Troubleshooting By Blocks - Samsung CW29M066V7XXEC Service Manual

6-4 Troubleshooting by Blocks

6-4-1 Troubleshooting System Boards
1. Tuner Diagnosis
If no signal is received even though the RF signal from the external
aerial is connected to the MAIN Board Tuner, check the following items.
- Supply Power: 5V, 9V, 33V
- Check for an RF defect: Check the CVBS output
- Check for an AUDIO defect: Check the SiF Signal output
Samsung Electronics
TP09
Troubleshooting
6-9