Electro-Voice EVU-1062/95, User Manual

17

Installation

Connecting the Loudspeaker to the Signal Wires

To 

connect the signal wires to the connector on the back of the loudspeaker

, do the following:

NOTE:

This procedure is not illustrated.

Tools:

3/16-inch flat blade screwdriver 

1.

Loosen the 

+ and - screws

.

2.

Attach the 

signal wires

 to the appro and - terminal positions on the connector.

NOTE:

Attach only one (1) signal wire per terminal. 

3.

Tighten the 

+ and - screws

 until the signal wire is secure.

Troubleshooting

Problem

Possible Cause

Action

No Sound

Amplifier

Connect a known working test loudspeaker to the amplifier 
outputs. If there is no sound, check that all the electronics are on, 
the signal routing is correct, the source is active, the volume is 
turned up, and so on. Correct/repair/replace as necessary. If there 
is sound, the problem is in the wiring.

Wiring

Verify you have connected the correct wire pairs to the amplifier. 
Play audio at a low level through the amplifier (for example, 
from a CD player or tuner). Connect the test loudspeaker in 
parallel with the malfunctioning line. If the sound level has gone 
or is very weak, the line has a short in it (possibly a severe scrape, 
pinch, or staple puncture). If the sound level is normal, the wire is 
open (possibly a cut wire or a missed connection). Observe 
proper polarity and use the test loudspeaker to move down the 
line and test each connection/junction until you find the problem 
and correct it. 

Intermittent output such 
as crackling or distortion

Faulty Connection

Check all connections at amplifier and speakers to ensure they 
are all clean and tight. If the problem persists, it may be in the 
amplifier or wiring. See Problem 1 above.

Constant noise such as 
buzzing, hissing or, 
humming

Defective amplifiers or 
other electronic device

If the noise is present but no audio is playing, the likely cause is 
the signal chain in the electronics. Evaluate each component as 
necessary to isolate the problem.

Poor system grounding 
or ground loop

Check and correct the system grounding, as required.

If these suggestions do not solve your problem, contact your nearest Electro-Voice dealer or Electro-Voice distributor.