AURA - Harman Kardon Audio Service Manual (repair manual). Page 13

Aura

troubleshooting

10

there is no sound coming from the Harman Kardon Aura

•  no power to unit. Make sure that the wall outlet or 

power strip has power. 

•  Make sure that all switches for outlet/power strip are 

On and that all switches for the unit are On. 

distortion (static, crackling or hissing sounds)

•  Audio source or source material may be the problem. 

test the Harman Kardon Aura with another source. 

•  Volume level may be too high from auxiliary-device 

output. check the volume of the source and turn it 
down if necessary. 

Harman Kardon Aura emits a loud hum or buzzing noise 

•  Input cable is not plugged in properly. check the input 

cable connection. 

•  cable may have problems. replace the cable. 

•  It might happen due to ground loop (an unsuitable 

con-nection). turn the Harman Kardon Aura OFF and 
connect it to another wall outlet. 

If your Harman Kardon Aura is not performing the way you think it should, check if the problem is covered in this section before calling your dealer or contacting a Harman Kardon 
representative.

Harman Kardon

AURA Service Manual

Page 13 of 52