If the self-test fails to run properly, Figure 5-6. the active led location, Figure 5-6) – HP 8517B User Manual

Page 70

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5-10

HP 8517B S-Parameter Test Set Manual

Troubleshooting the Test Set

Troubleshooting Procedures

Figure 5-6 The ACTIVE LED Location

If the Self-Test Fails to Run Properly

If the portion of memory holding the self-test program is faulty, the self-test
will not run properly. If any of the following conditions occur, it indicates
that the A4 HP-IB board is likely to be faulty.

•

All LEDs flash briefly, then turn off

•

All LEDs flash briefly and stay on

•

The ACTIVE LED turns on too quickly after power on

•

The ACTIVE LED does not turn on at all

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