ALESIS QS8.1 - Manual (Page 179)

Appendix A — Trouble-Shooting
QS7.1/QS8.1 Reference Manual 165
P ART 10: A PPENDICES
A PPENDIX A
T
ROUBLESHOOTING
If you experience problems while operating your QS7.1/QS8.1, please use the
following table to check for possible causes and solutions before contacting Alesis
customer service for assistance. Some of them may seem rather obvious, but you’d be
amazed at how easy it can be to overlook the basics.
Symptom Cause Solution
The display does not light
up when the ON/OFF
switch is turned on. No power. Check that the power cable
is plugged in properly.
No sound. Bad connections. Check your audio cables; if
necessary, swap cables.
Volume is turned down. Raise the [VOLUME] slider
or Pedal 1.
Keyboard Mode is set
incorrectly. Set the Keyboard Mode to
NORMAL (Global Editing,
display page 6).
External MIDI device
sent Volume (CC#7) or
Expression (CC#11) Switch QS from Mix Mode
to Program Mode or vice
versa.
commands with a value
approaching 0. Re-transmit higher values
from MIDI device.
MIDI input in Mix mode Bad connections. Check MIDI cables.
isn’t working (i.e., you
can’t control your unit via
MIDI from a sequencer or
some other controller). MIDI IN is switched off
for one or more channels. Make sure the MIDI IN
parameter is turned on for
the channel(s) you wish to
control via MIDI.
Keyboard Play Mode is
set incorrectly.
Serial port enabled.
Set the Keyboard to Mix
Play Mode (push Mix
button.
Set I/O parameter to MIDI
(Global Edit Mode, page
15).
Notes sustain
continuously. Sustain pedal was
plugged in after power
was turned on. Turn the unit’s power off,
wait a moment, and then
turn it on again.
Stuck notes due to
incomplete MIDI data. Switch QS from Mix Mode
to Program Mode or vice
versa.
Notes played from QS
have a “doubled” or
“flanged” sound MIDI echo/Thru enabled
on external MIDI device
or computer Disable MIDI echo/Thru
on external MIDI device