Samsung CN331EBZX/DIS Service Manual page 25

5-3 No Video (Sound OK)
R419, R505 (HEATER 6.3Vrms)
Samsung Electronics
Check IC201 No
Pin 12,37 (8V)
Yes
No
Check IC201
Pin 6 (CVBS)
Yes
Check IC201
No
Pins 19, 20, 21
No
Check IC201
pin 27 (Y-IN)
Yes
No
Check IC501
on the CRT PCB
Check/Replace
D501 (CRT G1 pin)
CRT, V999
Check/Replace
IC802 KA7630
Check/Replace
IC201
Check/Replace
IC201, Q203
Check/Replace
IC501
Troubleshooting
5-3