Section 4: Troubleshooting
4.4
Main Procedure
IMPORTANT NOTE: Whenever the Keypad board which contains the serial number is replaced, rework is
compulsory.
4-4
Start
Connect power cord,
analog or digital signal,
then turn on the projector
Is the power button
No
backlight lit?
Press the power button to
turn on the projector
Does the
No
lamp ignite?
Yes
Is PIN protect on?
Yes
No
Is Image OK?
No
Yes
Is
Remote Control
No
OK?
Yes
Is network OK?
No
Yes
No Fault Found
Yes
End
A. No Power
Troubleshooting
B. Power
Troubleshooting
C. PIN Protect
Troubleshooting
D. Image
Performance
Troubleshooting
E. Remote
Control
Troubleshooting
F. Network
Troubleshooting
E Series 675/775 Service Manual
020-000546-04 Rev. 1 (04-2017)