I have a bose companion 3 series ii my base speaker has an broken audio input that i'm trying to fix can anyone help me Please!!!!

Maybe a tranformer burnout, this is the most common cause, refer to a Bose service center

What type of connections does your tv have, hdmi, component? Match up the connection from the bose series 3 to your hdtv. I don't want to assume that your tv has hdmi, which would provide the best signal throughput & quality.

try using it on some CD player or mp3 player or connect it to any audio out jack in TV or music system

Hi there , and happy new year ... The Cables are usualy Colour Coded , so try plug the Green Color coded Wire into the Green Jack Socket ...make sure it isnt connected to the Microphone socket..
Hope this Helps Bud
Have a Great Year: )

try reinstalling the software for them then make sure your sound card drivers are installed properly

use 220 volts , 50 watts

I had the same problem for many months. I asked a sound & video professional and he suggested I move the subwoofer away from any power source. I had the subwoofer next to my UPS. Once separated and moved all wiring away from the power supply (about 12") the low bass hum was practically gone.

oh ok. I'll chek the input again Thanks

make sure there turned on or make sure it`s in the right AUX input

This is a common problem it seems with the electronics within the speaker set. (Companion 3 with sub and remote pod, aka, 'puck' = help desk support term)
I bought the multimedia speaker set in 2004 and had it replaced in 2005 because the 'puck' would not turn on (no orange light nor green light.) So I called help desk and they accepted the warranty exchange and I mailed the entire system (speakers and all) back to Bose in Markham, Ontario, Canada and they sent it back several weeks later. It worked 5-6 years after that as it is 2009 now, and it has the same problem again (no light on the puck). So I called help desk again and was ran through the same tests again (on/off, power plug off, various audio inputs, etc.) and the guy said to mail it in and they'd fix it as a non-warranty item. Cost: $85(Cdn) for repair + taxes, and $39 for remote pod.
So the sound that I got to enjoy from the Companion 3 system was amazing but electronic quality is very poor. For a set that cost above most other home user sets at FS and BB, it is substandard longevity.
I like Bose and have no complaints about the sound, but I will not buy another Bose multimedia package because at $350 (in 2004), I would expect it to outlast other sets. My friend bought a Logitech speaker set from another company in 2003 and is laughing at me as he realizes this is my second set and it hasn't even lasted as long as his own set.