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4.5.3 Button Operation
The four multifunction buttons, Left arrow/Contrast, Waveform/Right arrow, Up
arrow/Backlight and Down arrow/Mute, act as arrow keys on the system setup screen.
Left and Right Arrow Buttons
The left and right arrow buttons move the time indicator left and right in single steps but
remains within the current page of data.
Up and Down Arrow Buttons
The up and down arrow buttons move the time indicator 8 steps at a time. When the time
indicator is at the far right or left, continual pressing changes the page of data stored in the
memory to change forwards or backwards in time.
NOTE: When the time indicator is moved rapidly by the up arrow button or the down
arrow button, the movement may be less than 8 steps.