Keysight (Agilent) 83623L Service Note

83623L-03

SERVICE NOTE

SUPERSEDES: NONE

836xx Synthesized Sweeper

Serial Numbers: 0000A00000 / 9999Z99999

836xx/8510 RF Unlock and Save/Recall problems

Duplicate Service Notes:

83620A-03 83620B-03 83622A-03
83622B-03 83623A-03 83623B-03
83623L-03 83624A-03 83624B-03
83630A-04 83630B-03 83630L-03
83640A-03 83640B-03 83640L-03
83642A-02 83642A-02 83650A-04
83650B-03 83650L-03

Continued

DATE: September 1997

ADMINISTRATIVE INFORMATION

SERVICE NOTE CLASSIFICATION:

MODIFICATION RECOMMENDED

ACTION
CATEGORY:

LOCATION
CATEGORY:

AVAILABILITY:PRODUCT'S SUPPORT LIFE AGILENT RESPONSIBLE UNTIL: September 1999

AUTHOR: DM ENTITY: 5320 ADDITIONAL INFORMATION:

IMMEDIATELY
ON SPECIFIED FAILURE
AGREEABLE TIME

CUSTOMER INSTALLABLE
ON-SITE
SERVICE CENTER

STANDARDS:
LABOR 1.0 Hours

SERVICE RETURN
INVENTORY: SCRAP

SEE TEXT

USED RETURN
PARTS: SCRAP

SEE TEXT

© 1997 AGILENT TECHNOLOGIES
PRINTED IN U.S.A.

1 of 2

Page 2 Service Note 83623L-03

To Be Performed By: Agilent-Qualified Personnel or Customer

Parts Required:
P/N DescriptionQuantity

08360-60201Firmware Upgrade Kit1

Situation:

Under some conditions, an 8510C and 836xx’s with firmware < 4 Jun 97 will report an RF un­lock message during test set calibration and operation. The RF unlock occurs when the 836xx
sweep is stopp ed mid sw ee p an d a ne w swee p st art e d mea su re ment restart key). Th e pr ob l em on l y
exists with 8510 systems.

A second problem was found only in 836xx firmware rev. 29 Feb 96 involving the Save/Recall
feature. When recalling a higher frequency range, a flat line can appear on the display. Pressing
recall a second time eliminates the problem and the instrument operates normally. Again, the
problem only effects 8510 systems.

Solution / Action:

For 836xx’s used in an 8510 system, if the customer reports an occasional unlock during test set
calibration/operation, replace the 836xx firmware using the upgrade firmware upgrade kit part
number 08360-60201.

For 836xx’s used in 8510 systems with firmware rev. 29 Feb 96, replace firmware using the firm­ware kit part number 08360-60201.