96 Keysight CXG, EXG, and MXG X-Series Signal Generators Service Guide
Self Test
Self Tests Do Not Run or Self Tests Run Slowly
Self Tests Do Not Run or Self Tests Run Slowly
If self tests will not run or run slowly, the most likely cause is a faulty A1 Power
Supply or A5 CPU assembly. The A5 CPU assembly relies on correct power
supply voltages. If the A1 Power Supply is faulty, it could cause a false A5 CPU
assembly error.
1. Reinstall the instrument firmware. Refer to Chapter 19, “Instrument
Firmware and Operating System” for instructions on how to do this.
2. If reinstalling the instrument firmware does not resolve the issue verify all
of the power supply voltages. Refer to the “Power Supply Status
Quick-Check” in Chapter 8, “Power Supply” for detailed instructions.
3. If not fault is found with the power supply, replace the A5 CPU assembly.
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