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 Speaker or Sound Level Solutions

 Problem: The left and right speaker sounds are reversed.

 Possible Cause

Suggested Solution
The speakers are connected incorrectly. Check to be sure that the left speaker is connected to the left speaker output, and the right speaker is connected to the right speaker output.
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 Problem: There is a low hum or noise no matter what is being listened to.

 Possible Cause

Suggested Solution
Line noise is feeding in from the AC line. Use an AC Line Filter (such as Cat. No. 15-1111) to block the line noise.
RF (radio frequency) interference is being picked up by the power line or wiring. Remove sources of RF interference, such as fluorescent lighting or wireless devices not designed to work with audio/video equipment.
Wires between the components are on top of one of the components; the transformers are causing RF interference. Be sure that wiring goes behind the components rather than on top or between components.
If there is an equalizer in use, there could be a ground loop. Ground loops can be resolved by installing GLI's (ground loop isolators) on the cables connecting to the equalizer.
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 Problem: There is only sound from one channel (left or right).

 Possible Cause

Suggested Solution
One of the speaker inputs is not connected. Connect the speaker wiring securely.
The BALANCE setting is all the way in one direction. Adjust the BALANCE control.
Unit is in MONO mode. Turn off MONO mode.
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 Problem: The sound cuts out while the music is playing.

 Possible Cause

Suggested Solution
The impedance of the speakers is less than the rating for the system. Use speakers with the correct impedance rating.
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 Problem: The power lights are on, but there is no sound at all.

 Possible Cause

Suggested Solution
The speakers are not connected properly. Check the speaker connections.
The Mute function is activated. Turn off the Mute function.
The volume is turned all the way down. Turn up the volume.
Neither set of speakers is selected (if unit has A/B buttons to select sets of speakers). Press either A or B to select a set of speakers.
Both sets of speakers are selected, but only one set is connected (if unit has A/B buttons to select sets of speakers). Press the appropriate button to deselect the speaker outputs which are not connected.
The receiver is set to TAPE MONITOR (if applicable). Turn off TAPE MONITOR mode.
Headphones are plugged into the main unit. Unplug the headphones.
The source selector is set to the wrong source. Select the proper source.
The impedance of the speakers is less than the rating for the system. Use speakers with the correct impedance rating.
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 Problem: There is a low bass response.

 Possible Cause

Suggested Solution
The speaker polarity (+/-) is reversed. Check all of the speaker connections for correct polarity.
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 Problem: There is no sound from the surround or center speakers.

 Possible Cause

Suggested Solution
The speakers are not connected properly. Check the speaker connections.
The sound level on the rear or center speakers is turned down. Adjust the sound levels.
The receiver is not in the proper surround mode. Set the receiver to a surround mode.
The speaker settings are incorrect. Check the settings as per the user's manual.
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 Problem: The surround sound is not playing properly.

 Possible Cause

Suggested Solution
There is an active equalizer in the system. Dolby« Surround does not operate correctly if the signal passes through a graphic equalizer. De-select the TAPE MONITOR connected to the equalizer when you listen to Dolby« Surround signals.
The signal level is turned too far down on one or more speakers. Use the test tone feature to balance the signal levels between all your speakers.
The system is not in the correct mode for your sound source. Check the system by putting the receiver into simulated surround mode. If it plays through all speakers correctly, then the source is not encoded for the mode you selected.
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 Problem: The rear speakers only provide sound highlights.

 Possible Cause

Suggested Solution
This is normal operation for rear speakers in surround mode. None.
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