Samsung TT20A54X/XAX Service Manual page 22

6-6 No Audio During Playback
the audio signal of ICM301
Samsung Electronics
Check Normal
Pin 96
Abnormal
Normal
Check the Audio
signal of ICM301
Pin 1, 100
Abnormal
Abnormal
Check the PC 5V
of ICM301 Pin 75
Normal
Abnormal
Check AC head
line and CNM501
Check the line of RM514, CM515
LM503, RM501, RM502 (A. out Line)
Check if ICM301
Normal
Pin 16, 17 is Low
(0 ~ 0.5V)
Abnormal
Check the A.EE/PB/REC
Line and D.REC Line
(ICM601 78, 94 Pin Check)
Check the PC 5V line
Replace ICM301
Troubleshooting
Replace ICM301
6-5