APPENDIX A: Troubleshooting
QuadraSynth Reference Manual 121

APPENDIX A

TROUBLE-SHOOTING

Trouble-Shooting Index

If you are experience problems while operating the QuadraSynth, please use the
following table to locate possible causes and solutions before contacting Alesis
customer service for assistance.
Symptom
Cause
Solution
The display does not light
when the ON/OFF switch
is turned on.
No power. Check that the power
cable is plugged in
properly.
Display is blank. Display contrast is set
either too high or low.
A dju st t he di spl a y co n tr as t.
(G l ob al , p.1, Q uad Kn ob 1) .
No sound. Bad connections.
Volume is turned down.
Keyboard Mode is set
incorrectly.
Check your audio cables;
if necessary, swap cables.
Turn [VOLUME] knob up.
Set the Keyboard Mode to
ÒFRM MIXÓ (Global, p. 2).
No MIDI input in Mix
mode (cannot control
through MIDI).
Bad connections.
One or more channelsÕ
MIDI IN switch is off.
Keyboard Mode is set
incorrectly.
Check MIDI cables.
Make sure the MIDI IN
parameter is turned on for
the channel(s) you wish to
control via MIDI.
Make sure the Keyboard
Mode (Global p. 2) is set
to FRM MIX.
Notes sustain
continuously.
Sustain pedal was
plugged in after power
was turned on.
Turn off power and turn
on again.

Re-initializing

If your unit behaves erratically or "freezes", the first step is to power down the unit.
and power it back up again. Disconnect any cables connected to the MIDI IN jack,
and make sure that a sequencer or keyboard is not sending messages to the
QuadraSynth that would make it behave erratically (such as a long stream of pitch
bend messages on 16 channels simultaneously). If these steps do not solve the
problem, you must re-initialize the software. Make sure your mod wheel is all the
way down before re-initializing, otherwise the "zero" position of the mod wheel will
be incorrect. To re-initialize the QuadraSynth, hold down both Quad Buttons [1]
and [4] while turning on the power. This will reset all Global parameters to their
default settings, and will initialize all edit buffers so that all Mix, Program and Effects
parameters are reset to their default settings. However, none of the Programs, Mixes,
or Effects are changed when re-initializing the unit.