Samsung CW29M064VPXXEC Service Manual page 23

Troubleshooting
5-4 Horizontal Lines Appear or Screen
5-5 No TTX
5-4
Check IC301 B+
16V-C,-13.5V-C
Normal
Check IC201S
Pin 21,22
(VDN,VDP)
Normal
Check / Replace
IC301
Check IC201S
Normal
See No Video (Sound ok)
Abnormal
Check
R412, R416
DD401, D404
Abnormal
Check
IC201S
Abnormal
Check/Replace
IC201S
Samsung Electronics