Service Manuals, User Guides, Schematic Diagrams or docs for : . Various DVD Power Supply Schematics DVD-6054_DVD-6184_LG
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CIRCUIT DIAGRAM IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO CIR-
CUIT. SPECIAL COMPONENTS ARE SHADED ON THE NOTE :
SCHEMATIC FOR EASY IDENTIFICATION.
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIF-
1. Shaded( ) parts are critical for safety. Replace only
with specified part number.
CUMSTANCES SHOULD THE ORIGINAL DESIGN BE
1. POWER(SMPS) CIRCUIT DIAGRAM MODIFIED OR ALTERED WITHOUT PERMISSION
FER FROM THE ACTUAL CIRCUIT USED. THIS WAY,
IMPLEMENTATION OF THE LATEST SAFETY AND
2. Voltages are DC-measured with a digital voltmeter
during Play mode.
FROM THE LG ELECTRONICS CORPORATION. ALL PERFORMANCE IMPROVEMENT CHANGES INTO
COMPONENTS SHOULD BE REPLACED ONLY WITH THE SET IS NOT DELAYED UNTIL THE NEW SERVICE
TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIR- LITERATURE IS PRINTED.
-27VA is abnormal VF+ not output
12V output is abnormal
Power dead
High Speed S/W IC 3.3V output is abnormal
3.3V output is abnormal
Power dead
Current feedback IC
DV7732NS's STM MODEL
Power Control is abnormal '02. 12. 20
NOTES) Warning
NOTES)
NOTES)
Parts that are shaded are critical
With respect to risk of fire or
NOTES : Symbol denotes AC ground.
Symbol denotes DC chassis ground.
SI3810
NOTES) electricial shock.
3-17 3-18
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