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LG LHD645 Service Manual

LG LHD645
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2-38
ELECTRICAL TROUBLESHOOTING GUIDE
No 5.5 VA
Is F901 normal?
Replace F901 (same fuse).
YES
YES
NO
Is TH901 normal?
Is the VCC
(11 V ~ 25 V) supplied to IC901
pin7?
Is BD901 normal?
Is D952, D953 normal?
Replace TH901.
Check or replace.
Replace BD901.
Replace D952, D953.
YES
YES
YES
YES
NO
NO
NO
NO
1. SYSTEM POWER SUPPLY ON SMPS BOARD
Power line of MAIN board is short.

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LG LHD645 Specifications

General IconGeneral
BrandLG
ModelLHD645
CategoryHome Theater System
LanguageEnglish

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