Out-Of-Lock Messages - HP 8642A Operation And Calibration Manual

Operation Model
8642A/B
Operating Messages (cont'd)
Table 3-29. Out-of-Lock Messages
Message
Message
Solution Comments
Code Number
A19 OUT OF LOCK ERROR .00 3000 1, 2 Doubler ALC loop is out of lock.
A19 TRANSIENT FAILURE .01 3001 1,2 Doubler ALC loop had been out of lock but
now appears to be in lock.
A6A2
OUT OF LOCK ERROR .FO
5000 3 Internal hardware cannot phase lock to the ex-
ternal reference.
A6A2 TRANSIENT FAILURE .Fl 5001 3
Internal hardware had not been able to phase
lock to the external reference but now ap-
pears to be in lock.
A6Al OUT OF LOCK ERROR .F2 5002 2, 3 FM phase lock loop cannot track and lock to
the time base.
A6Al TRANSIENT FAILURE
F3 5003 2, 3 FM phase lock loop had not been able to
track and lock to the time base but now ap-
pears to be able to track and lock to the time
base.
A13 OUT OF LOCK ERROR .00 14000 1, 2
Output Section ALC loop is out of lock.
A13 TRANSIENT FAILURE .01 14001 1, 2 Output Section ALC loop had been out of lock
but now appears to be in lock.
All OUT OF LOCK ERROR .RO 17000 2,3 Reference phase lock loop is out of lock.
All TRANSIENT FAILURE
.Rl
17001 2,3
Reference phase lock loop had been out of
lock but now appears to be in lock.
A12 OUT OF LOCK ERROR .SO 18000 2,3
Sum loop is out of lock.
A12
TRANSIENT FAILURE
.Sl
18001
2,3 Sum loop had been out of lock but now ap-
pears to be in lock.
A9 OUT OF LOCK ERROR .TO
19000
3 IF phase lock loop is out of lock.
A9
TRANSIENT FAILURE .Tl 19001 3
IF phase lock loop had been out of lock but
now appears to be in lock.
A14
OUT OF LOCK ERROR .XO 23000
3 Heterodyne module SAW loop is out of lock.
A14 TRANSIENT FAILURE
.Xl
23001 3 Heterodyne module SAW loop had been out of
lock but now appears to be in lock.
A? OUT OF LOCK ERROR .ZO
25000
3 SAW loop is out of lock.
A? TRANSIENT FAILURE .Zl 25001 3 SAW loop had been out of lock but now ap-
pears to be in lock.
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