Hints On Using The Exerciser - HP 9122D Service Manual

TROUBLESHOOTING
The DERROR alone nev,er indkates a failure; additional status information will be displayed if a problem
exists.
Some common DERRORS which occur with the 9122 are as follows:
DERROR
BA
SB
B9
Description
Occurs following power on self test if media which is formatted in single sided
format is in the drive. Indicates that no read/write test was performed
during the se lftest.
Occurs following power on self test if media which is formatted in double
sided format is in the drive. Indicates that a read/write test was pt!rformed
durin,g the self test.
Occurs fonowing execution of INIT MEDIA. The number of tracks spared on
both sides of the media is then printed.
DERROR's BO thru BF, CO, and FO thru F 4- could occur. Except for the ones indicated above, these DER-
ROR's do rlot provide significant additional information.
HINTS ON USING THE 5S/80 EXERCISER
The SS/80 Exercise:- provides some capabilities which are not available otherwise, and also provides more
formation about the 9122 than is otherwise available. Specifically, the' Exerciser provides the capability
~\}
transfer data and commands bt'::tween a host computer and the peripheral, and to performs certain tests
which cannot be implemented in any other way.
Please refer to the 5S/80 Exerci.ser manual,
PIN
5958-4142 for an overview of the capabilities contained
in the Exerciser.
Some general
testin~
solutions which can be implemented using the Exerciser are as f\)llows:
HP-IB channel test
Testing for R/W
errors
General product
evaluation
Flexible dISC
tests
Complete product
evaluation
4-12
The LOOPBAK test in the MANUAL module tests the capability to
communicate with the product across the HP-IB.
The R/W _TEST module allows either a Read Only, or a Write then
Read test to be performed on a single unit. This test (;an be set to loop
up to 32K times and allows extensive testing to identify a problem or
verify a repair.
The R/W __ TEST module provides capability to perform general
product testing and is recommended for this use.
The SER VC module contains special flexible disc drive
tests-~{otor
speed, Track 0, Head cleaning routine, etc.
The OPER program provides the capability to test all units and volumes
of a disc drive without manually selecting each one. An OPER program
can be defined which will select each unit and volume and then per-
form a locate and verify, locate and read, locate an<i write, etc. The
program will allow looping to perform extensive testing.