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NUMBER,
(hex/dec)
BB/187
BC/188
BD/189
00/208
Troubleshooting and Diagnostics
7936 and 7937
Table 8-2. List of DERROR/TERROR's (25 of 25)
INTER-
FACE
HP-IB
HP-IB
HP-IB
HP-IB
ERROR
DESCRIPTION
MISSING
FIRST
SER VO
RACK CROSSING. (Event;
FRU
=
servo).
First servo
track crossing was not detected
during seek.
SERVO TRACK 0 MISSING.
(Event;
FRU
=
servo).
Servo inf orma tion at track 0
not
detected
during
recalibration.
TRACK 0 LSB INCORRECT.
(Event;
FRU
=
servo).
Servo
could
not
verify
positioning at track 0 during
recalibration.
ERROR
CORRECTION
HEADER
MISCOMPARE.
(Fault; FRU
=
controll-
e
r ).
After successful data er-
ror correction, the header field
read from the disc did not
match the target header.
SUSPECT
ASSEl\1BLY
1. Servo PCA-AI
1. Servo PCA-Al
1. Servo PCA-A 1
1. Controller PCA-A6
8-39
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