Thanks guys! I really appreciate the help. I found the little nut by the cord and was able to ground it that way for now, but I'll probably get around to doing it nem's way at some point.
I'm trying to add a ground line because I'm getting some video interference with the MiSTerCade. I sliced open the power cable sheath and found only a black and white wire inside - no green ground wire. I've heard that it's possible to connect a wire to the ground pin on a plug and a certain...
Oh man, of course it involves soldering... :) seriously though, thanks for the tip. Replacing capacitors seems like it's fairly easy if you have good equipment...? It's something I want to learn to do, so hopefully I can try this soon.
Well, in case anybody's curious, I eventually got this thing up and running. As far as I can tell, I actually had bad A and B boards. Guess that's what I get for trying to save a few bucks by ordering used stuff from China. I thought $300 for both seemed too good to be true...
If I had to do it...
It was the A board. I got a new one today, and the Darkstalkers B board worked fine. So I reinstalled the multi kit in the SFZ board I'd already removed the EEPROMs from, and I still had weird vertical lines in certain background tiles. After reconnecting the A and B boards multiple times and...
I took both boards (the old A board and new B board) out of their cases and cleaned them thoroughly. Except for the edge connector pins, the A board looks pristine to me. I cleaned the pins (again) with a pencil eraser and isopropyl alcohol on both sides, then seated the B board just right and...
So I went and bought one of Brad's working CPS2 B boards (Darkstalkers). It just got here today. I plugged it in, and... the same damn thing happened. I can't really check the voltage on the JAMMA edge under load without decasing everything, but I tried the board with a reading of 5.09V under...
Sorry if this is slightly off topic, but is the fan only necessary because of the plastic case? Has anyone ever tried decasing both boards and running without a fan?
Neat! I didn't know you could do that. Thanks for the info. I'll definitely keep that in mind going forward.
Fixing the B board doesn't really seem to be a realistic option for me, so I think I'm going to have to bite the bullet and buy another one. Unfortunately, right now the cheapest one on...
Sorry, I’m just not following you. The supergun was reading 5.09V while the board was on. The only reason I can tell the voltage on the supergun under load is because it has a built-in voltmeter. The only way I know of to check voltage on a cabinet’s jamma edge is with a multimeter. But if...
I tried it on a supergun and a cabinet. The results were the same both times. The supergun read 5.09 volts. I'm not sure about the cabinet (don't know how to test it under load), but it should be somewhere in the neighborhood of 5V. What is the optimal voltage for CPS2?
So how does this test...
Unfortunately, I have no experience with soldering. I want to learn, but I haven't yet. Wouldn't it make more sense to try an A board first so I don't have to swap the kit out and risk damaging it? Or do you think the B board is more likely to be the problem?
Is there anyone I could send both...
Well, I rolled the dice and bought the Multi. I was hoping that the phoenixed EPROMs were the problem and figured that I was going to get the kit set up one way or another, so I might as well buy it now. I installed the Multi, and, surprise surprise, same problem. The games flash normally and...