No Video (Hdmi - Digital Signal) - Samsung LA32A330J1N Series Service Manual

4-1-3. No Video (HDMI - Digital Signal)

Symptom Audio is normal but no picture is displayed on the screen.
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Check the HDMI source
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Major
Check the SEMS01 (IC1005)
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checkpoints
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
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1
Diagnostics
2
3
Caution Make sure to disconnect the power before working on the SMPS/IP.
Power Indicator is off.
Lamp on, no video.
Yes
Check the connection
of HDMI cable?
Yes
Does the digital data appear at
R5055~65?
Yes
Does the digital data appear at the No
output of LVDS (RA5009~5011)?
Yes
Does the digital data appear at the
output of LVDS Data(IC5 #81~96)?
Yes
Check the LVDS cable?
Replace the LCD panel?
Input a HDMI cable.
No
No
Check a FT3001, FT3002.
Change a main PCB ass'y.
No
Check a IC5001.
Change a main PCB ass'y.
No
Change a main PCB ass'y
No
Please, Contact Tech support
4. Troubleshooting
Check a IC5.
4-5