4-7
4. Troubleshooting
4-1-4. No Video (Tuner_CVBS)
Symptom Audio is normal but no picture is displayed on the screen.-
Major
checkpoints
Check the Tuner CVBS source
Check the SVP-WX
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
-
-
Diagnostics
3
1
2
No
Check a B+ voltage (#3 of Tuner) 5V,
change a main PCB ass’y.
No
No
Power Indicator is off.
Lamp on, no picure.
Yes
Change a main PCB ass’y.
Does the signal appear at R2710?
[4] Does the signal appear at C2617
of IC2601?
Check FRC board(Peony model).
Check Local dimming board
Change a Local dimming(Rose)
PCB ass’y.
No
Please, Call to Samsung Co. LTD.
Check the LVDS cable?
Replace the LCD panel?
Yes
Connect the RF cable and
check RF signal.
Yes
1
2
3
Yes
Caution Make sure to disconnect the power before working on the IP board.
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