Hi. I'm Steve. I'm sorry to hear about your issue. I will try my best to give you a precise and accurate answer.
I assume that you have a TV and a cable box in this arrangement?? If not, let me know what we are dealing with.
If so, how is the cable box connected to the TV?
What is connected to the Sound Bar and how?
Ok, a Boston Acoustics 30 maybe?
You are connected with an optical cable?