Bose 251B Руководство пользователя - Страница 12
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Maintaining Your 251
Troubleshooting
Problem
Neither speaker plays
The bass or treble is weak
Only one speaker plays
Only one speaker still plays
Warranty period
Customer service
Cleaning your speakers
Protecting the speaker wire
12
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Speakers
What to do
• Check the settings on your receiver or amplifier. Refer to the owner's guide that came with
it for instruction on settings.
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• If your 251
speakers are connected as a second set of speakers to your receiver or
amplifier, check that the connections have been made to the "B" terminals and that
the "B" speakers are selected to play.
• Check the tonal balance setting on your receiver or amplifier.
• Check the balance control on your receiver or amplifier and make sure it's centered.
• Check the wires connected to the speaker that does not play. Make sure the wires are in
good condition and are firmly connected. Review the "Making the connections" section on
page 9.
• Disconnect the working speaker from the receiver or amplifier.
• Switch the cord of the "faulty" speaker from its original receiver or amplifier jacks to the
other set of jacks (the working speaker was originally attached to those jacks).
- If the speaker now works, the problem is in your receiver or amplifier. Reconnect your
speakers to a working unit.
- If there is still no sound from the speaker, continue below.
• Remove the cord from the working speaker and connect it to the "faulty" speaker.
- If the speaker now works, the problem was in the original speaker cord.
- If there is still no sound, the problem is in the speaker.
• If trouble persists, contact your authorized Bose
contact Bose customer service. See the inside back cover of this owner's guide for a list of
phone numbers.
Bose 251 environmental speakers are covered by a limited five-year transferable warranty.
Details of coverage are on the warranty card that came with your speakers. Please fill out the
information section, detach, and mail it to Bose.
For additional help in solving problems, contact Bose Customer Service. See the inside back
cover for offices and phone numbers.
Use a cloth dampened in mild detergent and water to remove dust or dirt from the outside of
your 251 speakers. Or use a hose to rinse them thoroughly with fresh water. Do not use
enough pressure to force water behind the grille and into the drivers or the acoustic ports.
The bare ends of the speaker cord can be affected by exposure to the elements. This is
especially true of saltwater exposure. You may use a silicone caulking material, such as RTV
adhesive, to protect the connections. It is commonly available at hardware stores. If you do
use caulking, apply it only after the wires are connected and the knobs tightened down.
Check the connections annually, and reapply as needed.
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dealer, who will arrange for service. Or,
October 30, 2001
AM250811_04_V.pdf