LG 42LC2D Service Manual

57 pages

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LCD TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : LA51D

FACTORY NAME : 42LC2D-UD

MODEL : 42LC2D

website:http://biz.LGservice.com

e-mail:http://www.LGEservice.com/techsup.html

Service Manual1
Table of Contents2
Safety Precautions3
Leakage Current Cold Check (Antenna Cold Check)3
Leakage Current Hot Check3
Important Safety Notice3
Servicing Precautions4
IC Remove/Replacement5
"Small-Signal" Discrete Transistor Removal/Replacement5
Power Output, Transistor Device Removal/Replacement5
Diode Removal/Replacement5
Specifications6
Application Range6
Test Method6
Component Video Input (Y, CB/PB, CR/PR)7
Mechanical Specification7
Chroma & Brightness7
RGB Iinput (PC/DTV)8
HDMI Input (PC/DTV)8
EPLD Download9
EDID (the Extended Display Identification Data)/DDC Download9
EDID Data for LA51D9
Adjustment Instruction9
- MST9883A-Set Adjustment10
- Adjustment of White Balance10
- Video (Upd)11
- MSG925FA Adjustment11
- Shipping Conditions12
- SVC Remocon13
- General Power Flow14
- Power Board Troubles14
Troubleshooting14
- No Power15
- Abnormal Display16
- Does’t Display the OSD16
- In Case of Does’t Display the Screen into Specific Mode17
- Abnormal Display in RF Mode17
- Abnormal Display in AV Mode17
- Abnormal Display in Component 480I Mode18
- Abnormal Display in Component DTV Mode18
- Abnormal Display in RGB DTV Mode19
- Abnormal Display in RGB PC Mode19
- Abnormal Display in DVI Mode19
- No Sound20
Block Diagram21
- Wiring Diagram22
- Exploded View23
Exploded View Parts List24
Capacitors List25
Replacement Parts List25
- Diodes List29
- IC List29
- Coil and Core Inductors List30
- Transistors List30
- Resistors List31
- Other Parts35
- AV Board Parts List35
- Keyboard Parts List38
- Side Board Parts List39
- IR Board Parts List39
- Diagrams41

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LG 42LC2D Specifications

General

Brand	LG
Model	42LC2D
Category	LCD TV
Language	English

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