Bose 131 manual Cleaning the speakers, Troubleshooting

Maintaining Your Speakers

Cleaning the speakers

Wipe the grilles using a soft cloth dampened with a mild detergent, such as dish soap. When cleaning near the speakers with a hose, be careful to avoid forcing water behind the grille, onto the driver, or into the acoustic ports.

No other regular maintenance is required.

Troubleshooting

If you have a problem with your 131TM marine speakers, turn off your sound source and try the solutions below. If one of these solutions does not solve your problem, contact your Bose® dealer to arrange for service. Or, to contact Bose directly, refer to the inside back cover of this guide. Bose Corporation will make every effort to remedy any problem within the terms of your warranty.

Problem	What to do
No sound	• Make sure the boat’s receiver is turned ON.
	• Make sure the power supply of the boat is connected and
	adequately charged.
	• 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 “Test the speakers” on page 6. Correct any connection
	errors.
No sound from one	• Disconnect the working speaker from the receiver.
speaker	• Switch the cord of the “faulty” speaker from its original
	receiver connections to the other set of connections (the
	working speaker was originally attached to those connections).
	– 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 “faulty” speaker and either set of receiver connections.
	– 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	• Follow the same procedure for the problem of no sound from one
	speaker, as outlined above.
sounds distorted
Not enough bass	• Adjust the bass and treble controls on the receiver.
	• Check the connections to make sure they are correctly in phase
or treble
	(+ to + and – to –). Refer to “Test the speakers” on page 6.

16 October 30, 2001 AM188201_02_V.pdf