How do I fix a speaker, that has no sound/

SOURCE: I lost sound on one

first lets check
no need to open any thing

1) just trace the wire of working channel and plug out that and connect to opposite side of that channel


for example: if front left is not working, remove pin of front right and plug it into front left

after that listen the sound if front left is working then no need to open amplifier just check the wires of satellite speaker which is not working

how to check broken wire:

1) just observe your speaker nearly if you found any screw holes open it, if u can not find any screw holes remove front net which is fitted by press lock or any stepped groove, you can remove that and if you are removing front net you have to open speaker from casing then after you can find speaker's wire shouldered or bolted to it just check wire and go on after that u'll be sure that weather your speaker is failed or wire!!!

enjoy!!!!!!!!!!!!!!!

(don't forget to rate)

Steve Allison

• 5569 Answers
• Posted on Jan 21, 2009

SOURCE: Simply doesn't work

The only contact with which I am familiar was made by a friend of mine who had received one of the original Bose receivers. Some six weeks later, she learned that they had become available with a CD player so she called Bose customer service and although she was not the original purchaser (her son had given it to her on a birthday), they immediately offered to accept the unit back and she paid only the difference between the two units.
I've heard other good reports about the company's attitude toward customers so I wouldn't hold back from calling them on their toll-free number that is probably in your literature.  
Good luck, and it would be helpful if you would post back your experience (good or bad) with them to help guide others.

SOURCE: Left Channel Not Working.

Has it ever worked?

Try this - connect one pair of its speaker wires at a time and test it. Watch the polarity.

• Make sure all cube speaker arrays are connected to the proper terminals according to their
position in your room.
• Check to be sure all wires are connected to your surround receiver with the proper polarity
(+ to + and – to – wires). Incorrect wiring can result in a total loss of module output.
• Correct any wiring problems before you plug in your receiver and turn it on.

How do you know the receiver's Left channel isn't the fault? Sounds like a source issue.

SOURCE: Bose Lifestyle 20 system. sound from only two speaker

A lifestyle 20 system is stereo only. Two channels. Left and right.

SOURCE: left speaker not working

Some possibilities (your description suggests that both speakers are okay):

- a desoldered pin on the left speaker connector inside your unit or a damaged connector

- a fault or a desoldered contact on one or more components in the left channel's preamp or final amp section, or at the power supply section for that channel, also check speaker protector fuses on the board, if there are any

- a bad connector contact somewhere on the board, possibly an oxydized contact, desoldered pin or a (partially) disconnected/broken wire.

Anyway, these are just a few suggestions, but i hope they can help somewhat...

regards

3rq8 (Triarcuate)