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An update. Have done some testing recently, the problem, at least in my case, appears to be the 12V line indeed. No clue why this pcb is so sensitive to that, as none of my other pcb's show any related issues, but somehow it is. First have disabled -5V. Image is white but still bumps with...

Like a very messy test setup for now haha. Just ordered the correct connectors (thanks @everten for helping out here), will finish it up and post some pics when done

Hi all, have done some testing on the above, and would like to report my results 🙂 Picked up a cheap Tamiya TTU-03 controller with receiver, planning to be able to use it both wireless, and wired to the pcb, in case I don't feel like digging up 8 AA batteries. Using it WIRED works great...

Yes can adjust colors. Think it's weird though if all three aren't working. Maybe try dialing down or up potmeters on the VS board first, then on the adapter board? For me personally I think those adapter boards are too expensive to just buy another one to test. I'd rather first try with...

Will report back if I have tested some possible solutions as said. In the mean time, if you find the holy grail to fix this, be sure to let me know :) Btw, if you're experiencing this on different cabs, I assume the chance of all three having a bad PSU will be quite small, and the PSU shouldn't...

I have thought of that too. Don't think anything was shared, but thought of small magnetic fields or anything. For now I don't have a big issue with it since it's at lower volume anyway, but will be working on CPS2 soon, where I'll need a separate amp anyway, will try using that amp then, along...

I have measured 12 on the board, that should be fine. It only starts dropping when I raise the volume. The adapter board seller says he's sure it's the power supply, so I'll try getting 12V from a separate supply first, or using another amp. If that doesn't work, I'll be sure to replace those op...

Update - Pcbjunkie adapter board received, and after some initial issues (board apparently needs -5V, and fits as tight as a board can possibly fit, had to bend pins to connect it at full force with both hands), things are much better now. Ghosting issues are gone. Jailbars still there but a...

Update - Not sure what I missed when soldering rgb directly to Jamma, but when using the adapter board for everything but rgb, which I've soldered directly to Jamma, I don't get the black screen, but inverted colors without the ghosting instead. So it's the adapter board after all. Will order...

First, thanks for the extensive reply! Appreciated. And nice avatar, really appreciate the abt 12 :) To answer your questions: I'm testing the pcb in my MVS U4 cab. I use it for many different boards, and haven't had any issues like these yet. Have tried dialing back contrast/brightness, but it...

Am away for a few days, will thoroughly reply and check some things when I'm back. Thanks for the reply!

One more thing to add - I'm noticing the image reacts to the sound quite a bit, brightness going up and down along with the game music and sounds. Altogether looks like a weak video signal somehow.

Hi there! Have recently purchased a Vs SMB pcb, which works fine, but has terrible image. Lots of ghosting and jailbars like artifacts. It came with a hand made inverter and amp board. I have tried to solder 5v, gnd, r, g, b, video gnd, and sync directly to the Jamma connector, to see if the...

Also interested! Have bought a de suicided Pang board using ArcadeHacker's method. Would be awesome if decrypted files would ever be available for Super Pang, so I can switch game with a simple rom swap.

PM sent

Ok, assumed that. So I'll make sure to get the MVS to properly work first, then order a new THS and replace it on the rgb board.

Been a while. Finally had some time to build the board and test. Unfortunately my MVS board doesn't work, no sound, no video, so can't test the rgb board at the moment. However I do notice the THS7374 chip getting véry hot. Is that supposed to be that way?

@SVM This is fantastic! Ordering the board and parts right away, very glad to have found this. Will report back once I've tried it, could take a while though, too many projects going on. Some time 2019 :-) Thanks.

So glad to have found this thread! Just registered here to be able to reply. Been searching here and there for months, for the ideal way to consolize my MVS board. Always find the same topics, many contradicting opinions, and the people who seem to know what they're talking about, well I...