Typical Instrument Boot-Up Process Flow - Keysight n9020a Service Manual

Boot Up and Initialization Troubleshooting
Instrument Boot Up Process

Typical instrument boot-up process flow

1. Plug in the AC power cord from a known good AC power source into the
2. The yellow standby LED illuminates on the analyzer front panel to the
3. To turn the analyzer on, press the On/Off button. The yellow Standby LED
If the analyzer AC power source was removed by the operator by pulling the
NOTE
power cord or by turning off the analyzer via a power main switch on a test
rack, the analyzer will automatically power on without having to press the
On/Off button on the front panel.
rear panel of the analyzer.
left-hand side of the On/Off button. If the yellow Standby LED is not
illuminating refer to the
in this chapter.
should turn off and the green Power On LED should illuminate. A green
Power On LED indicates that the power supply has received an "On"
command from the A4 CPU assembly. If the green Power On LED is not
illuminating refer to the
section in this chapter.
"Yellow Standby LED Does Not Illuminate"
"Green Power On LED Does Not Illuminate"
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