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If either of the above should happen, you should reduce the volume
setting or shut the unit off until normal operating conditions return.
You may also want to plug the unit into a different wall outlet, as
dropping power line voltage will be most noticeable under strenuous
conditions and may result in the unit shutting down intermittently.
Troubleshooting and Service
If you should experience a problem with the operation of your
subwoofer, please check all of the following before seeking service.
Following is a simple troubleshooting guide to assist you.
1. Verify that the unit is plugged in, the power outlet is active, and
is supplying proper voltage.
2. Is unit receiving an input signal from your source?
3. Have all controls on subwoofer (volume, crossover, phase, etc.)
been properly set?
4. If unit has been running at high levels for an extended period of
time, one of the protection circuits may be engaged.
• Is the built-in amplifier extremely hot to the touch?
• Is your power line voltage sagging, such as when there are
other devices on the same circuit drawing lots of power?
If the protection circuitry is active, the unit may cycle on and off
until operating parameters return to normal. Under more serious
conditions, the unit may shut off completely. Normal operation should
return upon cooling, but you may be required to turn the power off
and then on again to reset the unit.
The following conditions require service by a qualified technician:
1. The power cord has become damaged.
2. The unit does not appear to operate normally or exhibits a marked
change in performance.
3. The unit has been exposed to water.
4. Some part of the cabinet or circuitry is physically damaged.
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