26
Basic Field Troubleshooting and Repair
Loudspeaker difficulties usually fall into one of the following categories. The causes for
each problem are listed in the most likely order of probability.
No Sound or Low Output
1.
Loudspeaker cables or connectors are miswired or faulty: Check all cabling. Refer to these
instructions for correct loudspeaker cable connections. The best way to check a suspect cable
is to swap it with a known good cable. Read the loudspeaker's input panel to verify correct
cable connections.
2.
Electronic equipment is not turned on or level controls are not adjusted properly:
Make sure that all equipment in the signal path is powered up and that all controls are set to
appropriate levels for normal operation.
3.
Loudspeaker is not working: Connect the signal cable to a known good loudspeaker
leaving all equipment set to the same levels. If the problem disappears, the loudspeaker is
probably not working. Contact EAW Service for appropriate troubleshooting.
Distorted Sound
1.
The input to the internal amplifier is clipping: The input signal level is exceeding the limits of
your system and should be reduced in level.
2.
Other electronic equipment is clipping: Ensure that no equipment in the signal chain is being
overdriven. For example: input(s) or summing bus in the mixing console, equalizers, etc.
3.
Driver(s) not working properly: Contact EAW Service for appropriate troubleshooting.
Partial Sound (Some Frequency Bands Missing)
1.
Incorrect EQ settings in the electronic equipment: Ensure all EQ settings and filters on the
mixing console or preamplifier and on other equipment are set for normal operation. Ensure
level controls on electronic crossovers and associated amplifiers are correctly set and that all
cables and connections for such equipment are working properly.
2.
Incorrect processor configuration: Make sure the processor configuration is correct for the
loudspeaker and its intended mode of operation. This includes settings made using software
for powered loudspeakers.
3.
Incorrect mode settings on the loudspeaker input panel. Ensure mode settings are correct for
the application.
4.
Driver(s) not working properly: Contact EAW Service for appropriate troubleshooting.
