HP 8642A Operation And Calibration Manual page 307

Model 8642A/B Adjustments
HP 8642 CONFIGURATION REQUIREMENTS FOR AUTO-ADJUST
To ensure proper operation and accuracy of Auto-Adjust routines the HP 8642 must meet the following
minimum configuration.
1.
Firmware Date Code must be 850620 or newer. To determine the Firmware Date Code, key in
ISHIFTllsPCLI
@]
~~. The Firmware date Code is displayed in the format "YYMMDD", where
"YY" is the last two digits of the year (ie. "85"), "MM" is the number of the month (ie. "06"), and
"DD" is the day of the month (ie. "20").
2. A2 Modulation Modules with Serial Prefixes 2714A and above require HP 8642 Firmware Date Code
870601 and above for proper Auto-Adjust operation.
3. The HP 8642 serial number suffix must be greater than XXXXA00200.
4. The HP 8902A used in some of the Auto-Adjust routines must have 32.0 SPCL keyed into it before
running the routine if it's firmware date code is 235.1985 or newer. Key 42.0 SPCL into the HP 8902A
to display the firmware date code.
rev.20AUG87
NOTE
If an HP 8642 does not have any of the above configuration restrictions
and Auto-Adjust difficulties arise, please contact your local Hewlett-Packard
Service Center.
5-2.1