cabinet noob with a broken cabinet please help

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korn16ftl3
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Joined: Sat Dec 08, 2012 2:52 pm

cabinet noob with a broken cabinet please help

Post by korn16ftl3 »

so i have recently obtained an arcade cabinet for a mere hour of my time repairing some ones network and computer. bo be honest i still dont know what i did to make it all work right for them....

any ways....it does not power up at all what so ever when it is plugged in, i have a friend that personally knew the previous owners (not the person i obtained the cabinet from) and stated it WAS in a working condition at one point in time.

i have absolutely no knowledge on arcade cabinets at all what so ever....for crying out loud i didnt even know what a JAMMA was, which i kept seeing mentioned in other cab threads all over the internet until i seen it was a PCI like card that the buttons and joy stick seemed to be plugged into (a button interface interpreter for the game is what im assuming it is?).

Now im no slouch when it comes to PC components and/or console hardware modifications, tho i have fried my fair share of systems durring the learning process (best way to learn is hands on for me). So this should not be a major issue, i hope to learn the structure and functions and things of that nature for an arcade cabinet.

I have located the Preliminary owner/operator manual for the game that is supposedly in the cabinet which is gaplus/galiga3, which is located here:
Tiny URL Preview: http://preview.tinyurl.com/ahpdy3o
Tiny URL direct link: http://tinyurl.com/ahpdy3o
(i tiny URL'd it because the whole link does not want to copy paste as an entire link for some reason)

How ever as i am not familiar with arcade cabinets like AT ALL WHAT SO EVER or what any of the terms and such are for them, i was hoping you friendly folks here would be able to help me get this machine up and operational. (i was directed here by a member of racketboy)

this is what i do know about the cabinet.....
its obviously not the original cabinet that the game should be in....as a matter of fact its in some kind of NEO-GEO cab that DOES NOT say MVS on it (i was reading else where and seen an image of an MVS cab this is not an MVS) all it says in the location of the buttons is Neo-Geo system SNK no MVS at all.

the alleged game that is in the cabinet is supposed to be either gaplus (from my readings there is an expansion card for gaplus that makes it say galaga 3?)

the game is COMPLETELY unresponsive lights and all when it is plugged in.

so would you guys be so kind as to help a noob in a completely different world of games make their new machine work properly?

is there some kind of wiki or something that can explain the different components of an arcade cabinet to me what they do their functions ect. ect. so i can familiarize myself with what exactly i am dealing with?

soo lost and do not know where to start exactly...all i know is the end result i want and that is to play what ever game (hoping gaplus) is in this cabinet :mrgreen:

here is a photo of the cabinet i can/will post more images shortly once i take them as well as point out things i find suspicious about it....perhaps it may lead you guys to some conclusion as to what exactly is keeping me from playing it.

Image
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beatsgo
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Re: cabinet noob with a broken cabinet please help

Post by beatsgo »

First off, please provide more pictures, especially the arcade PCB. This green electronic board is the heart of the machine. You have a oscilloscope or multimeter on hand?

Here are some helpful links to help you a little bit understand what an arcade machine is:
Wiki's explaination of what makes an arcade machine
BYOACWiki which have some in-depth details about each component of an arcade machine
Explaination of the JAMMA harness
JAMMA harness pinouts
Ex-STGWeekly Crew
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ChuChu Flamingo
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Re: cabinet noob with a broken cabinet please help

Post by ChuChu Flamingo »

Sounds like a power supply issue.

http://wiki.arcadeotaku.com/w/Main_Page

Good site to read up on.
korn16ftl3
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Joined: Sat Dec 08, 2012 2:52 pm

Re: cabinet noob with a broken cabinet please help

Post by korn16ftl3 »

here are some better images i am going to poke around with a multimeter tonight and see what is going on as well as number all the wires and component locations so i know exactly where every thing was even tho i have the schematics this cab obviously does not have the original wiring as its just some kind of conversion. I will also take pics of the components tonight to post as well.

a better resolution photo of the cabinet as a whole
Image

Neo-Geo overlay and buttons
Image

Galaga 3 marquee
notice the marquee stands taller than the cabinet.....thinking about having it cloned to the plexy glass that is actually behind the marquee
Image

Speaker locations
only one installed....a mono game perhaps?
Image

coin slots, coin return, and coin box
Image

like i mentioned i will post images of the back and internal components hopefully some time today specifically what is going on with the power cord and PSU
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brokenhalo
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Re: cabinet noob with a broken cabinet please help

Post by brokenhalo »

it's a generic dynamo cab. so as far as being a conversion, it was never anything specific to begin with.

it should have a switching power supply inside. if nothing is happening at all when you plug it in, that's the best place to start troubleshooting. plug it in, check to see if you have voltage where the power cord comes into the power supply. check for voltage coming out of the transformer. if you don't have voltage out, check the fuse for continuity to see if it's good. report back.

there's only one speaker because the jamma standard is only wired for mono sound
korn16ftl3
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Re: cabinet noob with a broken cabinet please help

Post by korn16ftl3 »

got it to turn on.....some one relocated the switch up inside the cab rather than on top of it.....the picture is horrid tho and NONE of the tube adjustments fix it or make it any better......im wondering if i could possibly be getting unclean power or something, either way the tube has burn ins on it and really ought to be changed.....where does some one find a tube for one of these things? lol
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opt2not
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Re: cabinet noob with a broken cabinet please help

Post by opt2not »

korn16ftl3 wrote:got it to turn on.....some one relocated the switch up inside the cab rather than on top of it.....the picture is horrid tho and NONE of the tube adjustments fix it or make it any better......im wondering if i could possibly be getting unclean power or something, either way the tube has burn ins on it and really ought to be changed.....where does some one find a tube for one of these things? lol
Could be that the monitor's caps need replacing. But without any pictures I can't really be sure.
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brokenhalo
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Re: cabinet noob with a broken cabinet please help

Post by brokenhalo »

korn16ftl3 wrote:got it to turn on.....some one relocated the switch up inside the cab rather than on top of it.....the picture is horrid tho and NONE of the tube adjustments fix it or make it any better......im wondering if i could possibly be getting unclean power or something, either way the tube has burn ins on it and really ought to be changed.....where does some one find a tube for one of these things? lol
seconded for pics of the monitor running.

you've got two seperate elements here, a tube and a monitor chassis. the burn in on the tube can't be fixed. i'd say get the chassis re-capped and then see how bad the burn in is. it might not be all that noticable during play. if it really bothers you you can swap the tube out, but good tubes are becoming more and more uncommon.
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