No Picture (S-Video) - Samsung T220M Service Manual

4. Troubleshooting

4-7. No Picture (S-VIDEO)

Symptom The LED power turns on but the screen is blank when the Antenna Cable is connected.
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Even though the LED power turns on, the screen is blank when connecting the Antenna Cable.
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Check the Antenna Cable connections.
Major -
checkpoints
Check whether the LVDS cable is connected correctly to the panel.
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Check whether the lamp connector of the panel is connected correctly to the IP board.
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Diagnostics
Caution Make sure to disconnect the power before working on the IP board.
4-16
Power Indicator is off.
Lamp on, No signal image.
Yes
④ Does the S-VIDEO signal
appear at #50, 51 pin of IC5002?
Yes
Check a LVDS cable?
Replace lcd panel?
Main Board Front
No
No
No
Please, Call to Samsung Co. LTD.
check antenna cable
check antenna cable
Change a main PBA