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SAM SYSTEM SHAKER MOTOR ISSUE

wastestudio

wastestudio

Registered
Joined
Jul 6, 2024
Messages
35
Location
Nottingham
Hi all

Firstly HNY!

I've got an issue with my newly installed shaker motor from pinball heaven - I've litrally just installed it into my Metallica LE all connected correctly but as soon as I turn the power on the machine the motor runs at full belt and doesnt stop! any suggestions folks?

many thanks in advance

Norm
 

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Looks correct disconnect that and re power up machine
If it stops which I think it will then it’s probably a locked on transistor on the driver board
 
Thanks Chris tried that but no luck still does the same. Probs a novice question but is the driver board on the machine or the board that comes with the shaker motor?
 
Driver Board is in the backbox, I believe the board that comes with the shaker is an AC to DC conversion board, if its activating with the brown wire disconnected it sounds like the converter board it came with is faulty or has been shorted somehow.
 
Ok that’s good to know basically with the brown wire disconnected the motor doesn’t run so it must be a transistor fault - do you know the best route to test this?

Really appreciate the help
 
I’ve followed the brown wire and it looks like it connects here to the driver board so I’m guessing it’s one of these transistors that are causing the problem?
 

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Hey Guys do you know where and what the best replacement is for the stock BUK9529 100B Mosfet - I've found that this is what is causing the issue with the Metallica LE shaker motor and I need to replace the Q8 one but cant find the equivilent online anywhere?
 

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From Pinside :

IRL2910 is a good replacement for the stock NXP buk9529 MOSFETS.

I had my dancing band coil lock up and in addition to adding a nice smoke show it also killed the drive transistor. When I looked into a replacement, it turns out the game uses a unique MOSFET instead of the typical TIP transistor. And of course it is an obsolete and unavailable part. After studying a few datasheets, I found a good replacement. The original component is NXP buk9529. There are four of these on the auxiliary driver board 520-5325-00 (https://www.marcospecialties.com/pinball-parts/520-5325-00) labeled as Q1-Q4 (the ones with the giant heatsinks). They control the bell magnet, dancing band and two other things I don't remember. The replacement part is Infineon IRL2910 (https://www.mouser.com/ProductDetail/942-IRL2910PBF). To feed my neurotic tendencies, I also added a little dab of thermal paste to the heatsink interface on install. I am happy to say it all works as expected and the little dancing guys are back at it. I hope this info comes in handy.
 
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