Troubleshooting By Blocks - Samsung WS32Z419D8**EU Service Manual

Troubleshooting

6-5 Troubleshooting by Blocks

6-5-1 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, 3.3V, 33V
- Check for an RF defect: Check the CVBS output
- Check for an AUDIO defect: Check the SiF Signal output
6-12 Samsung Electronics