LG FH6 - Lighting

3-31
ELECTRICAL TROUBLESHOOTING GUIDE
6. NO LIGHTING
YES
YES
YES
YES
No Sparkling LED
Check IC307.
Check Q113 ~ Q124.
Check or replace IC101.
Check CN104
and CN1004/ CN1001 connection.
NO
NO
NO
IC307 pin6
5 V power OK?
IC101
pin24, 25, 26, 27, 28, 29
signal OK?
CN104
pin13, 14, 15, 17, 18, 19
signal OK?
YES
YES
YES
YES
No SPK Cone LED
Check IC307.
Check Q101~ Q112.
Check or replace IC101.
Check CN104
and CN1004/ CN1001 connection.
NO
NO
NO
IC307 pin6
5 V power OK?
IC101
pin5, 15, 16, 20, 21, 22
signal OK?
CN104
pin5, 6, 7, 9, 10, 11
signal OK?