SNES component mod

Nintendogoon401

I've just noticed that the Super Famicom I bought didn;t have the S ENC chip.  Not sure if a component mod will work but this is what video encoder chip I got 









Can somebody give me an idea as to what pins are red, green, blue and whatever else I need?



I got some RCA jacks I bought from RadioShack but I'm not sure if I need any other parts to complete the mod.  What I planned on doing was taking the wires and sliding them through the vent holes so I don't have to modify or cut out the plastics

Pikkon

Your video encoder does not support the component mod,you would need a snes with a s-enc chip to get the job done.



Only thing you could do is a scart to component converter.

Nintendogoon401

What about the very early models? I have the US 1991 SHVC-CPU-01 board but I'm unsure on how to wire it all up. I've seen pictures and videos online of these models working with a component mod.

Pikkon

Yes,you can mod that one easy.







When I did the mod I wired the red the same as the blue in the diagram but used 100uf caps instead of 220.



I have modded around 4 or 5 snes for component so if you need any help or I could install it for you let me know.

SinNombre

Well you COULD use that chip if you built the circuit here:

http://www.sega-16.com/forum/showthread.php?22237-New-RGB-to-Component-converter-design-using-the-BA7230LS/page31



Just tap the R, G, B out pins on the encoder chip.



It's more work but you'll soon be modifying all of your systems for component video when you do it...

Nintendogoon401

Well I've tried last night to mod my Super nintendo and this is how it's looking













However, it wasn't working. I might be missing components or whatever but all I did was take 100 ohm capacitors from a red ring 360 and soldered them to the red and blue wires, no other components. I honestly can't read the schematic so I think that's whats causing some issues.  Right now I'm trying to read up on reading schematics just to familiarize myself

Nintendogoon401

Just an update, I did go back and looked at the schematic with a better understanding. What I did was purchase a 22k ohm, 100k ohm resistors and the 3904 transistor. Now will that be everything I need minus a test board to hook up components to?

Nintendogoon401

Alright so I'm still trying to attempt the mod myself. Please don't geek at this but this is my first test board circuit I've ever built.













As to where the 5v to the transistor goes, I don't know. This is pretty much my first dive into building a circuit. I've only previously soldered modchips and RGH chips to a 360 and that's pretty much it.

SinNombre

Let me ask you this: what type of TV are you trying to hook this up to? Most newer flat screen TVs won't accept the 240p signal that this mod outputs. Older CRTs should though. My Panasonic Plasma from 2008 does as well. Basically I'm saying that even if your circuit is built correctly, a newer TV probably won't give you a picture.



I'm not sure but did you solder your capacitor legs together on the proto board? That's no good if you did.



Also, looking at one of your pictures I can see that you have the capacitors hooked up backwards from the encoder chip. The stripe on the capacitor is the negative leg. The schematic shows it being hooked up from the encoder chip to the positive leg, so you had it reversed in that second picture you posted.

Nintendogoon401

Damn... I had the capacitors the opposite way the first time and there soldered in like the capacitors. Don't know why I turned them around. Basically I'm trying to use this mod on a 24' Insignia LED TV.  What I was trying to achieve is trying to get the SNES to output component video instead of having to invest the money in a upscaler.  I found a video on YouTube that basically shows this one dude with that encoder chip on a HDTV as well as a old school CRT television

SinNombre

Supposedly if you take a composite signal and plug it into the green component input jack on your TV and get a picture then you should be good for receiving the 240p component signal. Just a way you could test to determine whether or not the issue is your TV or the circuit you built.

Pikkon

^

That's the best way to test,if you get a black and white picture your tv supports 240p component.

Nintendogoon401

So basically my TV dosent support 240p component I guess. When I tried it all out after hooking it up with just the caps I got a blank screen. I should try the tv in the living room tomorrow just to see if it was indeed my tv

Edit: I did try just the green jack on a different HDTV this time. It's a 32' or 40' Samsung model no is LN40B540P8FXZA. What I did get was a fuzzy picture like it was a bad rf jack. Maybe if I grounded the wire I woulda got a different result but I did see something as opposed to nothing from the 24'

RiverCityRansom2

Originally posted by: Nintendogoon401



Damn... I had the capacitors the opposite way the first time and there soldered in like the capacitors. Don't know why I turned them around. Basically I'm trying to use this mod on a 24' Insignia LED TV.  What I was trying to achieve is trying to get the SNES to output component video instead of having to invest the money in a upscaler.  I found a video on YouTube that basically shows this one dude with that encoder chip on a HDTV as well as a old school CRT television

 

Thats my vid lol.



I finally got around to ordering the capacitors I needed....and I have another 3-4 old model snes that have the 6592f and or S-ENC encoders...I Had the BA6592f encoder in that snes seen in the video.



Im gonna work on a 1993 S-ENC encoder model snes next week and supposive on this model you dont need any caps just direct wiring. But being ready I have all parts needed.



If you need any help get at me since ive weeded thru alot of the BS online when it comes to these mods.



Heres a guide for versions of SNES and encoder chips enclosed, however this guide doesnt not mention S-ENC A encoders which I know exist and im not sure exactly if the wiring is the same, let alone the pin outs.



http://console5.com/wiki/SNES





The easiest way to tell if your snes can be modded for component without taking it apart is if it has EJECT printed in WHITE on the button instead of etched/raised.

Pikkon

On the S-ENC encoder models I always add 220 caps on pin 1 and 24 of the encoder chip and for green I take it from pin 7 of the muli-out and add a 75 to 100 ohm resister.