Electro-Voice Evolve 90 handleiding
Handleiding
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EVOLVE 70/90 Portable Column Loudspeaker Troubleshooting | en 37
Bosch Security Systems, LLC
User manual
2025-03 | 01 |
10 Troubleshooting
Problem Possible cause Action
1. No sound Amplifier Verify all the electronics are on, the signal
routing is correct, the source is active; the
volume is turned up, no channels are muted,
etc.
Correct/repair/replace as necessary. If there is
still no sound, the problem may be wiring.
Wiring Verify you have connected the correct cables
to the amplifier. Play something at a low level
through the amplifier. Connect a test
loudspeaker in parallel with the
malfunctioning line. If the sound level is gone
or is very weak, the line has a short in it
(possibly a severe scrape, pinch, or a missed
connection). Using the test loudspeaker, move
down the line and test each connection/
junction until you find the problem and correct
it. Observe proper polarity.
2. Intermittent
output such
as crackling or
distortion
Faulty connection Check all connections at amplifier and
loudspeakers to ensure they are all clean and
tight. If the problem persists, check the
wiring. See problem 1.
3. Constant
noise such as
buzzing
hissing or
humming
Defective source or
other electronic
device
If noise is present, but no program material is
playing, evaluate each component as
necessary to isolate the problem. Most likely
there is a break in the signal path.
Poor system
grounding or ground
loop
Check and correct the system grounding, as
required.
4. No sound
produced with
microphone
connected to
INPUTS 1-2
Microphone requires
phantom power.
Ensure the microphone is connected to
INPUTS1-2. Ensure that PHANTOM is set to
ON in this channel. Phantom power is not
available on INPUT3-6.
Input channel is
muted or LEVEL is too
low.
Select the channel and verify the channel is
not muted. If it is not muted, slowly increase
the channel LEVEL until sound is produced.
5. Sound is
distorted front
LED is OFF,
LCD screen
LIMIT is ON
Excessive input level Reduce the input level or loudspeaker level to
prevent limit.
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Productinformatie
| Merk | Electro-Voice |
| Model | Evolve 90 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 5266 MB |
