Rca Selectavision Sgt-100 W Ced Video Disc Player

It powers on adn takes discs and plays them just fine. However, there is an issue whish I believe to be an IC needing to be replaced because there is no audio. Also, the picture sometimes has flashes of all colors of the rainbow, sort of like a prism effect (I don;t know how else to describe it) which I am told is the result of the belt's tightness needing to be adjusted. The unit itself is in great shape and all buttons and switches work perfectly. It was owned by one person who has had it since he bought it new until I acquired it from him last week.
The Spider Man CED in the pictures is not included, but will be for sale along with other titles in my other listings.
The best offer option is active, so please feel free to use it. Please contact me with any questions.  Thanks for looking.