SNES:SNES Jr DIY S-RGB Mod

This guide shows you how to enable RGB output on a SNES Mini / Jr using its built-in RGB amp.

Materials Required

 * The 4.5mm tool that opens the SNES
 * Philips head screwdriver
 * Soldering iron, solder, and flux
 * 26-30 AWG wire
 * Three 75 Ohm resistors, the lowest tolerance possible
 * Three 1.2k resistors, the lowest tolerance possible

Installation
The mod is pretty easy, however soldering to the S-RGB chip can be challenging.


 * 1) Disassemble the console and remove the heatsink. Locate the S-RGB chip: [[File:SNESMiniRGBModPage02.jpg]]
 * 2) Solder four wires to the pins on the “S-RGB A” chip shown below. Use a soldering tip that's extremely thin, as well as very thin solder. Make sure to tin each pin and each wire before trying to solder them together: [[File:SNESMiniRGBModPage03.jpg]]
 * 3) It's recommended to use heatshrink tubing to keep the wires together and also protect them from touching any other components. Run the cables through the hole pictured below on the right: [[File:SNESMiniRGBModPage04-1.jpg]]
 * 4) Carefully replace the heatsink. Run the wires under the heatsink, since there's enough room. The wires will touch the heatsink but won't be crushed [[File:SNESMiniRGBModPage04.jpg]]
 * 5) Cut the wires to size, add the 75 Ohm resistors to the RGB lines, then solder them to the corresponding pins on the multi-out. [[File:SNESMiniRGBModPage04-2.jpg]]

Brightness Fix
It's recommended to add resistors to the RGB inputs that adjust the brightness. The mod will work without these resistors, but it's recommended you add them.


 * 1) Solder three 1.2k resistors between the three holes located directly under pin 10 of the cartridge port and a ground point. The picture below shows non-conductive tape covering the components under the resistor, however using heatshrink tubing is a better solution overall.
 * 2) Flip the motherboard over and trim the extra length of the leads off of the resistors, as they can short to something if not trimmed. [[File:SNESMiniRGBModPage06.jpg]]