Peale
Active member
Was looking at a US Amusements air hockey table, yesterday.
The scoring for one side wasn't working at all, and when I looked at it, it was because someone had disconnected the scoring switch.
Once reconnected, pretty much one shot on that switch would end the game. If you were very quick, you could trigger the switch, and perhaps score only five points, instead of nine, allowing the game to continue - at least, for that next shot.
So...board issue. Took it with me.
I'm going to assume some kind of stuck input? Perhaps, the MDP1403, which appears to handle the input? I mean, it handles both P1 and P2, but P1 works fine.
Thoughts? This is my first air hockey table circuit board repair. Schematics?
The scoring for one side wasn't working at all, and when I looked at it, it was because someone had disconnected the scoring switch.
Once reconnected, pretty much one shot on that switch would end the game. If you were very quick, you could trigger the switch, and perhaps score only five points, instead of nine, allowing the game to continue - at least, for that next shot.
So...board issue. Took it with me.
I'm going to assume some kind of stuck input? Perhaps, the MDP1403, which appears to handle the input? I mean, it handles both P1 and P2, but P1 works fine.
Thoughts? This is my first air hockey table circuit board repair. Schematics?

