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Troubleshooting
There is no power (main and subwoofer units)
• Make sure the power cord is firmly connected to the back of the unit and to the power outlet.
• If using a power strip/surge-protector, make sure that it is plugged in and switched on.
• If attempting to run on battery power, the battery may be depleted. Connect the unit to a wall outlet and
recharge the battery.
• Check the fuse, and replace if blown. If the fuse blows again immediately, do not replace it again. Instead,
contact VocoPro technical support.
There is no sound (main unit)
• Make sure the MASTER and CH 1-5/SD VOLUME knobs are set to an audible level.
• Make sure headphones are not connected. Connecting headphones disables the main speaker output.
• If using microphones, make sure they are connected properly and cables are not defective.
• If using an external player, make sure they are connected properly and cables are not defective.
• If an external effects device is connected, make sure it is powered on.
There is no sound (subwoofer unit)
• Check the cable connection to the main unit (see Getting Connected section)
• Make sure the subwoofer main volume is set to an adequate level.
• Adjust the subwoofer frequency. (see Subwoofer Features and Descriptions section)
• If attempting to run on battery power, the battery may be depleted. Connect the unit to a wall outlet and
recharge the battery.
The sound has static
• The signal level from the connected device may be high-level. Set the PAD 30dB button to ON.
No sound output, RF/AF LED(s) are not glowing (Wireless modules)
• Make sure the microphone power switches are set to the ON position.
• Make sure the UHF POWER on the main unit is set to ON.
• Check microphone batteries to ensure that they are providing sufficient power. Replace battery if necessary.
• Make sure antennas are firmly connected and extended to an optimal position.
• If necessary, reduce the distance between the microphones and receiver.
• Talk into the microphone and observe the module’s RF/AF signal LEDs. If they glow, the problem is else
where in the sound system.
Received signal is noisy or contains extraneous sounds with the microphone(s) ON.
• Make sure everything is connected firmly and properly
• Make sure there are no defective cables
• Make sure all of your components are turned on
• Make sure all of the components (amp, mixer, TV, etc.) are set to the proper inputs
There is noise coming from the receiver with the microphones turned OFF.
• This is called interference. Remove local sources of UHF interference, such as lighting equipment. In some
locations this may be unavoidable due to a frequency conflict. Contact VocoPro tech support for more
information.
Momentary loss of sound as microphone(s) are moved throughout the operating range.
• Reposition the receiver, perform a “walkthrough”, and observe the signal strengths. If audio dropouts
persist, mark these “dead spots” in the operating area and avoid them during the performance.
