1
Bally Electromechanical / Bally 742-A blowing fuse
« Last post by newkid3 on Today at 02:57:55 PM » Hello all, I have very little experience with Electro mechanical slot machines. I have a Bally
742-A that is blowing the 50v 3 amp fuse. I have done some troubleshooting. I pulled the hopper and reels out of the machine. I also unplugged both door plugs. Then I plugged the machine in and pushed the door switch in just to make sure everything was connected. I then unplugged the machine and checked the fuse and it was still good. So then I hooked up the top door plug and plugged the machine in pushed the door switch. Checked fuse and it was still good. So then I plugged the bottom door plug in and did the same test. It blew the fuse. It seemed like it did not blow the fuse until I pushed the door switch in. It sounded like the counter clicked when I pushed the door switch in. Then when I checked the fuse it was blown.
So I put everything back in the machine and connected the top door connector but left the bottom connector unplugged. I plugged the machine in and pushed the door switch and the fuse did not blow. So it has to be something on that bottom connector.
Is there a manual and schematics out there for this machine?
Would anyone know what I should check for a short from the bottom door connector?
I checked for a short between the cabinet and all of the wires in that plug on both sides of connector but did not find a wire that showed a short. I just thought of something I did not have the door switch pushed in when I was testing the connector wires for a short.
I would really appreciate any help you could give me. Thanks
742-A that is blowing the 50v 3 amp fuse. I have done some troubleshooting. I pulled the hopper and reels out of the machine. I also unplugged both door plugs. Then I plugged the machine in and pushed the door switch in just to make sure everything was connected. I then unplugged the machine and checked the fuse and it was still good. So then I hooked up the top door plug and plugged the machine in pushed the door switch. Checked fuse and it was still good. So then I plugged the bottom door plug in and did the same test. It blew the fuse. It seemed like it did not blow the fuse until I pushed the door switch in. It sounded like the counter clicked when I pushed the door switch in. Then when I checked the fuse it was blown.
So I put everything back in the machine and connected the top door connector but left the bottom connector unplugged. I plugged the machine in and pushed the door switch and the fuse did not blow. So it has to be something on that bottom connector.
Is there a manual and schematics out there for this machine?
Would anyone know what I should check for a short from the bottom door connector?
I checked for a short between the cabinet and all of the wires in that plug on both sides of connector but did not find a wire that showed a short. I just thought of something I did not have the door switch pushed in when I was testing the connector wires for a short.
I would really appreciate any help you could give me. Thanks