Service 2
Keysight 53210A/53220A/53230A Assembly Level Service Guide 143
10 If “Lock Cal” is displayed on a softkey, the counter is unlocked and ready for
calibration.
–The Perform Cal softkey becomes available.
11 Press the Perform Cal softkey:
– Display softkey annunciators show:
12 Press the Cal Step softkey.
– Display softkey annunciators show:
* Only displayed if Option 106 or 115 is installed.
13 Press the uWave softkey.
– Display softkey annunciators show:
14 Press the Perform Zero-Cal softkey to perform zero-calibration.
– Display momentarily shows:
If your microwave source does not have an ‘output enable/disable’ feature,
temporarily disconnect the cable from the microwave input channel until after
the zero-calibration is performed.