Bose 12 manual Troubleshooting, Problem What to do

Maintaining Your Lifestyle® 12 System

Troubleshooting

Problem	What to do
System does not	• Make sure the power connector is plugged securely into the music center, the Acoustimass®
function at all	module power cord is plugged securely into the module, and the power pack and power
	cord are plugged into operating AC wall outlets.
	• Be sure to select a source (CD, AM/FM, etc.).
	• Unplug the music center power pack for a minute, then reconnect it. This allows the unit to
	reset itself after a power surge or power interruption.
No sound	• Make sure the audio input cable is connected to the music center FIXED outputs, the black
	connector is fully seated in the music center SYSTEM CONTROL 1 jack, and the multi-pin
	connector is firmly seated in the Acoustimass module jack.
	• Turn the music center off for ten seconds, then on again, to reestablish communication
	between the music center and the speakers.
	• Check the connections for any external components. Make sure to select the correct
	source for the desired input.
	• Check the speaker connections.
	• Be sure the CD is placed correctly, label-side up, in the music center, and the cover is
	closed.
	• Increase the volume.
	• Check to see if MUTE is lit in the display. Press the MUTE button on the remote to unmute
	the sound.
	• Disconnect any headphones.
	• Connect the FM and AM antennas.
No sound from	• Make sure that the center cube cable is connected at both ends.
center speaker	• Select STEREO+CENTER (3-speaker) or SURROUND (5-speaker) mode.
Too much sound	• In STEREO+CENTER mode, press SURROUND –, to decrease center speaker volume.
from center speaker	• Press and hold the STEREO+CENTER (3-speaker) mode key for 10 seconds to restore the
	factory preset center volume setting.
No sound from	• Select SURROUND (5-speaker) mode.
surround speakers	• Press SURROUND +.
	• Make sure the video sound source is stereo and surround-encoded, and the component
	used (TV, VCR, DVD or laserdisc player) is stereo.
Surround speakers	• In SURROUND mode, press SURROUND –.
are too loud	• Make sure that the left and right front speakers are connected to the front speaker jacks
	and the left and right surround speakers are connected to the surround speaker jacks.
	• Press and hold the SURROUND (5-speaker) mode key for 10 seconds to restore the factory
	preset surround volume setting.
Remote control	• Check batteries and their polarity (+ and –).
is inconsistent	• Operate the remote control closer to the music center.
or does not work	• Make sure the remote control house code matches the music center code. Follow steps 4-7
	on page 24 to match the house code settings.
Unit turns on	• Change the house code setting to prevent signals from conflicting with another nearby
and off by itself,	Lifestyle® system. See page 24 for instructions on setting the house code.
or acts erratically

26 December 20, 2001 AM191409_01_V.pdf