cabinet disassembly/reassembly questions

tbkent

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hey all. i am attempting to take everything out of a cabinet (NOT the monitor, that broke and is the reason for this project) and put it back together in a much smaller package - one that will sit next to my TV and i can roll out and play whenever i want. i have a few specific questions:

- i am capable of cutting and reconnecting all the wires i need to for the speaker, the controls, and the coin-op module. all of those piece are coming with but needed to be severed for disassembly. BUT, not all the video wires are identifiable. there are six coming out of the video-out on the board, five were going into the broken monitor, and i have five leads on my JROCK video converter. how can i identify which is which? i have the monitor connector intact, so if it's standardized right to left, that would work.

- the power supply is intimidating for me. i don't know so much about electricity as i like to think i do about electronics. the cabinet has a contemporary power supply, and very old looking components, one of which is a fuse breaker, the other of which i'm less sure about but since the monitor power was coming from it it seems to be an amplifier or some other sort of pass-through for power to the monitor. i don't know what to make of these things, and haven't cut any of the wires. is there a guide to working with power supplies? the power cord is also very old, but the three parts of it are very straightforward.

i have some photos i can post but i wanted to get this up in a hurry to see if anyone could help. i will be back around 6:30 EDT and WILL respond to questions and requests for pictures.
 
"i don't know so much about electricity as i like to think i do about electronics"

Right there is a reason that you should A.) not be in a rush and B.) not be messing about with the electronics in the game. High voltages can kill.

You didn't even mention what game this is. This is step one.

Schematics for your game and pinouts for the jrok are your friend. They will tell you which wires go where.

Switching power supplies often don't replace all of what one would THINK is all power supply, some remaining parts are still needed. Its very possible that your game has a switcher, but still requires other parts (usually for the monitor).

If you're cutting wires and reconnecting them, be sure you're doing it correctly. These things do not end well if you're just twisting them together and wrapping them with electrical tape. In fact, you really don't need to cut up the harness at all. Just roll up the slack and tie it off with some zip ties.
 
KrisK, unfortunately it was not possible to disassemble the unit without cutting a lot of wires. we'll see if it works later. as for right now, there's no voltage in it because it's been unplugged for weeks and i'm not messing with the CRT. i would appreciate help with my original questions though. the game is rolling thunder, though it's not an original cabinet. i think it was Elevator action originally - or at least the monitor was - but the central unit is JAMMA, so i suspect the pins for the video-out are standard. i just don't have a resource from which to learn what that standard is. if anyone knows where i might find that, i'd surely appreciate it.

below are some images with descriptions.

this is the central unit into which the JAMMA card plugs. the video-out is the white-backed pin set, with nothing in it.

img0719nw.jpg


this puts the power supply challenge in context. the power supply is blue, the weird old thing i can't figure out is to its left, and the fuse breaker is just below those, mostly shaded.

img0720hp.jpg


this is a better shot of what's described above, with the breaker clearly visible. i did not do the electrical taping shown in this photo, that's how the game was when i got it.

img0726qk.jpg
 
thank for trying to help, guys, but i need the pinout for the video out on the central unit, not all 56 pins of the JAMMA card/receptor. anyone know where i can find that? (the unit i'm talking about is in my photos above.)
 
The "the weird old thing" is an isolation transformer. Used to regulate voltage to the monitor. Certain monitors need these. Depending on what your planning on using otherwise you may or may not need to keep it.

Anyways from the picture and I could be wrong on this, but it looks fairly standard to me.

Pins would probably go - Red Green Blue Ground Sync Sync, and if your going to a monitor with only 5 pins the two sync wires would of been connected together somewhere along the line. Don't quote me on the pin out.. just my best logical judgement call on that.
 
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