Each of the Raster's knobs and switches has an alternate function, labeled in gray. The default setting for each knob is 12:00 (center).
To adjust alternate parameters for each knob:
Hold the WAVE/[ALT] pushbutton until the right LED turns cyan. For controls labeled "L / R", the PRESET and WAVE LEDs will show the setting as the knob is moved. The FDBK knob's alt parameter is a tone control, and is not L/R specific. Center is the default.
Left/right controls are off when the two middle LEDs are lit: ○○○● ●○○○
The three upper toggle switches also have factory default positions.
To reset switches to defaults: