User Guide

User Guide
Troubleshooting: Altec Lansing Computer Speaker System ACS90

Troubleshooting: Altec Lansing Computer Speaker System ACS90

Symptoms Possible Problem Solution Note
Distortion
(that is, static, crackling, hissing)
Speaker is being overdriven by an amplified audio source. Make sure speaker is connected to line-out jack (unamplified) of sound card and not to speaker-out jack (amplified); refer to color coding when making connections. Depending on your sound card, you may also turn off the amplifier on the sound card (check your sound card's user's guide).
  Noise may be caused by interference from the monitor. Turn off monitor to see if noise is eliminated. Move cables away from monitor. If this product is placed too close to a high-level source of RFI energy, RFI breakthrough may be experienced, which can cause some audio disturbance. If this happens, move the product as far away as possible from the source until the disturbance is eliminated. Using an audio input cable with a high percentage of shielding is also helpful in reducing or eliminating interference.
  Volume level on the sound card or other audio source may be too high, causing speaker to be overriden. Check volume level of sound card or audio source, and lower as necessary.  
  Sound card or specific sound tile or track may be the root of the problem. Test speakers using another audio source (CD-ROM player) to see if the sound card or specific tile or track may be the problem. For this check, disconnect the speakers from the sound card and plug them into the headphone jack on the front of the CD-ROM player or alternate line-level audio source.
No sound from speakers No power to speaker. Make sure all connecting plugs between the satellite speakers, subwoofer, and computer are fully seated. Make sure the wall power outlet or power strip has power. Make sure the power switches on the power strip, satellites, and subwoofer are turned on. Provided power has been verified, it is possible to test the speaker by pulling out the audio cable that is connected to the computer and connecting it to an alternate audio source, such as a portable CD player.
  Volume level on sound card or other audio source may be too low. Check volume level of sound card or audio source and raise as necessary. Test using an alternate audio source as mentioned above.

 

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