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View Full Version : How to mod your Super Nintendo Mini/Jr/model 2 for S-video



Thunderblaze16
08-12-2011, 01:15 AM
As it has been already 20 years since the snes was released, I though I share the celebration by giving my SNES S-video :D So for this mod, you well need the following.

-Head Screwdriver
-Wires
-One, Ceramic Capacitor C-Capacitor C-CAP
50V 0.10uF Radial pcs
-one, 220uF capacitors
-Two, 75ohm resistor

GKDyg-SWZms

First, open your snes jr all the way till you can remove the board. Locate the S-RGB video chip near the cart slot.
As shown in the pic, You want to soldier a wire to pin 17 and pin 12 on the S-RGB video chip as shown in the pic.
(I STRONGLY RECOMMEND TO GET ELECTRICAL TAPE AND COVER THE PINS AROUND PIN 17 TO PREVENT ANY CHANCES OF ACCIDENTALLY SOLDIERING IT TO THE OTHER PINS NEAR IT)

http://s17.photobucket.com/albums/b72/izarate/guia/snes2vid0.gif

http://i.imgur.com/Ym57P.jpg

Now find a safe, comfortable way for the pin 17 wire to lead out to the back of the board as well as for the pin 12 wire. After that, the wire that's leading out from pin 17, soldier the positive leg of the 220uF capacitor to it, then soldier a 75ohm resistor to the negative leg of the 220uF C. and solder the 75ohm resistor to pin 7 from the pins of the rca area as shown in the pic.

http://i.imgur.com/zplYk.jpg

Now for the wire leading out from pin 12 of the S-RGB chip, soldier the wire to a Ceramic Capacitor on one leg and on the other leg, soldier a 75ohm. After soldiering the 75ohm to the other leg of the Ceramic Capacitor, soldier the other end of the 75ohm to the pin 8, (The pin aside the one we soldier the 75omh leading to the 220uF C. at), as shown again in the pic.

http://i.imgur.com/qnBqU.jpg

Screw the thing back up and your done! :D

RESULTS

Composite
http://i.imgur.com/K7n8a.jpg
S-video
http://i.imgur.com/owKRB.jpg

Composite
http://i.imgur.com/6QgCa.jpg
S-Video
http://i.imgur.com/tVs2o.jpg

Plus! it was also noticed that the SNES Jr. actually gives as slightly better brightness than the model 1 SNES as shown below.

SNES model1 / SNES model 2
http://i.imgur.com/bE2Xu.jpghttp://i.imgur.com/3yzTm.jpg

I hope you guys enjoyed this mod and happy gaming! :D

GohanX
08-12-2011, 01:49 AM
Good job, have you been able to compare the Jr's S-Video compared the the output on the original model SNES? I did a similar RGB mod to my system a while back and I was surprised that the video was quite a bit better than a regular SNES.

Chilly Willy
08-12-2011, 02:22 AM
Wrong forum. Hardware mods go in Tech Aid. It's not just for asking for hardware aid, but also for PROVIDING hardware aid in the form of "how I did it" posts like this. Blast Processing is for software mods, not hardware mods.

Thunderblaze16
08-12-2011, 02:35 AM
Good job, have you been able to compare the Jr's S-Video compared the the output on the original model SNES? I did a similar RGB mod to my system a while back and I was surprised that the video was quite a bit better than a regular SNES.

the rocket shots are actual shots from both snes models with there s-video signals, you can see how snes m2 one has a bit clearer view than the snes m1.

ApolloBoy
08-12-2011, 03:04 AM
As someone who's modded an SNES mini for both S-video and RGB, all of the caps listed are completely unnecessary. Just use 75 ohm resistors and you're fine. The same goes for RGB as well.

Thunderblaze16
08-12-2011, 06:46 PM
I don't see no harm wit the cap soldier on, I'll leave it there just for safety though.

Drakon
08-14-2011, 09:16 PM
I did this one ages ago but I didn't use any caps just resistors and it worked fine. I also wired up rgb

Ace
08-15-2011, 12:17 PM
Oddly enough, when I added S-Video to my Super NES Mini, I saw very little difference between it and Composite. About the only thing I noticed was less color bleed and slightly sharper graphics, but it's not a really big difference like with the Genesis. RGB, though, is better than on my original-model Super NES and Super Famicom. Their RGB is a bit dark, but on the Super NES Mini, the RGB is very bright and colorful.

Another thing about the Super NES Mini is that it doesn't seem to have a yellow tint over anything produced in Composite and S-Video. I've noticed this yellow tint on both of my original-model Super NESes(and they both have different motherboards) and my Super Famicom(this one has the earliest motherboard with the SPC700 on a separate daughterboard).

Clessy
08-15-2011, 03:53 PM
Im a little confused why you'd need to mod the ssnes to give it svideo. They make a Svideo AV cable for the snes. The cable works on GC/N64/Snes.

TrekkiesUnite118
08-15-2011, 04:34 PM
Im a little confused why you'd need to mod the ssnes to give it svideo. They make a Svideo AV cable for the snes. The cable works on GC/N64/Snes.

The SNES 2 doesn't output S-Video or RGB on it's own. If you put the official cables in you'll get nothing. This is because the leads that give those signals from the Encoder chip are not connected to the corresponding pins on the AV port. This mod simply connects them to allow those official cables to work.

Clessy
08-15-2011, 05:16 PM
The SNES 2 doesn't output S-Video or RGB on it's own. If you put the official cables in you'll get nothing. This is because the leads that give those signals from the Encoder chip are not connected to the corresponding pins on the AV port. This mod simply connects them to allow those official cables to work.Ohh wow I didnt know that. Why in the hell would they do that. It couldnt of saved money if its that simply of a fix to do....

Drakon
08-19-2011, 01:35 AM
When I s-video modded my system there was a massive video quality difference.

Thunderblaze16
11-04-2012, 09:51 PM
I just improved the hell out of the pics to make it more clear, I have no idea why the pics disappeared but there back!