Alesis iMultiMix 16 USB, Справочное руководство

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5
Troubleshooting
30
Too much low-level noise in the
mix.
Engage the channel’s high-pass filter
by pressing the HPF switch.
Interference from appliances
such as air conditioners.
Engage the channel’s high-pass filter
by pressing the HPF switch.
Audio signal carries an unwanted
hum.
Not using TRS cables.
Make sure you are using 1/4” TRS
cables.
Phantom power is not turned
on.
Turn on phantom power using the
switch on the rear panel of the
mixer.
Microphone level is too low.
Microphone is damaged.
Test the microphone on other audio
devices. If you detect damage,
contact the manufacturer or dealer.
Fader is too low. Raise channel fader.
Instrument volume is too low.
Turn up the instrument’s volume
control. If problem persists, check
the instrument by plugging
headphones into the instrument’s
phone jack.
Channel is muted.
Check the MUTE / ALT 3/4
switch.
No or low sound from a channel.
Gain is too low. Adjust the channel’s GAIN control.
Effects level is too low.
Turn up the level using the
EFFECTS / AUX RET B LEVEL
control in the master section of the
mixer.
Internal effects aren’t working.
An effect hasn’t been selected.
Press the EFFECTS knob on the
desired effect and make sure the
SIG indicator is lit.