Can anyone here please help me out with some much needed info? I'm looking to perform the mod from http://www.gamesx.com/wiki/doku.php?id=av:av_mods that would allow me to install an SP/DIF Toslink connectoir inside the SNES so I could send a digital signal to my receiver. Does anyone here have any experience with this mod? Also, is it very difficult to perform and are there any needed parts (other than the standard issue soldering iron and gamebits)? If anyone has a more comprehensive guide to performing it, please let me know. ..... Is it even possible to go beyond S-Video on the SNES? And also, I looked up the mods for the NES 2 (toploader) that would allow me to output composite video in addition to stereo sound. GAMESX has the mod for A/V (composite plus sound) but I don't know if it is stereo... Is it even possible to get stereo out of a NES 2? If so, how should I go about accomplishing coposite plus stereo mod on the NES? I know it has five channels and such and such, but if anyone has a clue, then please give it to me.
I've heard it was possible by splitting the Pulse/Triangle and the Noise & DMC sound channels to correspond on the left or right audio outputs. The system must be opened and modified for this to be possible though. 1080Peter, I advise that you should try this on the 1st brand NES consoles, as there are instruction for modifying those brands somewhere on the net.
Adding stereo to a NES/Famicom is a hack. It is not meant to be stereo, but the NES outputs the audio on 2 pins of the CPU internally before it is mixed together. By piggybacking onto the CPU, by soldering wires on pin 1 and 2, you can output "stereo". For it to sound good, it is recommended that you make a small mixer too, and adjust that to your liking. Some people think more bass is really cool ) Check out my collection thread with mod pictures: http://assemblergames.com/forums/showthread.php?t=6836 Cheers! CF
Also, does anyone know where I can find a board schematic pinout of the NES2 and the pin locations of the two pulse wave and the three others? I know it makes much more sense to do this on a regular NES, but I'm determined to work something on the toploader.
NES schematics: http://64.53.95.207/schematics/schematics.html Kevin Horton has made this schematic of the audio path: http://nesdev.parodius.com/NESAudio.gif NES toaster, NES2 toploader, Famicom, Famicom AV, whatever, as long as your Nintendo is not a clone with "NES on a Chip", you can use the same instructions to do this mod. The audio is output from the CPU on pin 1 and 2 and then mixed to mono. The five "channels" are internally to the CPU. There are only 2 pins with audio. So as long as you find a 2A03 chip (the CPU) in your NES it is all the same.... A good reference on the NES CPU: http://nesdev.parodius.com/2A03 technical reference.txt CF
Thank you for this most valuable information. I'm ordering a 30-piece security bit set from Newark.com that includes the 3.8mm, 4.5mm, and tri-wing bits so I can get cracking on my consoles. They'll arrive after Thanksgiving, but I'll have them before the holiday break. I'll definitely post pictures of the mod process for lookings. ... What kind of wiring do you recommend I buy to connect pin x to pin y located on distant parts of the PCB? Heck, I'll go all the way and ask if it is possible to mod component output onto the SNES. NOT RGB/SCART as those aren't common around here (SCART in the US, anyhow), but just the Red/Green/Blue component connection. I AM eager to learn the ropes in modding..
RGB is not component video. You'll need an encoder chip to produce it from the raw RGB inside the console, just the same as when you mod them to output S-Video or composite-video. The only reason people mod consoles to have a SCART output is because the RGB connections inside the console can be fed straight into the TV (often without even having any buffering) to get the best possible picture. American TVs are distinctly substandard in terms of input possiblities... Stone
Component to RGB converter: http://us1.webpublications.com.au/static/images/articles/i1015/101537_2mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_3mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_4mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_5mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_6mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_7mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_8mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_9mg.jpg <-- schematic http://us1.webpublications.com.au/static/images/articles/i1015/101537_10mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_11mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_12mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_13mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_14mg.jpg <-- schematic http://us1.webpublications.com.au/static/images/articles/i1015/101537_15mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_16mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_17mg.jpg http://us1.webpublications.com.au/static/images/articles/i1015/101537_18mg.jpg RGB to component converter: http://us1.webpublications.com.au/static/images/articles/i1026/102648_2mg.jpg <-- schematic http://us1.webpublications.com.au/static/images/articles/i1026/102648_3mg.jpg http://us1.webpublications.com.au/static/images/articles/i1026/102648_4mg.jpg http://us1.webpublications.com.au/static/images/articles/i1026/102648_5mg.jpg http://us1.webpublications.com.au/static/images/articles/i1026/102648_6mg.jpg http://us1.webpublications.com.au/static/images/articles/i1026/102648_7mg.jpg http://us1.webpublications.com.au/static/images/articles/i1026/102648_8mg.jpg http://us1.webpublications.com.au/static/images/articles/i1026/102648_9mg.jpg http://us1.webpublications.com.au/static/images/articles/i1026/102648_10mg.jpg http://us1.webpublications.com.au/static/images/articles/i1026/102648_11mg.jpg http://us1.webpublications.com.au/static/images/articles/i1026/102648_12mg.jpg <-- schematic http://us1.webpublications.com.au/static/images/articles/i1026/102648_13mg.jpg RGB to compenent converter: http://www.ivojo.co.uk/js-technology-rgb-component.htm Regards, CF
If you are going to mod a top loader NES with composite RCA A/V, then I suggest not using the gamesx mod, which is old and results in video that doesn't look as good as the front loader toaster NES, which is the benchmark for A/V quality out of an NES system. Instead, use the newly developed toploader AV mod version 2: http://www.digitpress.com/forum/viewtopic.php?t=73222 It produces A/V output quality that is as good as the original front loading toaster NES.
Front loader NES by no means sets the bar for composite video... The AV Famicom does. Where you should look for a composite mod is NESDev or better yet, Yahoo Japan for a PPU mod board like I did, I've compared my mod-board Famicom side by side with my AV Famicom and found the picture to be identical. That Famicom also has dual-mono "stereo" audio, I really don't see the point. Some TVs/equipment I guess don't detect mono audio (and hence the need for dual mono) If I were mod a console for that, I'd surely split the two audio pins which gives the square channels on one side, triangle, noise and PCM on the other. Of course you'd need to attenuate the dominant channel though to bring it back into line which isn't necessary with dual mono. I don't know how in the world you could hear about SNES S/PDIF but still miss this site: http://alpha-ii.com/Info/snes-spdif.html
So lets see here. The SNES can do RGB video output and even component video output via a SCART RGB to component converter box, it can do digital audio output, and it is capable of multiplayer over the internet using the X-band. Quite ahead of its time, I might say
