LG Electronics 20LS7D(C)-UB service manual Contents

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CONTENTS

CONTENTS	2
PRODUCT SAFETY	3
SPECIFICATION	6
ADJUSTMENT INSTRUCTION	10
TROUBLE SHOOTING	14
BLOCK DIAGRAM	19
EXPLODED VIEW	20
REPLACEMENT PARTS LIST	22
SVC. SHEET

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Contents LCD TV Contents General Guidance Do not use a line Isolation Transformer during this checkServicing Precautions Power Output, Transistor Device Removal/Replacement IC Remove/ReplacementSmall-Signal Discrete Transistor Removal/Replacement Diode Removal/ReplacementApplication range Test method SpecificationGeneral SpecificationTV Chroma & Brightness WhiteComponent Video Input Y, CB/PB, CR/PR Mechanical specification RGB input PC/DTVAdjustment Instruction Application ObjectADC-Set Adjustment Set Method23LS7D-UB Hdmi Preparation for Adjustments & Setting of DeviceRequired Test Equipment 23LS7D-UB RGBAdjustment of White Balance Required EquipmentTroubleshooting TV/CATV doesnt displayVideo 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 RESISTORs ICsTRANSISTORs & FETs MNR04M0APJ680 68OHM 5% 1/16W 4P 8P R1185 R4007 0RJ1001C678 R4147 R6031 COILs & FILTERs & INDUCTORs CONNECTORsSWITCHes JACKsOTHERs LED,DIP BL-BUBGE301 Round 3MMPage Page Mar