83630A-07
SERVICE NOTE
SUPERSEDES: None
83630A Swept Signal
Serial Numbers: 0000A00000 / 9999Z99999
Auto-tracking/peaking error due to an incorrect cal constant value with
firmware 29 Feb 96 and newer.
Duplicate Service Notes:
83620A-06 83620B-07
83621A-03 83621B-04
83622A-05 83622B-06
83623A-06 83623B-07
83623L-07 83 624A-05
83624B-06 83630A-07
83630B-07 83630L-07
83631A-04 83631B-04
83640A-07 83640B-08
83640L-08 83 650A-07
83650B-07 83650L-07
83651A-03 83651B-05
Situation:
Several instruments have failed auto-tracking/peaking due to an incorrectly set cal constant.
The default value for cal constant 249 changed from 0 to 2048 with firmware revision
29 Feb 96.
ADMINISTRATIVE INFORMATION
SERVICE NOTE CLASSIFICATION:
INFORMATION ONLY
AUTHOR:
DM
© 1999 AGILENT TECHNOLOGIES
PRINTED IN U.S.A.
ENTITY:
5320
Continued
DATE: September 1999
ADDITIONAL INFORMATION:
1 of 2
Page 2 Service Note 83630A-07
Solution / Action:
If an tracking/peaking problem occurs and the firmware revision is 29 Feb 96 or newer,
check and set if necessary cal constant 249 to 2048. Also, when replacing A15 CPU or
firmware, pay close attention to the all the steps in the instructions included with the
replacement assembly.
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