HP 30242 Installation And Service Manual page 49

Maintenance
NOTE
The last test of the test sequence (2E, Loopback on Medium) requires that
an AUI cable and a MAU be connected to the LANIC. If these items are
not connected to the LANIC, the last test will report a failure. The
LANIC, however, may not be defective in this case.
The self -test should be repeated with an AUI cable and MAU. (A MAU
loopback hood, part number 92257B, may also be substituted for the
installed MAU.)
6. If an intermittent problem is suspected, the self -test may be looped by holding the LANIC TEST
RESET switch in with an alligator clip. The self -test 'will then loop until a failure is detected, and
will preserve the failure code as described in step 4 as long as the switch remains in.
7. If the self-test completes with no error indications, the LAN/3 000 diagnostic must also be run to
completely check the LANIC, AUI cable, and MAU. Run the diagnostic as described in the
LAN /3000 Diagnostic and Troubleshooting Guide, part number 30242-90003
Feb 85
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