Samsung CS2551SX Service Manual page 39

5-3 No Sound
Speaker and Wire
Normal
Check/Replace
IC601
Samsung Electronics
http://www.79wl.com
No Sound
Check
Normal
the signal output
from CN601,
602 Pins
Check
Normal
the signal input
to IC601 Pin
Check
IC601 B+
tuner B+ and SIF
Abnormal
Check
B+ Line (8V)
Abnormal
Check
Abnormal
the signal input
to IC602 pins
4 12
,
Check
47
Abnormal
Abnormal
Check/Replace
Check
the resistance
of FD802
Troubleshooting
Normal
Check
IC602 B+
Normal
Replace
IC602
5-3