I have no sound from speakers on my bose lifestyle 20 music center. But i can hear music on cd and radio through headphones. Once in a while i hear a short blast of music from speakers with headphones but thats it. I checked all wires and connections, all look good.

SOURCE: No output from Bose Lifestyle 12 system

Sounds like you have a problem in the circuits, which of course would take an experience technician to find and repair. But a 1994 electronic item has pretty much reached the end of its expected life cycle (sadly, compared to older equipment which is still working great). Basically, it sounds like the power amp circuit is shutting down a few seconds after startup. Might check to make sure no speakers or cables have shorts, which could activate a protection shutdown circuit. If any of the cubes don't hiss when you turn it on, that would be the first place to look for a problem.

Posted on Dec 29, 2008

SOURCE: Bose lifestyle 12 music center display inop

My display has not been working for years. Replaced c17 cap wich was 33uF 63 volts on lower pcb board( only one on system) . Old cap was good so this was not the problem. Replaced c16 wich was 100uF 25 volts with a 100uF 63volts. Display works, old cap read low. Both c17, and c16 are located on the lower left hand corner of the larger pcb looking from the front of the unit. Hope this helps.

Posted on Jan 15, 2009

SOURCE: No sound Bose Lifestyle 38 III

I am quite sure that the indicator lights should be green. The blinking yellow likely indicates that there is no communication between the head and the audiomass. Verify that the connections are tight and then try powering off (unplugging) the system (both head and audiomass) for 30 seconds and then powering on again. That will often re-establish communications.

Posted on Aug 22, 2009

SOURCE: Bose Lifestyle 28 Sound Problem

I also get this problem sometimes with mine. Usually when you call Bose they suggest that you do a "hard" reset meaning you unplug the power cord from the wall and wait about one min. Then plug the unit back in and it should work.
The other thing that you can try if the system still isn't working is to check that all the wires running into and out of the sub-woofer are all plugged in and aren't loose.


If either of these two solutions don't work you can alway call Bose tech support @ 1-877-210-3782 (they are open Monday – Friday: 8:30 AM – 8:00 PM ET)

Posted on Apr 08, 2010

Testimonial: "Thanks for your support. Unfortunately i had to send the system to Bose for repairs. Thanks anyways. "

Jack

• 387 Answers

SOURCE: The laser is defective on my Bose Lifestyle 20

Hi
do you know for sure that the laser is defective did a technican check it if yes and its defective i have parts for Bose
i will check and let you know maybe i have the part
let me know if you still want to fix the Bose
[email protected]

Jack

Posted on Oct 21, 2010