Partner Tech International PT-6900, Service Manual, Page: 62 / 106

52 Locating the Problem
Power symptoms
Network symptoms
S
YMPTOM
C
ORRECTIVE
P
ROCEDURE
Power shuts down unexpectedly
Cannot turn the system on
1
Reseat the power AC adapter cable.
2
Reseat/replace the power fan if not on.
3
Replace the I/O board.
4
Replace the motherboard.
Cannot turn the system off 1
Hold down the power button for four seconds.
2
Replace the I/O board.
3
Replace the motherboard.
S
YMPTOM
C
ORRECTIVE
P
ROCEDURE
Cannot access LAN 1
Confirm that network hub/switch (if present) is function-
ing correctly.
2
Reseat the RJ-45 cable.
3
Confirm green and orange LED activity of the RJ-45 jack.
4
Check the network TCP/IP settings.
5
Remove and reinstall the driver.
6
Replace the network cable.
7
Replace the I/O board.
8
Replace the motherboard.