I have a Whites Coinmaster 6000/Di Series 2 that turns on but has no sound and the meter won't register past half way, unless in battery test mode. It did not work at all when I got it. Took it apart and found a burnt connection from the positive bettery terminal to the Off/VDI Level/Battery Check potentiometer. Replaced the connection on the board now here I am. Any information or schematics about this would be appreciated.