Acer H236HL - No Video (Power LED Blue)

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2. No Video (Power LED Blue)
No Video (Power LED Blue)
Press the power
button is OK?
Check the LVDS/FFC
cable or panel
Re-plug the cable
NG
OK
OK
Replace the main board
Replace the LVDS/FFC
cable or panel
NG
Replace the key board
NG
Check the main board
and connection
OK