Samsung CS21K3DX/BWT Service Manual page 26

Troubleshooting
5-4 Horizontal Lines Appear or Screen
5-5 No TTX
See No Video (Sound ok)
5-4
Check IC301 B+
16V-C,-13.5V-C
Normal
Check IC201S
Pin 21,22
(VDN,VDP)
Normal
Check / Replace
IC301
Abnormal
Check IC201S
Normal
Abnormal
Check
R413,R414
D405,D406
Abnormal
Check
IC201S
Check/Replace
IC201S
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