Samsung CL21K3WDX/STR Service Manual page 27

5-3 No Sound
Normal
Check/Replace
IC601
Samsung Electronics
Normal
the signal output
Check
Speaker and Wire
Normal
Check
IC601 B+
Abnormal
Check
B+ Line (8V)
No Sound
Check
Abnormal
from CN601,
602 Pins
Abnormal
Check
the signal input
to IC601 Pin
47
Abnormal
Check
tuner B+ and SIF
Check
Normal
the signal input
to IC602 pins
4 12
,
Check
IC602 B+
Abnormal
Check/Replace
Replace
the resistance
IC602
of FD802
Troubleshooting
Normal
5-3