Eight Ball Deluxe
Bally, 1981
Flash Gordon
Bally, 1981
Medusa
Bally, 1981You're currently viewing posts by Pinsider Mad_Dog_Coin_Op.
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Quoted from meSz:Can someone advise as to what would cause the top of all 7 digits to go out and the fix?
(Picture shows how the top of the number 8 is out on all digit that I was able to capture. All digits work, except top row. Displays just aren’t photo friendly)
[quoted image]
Transistor q13 controls that segment. Here is the cheat sheet. Replace that, and you should be all set.
B-decoder-chart (resized).jpgQuoted from meSz:What transistors are used for Q13, 2N5060? The ones on this board don’t have any numbers. Thx again!
It's on the cheat sheet. You need a MPS-A42.
Quoted from meSz:Thanks for the post and knowledge!
So, I look at all the other transistors and they have F585-30 027 on them. I’m assuming this is just a number that manufacture used at the time and MPS-A42 replaced it?
Also, when I look at Digikey site I get 35 results when searching on MOSA42. Looks as though several are just different manufacturers. What’s best replacement?
Thanks again!
That transistor goes by many names / part numbers. Do you need to purchase anything from Marco? They have them for .29 cents if you buy 10.
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