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Finally, a proper RGB-PPU replacement. Viletims RGB board... 
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Joined: Tue 13 Sep 2011, 14:54:16

Posts: 779
Post Finally, a proper RGB-PPU replacement. Viletims RGB board...


Play Choice stuff should plummet in price now. And yes this has the proper pallets, in fact it's switchable. It still uses the PPU for it's tasks but via FPGA oututs RGB.

The kit comes with:

- The board, final assembly is done by the customer. Amazingly, the board is almost completly single sided.
- Multi-out connector for conversion of RF-only top loaders/Famicoms
- Stereo headphone jacks
- S-video jacks
- Seperate voltage regulator (you may be able to get away with tying it to the system for power if you swap for a new-made 1.5 amp capable 7805 regulator).
- A switch for Composite/RGB/Play Choice/enhanced pallets.

Impressive.

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Sat 30 Nov 2013, 02:19:07

Joined: Fri 10 Apr 2009, 15:00:08

Posts: 13668
Post Re: Finally, a proper RGB-PPU replacement. Viletims RGB board...
Doubt it will affect Playchoice prices. Purists will say this is emulation and they want the real thing.

Which is a shame, I don't like seeing all those poor Playchoice boards mutilated.

Sat 30 Nov 2013, 02:54:29
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Joined: Tue 13 Sep 2011, 14:54:16

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Post Re: Finally, a proper RGB-PPU replacement. Viletims RGB board...
byuu wrote:
Doubt it will affect Playchoice prices. Purists will say this is emulation and they want the real thing.

Which is a shame, I don't like seeing all those poor Playchoice boards mutilated.


Purists don't want to come to the realization that they're stuck holding expensive chips whos usefulness in RGB mods has passed. It's like the kids who insist (present company excluded of course) on collecting every NES game and refusing to even think of using a power pak. There will be a day when theres no choice but to use flash carts.

It's being simulated if i recall, accurately in the fpga. It's the same thing as a real chip.

What i'd be curious of, is if this thing introduces lag. Tjatll turn off the PVM types.

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Sat 30 Nov 2013, 04:31:01

Joined: Fri 10 Apr 2009, 22:30:48

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Location: Salem, Oregon
Post Re: Finally, a proper RGB-PPU replacement. Viletims RGB board...
I have a Famicom Titler which came factory manufactured with an RGB PPU. I never intend on selling it but I don't think it'll affect it's value that much, and happy with it, no regrets.

I've known about these projects for reverse engineering the PPU and I welcome it. The more research that goes into it the better. I don't think this is the be all end all, but I think it's great to support this sort of work and if enough people are interested he may continue working on it. Fingers crossed.

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Sat 30 Nov 2013, 07:59:22
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Joined: Tue 13 Sep 2011, 14:54:16

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Post Re: Finally, a proper RGB-PPU replacement. Viletims RGB board...
panzeroceania wrote:
I have a Famicom Titler which came factory manufactured with an RGB PPU. I never intend on selling it but I don't think it'll affect it's value that much, and happy with it, no regrets.

I've known about these projects for reverse engineering the PPU and I welcome it. The more research that goes into it the better. I don't think this is the be all end all, but I think it's great to support this sort of work and if enough people are interested he may continue working on it. Fingers crossed.


Famicom Titlers are expensive because they're rare. I'm sure the RGB affected the price but not much.

I wanna get this board and stick it in either a repaired Sharp Twin or a regular Famicom if the flash carts run FDS titles.

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Sat 30 Nov 2013, 08:11:05
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Joined: Tue 01 Dec 2009, 03:22:14

Posts: 957
Post Re: Finally, a proper RGB-PPU replacement. Viletims RGB board...
vxbinaca wrote:
It's being simulated if i recall, accurately in the fpga. It's the same thing as a real chip.

It's not even a simulation; it's taking the actual video output from the original PPU and performing some magic on it to convert it into an RGB-compatible signal. It apparently hooks into the normally unused EXT pins to help accomplish this, though I'm not sure exactly how that works.

My only gripe is that you can't modify the built-in palettes (two of which were taken from emulators), though perhaps a future firmware update will allow this.

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Sat 30 Nov 2013, 10:21:05

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