Question about Bose 3·2·1 II System

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Sound keeps turning off

When I turn my Bose onto any source, it has started turning the sound off after a few seconds. If I turn it off and on again, I get sound again for a few seconds. Sometimes it seems to stay on for a couple of hours after I turn it off and on enough times, but I can't understand what is happening. If I turn it off again I am back to square one, and the same thing seems to happen if I alter the volume - though I am not certain about that, it may be coincidence. Any ideas please?

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Re: Sound keeps turning off

We had the same problem, we unplugged and re-plugged in the Bose unit and the sound problem stopped!

Posted on Oct 15, 2007

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I have lost my sound from TV through the Bose Lifestyle 48 recently. All other sound sources work fine- DVD/CD, FM/AM.

Hello Sunny,

No TV model... came through with your
Bose LifeStyle home theater question...

I'm just going to mention that I have seen a couple of available configurations... depending on your signal source... BROADCAST, CABLE, SATELITE... (etc.)...

If it is Just your intention to source from the TV...
THERE (at the TV)...
It might be as simple as going into "menu" ... then move down to your "AUDIO" PROFILE.. and make sure your external speaker OPTION is showing "ON" (or "equipped")...

on your TV and making sure your PRIMARY volumes sources & destinations (Bose) volumes at acceptable levels... so as to not FRIGHTEN your neighborhood when the sound does come through)

No success ... comment me back with your TV signal source...
HMDI or optical outputs... (and does your AUDIO Work in STAND-ALONE on the TV... Now??)

If all else is working on the BOSE... I don't think we need to continue there...

Comment me back if you need... I'll be around!

Post comments... addendum

(I did say Menu... (twice))...

RESET , General:

This operation will clear all of your customized settings.

V... depicts the volume down button on your remote
(immediately above the "menu" button).

With the set turned off...Stand in front of TV.

At the right side on the TV set... locate the power
button on the right side...

WHILE holding down the V (on the remote)
Turn on the TV POWER button on the TV.

(The TV will turn itself off, then back on again.)

Then ... V (symbol) Release the button.

This operation will clear all of your customized settings...

I'll still be here... comment me back... if you need.

Hope it helps

ELSE ...
We need to move on to your PCBs

Jul 21, 2016 | Bose Lifestyle 48 System

1 Answer

My Bose cinemate 1 sound keeps cutting in and out. What is the most likely solution?

Chances are it has what is called a cold solder connection /or the audio ic heats up and cuts out

Oct 10, 2015 | Bose "CineMate 1 SR Digital Home Theater...

1 Answer

Bose 321 series II giving very dull sound in all inputs. Occaisionally the sound cuts and comes back with full and bright trebble, but then cuts back to original dull sound. I cant see anything the ad

Try the following:

1) Switch the unit off completely, using the powerswitch on the back of the bass box.
2) Switch the unit back on via de switch on the bass box.
3) The display should read BOSE 321 and than be dark.
4) Insert a CD and switch the unit on with the remote by selecting the CD/DVD mode.
5) When the sound is now OK, it means that you need to contact Bose to ask them for the latest software update for your unit. After updating your system. The problem will not reoccur.
6) in case the problem continues and at start-up using a CD, no improvement of sound is heard, the system should go into repair. Contact Bose in your country and ask for return instructions.

Jan 13, 2014 | Bose 321GS Series II System

1 Answer

I am experiencing distortion on my bose lefestyle 38. I only notice when playing dvd's or hd channels that have 5.1 sound. Any ideas?

Completely power down the system, by first turning it off, then removing the power cord from the wall socket. Wait a minute or two. Then, reconnect the power, and turn on the system. This should clear up the problem.

For future reference, it is good to use a top-quality surge suppressor, at the power source, to protect your Bose Lifestyle sound system.

Dec 29, 2009 | Bose Lifestyle 35 System - black Theater...

2 Answers

Bose 321 Series III Lateness

This depends on the source. If this happens internally (from a DVD in the 321) then the problem should be able to be resolved by just resetting the 321. (unplug the power cord from the sub for 30+ seconds) -If this is from external sources like a cable box, believe it or not, you can reset the cable box the exact same way. If resets don't fix this (and this is external) then check the cable box's settings for a/v delay compensation.

Jun 19, 2009 | Bose 3 2 1 GSX System

1 Answer

Outside bose speakers keep turning off after a few seconds

It sounds like the speakers are either peaking and shutting down or they are dodgy. Check the volume going into the speakers and turn it down see if that works, otherwise take the speakers back. It might be worth trying a different set of speakers as well

May 24, 2009 | Bose Lifestyle V30 Home Theater System -...

1 Answer


This was posted a while ago, so I'm sure it's probably been solved by now. For anyone with audio issues using this or any other Lifestyle system: If you experience audio problems (no audio, intermittent audio) from more than just 1 source (especially if it involves internal sources like DVDs or the radio) then just reset this by unplugging the power for about 30+ seconds from the bass module and the media center DC power. Check the audio input cable (multi-pin din going from the media center to the bass module) for bent pins.
If this doesn't solve the problem, you could try replacing the input cable, but those are usually pretty robust. You could call Bose at 800-367-4008 for tech support or to set up a repair if this fails.

Dec 14, 2008 | Bose Lifestyle 38 DVD Home Entertainment...

2 Answers

Bose lifestyle no sound

Hi, best practice when troubleshooting a no-sound Bose Lifesytle system is to first begin with the internal sources (i.e. the AM/FM). Bose Lifestyle system when connected properly (media center and bass box via the data cable) should show a steady green light underneath the bass module. Begin by simply playing AM/FM tuner and try to increase the volume till 45 (normally the sound becomes audible at this level). If the system still has no sound, then try to check if the bass module is steady green. When you see a blinking green LED (slow green) then do kindly check the DIP siwtch (red latch switch with white mini switches) just beside the Light and data connection. All of the switches should be in "ON" position (basically toggled upwards with the arrow marking indication). Before changing DIP switch settings do ensure that the bass module is not connected to the electrical power. after ensuring that all DIP switch are in the "ON" position, connect the data cable firs and then power up the bass module. Then you should see the bass module blink green twice and once you turn on the nedia center, the green blinking should turn steady green. That should sort out your problem.

Also do note tha this procedure applies only to Series II Lifesytle System and does not include the Series IV (with the smaller bass module).

If all still fails, there is an internal problem with the bass module which would require servicing.

Hope this helps!

Jan 27, 2008 | Bose Lifestyle 18 System

1 Answer

Power off and on again and then no sound present

i assume pressing the source button on the remote control is how you normally turn it on again, (ie video FM CD etc)

it might be that moving the unit to the cabinite the battery power in the remote ( its not infra red its radio wave thay are not picked up by the fm antenna ) is insufficient to wake it up again,
change the batteries in the remote or try to see if there is some weird reason the cabinet is preventing these remote control radio waves from being recieved by the head unit, try opening the door and bring the remote within a few inches of the head unit and see if it turns on when you pres the cd button.

see how you go from there mate

Nov 30, 2007 | Bose Lifestyle 12 System

1 Answer

Lifestyle 12 by Bose

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 , and last but not least. Make sure there is power going to the remote speakers or the unit will not communicate with them. Good Luck

Jun 14, 2006 | Bose Lifestyle 12 System

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