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NUMBER
(hex/dec)
80/141
8E/142
8F/143
90/144
91/145
92/146
Troubleshooting and Diagnostics
7936 and 7937
Table 8-2. List of DERROR/TERROR's (17 of 25)
INTER-
FACE
HP-IB
HP-IB
HP-IB
HP-IB
HP-IB
HP-IB
ERROR
DESCRIPTION
VERIFY FAILED. (Event).
A
position
verification
has
failed due to ECC data errors.
VERIFY FAULT. (Fault).
The controller has detected a
head miscompare with no ECC
data errors while reading from
a track on which a successful
verify has already completed.
CONTROLLER
FAULT.
(Fault; FRU
=
controll-
e
r ) .
The
controller
has
detected an illegal program
state or hardware condition
within itself.
READ DMA DISC ERROR.
(Event). The controller disc
DMA has the disc error status
bit set. No other hardware
status is indicated.
READ ECC TIMING FAULT.
(Event).
During a read. the
ECC circuit in the controller
had the Timing Fault status bit
set. No other hardware status
indicated.
OFFTRACK
WRITE.
(F au 1 t). A disc write opera-
tion has failed beca use of a
servo offtrack error.
SUSPEcr
ASSEMBLY
1. Read/Write PCA-A2
1. Controller PCA-A6
1. Controller PCA-A6
Undetermined or parts
not required.
Undetermined or parts
not required.
1. Servo PCA-A 1
8-31
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