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No Video (HDMI - Digital Signal)
„
N Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
Symptom
-
-
Major
-
checkpoints
-
Caution
Make sure to disconnect the power before working on the PD board.
1
2
2
Diagnostics
Caution
Make sure to disconnect the power before working on the IP board.
Audio is normal but no picture is displayed on the screen.
Check the HDMI source
Check the Valencia
This may happen when the LVDS cable connecting the Main Board and the Panel is
disconnected.
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Yes
Check the HDMI source and check the
connection of HDMI cable ?
Yes
Does the signal appear at
IC601 pin31~38(HDMI1),
pin21~28(HDMI2), pin11~18(HDMI3),
pin2~9(HDMI4)?
Yes
Does the digital data appear at
pin 14~42 of CN1601?
Yes
Check the LVDS cable?
Check the T-con board?
Replace the LCD panel?
Valencia
No
No
No
No
No
4. Troubleshooting
Check a set in the 'Stand-by mode'.
Input the HDMI signal properly.
First of all check the setting of the
external device.
And then check the HDMI cable.
If the problem still occurs, replace the
Main Board.
Change the IC1201 or
the main PCB assembly.
Please, contact Tech support.
4-9
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