hi all i have just bought jpm give us a break it uses an jpm impact board i had trouble with the sound so i tried swapping the two small boards which plug into the big board around no when i turn it on the machine wont start up jst get one red light on the main board think i b roke it any ideas would be great cheers andy
sounds like u blew an eprom mate, the jpm impact mother board has 2 or sometimes three program cards that slot into the mother board, the sound proms sit on one card the game proms on the other, by swapping i think u may have killed her