LG FH6 - Audio Output

3-28
ELECTRICAL TROUBLESHOOTING GUIDE
NO AUDIO OUTPUT
A
A
YES
YES
YES
YES
YES
YES
YES
No USB play
No AUX IN play
Check IC306 and IC305.
Check JK201 or AUX IN cable.
Replace IC201.
Check CN401 & CN201 connection.
Check IC501.
NO
NO
NO
NO
NO
JK401 VCC (5 V) OK?
IC201 AUX input signal (pin23, 24) OK?
IC201 ADC_DATA (pin41) signal OK?
Is USB signal OK?
IC201I2S signal (pin42, 43, 44) OK?