No Video (HDMI 1, 2, 3 - Digital Signal)
*Refer to the next page to check the lacation such a CN201 or IC1001 SVC Manual mentioned.
Symptom
Audio is normal but no picture is displayed on the screen.
•
Major
checkpoints
Check the HDMI source.
•
Check the HDMI switch.
•
This may happen when the LVDS cable connecting the Main Board and the Panel is
•
disconnected.
Diagnostics
Power indicator LED is off.
Lamp(Backlight) on, no video ?
No
Check a set in the ‘Stand-by mode’.
Yes
Check the HDMI source and check the
connection of HDMI cable ?
No
Input the HDMI signal properly.
Yes
1
Check the signal at Input of Main board ?
No
Check CN601~3.
Check HDMI cable.
Change the Main Board.
Yes
2
Check the LVDS clk signal at output of
Main board.(TX)
ODD_TXCLK- / OD
EVEN_TXCLK- / EVE
No
Check IC1001(X10+).
Change the Main Board.
Yes
Check the LVDS cable?
Replace the T-con / LCD panel?
No
Please, Contact Tech support.
Caution
Make sure to disconnect the power before working on the Power board.
4-7
4. Troubleshooting