Samsung LN32A330J1D - No Video (HDMI - Digital Signal)

4-5
4. Troubleshooting
4-1-3. No Video (HDMI - Digital Signal)
Symptom Audio is normal but no picture is displayed on the screen.-
Major
checkpoints
Check the HDMI source
Check the MSD2248AL
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
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Diagnostics
Check JA7001, JA7002, JA801S(SIDE),
HDMI cable.
Change the HDMI cable. Change
the main PCB assembly
No
Yes
Does the digital data appear
at output of R7049, R7050(CLK-/+),
R7051~R7056(DATA)?
No
Yes
Power Indicator is off.
Lamp(Backlight) Off, no video
Yes
Check the HDMI source and check
the connection of HDMI cable?
No
Input an HDMI signal.
Check the connected cable.
Yes
Check IC3001
Change the main PCB assembly
Check the LVDS cable?
Replace the LCD panel?
Please, Contact Tech support
No
Does the signal appear at
R7049, R7050(CLK+/-),
R7051~R7056(DATA)??
4
5
Yes
Does the digital data appear at
output of R3082F~R3095F?
No
Check IC4001
Change the main PCB assembly
7
Caution Make sure to disconnect the power before working on the IP board.