Keysight CXG, EXG, and MXG X-Series Signal Generators Service Guide 181
CPU and Disk Drives
CPU Troubleshooting
CPU Troubleshooting
CPU failures could manifest themselves in a broad range of failure symptoms. If
there is a CPU assembly failure some of the possible symptoms could be:
— Instrument will not boot up
— Instrument boots to Boot Service Menu
— Errors occur during operating system booting
— Displayed information is distorted
— Communication failure from external controllers
— Communication failure to internal assemblies
Before replacing the A2 CPU assembly be sure to see the “Pre Repair
Procedures” section in Chapter 16, “Pre and Post-Repair Procedures”
Instrument will not boot up
See Chapter 2, “Boot Up and Initialization,” and follow the procedure there to
isolate the issue.
Instrument boots to Boot Service Menu
If the instrument boots directly to the Boot Service Menu, and at the bottom of
the screen the statement "Failed to start firmware" appears, the operating
system has been corrupted. Use the “Start recovery firmware” procedure in
Chapter 5, “Service and Utility Menus,” to try to reinstall the operating system
and firmware. If this does not work replace the A5 CPU assembly.
Errors occur during operating system booting
Refer to the X-Series Signal Generators Error Messages guide for further clues
as to what might be causing the errors.
http://literature.cdn.keysight.com/litweb/pdf/N5180-90075.pdf
Use the “Start recovery firmware” procedure in Chapter 5, “Service and Utility
Menus,” to try to reinstall the operating system and firmware.
Communication failure from external controllers
See the “Communication Issues” section in Chapter 6, “Troubleshooting,” and
follow the procedures there to isolate the issue.
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