Keysight CXG, EXG, and MXG X-Series Signal Generators Service Guide 419
Pre and Post-Repair Procedures
Additional Tasks
Additional Tasks
This section contains information on additional post repair tasks that must be
performed to return an instrument to normal functionality after certain
assemblies have been replaced. See Table 16-2 or Table 16-3 for a complete
list of all process that need to be performed after an assembly replacement.
Install Instrument Firmware
Whenever either the A5 CPU or any other assembly that contains FPGA code in
it is replaced the instrument firmware needs to be reinstalled to make sure that
all software in the instrument is correct for the version of firmware being used.
Installation of the firmware, whether it is of the same version that is already in
the A5 CPU assembly or of a new version, is the only way to reprogram the
FPGA code in the individual assemblies.
For instructions on how to reinstall the instrument firmware, as well as
firmware requirements for replacement assemblies, see Chapter 19,
“Instrument Firmware and Operating System”
Verify Factory I/Q Calibration
This task is for N5166B, N5172B, and N5182B instruments and may require the
use of additional test equipment.
For the Finalize RF Assembly Installation or Finalize BBG Assembly Installation
routines to complete successfully the status of the Factory I/Q Calibration
needs to be verified first. If it has not been successfully run the Enhanced
Factory Calibration will need to be run.
To verify that the Factory I/Q Calibration has been run successfully follow this
procedure:
1. Press Utility, More, Service to enter the service menu.
2. Press I/Q Int Channel Correction Calibration.
3. If there is a Date, Range, and Method on the display that the Factory
Calibration was performed, as shown in Figure 16-1, the Enhanced Factory
Calibration does not need to be run. Exit this procedure and continue with
the next task associated with the assembly being replaced.
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