6player xmen issues

SavePointVG

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Hey gang,
I moved my xmen cab to my store and upon putting it back together and plugging everything in i am given a few issues.

the game starts and passes all its test. it will let you play for a about a minute or so but then the game resets or freezes. this wasnt an issue before moving it. I found that pressing on the wires on the jamma harness seemed to make for a better connection. i have 3 weeks til my store opens and i need this thing is perfect working order. also the sound wires may have gotten tangled or something because there is a lot of feedback from the speakers now. what could be the issue? power supply? do i need a new jamma harness?

thanks
 
It sounds like a power problem. Have you checked on the voltage at the board?

The sound issues could be as simple as the connector connected backwards but more likely the sound amp caps could be starting to fail. Unfortunately the capacitors mounted on the sound amp are notorious for leaking and that leakage, if not stopped early, can lead to permanent damage of the sound amp.
 
is the sound board separate or on the main pcb? ive got plenty of spare caps laying around and wouldnt mind replacing a few. This unit is strange- inside where the power supply is- there is another power supply sitting on top of the one that has the switch on the back of the unit. the original power supply is not connected in any way but still mounted. the new power supply looks really new. here the kicker, inside the cab when i opened it for the first time was a 3rd power supply still in its box but more like a PPU nintendo power supply.

I havent tested the voltages on the board yet. Maybe the voltage knob on the power supply was moved slightly in the move? should i just get a new power supply?

thanks for the advice
 
The sound section is on the main PCB. The caps are surface mount components, not standard electrolytic through hole parts.


The original power supply very likely died and the second unit was installed. I have no idea why you would have a third power supply, maybe the guy who replaced the power supply in the past didn't know which one he needed and purchased two different models? A difference in input power voltage could result in the output power varying slightly and the power grid in the US is not very uniform. I would test the power before replacing anything.
 
i wasnt able to get a measurement of the power voltage today- the powersupply is a brick and not the one with the wires exposed. i wasnt sure where to read the voltage on the board. any help would be great. thanks. hopefully its a simple replacement or just a bad connection somewhere.
 
okay with the power supply turned all the way up im reading 4.6 right off the board where the jamma harness connects. time for a new power supply?
 
okay with the power supply turned all the way up im reading 4.6 right off the board where the jamma harness connects. time for a new power supply?
Yeah I'd definitely replace it given that low of a reading. Some games can be more picky than others but I would think any game would have issues if they even boot up with that low of a reading.
 
Yeah I'd definitely replace it given that low of a reading. Some games can be more picky than others but I would think any game would have issues if they even boot up with that low of a reading.


Actually his power suply was fine. This was a reading at the board and loose connections led to the voltage drop. This is why I always take readings at the board and at the power supply. Comparing the numbers will tell you very quickly where the problem resides.
 
Actually his power suply was fine. This was a reading at the board and loose connections led to the voltage drop. This is why I always take readings at the board and at the power supply. Comparing the numbers will tell you very quickly where the problem resides.
Good point. With my 6 player I ended up replacing the edge connector housing and pins because the pcb already had solder on the pads and had a connection issue.
 
Someone added solder instead of just replacing the pins? Amazing.


One of the first things I do when I get a machine is check all of the connectors. Some games, like early 80's Atari machines get a repin regardless of what I find. It always seems to make the game more reliable.

Hell, I had a Pole Position that was trouble free for years once I finished my new arrival check-up. In that case it was repin the connectors, rebuild the ARIIs, replace the fuse block, and replace any sketchy IC sockets. I sold it to another local collector and after a few more years it has finally started acting up. My guess, something came loose during a move of the machine but he hasn't popped the door off to check.
 
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