Upgrading/Emulating Old Cabinets

Hi there, just created an account for this specific question so forgive my ignorance to how this forum works.
I run a small arcade on the coast which has a section for classic games which over the years we have tried to keep in complete original condition. Recently we had to go against our own ethics and have a modern system installed into our Ms Pacman to keep her running and on the arcade floor for all to enjoy. We have kept all original components with the cab just so we can sleep easy at night.
This morning after a pretty cold and damp start to the winter I've turned the power on and now have had Defender, Asteroids and Space Invaders die on us. We spend hundreds of pounds on repairs every year for our retro area alone and it's getting to the point where it's becoming too costly to keep them running solely original.
It did cost us an arm and a leg to convert Ms Pacman to a modern emulator system and even though I am personally a huge lover and player of all the games I am in no way whatsoever tech savvy in maintaining these old systems and understand this is why I was in the position to be charged more than the cost of the machine itself to fit an emulator into it.

Finally my question.... Could someone please lay out for me on here what I need to do to convert these old machines to run off an emulator system myself?
My requirements are for the original controls to work as intended, I only want the original game to be running. (not interested in a thousand games options for my Defender. Myself and my customers want dedicated cabs) Where possible for the emulator to run on the original CRT and finally for it to still run as coin operated.
My goal is to be able to convert all these machines to run as intended but with an emulator to by pass the broken boards, giving me time to have the proper repairs done on the machine when we can afford it and keep the pride and joy of our arcade as pristine as possible yet still being enjoyed as originally intended.
Please feel free to lay things out to me like a 5 year old. My arcade repair skills in general are up to scratch to run modern equipment but being a small business I run the entire place on my own and can't afford to keep spending thousands of pounds every year paying everyone else to fix my problems.
 

DanP

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Hi there, just created an account for this specific question so forgive my ignorance to how this forum works.
I run a small arcade on the coast which has a section for classic games which over the years we have tried to keep in complete original condition. Recently we had to go against our own ethics and have a modern system installed into our Ms Pacman to keep her running and on the arcade floor for all to enjoy. We have kept all original components with the cab just so we can sleep easy at night.
This morning after a pretty cold and damp start to the winter I've turned the power on and now have had Defender, Asteroids and Space Invaders die on us. We spend hundreds of pounds on repairs every year for our retro area alone and it's getting to the point where it's becoming too costly to keep them running solely original.
It did cost us an arm and a leg to convert Ms Pacman to a modern emulator system and even though I am personally a huge lover and player of all the games I am in no way whatsoever tech savvy in maintaining these old systems and understand this is why I was in the position to be charged more than the cost of the machine itself to fit an emulator into it.

Finally my question.... Could someone please lay out for me on here what I need to do to convert these old machines to run off an emulator system myself?
My requirements are for the original controls to work as intended, I only want the original game to be running. (not interested in a thousand games options for my Defender. Myself and my customers want dedicated cabs) Where possible for the emulator to run on the original CRT and finally for it to still run as coin operated.
My goal is to be able to convert all these machines to run as intended but with an emulator to by pass the broken boards, giving me time to have the proper repairs done on the machine when we can afford it and keep the pride and joy of our arcade as pristine as possible yet still being enjoyed as originally intended.
Please feel free to lay things out to me like a 5 year old. My arcade repair skills in general are up to scratch to run modern equipment but being a small business I run the entire place on my own and can't afford to keep spending thousands of pounds every year paying everyone else to fix my problems.
It shouldn't actually cost that much to convert many of these to use modern emulators or FPGA versions of the games. The quickest and easiest way to achieve what you want is the FPGA route, sometimes these are just plug and play but occasionally you might need to build a Jamma adapter. FPGA differs from emulators in that it emulates the hardware and runs the original game rom code as if it were the original PCB - hence it's more accurate. I know some of the other retro arcades use them.

Here are a few examples from arcadeshop:

Space Invaders: https://www.arcadeshop.com/i/1860/8080-fusion-multigame-pcb.htm
Defender: https://www.arcadeshop.com/i/1121/williams-multigame-jamma-pcb.htm
Asteroids: https://www.arcadeshop.com/i/1832/masteroids-multigame-pcb.htm

If you want to go the emulator route then you'll need either a PC with a video card capable of putting out the 15hz video signal (usually via an adapter boards like a JPAC) or a Raspberry Pi. Both should be relatively cheap to do, it's just the pain of setting them up software wise that is probably expensive. Personally I use the Pi option because I want them small, able to use the existing Jamma power supply and cheap as chips :). They are also much happier being turned off via the power switch rather than a PC with a Windows OS which need to be shut down properly.

HTH

Dan
 
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100% raspberry pi over a PC, for all the reasons above plus the fact they use next to no power saving on the ol' leccy bill.
 

Fantazia2

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It should be noted If this is a commercial venue your not allowed to use Mame as its against the terms of the software license even if you have the original hardware, not that it stops a lot of the retro bars etc.

For defender there is the JROK board.

Also be wary of the jamma multi boards like the 19in1 and 60in1, they don't run the games as good as original hardware and also are running mame.

When you say it cost more than the original machine to convert the pacman how much were you referring to, also could we worth naming and shaming the company that did this for you as sounds like they fleeced you.
 

duncthepunk

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hi . if you have the original cabs it is not hard to convert them to run emulator boards or pi . using the old crt's you can a video board to make it look like the real deal. . most baords are jamma or mini jamma .the good thing if the board goes bad it can swoppped out very quickly (they very rarely go wrong with new power supply) the problem is that the old games need alot of tlc (and good power supply) most of 80 games the power supplies have failed by now . i built a 19 in 1 many years ago and it never went wrong on crt or flat screen . good luck and you need some help let me know .happy new year
 

duncthepunk

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i am sorry to say that it was sold acouple of years ago . i mainly fix pinball machines (as a hobby). i live in birmingham uk . and i am always willing to help or give advise to any person who has a problem with a old machine . i do try to keep away from video arcade repairs because a little knowledge is a bad thing . i do have one machine at home which is going to be rebuilt next year but i am so busy with work .(i said it was a hobby).
 
Thanks ever so much for the helpful info guys! will get my head around this lot. I'm going to tackle Defender first, and will come back to the thread if I have any issues.
Arcade is located in North Norfolk, Small Village called Mundesley.
 
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