LG FH2 - Audio Output

3-16
ELECTRICAL TROUBLESHOOTING GUIDE
NO AUDIO OUTPUT
YES
YES
YES
YES
YES
YES
YES
YES
PORT.IN function
USB function
END
END
Check L313, IC105.
Check L319, IC105.
Check IC10.
Check R20, D4, D6.
Check L30, L31, L32.
Check R1.
NO
NO
NO
NO
NO
NO
Check IC2 pin4, 8(3.3 V).
Check L319(3.3 V).
Check IC10 pin6(5 V).
Check JACK7 status.
Check signal
IC2 pin2, 10.
Check soldering status
L6, R11, R12.