LG 20LS7D Service Manual - Flat Panel Television Guide

website:http://biz.LGservice.com

LCD TV

SERVICE MANUAL

CHASSIS : LA74E

MODEL : 20LS7D(C) 20LS7D(C)-UB

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

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LG Electronics 20LS7D(C)-UB service manual Lcd Tv

Contents

LCD TV Contents Do not use a line Isolation Transformer during this check General Guidance Servicing Precautions Small-Signal Discrete Transistor Removal/Replacement IC Remove/ReplacementPower Output, Transistor Device Removal/Replacement Diode Removal/Replacement General SpecificationTV SpecificationApplication range Test method White Chroma & Brightness Component Video Input Y, CB/PB, CR/PR RGB input PC/DTV Mechanical specification Application Object Adjustment Instruction Set Method ADC-Set Adjustment Required Test Equipment Preparation for Adjustments & Setting of Device23LS7D-UB Hdmi 23LS7D-UB RGB Required Equipment Adjustment of White Balance TV/CATV doesnt display Troubleshooting Video doesnt display Component doesnt display Rgbpc doesnt display Hdmi doesnt display LCD Exploded View Exploded View Parts List Replacement Parts List Description / Specification C1608C0G1H220JT 22pF 5% 50V C0G -55TO+125C DIODEs TRANSISTORs & FETs ICsRESISTORs MNR04M0APJ680 68OHM 5% 1/16W 4P 8P R1185 R4007 0RJ1001C678 R4147 R6031 SWITCHes CONNECTORsCOILs & FILTERs & INDUCTORs JACKs LED,DIP BL-BUBGE301 Round 3MM OTHERsPage Page Mar