When Playing Disc, No Audio Output - LG RH188S Service Manual

5. WHEN PLAYING DISC, NO AUDIO OUTPUT

CHECK Q801, Q802, Q803,
Q805, Q806, Q807, Q808
CHECK IC801 pin 8
(12V)
YES
Replace IC801
CHECK IC803 pin 2,4 (VCC):12V
Pin 32,33 (SCL/SDA) :
YES
Replace IC803
IC808 pin 15,18(Audio_out R/L):
Is there a signal?
YES
NO
IC808 pin 14,19 (Z_mute_R/L) :
IC701 pin 58 (A_mute_L) :
YES
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.
NO
CHECK
IC808 pin 1,2,3,4 :
Pin 10 (Reset "H")
Pin 7,8 (I2C) :
YES
CHECK
IC808 pin 17 (12V)
pin 5,11,20 (3.3V)
YES
Replace IC808
L822, L823 :
Is there a signal?
YES
3-8
NO
IC101
DEFECT