LG FH2 - Page 32

3-15
ELECTRICAL TROUBLESHOOTING GUIDE
5. NO AUDIO OUTPUT
YES
YES
YES
YES
YES
FM function
END
Check IC6, Q7, L325, IC6 & Q7.
Check R28, R57, R59, R64.
1. Check L13, L22.
2. Check connection status JACK8.
3. Check JACK8 22 V.
4. Replace SMPS Board.
Check IC13, IC105.
NO
NO
NO
NO
Check IC7 2pin(3.3 V),
JACK4 pin4, 6(3.3 V).
Check IC13 pin9, 25(3.3 V).
Check IC13 pin2, 3, 34, 35(22 V).
Check signal IC13
pin15, 20, 21, 22.