Hi everyone, I'm a new Supergun owner - I sold some extra N64 carts for way more than I was ever expecting so I went ahead and bought one of Jasen's Customs MK30ADCAP Superguns ( http://www.jasenscustoms.com/MK30ADCAP- ... _p_14.html
) because it seemed to be exactly what I wanted. I felt like I'd have no issues, plus having an internal power supply was a must for my setup.
Anyway, I purchased a TMNT '89 arcade board at the same time from a local arcade owner because that was one of my must have games and couldn't turn it down. Unfortunately, things haven't gone as smooth as I was hoping for.
First off, the RGB image has just a ton of noise in it. I'm running the Supergun to an XRGB Mini Framemeister. I originally thought that this was due to the 8 pin minidin to SCART that I purchased from Retro_Console_Accessories on eBay was a bit longer than it should be - about 9 feet. When I ordered it, I didnt know how far away I'd be putting the Supergun, so i got this length to be safe. I ended up ordering a normal length cable (~5 ft) with the pro cabling option just to be sure...and while it cut down on the noise a little bit, its still there.
Secondly, I'm also running the supergun to a couple of PVMs. I'm using a gscartsw SCART switcher, which has two video outputs. One video ouptut goes to the framemeister (SCART) and the other is a VGA D Sub output that goes to a VGA to BNC cable into a Sony PVM 14M4U, which then feeds via a BNC cable to a Sony PVM 20L5. And this is where things really go all over the place.
The image is really dark and has a very strange color banding on screen. In additon, specifically on my 20L5, theres a weird curvature at the top of the screen that could be a sync issue.
I've run a whole bunch of comparisons and tweaks to see what if I could troubleshoot the issue, and heres what I've found.
1.) The MK30ADCAP has other outputs - component, s-video and composite. Component looks great on the PVMs, except it still displays the curve at the top of the screen on the 20L5. Noise is greatly reduced. Unfortunately, the Framemeister won't register the the Supergun over component. I do wonder if this is because the Framemeister seems to see TMNT as 241p over RGB, and maybe thats too out of spec for Component. S-video looks good, and the Framemeister sees it...but...I don't want to use S-Video, y'know?
2.) I've tried going directly to the PVM and it exhibits the same issue. I used a SCART to BNC cable.
3.) Thinking it could be an issue with the board, I took it too a local arcade and they put it in the cabinet and it booted up and displayed with none of the issues.
4.) I HAVE tried a second board on it. Super Street Fighter 2 Turbo. NO sync issues on the 20L5 and NO color banding at all. But there was still a bunch of noise present. Of course, this was before I got my heavy duty cable, but the noise was the same that I've been seeing from the TMNT board.
5.) I've tried running it through a Extron RGB 201Rxi and it did not fix the issues.
Anyway, if you want to see a video on it, I put together a video log on the issue. Of course, this is a couple of weeks ago, before I had a chance to check the board on another setup or try the heavier duty cable. You can watch that video here: https://www.youtube.com/watch?v=_dkZKf86rh8
Sorry for my rambling in that video, i cut it down as much as I could while retaining the info. It was done totally unscripted and off the top of my head. I'm bad without a script.
So, has anyone seen anything like this before? Any suggestions of what it could be? I've been working on this for what feels like forever and I just want to figure it out and see what my next course of action should be.
Thanks so much for all of your help, and any advice would be appreciated!