IBM 4247-V03, Maintenance Information

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Reference table 5a, LED and test page problems—External NPS
Symptom Probable cause Action
Power LED is not lighted
on external NPS No power
v
For NPS 540+ (P/N 30H4054) with no external power supply, see steps 1
and 2 of Table 17.
v
For NPS 540+ (P/N 30H4054) using an external power supply, see
Table 17.
v
v
Network or packet light
continues to flash after
power on with the
network cable
disconnected.
1. Turn off/on the printer. LAN must be shown on the display.
2. If the problem continues, replace the LAN card (see Attachment cards:
serial, twinax, LAN, coax).
Test page will not print
1. Check that parallel configuration values are at factory defaults.
2. Reseat the LAN card.
3. Press and hold the test button on the LAN card until the network light
flashes, then release the test button.
4. Remove the LAN card and perform the parallel port wrap test on the
printer.
5. If the parallel port wrap test passes, replace the LAN card.
6. If the parallel port wrap test fails, replace the logic board.
Chapter 1. Diagnosing problems
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