LG FA162 Service Manual page 34

ELECTRICAL TROUBLESHOOTING GUIDE OF AUDIO PART
No FL+/ FL-
YES
Is the P_CTRL OK?
YES
D950 normal?
YES
R950 normal?
YES
Check soldering
connector PN901.
No AMP output
YES
Is the Vcc
supplied to IC902
Pin7?
YES
D955 normal?
YES
Check soldering
connector CN901.
NO
Check 3.7 V output & P_CTRL.
NO
Replace D950.
NO
Replace R950.
NO
Is the P_CTRL OK?
D906, R910,
C915 normal?
NO
Replace D955.
3-15
NO
YES
NO
YES
Check 3.7 V.
Replace D906, R910, C915.