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Adding component or RGB output to Neotropolis consolized MV1FS?

Kujako

Kujako

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Have an old Neotropolis consolized MV1FS that only has composite and s-video output. Thinking I'd like to add RGB or possibly component to the mix but I don't want to remove the existing modifications. RGBS is already tapped, so thinking I can just run a second output in parallel.

1. Any concerns with having a second encoding or RGB filter board running in parallel with the composite encoder? I can always add a toggle switch so only one board is powered.
2. Any recommendations for a RGB filter PCB?
3. How about a component encoder?

Looked at adding a plexiglass top and bottom, but that's not happening with the new import fees (adds almost $70 USD to the price).

Any other fixes or issues anyone can think of?

Thanks,
 
I ended up getting rid of my composite/S-video CMVS when I switched everything over to RGB. The reason is the encoder inside becomes useless, detrimental to the RGB signal even. Not to mention the holes drilled I no longer needed. That was years ago, so there were more people who still wanted S-video and composite.

You don't actually need any RGB encoder board, but if you have to have one, the Tian Feng board is the way to go. Not that they're sold anywhere anymore.

If it were me, I'd remove the video encoder entirely and wire it for RGB only for the best signal.
 
Neo-Alec said:
I ended up getting rid of my composite/S-video CMVS when I switched everything over to RGB. The reason is the encoder inside becomes useless, detrimental to the RGB signal even. Not to mention the holes drilled I no longer needed. That was years ago, so there were more people who still wanted S-video and composite.

You don't actually need any RGB encoder board, but if you have to have one, the Tian Feng board is the way to go. Not that they're sold anywhere anymore.

If it were me, I'd remove the video encoder entirely and wire it for RGB only for the best signal.
Click to expand...
Yeah I don't really need composite/s-video, but I'm not willing to take out the modifications that were done (say what you will about it, but they did a good job with the modifications). Worse case I should be able to use a super gun when I want RGBS and leave the power switch off on the consolized system, which should let it run without powering the encoder PCB. But I'd like to run it off the 5v only but with RGBS when I want to. Plenty of room to add more holes, so thinking a MD2 8 pin mini-din and possible a toggle switch to turn off the composite/s-video. But I'd want a RGB filter PCB for that, similar to what's in the OpenMVS kits.
 
I was in the same place you are right now. If you feed it power at the jamma edge, I guarantee you the encoder will get powered as well. Maybe that's fine.

If you want to do component (I always cut out the middleman and just do RGB) most component encoders output composite and S-video as well, so you could just upgrade the encoder.
 
Neo-Alec said:
I was in the same place you are right now. If you feed it power at the jamma edge, I guarantee you the encoder will get powered as well. Maybe that's fine.

If you want to do component (I always cut out the middleman and just do RGB) most component encoders output composite and S-video as well, so you could just upgrade the encoder.
Click to expand...
Yeah, does seem to power the encoder board when running off JAMMA. Easy to correct if I so choose though, and at least in my limited testing appears to have no ill effects. I'd be quite happy with just adding a mini din style RGB output, but again not sure which filter PCB would be a reasonable choice.
 
Somewhere I have some Neo Geo RGB PCBs by n00b, thinking I'll just go with those. Just need to find a mini-din 9 or 10 panel mount.
 
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Sounds like you're all set then. If it were me I'd remove the S-video/composite encoder out of circuit, but if you're happy with it. Please let us know how it turns out.
 
Neo-Alec said:
Sounds like you're all set then. If it were me I'd remove the S-video/composite encoder out of circuit, but if you're happy with it. Please let us know how it turns out.
Click to expand...
What I'm thinking I may try to do is have a power toggle switch so that only one of the two boards is powered at a time. But it may be more work than I'll have time for... as always, too many projects.
 
Kujako said:
What I'm thinking I may try to do is have a power toggle switch so that only one of the two boards is powered at a time. But it may be more work than I'll have time for... as always, too many projects.
Click to expand...
I'm not sure if cutting power will be enough, because you'll still have the RGB signal split and running into the components. Ideally I suppose you'd have all four video signals on a switch.
 
Neo-Alec said:
I'm not sure if cutting power will be enough, because you'll still have the RGB signal split and running into the components. Ideally I suppose you'd have all four video signals on a switch.
Click to expand...
Could always add a 4P2T switch in there to toggle the RGBS wiring between the PCBs. Will consider it.
 
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