Samsung TX20C53X/XET Service Manual page 72

Troubleshooting
6-8 No Color
1. Check the Color Adjustment level
2. Check the Sandcastle Pulse Line : IC201S #41
3. Check the R-Y, B-Y Line : IC201S #29~#32
4. Check crystal : X202 (4.43361MHz)
6-9 No Vertical SCAN
1. Check R410, D404
2. Check IC301, #7
3. Check IC201S #46, #47 Line
4. Check DY Connector
6-10 Horizontal Size
1. Check C402 , C403 , L401 , L404
6-11 On-Screen Display Missing
1. Check IC901S #2
(D905, Q901, DZ901)
2. Check IC901S #37 (R949, IC903)
Samsung Electronics 6-5