Samsung LN32C450E1M - No Picture (Video_Cvbs)

4-10
4. Troubleshooting
4-1-6. No Picture (Video_CVBS)
Symptom Audio is normal but no picture is displayed on the screen. -
Major
checkpoints
Check the Video Source -
Check the SETD-10 (SX1) -
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. -
Diagnostics
No
Check a connection harness.
No
Power Indicator is off.
Lamp on, no picture.
Yes
Does the signal appear at
R799(AV1)/L701_SAV(AV2)?
No
Please, Contact Tech support.
Check a LVDS cable?
Replace lcd panel?
Yes
Check a A/V cable and video signal.
Yes
1
2
Does the digital data appear at the
output of LVDS Signal?
No
Check a IC1102.
Change a main PCB ass’y.
Caution Make sure to disconnect the power before working on the IP board.