Data General NOVA ECLIPSE 6234 Service Manual page 79

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Data General Corporation (OGC) has prepared this manual for use by DGC personnel and customers as a guide to the proper installation, operation, and
maintenance of OGC equipment and software. The drawings and specifications contained herein are the property of OGC and
s~all
neither be reproduced in
whole or in part without OGC's prior written approval nor be implied to grant any license to make, use, or sell equipment manufactured in accordance herewith .
A. STAND-ALONE CONTROLLER TEST FAILURES-
FAILING MODULE - DISK CONTROLLER
B. STATUS ERRORS
MODE UNIT i DATA
STARTING DISK ADDRESS
CYL i HEAD SECTOR i
ACl(STATUS) SHOULD =ACO
DESCRIPTIONS OF FAILING STATUS BITS
PROBABLE FAILING MODULES -(AS PER EACH FAILING BIT)
C • MEMORY/DISK ADDRESS ERROR
MODE
UNIT
i
DATA
STARTING DISK ADDRESS
CYL
i
HEAD
i
SECTOR
i
ENDING MEMORY/DISK ADDRESS ERR.OR
ACl (MA/DA) SHOULD =ACO
D. INTERRUPT TIMEOUT
MODE
UNIT
i
DATA
STARTING DISK ADDRESS
CYL
i
HEAD
i
SECTOR
i
INTERRUPT TIMEOUT
Figure 4-22. Model 6234 Sample Error Report
CAUTION
Replacing the data module or reformatting the disks in the
data module will destroy all stored data.
When you receive a failing FRU (module) report, replace one FRU at a
time and rerun the diagnostic program. If the diagnostic fails after
replacing one FRU, reinstall the original FRU and then replace the other
FRU called out by the error report and try again. Ref er to Section 5 for
replacement procedures.
If the medium is called out as a failing module, try reformatting
before replacing the data module.
Additional test significance can be found in the program listing,
although it is hoped that a need for the listing will be minimal. SWPACK
(SWREG) provides all control over test loop options and printouts.
015-000133
4-35