| 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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| Back to the Troubleshooting Index |
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