My RGB modded TG16

[broken]

Thought I would share a recent RGB mod to my TG16.


RGB modded it with stereo audio and composite video as sync. Used a mini 8 pin din and installed it where the useless RF output was at keeping a stock external appearance. Borrowed this idea from MMmonkey.
http://www.mmmonkey.co.uk/console/pce/rgb.htm

The RGB amp design came from GameSX. It's the regular SC1815 transistor based amp.
http://www.gamesx.com/rgbadd/duorgb.php










This was my first time building an RGB amp and actually working inside a TG16. Pretty happy with the results. Other than some very minor jailbars when there is a light, full screen background, the RGB is very nice. Hooked up to my 20 inch Sony PVM. Next time I build one of these amps, I will make it smaller and probably lay some parts down (like the 220uF caps) so that it has a lower profile.

[Drakon]

That looks sexy.  The s-video mod is another awesome thing to add.

[HercTNT]

Thought I would share a recent RGB mod to my TG16.


RGB modded it with stereo audio and composite video as sync. Used a mini 8 pin din and installed it where the useless RF output was at keeping a stock external appearance. Borrowed this idea from MMmonkey.
http://www.mmmonkey.co.uk/console/pce/rgb.htm

The RGB amp design came from GameSX. It's the regular SC1815 transistor based amp.
http://www.gamesx.com/rgbadd/duorgb.php










This was my first time building an RGB amp and actually working inside a TG16. Pretty happy with the results. Other than some very minor jailbars when there is a light, full screen background, the RGB is very nice. Hooked up to my 20 inch Sony PVM. Next time I build one of these amps, I will make it smaller and probably lay some parts down (like the 220uF caps) so that it has a lower profile.

My rgb modded duo-r also has light jailbars. I don't think its possible to get rid of them. otherwise the picture is great.

[PunkicCyborg]

Nice work! Does your mod also output composite from the din jack like duo RGB mods?

[broken]

Nice work! Does your mod also output composite from the din jack like duo RGB mods?

Yup. I opted to run composite video to the din 8 instead of amped composite sync. My monitor has no problem accepting composite video as sync and its nice to have a fall back video output in case it's needed.

[NightWolve]

My rgb modded duo-r also has light jailbars. I don't think its possible to get rid of them. otherwise the picture is great.

I believe I read that this problem (along with audio hum) can be solved if you do a full capacitor replacement using higher quality tantalum or ceramic types instead of the cheap aluminum electrolytic kind. Both chop and thesteve said I should've used ceramic/tants when I did a full capacitor replacement for my Turbo Express and that I could've gotten rid of the very blatant audio hum, which is WAY more apparent when you use headphones. I'd have to change all the power and audio related caps if I wanted to go back and redo the job just for that.

But anyhow, I'm sure I read somewhere that better caps will solve this particular video problem, but you'd have to spend quite a bit more for tants/ceramic is the thing. Digikey can sell you many of the higher value caps in ceramic form, they're a lot more common now. And if the value isn't available, you'll have to get a tant though they cost even more than ceramic...

[thesteve]

also strategically placed ceramic caps around the HUC6260 can eliminate 99% or better

[HercTNT]

also strategically placed ceramic caps around the HUC6260 can eliminate 99% or better

Were else could i place ceramic caps? you had me change one on the cpu i think. are there other places that would help?

[thesteve]

1 more place i found, pin41 to ground

[HercTNT]

Ok thanks, i will look into that

[HercTNT]

I already have one ceramic cap sitting in that area and while it helped alot i'm lucky i did not bork anything. I can't get to pin 41. I'm just gonna let that second cap go.

[Game-Tech.US]

also strategically placed ceramic caps around the HUC6260 can eliminate 99% or better

Do you think you could go so far as to redo the cap replacement charts with new ones that have ceramic or tant values in place of the electro's and add these extra improvement caps also?
That would be great!
I think we've talked about tants in place of electro's and how the tant value can be much smaller than the electro it replaces, but what about ceramics, do they have to be the same value as the electro its replacing?
Still it would be nice to know for sure what value tant to use in place of certain electro values.

[thesteve]

tant and ceramic perform quite close
for coupling caps 10uf to 20uf will easily replace 100uf aluminum.
for signal pass caps use same value.

you cant really over do a coupling cap, so its not necessary to change values

[CGQuarterly]

I really like how that turned out.  I got rid of my TG16's in favor of a Duo-R, but had I seen this first, I would have kept one and modded it.  I never could figute out where to put the jack for the RGB cable without it looking crappy, but that looks stock!

Chris

[Marll]

Anyone out there have any experience modding the TGCD base for RGB? I'd like to mod my original unit, and know that I can tap off of the expansion bus in the CD base, and place a DIN8 in the "wing" section of the base, just want to get a feel for how difficult that is.

End goal is that I'd be using RGB to SCART to Component or HDMI. Preferrably I'd like to go SCART to HDMI (as I'm pretty sure a DIN8 to HDMI cable doesn't exist) and wire stereo sound to the DIN as well. In theory is seems relatively simpe and there are a few places I've seen that sell pre modded amplified DIN to SCART cables for just such a purpose.

My biggest problem is finding the time and examples of exactly what I want to do to make sure that I don't butcher my precious original system