Eiki EK-815U Service Manual page 36

3-3 No Power Troubleshooting
No Power
Troubleshooting
Is the power cord connected
securely at the projector and at
the power source ?
Yes
Is the power source providing
AC voltage?
Yes
Is the interlock switch closed?
Yes
Measure the voltage of J1, pins
1,13, and 14. is the output 5V?
Yes
Replace the main board
Continue function test and refer to
other troubleshooting once the
power LED light
End
Properly connect the power cord at
The projector and AC power source
No
Supply AC voltage (100-120V or
200-240V)
No
Ensure the interlock switch is in
the closed position
No
Replace the LVPS
No
No
EK-815U
3-3