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