HP 8647A - Service Error Messages

5c
Service Error Messages
This chapter describes service error messages. Front panel and HP-IB
operation messages are covered in Chapter IC, “Operation Messages”.
502
Description
Cause
What
To Do
503
Description
What
To Do
504
Description
Cause
What To Do
505
Description
Cause
What To Do
Updated cal file
The RAM calibration file has been updated from the
calibration
ROM.
This is normal when a module is replaced.
This message requires no action.
Calcorrupt: restored
After detecting a failure in comparing calibration data
between
RAM and the calibration ROM, a data restore
was done.
This message requires no action.
Modulation calrestore failure
After detecting a failure comparing calibration data
between
RAM and the calibration ROM, a data restore
was attempted unsuccessfully.
There is either a failure in writing data to
RAM or in
reading data from the calibration
ROM.
Replace the A3 assembly. Both the calibration ROM
and RAM are on the A3 assembly.
FMsense calrestorefailure
After detecting a failure in comparing calibration data
between
RAM and the calibration ROM, a data restore
was attempted unsuccessfully.
There is either a failure in writing data to
RAM or in
reading data from the calibration
ROM.
The calibration ROM can be verified by replacing the
A5 assembly. The calibration
ROM is contained in the
assembly.
If the failure is still present after replacing the A5
assembly, replace the A3 assembly, which contains
the
RAM.
Service Error Messages 50.1