Alesis iMultiMix 16 USB Reference Manual page 33

External effects aren't working.
LED meters not working.
Computer does not see the
USB
iMultiMix .
Computer sees the iMultiMix
USB, but no sound is received
and/or transmitted.
USB audio has crackling or
glitches, or audio plays/records at
incorrect pitch.
No power.
Effects processor is not plugged
in or turned on.
Aux outputs of mixer aren't
connected to inputs of processor
or processor's outputs aren't
connected to mixer's inputs.
Mixer's effects return signal is
too low.
Nothing is routed to the
HDPH/CTRL RM output.
USB connection must be
established.
iMultiMix USB is not set as
primary sound device.
USB hub may be in use.
.
Computer configuration may be
incompatible with USB audio
Incorrect or defective power
supply.
Troubleshooting
Make sure unit is plugged in and
turned on.
Make sure the mixer's aux outputs
are connected to the processor's
inputs and that the processor's
outputs are connected to the mixer's
aux inputs.
Turn up the output of the effects
processor or turn up the mixer's
AUX RET A RETURN or
EFFECTS / AUX RET B
RETURN in the master section.
Press the desired MIX, ALT ¾ or 2
TK button.
Unplug the USB cable and turn off
USB
the iMultiMix . Turn the
USB
iMultiMix back on and plug
the cable back in. If this does not
work, leave the iMultiMix
turn off the computer (do not use
"restart" but instead actually turn off
the computer) and then turn it on
again.
In the computer's Control Panel, go
to the Sounds/Multimedia area. In
the Audio section, set the default
sound recording and playback
devices to "USB audio codec."
If you are using a USB hub,
disconnect the iMultiMix
from it and connect the mixer to the
computer directly instead. Certain
USB chipsets have design limitations
or IRQ assignment restrictions that
must be resolved before audio can
work correctly on them. See your
USB chipset documentation for
further information if required.
Replace with correct power supply
(only use Alesis-recommended AC
output power supply).
5
USB
on,
USB
31