Preparation for Use 1
Keysight 53220A/53230A User’s Guide 29
Applying Power
Connect the power cord and press the “on/standby” button on the front panel
( ). During the power-on sequence the counter performs an auto-calibration
and self-test which includes:
– power supply verification
–FPGA test
– front panel verification
–measurement board verification
– channel 3 test (if present)
– Option 300 battery test (300 if present)
Power-on LED status
The led located under the on/standby button is an indication of the on/off/
standby condition of the instrument. The different conditions are summarized in
the table below. The ‘off’ status is determined by the presence of OXCO Option
010.
If the 53220A/53230A does not turn on when the on/standby button is pressed,
verify AC power is available to the instrument and that the power cord is
securely connected. If the instrument still does not turn on, the cooling fan is not
audible, or if the front panel display is off when power is applied, return the unit
to Keysight for repair.
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