EAW VR21, VR51 instruction manual Troubleshooting, No Sound or Low Output, Distorted Sound

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7. TROUBLESHOOTING

Loudspeaker difficulties usually fall into one of the following categories. The causes for each are listed in the most likely order of probability.

No Sound or Low Output

Loudspeaker cables or connectors are not wired correctly or are faulty. Check all cabling, referring to these instructions for the correct connections. The best way to check a suspect cable is to swap it with a known good cable. Check the loudspeaker’s input panel to verify correct cable connections.

Electronic equipment is not turned on, or the 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.

Loudspeaker is not working. Connect the loudspeaker 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 Commercial Technical Support for appropriate troubleshooting.

Distorted Sound

The power amplifier is clipping. The signal level is exceeding the limits of your system and you must reduce the level.

Other electronic equipment is being overdriven. Ensure that no equipment in the signal chain is being over driven. For example: input(s) or summing bus in the mixing console, equalizers, etc.

Driver(s) not working properly. Contact EAW Commercial Technical Support for appropriate troubleshooting.

Partial Sound (frequency band missing)

Incorrect EQ settings in the electronic equipment. Ensure that all EQ settings and filters on the mixing console, preamplifier, or other equipment are set for normal operation. Ensure that level controls on electronic crossovers and associated amplifiers are correctly set, and that all cables and connections for such equipment are connected and working properly.

Driver not working properly. Contact EAW Commercial Technical Support for appropriate troubleshooting.

The crossover network inside the loudspeaker is not working properly. Contact EAW Commercial Technical Support for appropriate troubleshooting.

VR21 and VR51 – 13

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Contents VR21 VR51 Safety Instructions Table of Contents Introduction Mounting Precautions InstallationUnpacking and Inspection Horn Rotation Instructions Horn Replacement InstructionsLoudspeaker Cables ConnectionsPrecautions Choosing a Power Amplifier Signal ProcessingOperation Operating TipsDisclaimer SpecificationsVR51 Dimensions and Mounting Points VR21 Dimensions and Mounting PointsPerformance Graphs No Sound or Low Output TroubleshootingDistorted Sound Partial Sound frequency band missingService MaintenanceEAW Commercial Technical Support WarrantyEAW Commercial One Main Street Whitinsville, MA 01588 USA