Samsung TX14N3DF4X/XET Service Manual page 43

Troubleshooting
5-3 No Picture (Sound OK)
1 Check the Brightness, Contrast and Color adjustments
2. Check: AV Picture, Video Playback
3. See Video Block Diagram
5-4 No Sound (Picture OK)
1. Check the Volume adjustment level.
2. Check AV Video, Sound Playback
3. See Audio Block Diagram
5-5 RF Weak Signal (Playback, AV Mode OK)
1. Check Tuner (TU01S) B+. Check : 9V, 33V, 5V (CN802A)
5-6 Recording Defect
1. CN802A Check : Retouch
2. 2nd Tuner (TU02S) B+. Check : 33V(LT02)
5V (JTV501)
3. 2nd If : Check 5V (ICT01), Video out, Audio out
4. Video Defect : IC701 Check
5. Audio Defect : IC701 Check
6. Standby Recording Defect, ICM601 #42 Line:
7. VPS (PDC) Recording Defect: Check ICP01, #5, #27, #24, #2
Samsung Electronics 5-3