Acer P244W

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3. Check LED Board
Checking LED
Board
Working ?
Yes
Yes
No
Replug the LED
wire, then retry
Button switch and traces
OK ?
No
Replace the LED
Board, then retry
Components
to
LED board OK ?
Yes
No
Replace the
components, then
retry
Replace a new
interface board
Yes
Check CTRL
board OK ?
Yes
No
Replace the CTRL
board, then retry