AOC E2251FWU - Specification; General Specification

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8.2 Trouble Shooting
No Power
Check the AC power
Check the USB cable is
tight?
Check the LED indicate
is OK?
OK
NG
No power
Check the power cable
is tight?
Re-plug the power cable
Replace main board and check connections
Replace the adapter board and check the connections
OK
NG
OK
NG
OK
Re-plug the USB cable
Replace LED board and check connections
OK