I have a Stern Magic pinball machine that is not working. I have replaced the rectifier board with a brand new one and re-pinned those connectors. I just installed a brand new Alltek ultimate mpu board as well as a brand new alltek ultimate solenoid driver board and still nothing! I do get the general playfield lights to turn on... but that's it. The game doesn't boot up.. no numbers on the displays. There are zero lights on the mpu board and the solenoid board has two led's that are solid green... they are D3 and D29. I'm brand new to pinball... I don't have a lot of knowledge when it comes to electronics. I do have a multi-meter but I'm not sure how to work it too well. Any help would be great! I will have to return both Alltek boards in about 8 more days unless I can get this game working.

#2 6 years ago

RAS

Raff

Pinside member

North Adelaide

9y 66,550 1,496 19 7

Check the rectifier board make sure your
Getting the right voltage on the board

#3 6 years ago

JWG

greatwichjohn

Great Pinball

Halifax, NS

11y 100K 4,532

Which light has no voltage on driver board? Check your contacts, & your work. You need a meter that reads DC voltage. I take it you have no 5 volts.

#4 6 years ago

NPS

nsuriano

Pinside member

Marquette, MI

7y 15,150 3 1

IT IS FIXED!!! I almost gave up because I'm just too new to fixing this stuff..... but I took your advice and checked the brand new rectifier board one more time and pulled each fuse out and tested them with a multi-meter. And fuse #3 of 6 was blown! I couldn't believe that they shipped that brand new board with a defective fuse! So I replaced the fuse and turned on the game and it works perfect! Thanks again everyone!

-Nick-

#5 6 years ago

AMS

barakandl

nvram.weebly.com

12y 132K 10,420

Hi Nick,

I think you bought one of my rectifier boards. Sorry you had trouble. I am using new cooper bussman brand fuses sourced from licensed vendor TTI. Can you take a picture of the bad fuse? I am really surprised one is bad out of the package.

With a picture you can typically tell if it was an over current failure.

Andrew

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