Appendix A — Trouble-Shooting

PART 10: APPENDICES

APPENDIX A

TROUBLESHOOTING

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

No power.

Check that the power cable

up when the ON/OFF

 

is plugged in properly.

switch is turned on.

 

 

 

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

Set the Keyboard Mode to

 

 

incorrectly.

NORMAL (Global Editing,

 

 

 

display page 6).

 

 

 

 

 

 

 

External MIDI device

Switch QS from Mix Mode

 

 

sent Volume (CC#7) or

to Program Mode or vice

 

 

Expression (CC#11)

versa.

 

 

commands with a value

Re-transmit higher values

 

 

approaching 0.

from MIDI device.

MIDI input in Mix mode

Bad connections.

Check MIDI cables.

isn’t working (i.e., you

MIDI IN is switched off

Make sure the MIDI IN

can’t control your unit via

for one or more channels.

parameter is turned on for

MIDI from a sequencer or

 

the channel(s) you wish to

some other controller).

 

control via MIDI.

 

 

Keyboard Play Mode is

Set the Keyboard to Mix

 

 

set incorrectly.

Play Mode (push Mix

 

 

 

button.

 

 

 

Serial port enabled.

Set I/O parameter to MIDI

 

 

 

(Global Edit Mode, page

 

 

 

15).

 

Notes sustain

Sustain pedal was

Turn the unit’s power off,

continuously.

plugged in after power

wait a moment, and then

 

 

was turned on.

turn it on again.

 

 

 

 

 

 

 

Stuck notes due to

Switch QS from Mix Mode

 

 

incomplete MIDI data.

to Program Mode or vice

 

 

 

versa.

Notes played from QS

MIDI echo/Thru enabled

Disable MIDI echo/Thru

have a “doubled” or

on external MIDI device

on external MIDI device

“flanged” sound

or computer

 

 

QS7.1/QS8.1 Reference Manual

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Alesis QS7.1, QS8.1 manual Troubleshooting, Part 10 Appendices Appendix a