av:snes2rgb
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av:snes2rgb [2009/01/29 14:16] – Link83 | av:snes2rgb [2014/02/01 10:07] – Expanded somewhat ApolloBoy | ||
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- | ====== SNESjr RGB Mod ====== | + | ====== SNESjr RGB and S-video |
{{ snes4.jpg }}\\ | {{ snes4.jpg }}\\ | ||
- | The SNES2 didn't include RGB or S-video output, for reasons known only to Nintendo. | + | The SNES2 didn't include RGB or S-video output, for reasons known only to Nintendo. |
==== The Basics ==== | ==== The Basics ==== | ||
- | This mod is fairly easy, although it requires a bit of planning and a steady hand. You will need to attach three wires (R, G and B) to pins 20, 22 and 24 of chip U4. The chip is clearly marked and located just behind the cartridge slot of the SNES. New! There is no Composite Sync output from the newstyle SNES. If you want to add this, you will need to run a line from pin 7 of the chip U7 to the sync output | + | This mod is fairly easy, although it requires a bit of planning and a steady hand. For RGB, you will need to attach three wires to pins 20, 22 and 24 (R, G and B, respectively) |
- | ==== The Procedure ==== | + | ==== The Procedure |
- | {{ http://nfg.2y.net/ | + | {{ http://nfggames.com/grafx/ |
{{ snes5.jpg }}\\ | {{ snes5.jpg }}\\ | ||
- | Shown in the top picture is the video chip. First, remove the heatshield, | + | Shown in the top picture is the video encoder. First, remove the heat sink on the 7805 then attach the four wires. Run them under where the heat sink would be, and then tuck them through a hole in the motherboard allowing them to reach the bottom of the board. You should attach the Red, Green, and Blue wires to pins 20, 22, and 24 (as well as another wire for composite sync to pin 7) of this chip. |
- | The RGB signal itself is very strong. It is recommended that you run each video signal through a resistor to tone them down depending on your monitor or personal taste (somewhere between 75 to 125 ohms). | + | The RGB signals are very strong. It is highly |
- | It is also recommended that you use a normal NTSC SNES RGB cable, i.e. one with 220uF capacitors inside on the Red, Green, and Blue lines (+ leg towards console, - leg towards display) The capacitors are usually already inside any Nintendo | + | It is also recommended that you use a normal NTSC SNES/Super Famicom |
- | In the bottom picture is where the four wires are attached to the bottom of the SNES2 AV port. In this picture the white wire (for Composite Sync) obscures where the red wire is attached for pin 1 but all four wires are attached. A clear insulating compound was used to help protect the connections and exposed wire. | + | In the bottom picture is where the four wires are attached to the bottom of the SNES2 AV port. In this picture the white wire (for composite sync) obscures where the red wire is attached for pin 1 but all four wires are attached. A clear insulating compound |
- | **Note** that the SNES2 Chroma Encoder | + | **Note** that the SNES2 chroma encoder |
There are more pictures and data on [[http:// | There are more pictures and data on [[http:// | ||
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+ | This is a picture taken with a XRGB-3 using this mod. Composite sync and 100 ohm resistors on the RGB lines were used, as well as an original Super Famicom RGB cable: | ||
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+ | {{ : | ||
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+ | ==== The Procedure for S-video ==== | ||
+ | |||
+ | Adding S-video is just as easy as adding RGB. The chroma signal is found on pin 12 of the video encoder, while luma is found on pin 17. As with RGB, each signal needs to go through a 75 ohm resistor (or 100 ohm if you find the image is too bright) before reaching the AV out. Chroma goes to pin 8 of the AV out while luma goes to pin 7. | ||
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Special thanks to [[http:// | Special thanks to [[http:// |
av/snes2rgb.txt · Last modified: 2019/08/27 20:45 by 127.0.0.1