Troubleshooting

7 Troubleshooting

RISK OF INJURY!

Only authorised personnel may open the device for troubleshooting.

ATTENTION

Problem

Possible cause

Remedy

 

Power supply cable is not

Connect power supply cable to

 

connected to unit

unit

 

 

 

 

Power switch off

Turn power switch to on

 

 

position

 

Unit is not connected to

Connect output channel to

 

amplifier

amplifier

 

Microphone or auxiliary

Connect microphone or

 

equipment not connected to

auxiliary device to unit

No sound

unit

 

Volume control set to

Turn up volume control

 

minimum

 

 

 

 

 

Volume controls set to mute

Cancel muting by pressing

 

 

rotary knob

 

Pre-amplification not set

Set gain control on rear panel

 

correctly

to correct pre-amplification

 

Phantom power is switched off

Switch on phantom power for

 

 

condenser microphone

 

external potentiometer set to

Turn up external potentiometer

 

minimum

 

No sound with sinusoidal

Automix algorithm suppressing

Exclude channel from automix

feed

constant signal

algorithm

 

 

 

 

Pre-amplification not set

Set gain control on rear panel

Distorted signal

correctly

to correct pre-amplification

 

 

Volume control turned up too

Turn down volume

reproduction

far

 

 

 

 

Input signal level too high

Reduce input signal

If the error persists despite these instructions, contact AKG Acoustics GmbH or your AKG dealer immediately.

78

DMM 12BC

Page 78
Image 78
AKG Acoustics DMM 12BC manual Troubleshooting