Agilent Technologies HP 8719D Service Manual page 89

Adjustments and Correction Constants
adjustments, electrical a@stments, and correction constants The correction
constants are empirically derived data that are stored in memory and then
recalled to refine the instrument's measurements and to determine its proper
operation.
Any the the A7 CPU assembly is replaced, all of the correction constants must
be regenerated and stored on the new assembly. Alternatively, the data can be
retrieved from disk. Hewlett-Packard recommends that you store the correction
constant data to disk by referring to the "EEPROM Backup Disk Procedure" in
this chapter.
Additionally, there are adjustments and correction constants that must be
performed following the replacement of an assembly. Refer to the following
"Post Repair Procedures" tables in order to determine which adjustments and
correction constants procedures to perform.