(Topic ID: 154599)

Calling Bally 6803 Experts! I am lost!

By mtgedney

5 years ago

Topic Stats

  • 7 posts
  • 4 Pinsiders participating
  • Latest reply 5 years ago by mtgedney
  • Topic is favorited by 1 Pinsider


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#1 5 years ago

I have a Bally Special Force that is giving me a lot of trouble. It has worked nearly flawless for a few months but no longer. About a week ago the 5amp fuse for 43 vdc blew. It gave errors of Inline top, mid, bottom, and weapon dt upon start. Basically, that was the machine telling me it could not reset the drop targets. I replaced the fuse and the very next start went fine, started a game and the right flipper was machine gunning. Upon closer examination, one of the small wires from the coil to the lug had snapped. I assumed that perhaps this was the cause of the blown fuse. I replaced the coil today. Started the game, engaged the right flipper and lost power to all solenoids. No blown fuses (both in backbox or under the playfield). There is no power to the solenoids. Self test does not engage any solenoids. What should be my next test to try and diagnose this machine? The same errors of Inline Bot, Inline Mid, Inline Top, Weapon DT show. You cannot play the game due to this. Thank you so much for reading and please help if you can...

#2 5 years ago

Get the manual/schematics.
Start where power originates on the rectifier board.
Follow the power path with your DMM.
You'll find it.
Chris Hibler - CARGPB #31
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#3 5 years ago

Are the fuse holders tarnished and black looking? my strange science would randomly blow fuses, replaced all the fuse clips and reflowed the connectors for the plugs and she was good to go.

#4 5 years ago

Think this might be it LOL? T4 on power module have proper voltage however no power to any coils. It is the c10 dale 10w, directly above the FU1. Still doesn't resolve why?


#5 5 years ago

are you sure you hooked up the new flipper coil correctly? if you do it backwards it will immediate blow the coil fuse. also might smoke the fliper coil diodes too. (if they short then no matter how you have the flipper coil installed, correct or incorrect, the coil fuse will blow.)

#6 5 years ago

Well that was not the issue. Took both boards to local pinball shop and both boards are healthy and checked out ok. Please help.

#7 5 years ago

Found a frayed common on one of the coil lugs. Problem solved. Thx

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