Keysight CXG, EXG, and MXG X-Series Signal Generators Service Guide 423
Pre and Post-Repair Procedures
Additional Tasks
Figure 16-4 Restore License Data From Backup
10.The instrument will copy the licenses from the backup location on the A3
RF assembly into the A5 CPU non-volatile memory and load the
instrument firmware.
11.Once the instrument completes its boot up process all the previously
licensed options should be enabled.
12.If the following error is seen at this point cycle the instrument power once
more and it should then be gone.
617 Configuration Error: The backup memory contains license keys
for serial number <serial number>. Use the service procedure to
overwrite the backup memory.
Once this procedure has completed continue with the next task associated
with the assembly being replaced.
Backup Licenses
When the licenses for frequency range and other options are installed in the
instrument they are saved in non-volatile memory on the A5 CPU assembly.
Before the instrument was shipped from the factory a backup copy of these
licenses was also saved on the A3 RF assembly. If the A3 RF assembly is
replaced, the licenses that are in the A5 CPU non-volatile memory will need to
be backed up to the backup storage location in the new A3 RF assembly, so
that there will be a copy of them in case the A5 CPU assembly should ever
need replacement.
When an A3 RF assembly is replaced the following error message will be
displayed until the licenses are backed up:
617 Configuration Error: Instrument licenses have not been copied to the
backup storage. Use the service procedure to copy license keys to backup
storage.
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