Repairing a Gottlieb System 80 Driver board


By justininia

6 years ago


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  • 14 posts
  • 7 Pinsiders participating
  • Latest reply 6 years ago by pdman
  • Topic is favorited by 4 Pinsiders

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#8 6 years ago

Q53 should be a 2n6043 transistor q54 is an mps-u45 but you will have to get the replacement cent-u45 as the other is damn near impossible to find. I have a Star race which was the pin produced just before yours and I'm pretty sure that the driver boards are all the same for the system80 machines. Do you have a manual? If so you can look all the transistors up in it and see what all do. I will look in the repair guides and give you the possible replacements for your transistors etc.. if you just tell me what they are or where they are located.

#10 6 years ago

Justininia sent you an pinside e-mail. the help you need is in there

#11 6 years ago

You can get a replacement driver board at pbresource.com for $84.00

#13 6 years ago

Q54 is a mps-u45 but this chip should not be in use unless someone put in a coin counter as this was an option Gottlieb offered. Should be three transisors like this so you really shouldn't have to replace this and can rob the other two transistors to use elsewhere.

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