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Chapter 5
SERVICE INFORMATION
5.1
Introduction
This chapter provides basic troubleshooting procedures and instruc-
tions on how to obtain service and repair assistance.
5.2
Basic Troubleshooting
If
the di sk subsystem wi 11 not power up
(i.
e. none of the LED lsi s
lit), and the cooling fan is not operating, make the following simple
checks:
1. Make sure the power switch is at the ON position.
2. Verify that the main power outlet is functional.
3. Ensure the power cord is firmly seated in the power receptacle
and the main power outlet.
4. Disconnect power cord, open the fuse holder, and check the fuse
(refer to Appendix A).
If everything checks out but the disk subsystem still cannot power
up, proceed to Section 5.3.
If the disk subsystem powers up but the host computer encounters
mass storage errors, isolate the problem as tollows:
1. Turn off all devices, including the Bering1s Disk Subsystem, on
the HP-IB.
2. Disconnect the Bering disk subsystem from the HP-IB Bus.
3. Turn on the Bering disk Subsystem. Refer to Chapter 2, Section
2.3 of this manual for power-on self-test.
If any of the modules fails the power-on self-test, make
note of the MAIN LED at completion, and proceed to Section 5.3
for assistance.
If
the disk subsystem passes the power-on self-test, one of
the following events is likely. Please verify before proceeding
to next section for further assistance.
-- Malfunction in the HP-IB interface hardware, either at the disk sub-
system or the host computer side.
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