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4. Troubleshooting
No Video (Tuner_CVBS)
„
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
Diagnostics
Caution
Make sure to disconnect the power before working on the IP board.
4-12
Genoa-P
Audio is normal but no picture is displayed on the screen.
Check the Tuner CVBS source
Check the Genoa-P
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
pin10, 11 of TU701_HN?
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?
No
Check a set in the 'Stand-by mode'.
No
Input the HDMI signal properly.
No
Change the TU701_HN or
the main PCB assembly.
No
Change the IC1001 or
the main PCB assembly.
No
Please, contact Tech support.
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