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4. Troubleshooting
Simple flow chart of malfunction
Does the TV turn on?
No
Check the Power Cord
Yes
Is standby LED on?
No
A5V appear at the pin
15 of CNM801 (IP)?
Yes
Check the B power
of main board. (B5V,
B3.3V, B1.8V) ?
Yes
Please, contact Tech support
4-2
Yes
Can you see anything
on the screen?
No
Yes
is any sound of TV?
check 18p cable.
Yes
If necessary, replace the
IP board.
Yes
Change the main board.
Yes
Can you see OSD menu
running on the screen?
Yes
Check LVDS cable connected
to Main Board.
If necessary,
replace the Main Board
Check dimming cable.
Yes
If necesary replace the
Yes
Can you see Digital
Channel broadcast ?
Yes
Replace the Main Board
Main Board.

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