bally serves up one ball

bmmc

New member
Joined
Jun 25, 2010
Messages
19
Reaction score
0
Location
crescent city, Florida
bally eight ball deluxe.game start ball is served up & plays normal.when ball enters outhole game plays game over tune & game is over.also will not allow more than one player.game will indicate numerous players but after that first ball game over.game has been sitting in my tv repair shop unplayed for a year.game played fine when put up.mpu board self checks good,7 flashes.dip switches 31 & 32 set to off(3 ball play).any clues?
 
Weirdness like that could be caused by bad game ROMs, 5101 RAM or their sockets. The 5101 RAM is in the corrosion area so I would look there first. Is the original battery still installed? Is there corrosion?

You could try reseating the EPROMs and RAM chips. If that solves the problem I would replace the sockets.

Weird problems like that can be caused by a ton of things but I would start there.

EDIT: Before anyone asks, yes it's possible to have a RAM or ROM problem and still have the MPU boot.
 
Last edited:
Back
Top Bottom