Samsung T220HD - No Sound

4-16
4. Troubleshooting
4-7. No Sound
Symptom The LED power turns on but the screen is blank when the DVI cable is connected.T
Major
checkpoints
Even though the LED power turns on, the screen is blank when connecting the DVI cable.
Check the DVI cable connections.
Check whether the LVDS cable is connected correctly to the panel.
Check whether the lamp connector of the panel is connected correctly to the IP board.
T
T
T
T
Diagnostics
Main Board Front
IC5002
IC2005
Yes
No
Picture is display, no sound.
Connect a sound cable.
control a volume.
Yes
No
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Check a connection harness.
Yes
No
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check IC2003.
Change a main PBA.
No
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check IC2005.
Yes
Replace the speaker ass’y?
Caution Make sure to disconnect the power before working on the IP board.