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8.2.3 Service Diagnostic Disc Tests
The service diagnostic disc (HP part number 00095-60969) provides the following tests:
• ROM T.st.
For the HP-UX System
m
ROM assembly, a check-sum test is performed and a message
indicates whether the ROM assembly passed or failed the test.
For the HP-UX System V ROM assembly, a check-sum test is performed and a message indicates
whether the ROM assembly passed or failed. If the ROM assembly· failed the overall test, a check-
sum test
is
done
individually
for each ROM IC on the operating system PCA. If the ROM assembly
contains an option ROM PCA, each ROM on that PCA is also tested. If a ROM IC on either PCA
fails the test, an error message identifies it.
• 1/0
DI ••
nostic
T ..... You can test an I/O interface by pressing the appropriate function key. Refer
to the
Integral
PC
Interface and Memory Module Assembly-Level Seroice Manual
for the troubleshoot-
ing procedures.
• Bus Ix,."""
Test. You can also use the service diagnostiC disc to test the HP 82904A Bus Expan-
der. Refer to the
HP 82904A Bus Expander Service Manual.
The procedures in this chapter use the ROM test plus two of the I/O diagnostic tests: the
serial inter-
face test
and the
HP-IB interface test.
The serial interface test performs a functional check of an HP 82919A Serial Interface installed in one
of the I/O ports and, indirectly, of the I/O port itself. In this manual the test is used with a known-
good serial interface to test the intemlpt lines for port A and port B. To complete this test, the serial
interface must be installed in the computer, and a 82919·60903 Serial Test Connector must be in-
stalled in the interface before the computer is turned on.
The HP·IB test performs a complete functional check of the built-in Hp·IB of the Integral PC and of
an external HP-IB interface plugged into an I/O port. In this manual the test is used to check the
built-in HP-IB using a known-good HP 82998A HP-IB Interface. To perform the test you need to do
the following before you tum on the computer: install the I/O port
exten~er
(00095-60902)
in
an
external I/O port, install the HP 82998A HP-IB Interface in the port extender, and connect the the
interface to the built-in HP-IB with an HP 82977 A/B HP-IB Cable.
Note.
The current service diagnostic disc (HP part number 00095-60969) can be used to test
an Integral PC equipped with either the HP-UX System III or System V operating system. The
earlier I/O diagnostic disc (HP part number 00095-60942) cannot be used with System V.
8.2.4 Error Number Interpretation
The service ROM and service diagnostic disc return two kinds of error messages:
• Error messages that describe the problem (for example:
***
ERROR -
The external RRM failed).
• Error numbers (for example,
***
ERROR -
120).
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