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CIRCUIT DIAGRAMS
1. SMPS(POWER) CIRCUIT DIAGRAM (1000W)
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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
NOTES)
Symbol denotes DC chassis ground.
NOTE)
Warning
NOTE)
Parts that are shaded are critical
NOTE)
With respect to risk of fire or
NOTE)
electricial shock.
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IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO CIR-
CUMSTANCES SHOULD THE ORIGINAL DESIGN BE
MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE LG CORPORATION. ALL COMPONENTS
SHOULD BE REPLACED ONLY WITH TYPES IDENTI-
CAL TO THOSE IN THE ORIGINAL CIRCUIT. SPECIAL
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K
L
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N
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COMPONENTS ARE SHADED ON THE SCHEMATIC
NOTE :
FOR EASY IDENTIFICATION.
1. Shaded( ) parts are critical for safety. Replace only
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIF-
with specified part number.
FER FROM THE ACTUAL CIRCUIT USED. THIS WAY,
2. Voltages are DC-measured with a digital voltmeter
IMPLEMENTATION OF THE LATEST SAFETY AND
during Play mode.
PERFORMANCE IMPROVEMENT CHANGES INTO
THE SET IS NOT DELAYED UNTIL THE NEW SERVICE
LITERATURE IS PRINTED.
2008.01.21
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P
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LGE Internal Use Only
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