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8.2 Trouble Shooting
1. No Power
OK
No power
Check power cable is
tightened?
Check Power “On/Off”
is “On”?
Re-plug the power cable
Replace key board and check connections
Check the LED
indicate is OK?
Check the AC power
Replace main board and check connections
OK
NG
OK
NG
Turn on the Power “On/Off” switch