When Playing Disc, No Audio Output - LG DR165 Service Manual

5. WHEN PLAYING DISC, NO AUDIO OUTPUT

CHECK Q801,
NO
Q802, Q803,Q805,
Q806, Q807, Q808
NO
CHECK
IC801 pin 8 (12V)
NO
Replace IC801
CHECK IC803 pin 2,4
(VCC) : 12V
Pin 32,33 (SCL/SDA) :
NO
Replace IC803
NO
IC808 pin 15,18(Audio_out
R/L): Is there a signal?
YES
IC808 pin 14,19 (Z_mute_R/L) :
IC701 pin 58 (A_mute_L) :
NO
IC801 pin 1,7
Is there a signal?
YES
Only "Without SCART model"
NO
IC803 pin 21, 22, 25,
26 : Is there a signal?
YES
L806, L826, L825, L810
: Is there a signal?
YES
CHECK Cable connec-
tions & TV Audio mute.
3-12
CHECK IC808 pin 1,2,3,4:
Pin 10 (Reset "H") :
Pin 7,8 (I 2 C) :
YES YES
CHECK IC808 pin 17
(12V) pin 5,11,20 (3.3V)
YES YES
Replace IC808
L822, L823 :
Is there a signal?
NO
IC1101 DEFECT