28: EXPLODED VIEW PARTS LISTNo. PART NO
Page 29 and 30: LOC. NO. PART NO. DESCRIPTION / SPE
Page 51 and 52: Copyright © 2007 LG Electronics. I
Page 53 and 54: Copyright © 2007 LG Electronics. I

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