4-14
E Series 675/775 Service Manual
020-000546-04 Rev. 1 (04-2017)
Section 4: Troubleshooting
4.10 Network Troubleshooting
Network
Troubleshooting
Plug LAN cable into
RJ45 input
Try to use another PC
Is the RJ45
LED in normal status?
(Orange and green LED
will be lit)
Is the PC connected
to the internet?
Are the
projector network
settings correct?
Is the network
functioning OK?
No Fault Found
End
Yes
Yes
Yes
No
Change LAN cable
Yes
No
Is the RJ45 LED in
normal status?
Change IO Board
No
Is the RJ45 LED in
normal status?
Change Main Board
No
Yes
Yes
Change the projector network
settings
No
Change IO Board
Is the network
functioning OK?
Change Main Board
No
No
Yes
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