I have 2 old super 6 plus 2 dart boards. One of the boards the darts do not register on certain segments. I dont know what to look at to fix it. The other board works but has no sound and the transformer gets super hot and starts to smoke if I play for more than a minute. I swapped transformers and it did not fix the overheating issue. Any ideas on what might be the problem on either of my boards?