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4. Troubleshooting
4-2-5. No Video (Video AV)
Symptom
Audio is normal but no picture is displayed on the screen.
•
Check the Video CVBS source
Major
•
This may happen when the LVDS cable connecting the Main Board and the Panel is
checkpoints
disconnected.
Diagnostics
2
Caution
Make sure to disconnect the power before working on the IP Board.
4-16
Power indicator LED is off.
Lamp(Backlight) on, no video.
Yes
Check the video source and check the
connection of video cable.
Yes
Check the LVDS clk signal at output of
Main Board. (TX)
TX6_CLK : TCON SDA
-
TX8_DATA : TCON SCL
-
Yes
Check the LVDS cable?
Replace the T CON / LCD panel?
No
Check a set in the 'Stand-by mode'.
No
Input the video source properly.
Check IC1400(NT14U).
No
Change the Main Ass'y.
Yes
Please, Contact tech support.
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