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NEC TG-16/TE/TurboDuo => TG-16/TE/TurboDuo Sales & Trades => Topic started by: gtsamour on February 20, 2011, 07:57:00 PM

Title: I RGB modded my Super Grafx
Post by: gtsamour on February 20, 2011, 07:57:00 PM

I decided to go on with modding my beloved Super Grafx console, and I must say I'm more than satisfied with the results.
It totally worths all the effort, and since this console has the best Ghouls and Ghosts game, I love playing it with the best possible picture quality.
Here are some pictures...

(http://img33.imageshack.us/img33/1111/supergrafx.html) (http://img33.imageshack.us/i/supergrafx.jpg/)

(http://img195.imageshack.us/img195/7062/imag0045k.html) (http://img195.imageshack.us/i/imag0045k.jpg/)

(http://img15.imageshack.us/img15/7972/imag0046p.html) (http://img15.imageshack.us/i/imag0046p.jpg/)

Brand new electrolytic capacitors and new jack 8-din so that there are enough pins (the original had 5 pins).

(http://img28.imageshack.us/img28/8456/imag0047gh.html) (http://img28.imageshack.us/i/imag0047gh.jpg/)

The RGB and VSync amplifier I made from the following schematics.

(http://img13.imageshack.us/img13/2030/pcergb.html) (http://img13.imageshack.us/i/pcergb.jpg/)

(http://img69.imageshack.us/img69/3513/imag0048t.html) (http://img69.imageshack.us/i/imag0048t.jpg/)

(http://img7.imageshack.us/img7/5669/imag0056r.html) (http://img7.imageshack.us/i/imag0056r.jpg/)

Greek translation of Bikuriman world
(http://img534.imageshack.us/img534/8540/imag0057kz.html) (http://img534.imageshack.us/i/imag0057kz.jpg/)

(http://img155.imageshack.us/img155/7862/imag0061dt.html) (http://img155.imageshack.us/i/imag0061dt.jpg/)

(http://img156.imageshack.us/img156/7692/imag0053u.html) (http://img156.imageshack.us/i/imag0053u.jpg/)

(http://img600.imageshack.us/img600/6489/imag0055jz.html) (http://img600.imageshack.us/i/imag0055jz.jpg/)

Title: Re: I RGB modded my Super Grafx
Post by: grahf on February 20, 2011, 09:04:56 PM

Really nice work on the PCB.

Title: Re: I RGB modded my Super Grafx
Post by: gtsamour on February 20, 2011, 09:12:19 PM

Thanks.
I've constructed 4 of the amplifier pcbs and i made them as compact and easy to install as possible. Pulled all inputs in one side and all outputs on the other.

My Core II is next, then my Turbo Duo.

ps
I found its much easier to pull the needed signals from the expansion port (internally) compared to the chip itself. I reffer to the PCEs that have one that is.

Title: Re: I RGB modded my Super Grafx
Post by: esteban on February 20, 2011, 11:48:45 PM

Nice.

You had me at GREEKROMS.

:)

Title: Re: I RGB modded my Super Grafx
Post by: gtsamour on February 21, 2011, 12:18:32 AM

Yeah :) Its a team that translates japanese only games to Greek.

Title: Re: I RGB modded my Super Grafx
Post by: SignOfZeta on February 21, 2011, 01:46:04 AM

Nice install.

Title: Re: I RGB modded my Super Grafx
Post by: Necromancer on February 21, 2011, 02:47:42 AM

Well done; that's a very clean looking install.

Title: Re: I RGB modded my Super Grafx
Post by: SuperPlay on February 21, 2011, 07:34:20 AM

Very nice mod and good work :-)

Title: Re: I RGB modded my Super Grafx
Post by: Platinumfungi on February 21, 2011, 09:23:57 AM

Love the installation on this! Great job :)

Title: Re: I RGB modded my Super Grafx
Post by: nat on February 21, 2011, 02:27:44 PM

I had no idea there were Greek translations of any PCE games.

Title: Re: I RGB modded my Super Grafx
Post by: gtsamour on February 21, 2011, 04:12:43 PM

There are some translations in Greek on PCE games indeed (keith courage in alpha zones, klax, puzznic, shanghai, WB in monsterland), I only care about WB in monsterland though since it was my childhood love :)
http://www.greekroms.net/english/staff.php

Thanx guys,
yes I'm one of those cases that like to make everything clean and neat looking :)

I will post my Core II mod too when its ready. Its pretty much the same process as on this one...

Title: Re: I RGB modded my Super Grafx
Post by: termis on February 22, 2011, 01:32:42 AM

Awesome.  Looks great, too.

Man, I really wanna see someone do a proper region mod on the SuperGrafx, with proper switching on pin 29 of the Hu6280 and all.

Title: Re: I RGB modded my Super Grafx
Post by: SignOfZeta on February 22, 2011, 04:38:19 AM

Looking at the SGX PCB...dang, that is one extremely sparse PCB. Obviously designed by the TG-16 guy.

Title: Re: I RGB modded my Super Grafx
Post by: Opethian on February 22, 2011, 07:09:19 AM

geia sou!!! awesome work man!!! Do you happen to have Adventure Island or Dynastic Hero in greek?

Title: Re: I RGB modded my Super Grafx
Post by: gtsamour on February 22, 2011, 04:14:21 PM

No man, I'm sorry... Only keith courage in alpha zones, klax, puzznic, shanghai and WB in monsterland were translated in Greek on the PCEngine.

Patches (and not actual roms) that translate the original roms can be found at http://www.greekroms.net/english/staff.php
.

Title: Re: I RGB modded my Super Grafx
Post by: SuperPlay on February 26, 2011, 02:43:46 AM

Do you have a picture/layout of your amp board (front/back) that you could share?

If you have that would be of a great help.

Thanks

Title: Re: I RGB modded my Super Grafx
Post by: gtsamour on February 27, 2011, 04:18:56 PM

They layout schematic of the amp is already posted in my initial pictures.
The front of the amp is visible on my previous pictures. When i have the time I'll take a photo of the back and post it.

Title: Re: I RGB modded my Super Grafx
Post by: gtsamour on February 28, 2011, 02:22:26 AM

(http://img191.imageshack.us/img191/2927/dscn0272r.html) (http://img191.imageshack.us/i/dscn0272r.jpg/)

Title: Re: I RGB modded my Super Grafx
Post by: SuperPlay on February 28, 2011, 03:28:27 AM

Thanks gtsamour :-)

I was trying to create the layout using standard track veroboard and was wondering how you managed to get it so compact ;-) Now I see that you are using a spot pin style of board.

Title: Re: I RGB modded my Super Grafx
Post by: gtsamour on March 02, 2011, 10:41:21 PM

Well, its not compact enough... I don't seem to be able to fit this thing into my Core Grafx II, this console is too small and there's just not enough space in it :( I have to think of something... I hate to have to install the amplifier externally as part of the RGB- Scart cable.

Title: Re: I RGB modded my Super Grafx
Post by: incrediblehark on March 02, 2011, 11:48:58 PM

very very nice work! Clean and professional looking. As for the coregrafx, have you tried mmmonkey's amp method? http://www.mmmonkey.co.uk/console/pce/amp.htm he just uses 3 transistors in the scart cable. I wonder how picture quality compares to your amp. (haven't tried it yet myself)

Title: Re: I RGB modded my Super Grafx
Post by: gtsamour on March 03, 2011, 04:36:03 AM

Yes I've seen this 3 transistor amp. I've also read that there is a danger of wrecking the video out chip of the console if you don't use the whole resistors-capacitors-transistor cirquit.

Title: Re: I RGB modded my Super Grafx
Post by: incrediblehark on March 03, 2011, 07:38:37 AM

AH! Thats good to know, i was planning on going that route myself because it seemed the easiest but now I'm hesitant to try it out.

Title: Re: I RGB modded my Super Grafx
Post by: gtsamour on March 03, 2011, 04:22:06 PM

I'm not an expert in electronics, (i merely copied a simple cirquit) but I remember that it had to do something with the impedance of the cirquit needing to be 75 Ohm, which isn't the case in the 3 transistor amp mod.

Title: Re: I RGB modded my Super Grafx
Post by: fraggore on June 11, 2012, 08:45:57 AM

that's a very tidy bit of work there.

Title: Re: I RGB modded my Super Grafx
Post by: CPTRAVE on June 12, 2012, 07:01:02 PM

Wow! Good job would love to see that in person.