Modless RGB and A/V Upgrade for TurboGrafx-16 and PC-Engine

[bancho]

If only these had come sooner. I just the other day did an RGB mod

Which amp are you using? Is it the one from thgill?

Yeah it was the amp he sell's. Really is a nice little amp. Gives great picture quality and allows for a neat clean install.

[ishiyakazuo]

Does this fit onto the Interface Unit?

Nope.  Uses the same expansion port.  It's an either-or, at the moment.

[db-electronics]

What will the price be for this?

Still evaluating this. I'll also probably offer different versions (i.e. one without RGB) for people who don't want it in order to reduce cost for those units.

Also looking into adding S-Video support...

[ctophil]

Very nice, DB-Elec.  Thanks for working on all these cool devices for the Turbografx-16 and PC Engine.  As you know, I purchased your import game converter for TG-16 and a happy customer.  I'll definitely get your new Grafx Booster as well.  :-) 

[esteban]

I still think this is awesome. Opinion has not changed.

[db-electronics]

I've decided to go for a second PCB spin before releasing. I'm adding S-Video support and improving a few other aspects of the current design (for instance, I've notice a slight flaw on my SYNC circuit). Anyway, nothing major...

In the meantime, I took a screenshot of CVBS and RGB for you guys. Surprisingly, the CVBS video straight from the console looks very sharp on my Trinitron - it's light-years beyond CVBS from any Nintendo or Sega console.

http://www.db-elec.com/home/lab-posts/preliminarycomparisonofcvbsvsrgbondbgrafxboosterttp

[graffias79]

In the meantime, I took a screen of CVBS and RGB for you guys. Surprisingly, the CVBS video straight from the console looks very sharp on my Trinitron - it's light-years beyong CVBS from any Nintendo or Sega console.

I have to agree with this.  The Duo and TG-16 emit about the cleanest CVBS signal I've ever seen from a game console.  I had my Duo S-Video modded and the only thing it really cleaned up was the dot crawl.

[db-electronics]

Here it is, revision B with CXA1645 now supporting Modless S-Video and RGB on TurboGrafx...

http://www.db-elec.com/home/lab-posts/dbgrafxbooster-redgreenbluechromaluma-ohmy

I've yet to do a comparison with a CXA2075 - that's on my list of things to do.

[Necromancer]

Your link is broken.

[db-electronics]

Your link is broken.

oops! fixed...

[sirhcman]

What will the price be for this?

Still evaluating this.

Still no price?

[db-electronics]

Still no price?

I just need to plug in dollar amounts into my BOM spreadsheet, should be priced soon.

[bozo55]

This looks awesome

Is adding memory a future plan or is that unfeasible?

[ProfessorProfessorson]

Looks good man. Will be a nice solution for people wanting svideo on unmodded Tg, Coregrafx, and Supergrafx systems.

[db-electronics]

Something that could greatly reduce the price would be if I were to use two 3x3 connectors instead of 1 large EXT connector. None of the signals in the middle of the EXT port are necessary for this application so it wouldn't impact anything. The only thing is that it would look a bit weirder.