Keysight CXG, EXG, and MXG X-Series Signal Generators Service Guide 129
Troubleshooting
Communication Issues
1. Insert the flash memory device into a PC and verify that it has a FAT file
system.
2. Try a different FAT file system flash memory device from a different
manufacturer in the instrument, as not all flash memory devices are
compatible.
3. With a known good flash memory device, that can be successfully used in
a different signal source of the same type, check the functionality of both
front panel USB ports and both rear panel USB ports and note which ports
work and which ones do not.
— If all four USB ports do not work replace the A5 CPU assembly.
— If the front panel USB ports all work but any of the rear panel USB
ports do not work replace the A3 RF assembly.
— If the rear panel USB ports all work but both front panel USB ports
do not work replace the A6A1 Front Panel Interface assembly.
— If the rear panel USB ports all work and only one front panel USB
ports works replace the A6A2 USB Interface assembly.
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