ArcadeVGA and Jpac not powering on the monitor . .

[Guywiththegun]

This is the same machine I had an issue with here:

http://forum.arcadecontrols.com/index.php?topic=98979.msg1045904

I decided to buy a Jpac and an ArcadeVGA and just use it as a MAME machine. Monitor doesn't even power on. Normally, with just the Arcade PS, it powers on but no picture. Would this mean there's a problem in the wiring from the Jamma harness to the monitor? I'm a little confused in how just the Jpac powers on the monitor in the first place.

Everything on the Jpac appears to be lit up well.

At my wits end with this thing.

[CheffoJeffo]

Can you show us some pics of wiring ?

Neither the ArcadeVGA nor the JPac have anything to do with the power to the monitor -- that is AC power that comes from the wall, probably via an Isolation Transformer.

[Guywiththegun]

I can get some pics . . but if I understand you correctly, I still need to supply power to the monitor somehow away from the Jpac? How would I do this short of a separate power supply?

[CheffoJeffo]

The monitor is powered by AC, just like what you get from the wall.

If it is an arcade monitor, then it probably requires an isolation transformer between the wall and it. Don't skip this step unless you know you can.

I refer you to this recent post of mine for some clarity as to where power comes from/




EDIT: DEFINITELY take pics so that we can ensure you have an ISO where you need it. Otherwise you can blow your monitor.

[Guywiththegun]

I didn't think I would need to power the monitor with the Jpac . . Wow, I'm confused.

Here are a bunch of pics, including some when I first got it with just the SF2 board and the old power supply that I thought was the issue (oh the young and naive) . .

http://s105.photobucket.com/albums/m207/guywiththegun/Street%20Fighter%202%20CE/

Here are some of the more relevant ones I just took:





The JPac:



Back of monitor:







More at the above link . .

Thanks in advance.

[Guywiththegun]

Any input on the pics? I've pretty much decided to start parting out and trashing this entire project if its not something manageable without shelling out more $$$ for nothing. Would love to get it running but its bringing me down too much.

[DashRendar]

Had this cabinet been in a flood in the past?  I see a lot of rust on that ISO transformer....

[CheffoJeffo]

Any input on the pics? I've pretty much decided to start parting out and trashing this entire project if its not something manageable without shelling out more $$$ for nothing. Would love to get it running but its bringing me down too much.

First, slow down. You got into this mess by rushing. None of this is tremendously difficult, but it does require a basic understanding and, in order to help, we need to understand what you did.

And you need to be patient ... I do have this pesky day job and family to tend to ...

My most important question is what did you do with this connector:



It's a fuzzy pic, but looks like a monitor power connection to me, complete with the little Wells Gardner warning tag requiring the use of an isolation transformer.

[Guywiththegun]

Sorry, just an all around anxious kind of day for other reasons. I do appreciate it.

If you're referring to the cable with the tag attached to it, its plugged into wires that go down into here:



If you're referring to the wires that are unplugged, that would go into the arcade power supply, which the Jpac documentation states should be unplugged.

[CheffoJeffo]

OK, so the monitor is connected to the isolation transformer.

There should be two wires coming "out" (which run to the monitor) and two wires going "in".

If I understand you correctly, the "in" wires were connected to the arcade power supply and are now disconnected.

If that is the case, what you need to understand is that those wires where not connected to the "output" of the PS (the PS puts out +5VDC, +12VDC, -5VDC, but no AC), but rather just tapped off on the input (which is AC coming from the wall and IN to the PS). While you don't need the PS anymore, you still need to provide AC power to anything that was connected to the AC poles on the PS.

[Guywiththegun]

Like some kind of wire hack?

What if I was to power on the monitor with the PS, AND turn on the PC which would power the Jpac . . if the monitor were going to work, would it work in that case, at least for testing purposes?

[CheffoJeffo]

Not really -- more like plugging a couple of cords into a plug extender.

Another thing to be pointed out -- the only power that the JPac gets is from the USB port. Nothing else.

The next step is to figure out what was disconnected and now needs to be reconnected.  We proceed at this point assuming that my previous assumptions have all been correct.

There was a power cord that plugged into the wall and ran into the cabinet. Do you have pictures of where that ran (typically, it would run to a switch on the back or top of the cabinet) ? What did you do with it ?

EDIT: having another look at the pictures, I'll bet that the power cord ran straight into the Peter Chou supply (missed that before -- it does make the wiring look different than a normal arcade PS) and that there is a switch on the PS that was exposed on the back of the cabinet. From there, I bet that there was a molex connector that ran 115V from the PS (a direct passthrough) to both the marquee lighting and the isolation transformer. Can you grab a picture of that connection (assuming that I am correct) ? We'll then figure out the cleanest way to get you 115V AC to those places.

[Guywiththegun]

Yeah, the power cord went directly into the power supply, exactly like a computer power supply, with molex connectors coming out of the PS and plugging into other molex connectors. I was actually surprised how much it worked like the inside of a PC. I'll take pics of those connections.

[Guywiththegun]

Ok, the power supply connected to this molex connecter (took the pic from the front for a better view):



That would connect to all the wiring that would be fed to the JAMMA harness.

Here's some more pics of the wiring: