Jeremy Popp Posted March 2, 2016 Share Posted March 2, 2016 Tutorial: NES controller MOD to work on Sega Master System (I was asked to help make this MOD for a fellow Atariage member, so I figured I would post for all to see) Tools Needed:Soldering Iron and SolderWire StrippersMultimeter1 NES controller1 Sega/Atari compatible 9 pin (DB-9) joystick cable 1: Disassemble NES controller by removing all 6 screws. 2: Desolder and remove original cable and controller chip. The controller chip can be a pain, so I used small pointy wire cutters to cut the base of each leg, then I was able to remove the little legs from the board easier. Be careful not to accidentally rip the solder pad off the front, just take your time. 3: Strip each wire on the new 9 pin controller wire. 4: Using a multimeter, verify continuity of each wire, and write down which color goes to which pin. I used a paper clip to stick into each hole of the controller cable. 5: Solder the wires that correctly correspond to each button. For Sega Master System, 7 wires are used and 2 are not. They will be: UpDownLeftRightButton 1Button 2Ground Note the images in step 2 and 4, I've designated which wire will go to which part on the controller. Your wire colors may be different. In my case, the red and yellow wires were not used. 6: Next I wrap the new cable into the NES controller and make sure the controller will go back together okay and test it. After I verify it works, Then I apply hot glue to make sure the wires will stay in place. 7: Assemble the controller and makes sure all of the buttons work. You are done! 1 Quote Link to comment Share on other sites More sharing options...
7800fan Posted March 2, 2016 Share Posted March 2, 2016 Would be a bit quicker to refer to a picture of the NES' chip pinout and the functions. As long as one observes which way the notch on the chip was facing, they can follow the pins to the 6 button functions plus ground to connect with SMS controller. Atari 2600 can also use the same controller. Quote Link to comment Share on other sites More sharing options...
0078265317 Posted March 3, 2016 Share Posted March 3, 2016 The camerica freedom stick 9 pin adapter might also work. I will verify with a genesis later. Quote Link to comment Share on other sites More sharing options...
IsARealBoy88 Posted October 2, 2016 Share Posted October 2, 2016 This seems almost too easy to be true lol. I'll be giving it a shot tomorrow! Quote Link to comment Share on other sites More sharing options...
Marcho Posted April 24, 2018 Share Posted April 24, 2018 (edited) Sorry to bump an old thread, but this is seriously useful. I really want to try this, but the images seem to be broken, is it possible get them posted up again? It would help a lot! Edited April 24, 2018 by Marcho Quote Link to comment Share on other sites More sharing options...
Jeremy Popp Posted April 24, 2018 Author Share Posted April 24, 2018 (edited) Sorry to bump an old thread, but this is seriously useful. I really want to try this, but the images seem to be broken, is it possible get them posted up again? It would help a lot! BIGGER PICTURES: Tutorial: NES controller MOD to work on Sega Master System (I was asked to help make this MOD for a fellow Atariage member, so I figured I would post for all to see) Tools Needed: Soldering Iron and Solder Wire Strippers Multimeter 1 NES controller 1 Sega/Atari compatible 9 pin (DB-9) joystick cable 1: Disassemble NES controller by removing all 6 screws. 2: Desolder and remove original cable and controller chip. The controller chip can be a pain, so I used small pointy wire cutters to cut the base of each leg, then I was able to remove the little legs from the board easier. Be careful not to accidentally rip the solder pad off the front, just take your time. 3: Strip each wire on the new 9 pin controller wire. 4: Using a multimeter, verify continuity of each wire, and write down which color goes to which pin. I used a paper clip to stick into each hole of the controller cable. 5: Solder the wires that correctly correspond to each button. For Sega Master System, 7 wires are used and 2 are not. They will be: Up Down Left Right Button 1 Button 2 Ground Note the images in step 2 and 4, I've designated which wire will go to which part on the controller. Your wire colors may be different. In my case, the red and yellow wires were not used. 6: Next I wrap the new cable into the NES controller and make sure the controller will go back together okay and test it. After I verify it works, Then I apply hot glue to make sure the wires will stay in place. 7: Assemble the controller and makes sure all of the buttons work. You are done! Edited April 24, 2018 by Jeremy Popp Quote Link to comment Share on other sites More sharing options...
Marcho Posted April 25, 2018 Share Posted April 25, 2018 Awesome, thanks! Quote Link to comment Share on other sites More sharing options...
0078265317 Posted April 27, 2018 Share Posted April 27, 2018 The camerica freedom stick 9 pin adapter might also work. I will verify with a genesis later. I just tried with virtua racing and it does not work. Verifired nes and atari 2600 works. So parts work but no go on genesis. Master system might work. But I don't have one to test. Quote Link to comment Share on other sites More sharing options...
0078265317 Posted April 27, 2018 Share Posted April 27, 2018 Also found this. https://www.ebay.com/itm/Sega-Master-system-controller-with-pause-and-start-buttons/263633585626?hash=item3d61c945da:g:4EwAAOSwZ3BaUWud Quote Link to comment Share on other sites More sharing options...
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