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LCD TV
SERVICE MANUAL
CHASSIS : LD01B
MODEL : 42LD450 42LD450-ZA
MODEL : 42LD450N 42LD450N-ZA
MODEL : 42LD458 42LD458-ZA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL62863003 (1001-REV00) Printed in Korea
CONTENTS
CONTENTS .............................................................................................. 2
PRODUCT SAFETY ................................................................................. 3
SPECIFICATION ....................................................................................... 6
ADJUSTMENT INSTRUCTION ................................................................ 9
BLOCK DIAGRAM...................................................................................15
EXPLODED VIEW .................................................................................. 17
SVC. SHEET ...............................................................................................
Copyright ©2010 LG Electronics. Inc. All rights reserved. - 2 - LGE Internal Use Only
Only for training and service purposes
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
Schematic Diagram and Exploded View.
It is essential that these special safety parts should be replaced with the ponents as mended in this manual to prevent
Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
An isolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC Do not use a line Isolation Transformer during this check.
power line. Use a