mrbill2084
Well-known member
bally mcr tapper power question.. Audio noise on hacked in switcher..
I am fixing a friends tapper. Someone hacked in a switching power supply. they tossed the original power supply, cut the wires off 1 connector and wired them directly to the switcher.
The game had no audio. The grey-black wire(j1 11) +12v to the dual audio amp and the white-green audio return(j1 6) wires were not connected but cut out.
Connecting them to +12v and ground gets audio. But it makes a loud noise for about 15 seconds when it boots up and again for about 15 seconds during and after setting high scores.
I think it might have something to do with battery. Anyone know a quick fix for this or should I fix the connector and drop in an arcadeshop power supply? I would also assume the coin door lights are not connected, but I have not gotten that far on it..
I am fixing a friends tapper. Someone hacked in a switching power supply. they tossed the original power supply, cut the wires off 1 connector and wired them directly to the switcher.
The game had no audio. The grey-black wire(j1 11) +12v to the dual audio amp and the white-green audio return(j1 6) wires were not connected but cut out.
Connecting them to +12v and ground gets audio. But it makes a loud noise for about 15 seconds when it boots up and again for about 15 seconds during and after setting high scores.
I think it might have something to do with battery. Anyone know a quick fix for this or should I fix the connector and drop in an arcadeshop power supply? I would also assume the coin door lights are not connected, but I have not gotten that far on it..