EK-620U/EK-621W
3-3
3-3 No Power Troubleshooting
No power
Troubleshooting
Properly connect power cord at unit
and AC power source
Is the power cord connected
securely at unit and power
source?
Is the power source
providing AC voltage?
Supply AC voltage
(100V~240V)
Change power supply
Continue function test and
refer to other troubleshooting
once the power LED light
Ensure the top cover in
it´s correct closed
posistion
Is the top cover
Securely in place and
properly fastened?
Yes
No
No
No
Yes
Yes
No
Change main board