HP 7936 Support Manual page 148

Troubleshooting and Diagnostics
7936 and 7937
Table 8-2. List of DERROR/TERROR's (12 of 25)
8-26
NUMBER
(hex/dec)
6A/I06
6B/I07
6C/I08
60/109
6F/Ill
INTER-
FACE
HP-IB
HP-IB
HP-IB
HP-IB
HP-IB
ERROR
DESCRIPTION
INV ALID HEADER.
( Fa u 1
t ) . A position verify
error has occurred because at
least one sector on the current
track has invalid header
inf orma tion.
ADDRESS MISCOMPARE.
(Event; FRU
=
servo). A
position verify error has occur-
red beca use the servo system
and controller cylinder position
address do not agree.
FORMAT FAULT. (Fault).
Examina tion of the headers on
the current track indicates that
one or more sectors ha ve
headers which are not consis-
tently formatted.
POSITION ERROR. (Event).
A position verify error has oc-
curred because the physical
cylinder address field of the
header does not match the cur-
rent target physical address.
READ SERVO MESSAGE
TIMEOUT.
(Event; FRU
=
servo).
A complete servo
message was not received in
the servo communication port
after receiving a servo system
interrupt.
SUSPECf
ASSEMBLY
Undetermined or parts
not required.
1. Servo PCA-AI
Undetermined or parts
not required.
Undetermined or parts
not required.
1. Servo PCA-AI