5 Troubleshooting

Microphone level is too low.

No or low sound from a channel.

Internal effects aren’t working.

Not using TRS cables.

 

Make sure you are using 1/4”

 

 

TRS cables.

 

 

 

Phantom power is not

 

Turn on phantom power using

turned on.

 

the switch on the rear panel of

 

 

the mixer.

Microphone is damaged.

 

Test the microphone on other

 

 

audio devices. If you detect

 

 

damage, contact the

 

 

manufacturer or dealer.

 

 

 

Channel level is too low.

 

Turn up channel level.

Instrument volume is too

 

Turn up the instrument’s

low.

 

volume control. If problem

 

 

persists, check the instrument by

 

 

plugging headphones into the

 

 

instrument’s phone jack.

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.

External effects aren’t working.

An effect hasn’t been selected.

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.

Press the EFFECTS knob on the desired effect and make sure the SIG indicator is lit.

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 LEVEL or

EFFECTS / AUX RET B LEVEL in the master section.

LED meters not working.

Nothing is routed to the

 

Press the desired MIX or 2 TK

HDPH/CTRL RM output.

 

To Mix button.

 

 

 

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Alesis 8FX manual Troubleshooting, Effects / AUX RET B