[stevehertz]

Welcome Rob.

First things first, do you have the necessary electronics knowledge to tackle this? What level of electronics experience do you have? It's not the end of the world if you're wanting in this department, but we need to know so as to pitch any help at the right level.

For now, do not switch the set on (when you locate that lead), as things need to be checked first otherwise you may cause irreparable damage. That's unlikely, but quite possible. Best of luck.