Reference, Troubleshooting, Customer service

Reference

Troubleshooting

Problem	What to do

No sound	• Make sure the receiver is plugged in and turned on.
	• Check to be sure the AC power (mains) outlet is working.
	• Disconnect any headphones plugged into the headphone jack.
	• Make sure the receiver is not set to MUTE.
	• Refer to the owner’s guide that came with your receiver.
	• Check connections to both the speakers and the receiver. Refer to “Making the
	connections” on page 6. Correct any connection errors.
	• If your Free Space® 51 speakers are connected as a second set of speakers to
	your receiver/ampliﬁer, check that the connections have been made to the “B”
	terminals, and that the “B” speakers are selected to play.

No sound from one speaker	• Check that the balance control on your receiver/ampliﬁer is centered.
	• Check the cord connecting the receiver/ampliﬁer to the silent speaker.
	• Disconnect the working speaker from the receiver. Switch the cord of the silent
	speaker from its original receiver terminals to the other set of terminals (that the
	working speaker was originally attached to). If the speaker now works, the
	problem is in your receiver. If the speaker does not work, continue below:
	Remove the cord from the working speaker and connect it to the silent speaker
	and either set of receiver terminals. If the speaker now works, the problem is in
	the original speaker cord. If the speaker does not work, the problem is in the
	speaker.

One speaker sounds distorted	• Follow the same procedure for the problem of “No sound from one speaker,” as
	outlined above.

Not enough bass or treble	• Check the tonal balance setting on your receiver/ampliﬁer.
	• Adjust the bass and treble controls on the receiver.
	• Check the connections to make sure they are correctly in phase
	(+ to + and – to –). Refer to “Make the connections” on page 6.

Customer service

For additional help in solving problems, contact Bose® Customer Service. See the list of service centers and phone numbers enclosed in the shipping carton. Bose Corporation will make every effort to correct problems within the terms of your warranty.

Warranty period

Free Space 51 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 informa- tion section, detach, and mail it to Bose.

Cleaning your speakers

Use a cloth dampened in mild detergent and water to remove dust or dirt from the outside of your Free Space 51 speakers. Or use a hose to rinse them thoroughly with fresh water. Do not use enough pressure to force water into the drivers or the acoustic ports.

8	AM268612_00 _V.pdf • January 10, 2003