Diagnostic Mode:
Plug in unit and turn off by pressing POWER. Hold down
LOOK AHEAD and press POWER. The unit will turn on all
LEDs. Use this mode to verify that all LEDs light up.
Movement on any pot (except INPUT pot) will cause the
INPUT and OUTPUT meters do display that pot's detected
position as a single LED. Use this mode to verify that each
pot can sweep from all the way left to all the way right.