Control pod failure on bose companion speakers , the sound stops

Anti Corrosive Lubricant Spray try this and see what happens.

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Take it to your Bose service agent

Hi, This could just be a sign that your Speaker system is wearing out , and done its due...Also have you had any Power Failures or surge's Lately , if so then it could of damaged the Speakers aswell..
Hope you come right bud
Happy new year

Metal detectors/ Xray devices have been known to destroy magnet based electronics (speakers). This could be your problem.

check if the volume control needs to be replaced. volume controls gets bad in due time coz of the carbon layer which gets thinner and thinner till it gets cut off

had the same issue. Trial and error - I tried shorting every pair in the control pod dock with a paper clip. Turns out it is totally possible to bypass. You need two: top row, right side to third row, one from the right (below it by two spaces), and second row (there are only two in the second row, connect them). One tells it to turn on, the other passes audio through. I'm only getting sound from the right channel, so probably need to connect one more pair...

Read more: Can i operate my bose companion 3 without the control pod? - I lost my control pod. can i go around it. :: Ask Me Fast at http://www.askmefast.com/Can_i_operate_my_bose_companion_3_without_the_control_pod-qna6342714.html#q3658086

Hi,
You can purchase it from amazon, click here Amazon com bose control pod and choose, which one fits to you.
I hope I was helpful
enjoy

try to check the circuit board with an expert

Try changing the plug on the control pod, those plugs are fairly weak and prone to breakage. Does there appear to be any strain at all on the plug itself? if so then that is where I would start. If you have a series 2 then I can help you, or if you can find out if the 2 control pods are the same, that would be fine too, but I have a series 2 system companion 3 and if needed I will cut my cable to trace the wiring and then replace your plug for you. my cost for this would be $40, that includes return shipping with priority mail.