Arcade Repair Tips – Adjusting A Coin Mech

Welcome to the Arcade Repair Tips Video Series! In this video, Tim Peterson will show you how to adjust a coin mechanism so that your arcade game can collect money. For more information, please visit our website at and please watch for more videos in the Arcade Repair Tips Video Series! Thanks for watching!

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31 Responses

  1. mrgateway2150

    you got a good video here i recomend you to do more!

  2. Kenny Vang

    I cant see anything please be a little more creative on using the camera"

  3. dman1823

    Do you happen to know how to modify a Japanese coin mech? I would like it to accept quarters but it doesn't have the screw like in your video to adjust the size of a coin it accepts.

  4. djfreebey

    im looking get a America Style Single Coin Door Assembly but i need to fit the 1 pound coins can a usa mech be chage same way do this? or will i have chage mech systom

  5. Arcade Repair Tips

    @djfreebey We don't know if an American coin mech will allow for a 1 pound coin to pass through or not. It looks like the 1 pound coin is close to the size of a token so a token mech might work. That being said, however, you should be able to get a coin mech that will work for the 1 pound coin.

    We have also featured your question on episode 15 of our Q&A podcast. Please listen to it for more of our thoughts on your question. Thank you for your question and good luck with your future repairs.

  6. dagonz64

    Do you know any bill validator i can use on a pc based system that will work with programs like sk jukebox

  7. Arcade Repair Tips

    @dagonz64 Not off hand. We would recommend getting in touch with the MEI group. They are a manufacturer of bill acceptors and might be able to give you some details on how to accomplish this. That being said, you could try hooking up a bill acceptor to a keyboard encoder (like an iPac or KeyWiz) and mapping it in your software. I would think that would work.

  8. Arcade Repair Tips

    @dman1823 Unfortunately we do not. You should, however, be able to replace those coin mechs with ones that take quarters. Most coin mechs slots are pretty standard and should allow you to change them out. Let us know if you have any trouble with this and we'll help you out.

  9. Arcade Repair Tips

    @beinteresting This really depends on the game. If your game is older (pre-2000) then it probably uses DIP switches to adjust these settings. In order to set it to coin play, you will need to do a search for your game in Google with the words "dip switch settings." This should tell you what you need to change to set it. If you need help adjusting the dip switches, we have a video on Adjusting Dip Switch Settings that can help you out.

  10. Quintin Lourens

    Hi there, I'm on the verge of building a mame arcade cab, already ordered my controler and joysticks, buttons etc from xgaming, I want to buy a coin acceptor aswell, I'm situated in South Africa, but I'm not sure if the ones on the net will accept South African currency, if possible, please help me? Just to conferm if it will help, searched south african websites for coin acceptors but not getting anything.
    Thanx in advance, like your vids.

  11. Ben

    Would you happen to know how to adjust the coin mech on a 1950's jukebox to accept customized tokens? It currently accepts quarters

  12. The Headless Horseman

    Thank you very much for making all these helpful videos on arcades. I just got MK2 last weekend.

  13. James Thompson

    Do you know how to determine if my coin mech is broken or can be adjusted? I was hoping to see a video on how to disassemble and replace it. It's a midway galaxian cabinet that is very similar to the pinball style. The coin mechs are made by Coin Mech. When I push the metal button to let the coin out, the button is really hard to press. How do you fix / adjust the button for the coin release?

  14. rob lilley

    i work at maggi maggi in england we repair and reprogram allsorts of fruit machine power supplies mpu5s mpu4s pluto boards electrocoinboards tft monitors change machines note validators vending changers jukeboxes amps and a wide range of coin validators,

  15. TitoMysta3000

    just bought my first cab and am enjoying this new hobby of fixing em up your vids are super helpful. I do have a problem though with my cab it seems like some cables are missing to the coin door cut off but i really dont know where they would be wired to. by any chance is their a video on how to wire up the coin doors or some tutorial some where because i cant find one at all. i also have a cable that comes out of the coin box where money goes at the end that is not attached to anything. thanks

  16. Transam4000

    How do I remove the bulb from the coin mech?

  17. Transam4000

    Where are you located?

  18. Transam4000

    Can you come to Indiana?

  19. BumbleBjorn

    Nice autobot tshirt 😀

  20. Dylan Miles

    i bought it yesterday (9/11/1012), it was 2nd hand but the owner before me bought it from someone else a week ago and the owner i bought it from sold it because he got bored and he never played with the settings, i know how to change the per play price and jackpot price on the money mech it says accepts
    £0.05 ,£0.10 ,£0.50, £1.00, £2.00
    i dont thing the money mech is a jammed
    as i said im new to this and bought it yesteerday it is a wild thing fruit machhine

  21. aldizi

    Not in Hi-Def? I've been spoiled by your later videos. Still very informative THX arcade repair dude.

  22. Jeremy Johnson

    Great advise my 1997 video arcade game is back online! …STRIKERS 1945

  23. Vada Williams

    Does this work for Kiddie rides too? Because I bought a few that will only except tokens.

  24. Darren Connelly

    My game is not recognising the credit even tho it falls all way down to the bucket. Weird thing is that if i leave the coin door open then it does. Help please!

  25. Penfold8

    Do you know where I can locate replacement coin mech holder for a over under wells Gardner style door?  I might need a couple of replacement parts on the return coin bezel portion.

  26. Darren Connelly

    would you be able to explain to me how I'd add a freeplay switch to a electronic microcoin mech & credit board setup in my machine? It's not an old fashioned mechanical mech

  27. stanchcorder6

    Now coin mechs in arcades take arcade tokens.

  28. Joe Ferrantelli

    Mechanical Coin Mechanism Info
    Check out this video to understand additional adjustments to Coin Mechanisms coin acceptors.

  29. Glenn Jobs (Glenn Jobs-Page)

    is this one size fits all on classic arcade coin doors, i.e, classic Atari, Nintendo, Konami, Jamma, etc.  coin door, Midway, stand up, cocktail etc all have same size coin mech that fit or brand specific

    Can you buy wrong size of its missing

    Difference between classic xoin door wiring & Jamma coin door wiring

    Lock that work on heavy duty security bars

  30. Glenn Jobs (Glenn Jobs-Page)

    I would kike to see video on how to daisy chain bill acceptor 110 v vs & 6v vs 12v v options etc.

  31. Slonersoft Games

    Thanks! You just saved me an awkward conversation with an e-bay vendor.