B&K Precision 4045B - Manual - Manual (Page 49)

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3.8 Cursor Keys
Use these keys to move the cursor (when visible)
either left or right. They are used in conjunction with
the rotary input knob to set the step size of the rotary
input knob.
3.9 Rotary Input Knob
Use this knob to increase and decrease numeric
values. The cursor indicates the low-order position of
the displayed value which changes when you rotate
the knob (for straight numeric entries only). For other
types of data, the whole value changes when you
rotate the knob.
3.10 Power-On Settings
At power-on, the waveform generator performs a
diagnostic self-test procedure to check itself for
errors. If an error is found, an error code and text will
appear in the display window. Other error codes
appear when you enter an invalid front-panel setting.
For more information on error codes, see the Error
Indication section.
When the waveform generator finishes the diagnostic
self-test routine, it enters the local state (LOGS) and