HP 30242 Installation And Service Manual page 48

Maintenance
To run the LANIC self-test, perform the following:
1. Determine that the LANIC is not in use. This can be done by typing
:SHOWDEV nn
at any terminal on the system, where
nn
is the logical device number of the LANIC. If you see
LDEV
36
AVAIL
AVAIL
OWNERSHIP VOL . . . etc.
or something similar, the LANIC is not in use.
If
you see
LDEV
36
AVAIL
UNAVAIL
OWNERSHIP
SYS #1
VOL . . . etc.
the LANIC is probably in use, and you should do a
NETCONTROL NET=xxx;STOP
before proceeding.
2. Open the computer card cage door and observe the self -test LEDs (see figure 4-1 for the locations of
the LEDs). Note whether the LEDs indicate normal activity or whether the ST
/*
LED is blinking
slowly and LEDs H through N are displaying a steady pattern. If a steady pattern is being displayed
by LEDs
H
through N, make a written record of which LEDs are lit. (This information may be needed
later if the problem is intermittent.) .
3. Press the LANIC TEST RESET switch (see figure 4-1) to initiate the self-test.
4. Observe the self-test LEDs. Refer to table 4-1 for the meanings of the various LED patterns. If the
self-test completes with no errors, the self-test LED (ST
/*)
will be on and LEDs
H
through N will be
off (a code of all zeros) for a period of five seconds. After five seconds, the ST
/*
LED will go off and
LEDs H through N will reflect activity on the LANIC. If the self -test fails, the code of the test that
failed will be displayed by LEDs H through N and the ST
/*
LED will blink slowly for at least 20
seconds (allowing time for the code to be noted).
5.
If the LANIC fails self -test, except as noted below, replace the LANIC card in accordance with the
procedures given in Section 2. Re-run the self-test after the new card is installed. If the new card
passes self -test and there still appears to be a problem on the network, run the LAN diagnostic (it is
possible for the LANIC to pass self -test and still not be functioning properly). The diagnostic tests
more of the LANIC card circuitry and also tests the AUI and MAD. Refer to the LAN /3000
Diagnostic and Troubleshooting Guide, part number 30242-90003,
for information on running the
LAN diagnostic.
Feb 85
4-2