Harman International Industries Inc EON615 Manual Do Utilizador

20

No sound

Speaker not connected  

to active AC power

Verify that speaker is connected and that the circuit is on

Power not switched on

Switch on power and verify that power LED is on

No sound, speaker is connected  

to working AC power but won’t 

come on.

Speaker power cable is faulty  

or improperly connected.

• Re-seat the power cable at both ends. 

• Substitute a known-good power cable

No sound. Speaker comes on.

Signal source  

(mixer, instrument, etc.)  

is not sending.

• Check VU meters on the source mixer

• Verify that the tape or CD is playing. 

•  Use headphones to verify that the instrument is actually  

sending an audio signal

Faulty cables and 

connections

• Disconnect and re-seat signal cables. 

• Replace suspected cable with a known-good cable

No sound with microphone 

connected directly to the  

MIC/ LINE input.

Microphone requires  

phantom power

The EON does not supply phantom power. Switch to a dynamic 

microphone, use a battery powered microphone (if possible),  

use an external phantom power supply for condenser type microphones.

Signal sounds distorted and  

very loud, PEAK light is lit  

most of the time.

Excessive input signal, trying  

to exceed the capabilities of  

the speakers

• Reduce the output level of the source. 

• Turn down the level controls on the speaker. 

• Use additional EON speakers.

Signal sounds distorted even at 

moderate volumes, LIMIT light  

is not lit. 

Mixer or other source  

is overdriven

Review the Owner’s Manual for your mixer and adjust controls as needed. 

• Input sensitivity (gain) 

• Channel faders 

•  Master faders Once this is done, review the instructions in the Quick 

Start section of this guide.

Lots of hiss in the sound,  

the mixer controls are at  

very low settings.

Improper gain structure

• Make sure that the MIC/LINE switch is in the LINE (disengaged) position.

•  Reduce the level settings at speaker. Review the Owner’s Manual for  

your mixer and adjust controls as needed. 

• Input sensitivity (gain)

• Channel faders 

• Master faders

Noise or hiss heard at output.

Noisy source device

Disconnect the devices that are connected to your speaker one at a time. 

If the noise goes away, the problem is with the source or the  

connecting cable.

Hum or Buzz that increases or 

decreases when the mixer level 

controls are moved.

Improper A/C ground or  

faulty equipment connected  

to mixer input

Disconnect or mute channels one at a time to isolate the problem. Refer to 

the owner’s manual of the faulty equipment for troubleshooting help.

Faulty cable between source 

equipment and mixer

Substitute a known-good cable for the suspected faulty cable.

Hum or Buzz

Improper A/C grounding,  

ground loops

• ‘Lift’ the audio ground by using an XLR/F to XLR/M adapter on one end. 

• Re-route audio cables away from AC power and lighting cables.

Excessively long  

unbalanced cable run

•  Use the balanced outputs (if available) of your mixer or source 

equipment to drive your EON speakers. 

•  Use a “DI” (direct injection) box to convert your unbalanced equipment 

output to a balanced output.

Improper system gain 

structure

Reduce the INPUT level controls and increase the output level of your  

source devices.

TROUBLE SHOOTING