System Part - LG FH6 Service Manual
High power all-in-one speaker system
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Also See for FH6:
- Owner's manual (42 pages) ,
- Simple manual (8 pages) ,
- Simple manual (6 pages)
Table of Contents
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ELECTRICAL TROUBLESHOOTING GUIDE
3. SYSTEM PART
Power On
"HELLO" display on VFD OK?
CN402 & CN902 8P cable
connection OK?
CN102 & CN401 20P cable
connection OK?
CN902 (pin4, 6, 7) power OK?
CN102 (pin 4, 6, 10) power OK?
Check IC301/ IC304/ IC305 and SMPS board.
YES
NO
YES
YES
NO
NO
NO
Check supplied power from SMPS board.
NO
Check 8p harness cable.
NO
Check 20p harness cable.
YES
Check or replace VFD901.
YES
Check or replace CN401 & CN902.
3-26
- Quick Links:
- Power Supply on Main Board
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