My tv volume is at 0 but my roku volume is very high how do I adjust it

I lost my remote 2 my sound bar wat can I do 2 make it work without it

Hey chris. I just found an old sony cassette tc-rx400. I played a tape, and it worked, but then when i took it out the heads got stuck in the up position. Im wondering if uve got any insight

I need to know what remote will work with the klh kl 2400

It is brand new. I am charging it. The speaker shows lights, but will not power on. It is the BFS-6700 beFree sound. It played when it was first plugged. Then it needed to be charged and said error. This is my first time charging it.

I have an old Sharp alarm clock model spc 498 that is always running slow and losing time. Is there a way to adjust it?