Appendix D: Troubleshooting - Alesis QS6.2 Reference Manual

D
Troubleshooting
If you experience problems while operating your QS, please use the
following table to check for possible causes and solutions before
contacting Alesis customer service for assistance.
Symptoms
The display does not light up when
the ON/OFF switch is turned on.
No sound.
MIDI input in Mix mode
isn't working (i.e., you can't control
your unit via MIDI from a
sequencer or some other
controller).
Notes sustain continuously.
Notes played from QS have a
"doubled" or "flanged" sound
Mod Wheel not working well (or
at all)
LCD shows "ADDRESS
ERROR"
Cause
No power.
Bad Connections.
Volume is turned down.
Keyboard Mode is set incorrectly.
External MIDI device sent
Volume (CC#7) or Expression
(CC#11) commands with a value
approaching 0.
Trying to record onto a track
higher than the current Song
allows.
INPUT SELECT is set to 2, 4, 8,
or 12-input mode.
EDIT PREVIEW plays back only
tracks selected for editing.
Sustain pedal was plugged in after
power was turned on.
Stuck notes due to incomplete
MIDI data.
MIDI echo/Thru enabled on
external MIDI device or computer
Unit was re-initialized with Mod
Wheel up
Bad Sys-ex data sent to QS via
MIDI input
Solution
Check that the power cable is
plugged in properly.
Check your audio cables; if
necessary, swap cables.
Raise the [VOLUME] slider or
Pedal 1.
Set the Keyboard Mode to
NORMAL (Global Parameter
page 6)
Switch QS from Mix Mode to
Program Mode or vice versa to
reset the MIDI Volume.
Re-transmit higher values from
MIDI device.
Copy all tracks, and paste into a
new song defined as having more
tracks.
Reset INPUT SELECT for 24-
input mode.
To hear all tracks, deselect any
tracks selected for editing using
TRACK EDIT.
Turn the unit's power off, wait a
moment, and then turn it on again.
Switch QS from Mix Mode to
Program Mode or vice versa.
Disable MIDI echo/Thru on
external MIDI device
Put QS into Out 01 mode (Global
Mode, page 6)
Put Mod Wheel all the way down
and re-initialize
Re-initialize. If it persists, load in
known good bank.
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