<![CDATA[iFixit - Answers With Device "Sega Master System II"]]> https://www.ifixit.com/Answers/Device/Sega_Master_System_II/Unanswered?rss=yes en-US Thu, 14 May 2026 13:40:09 -0700 <![CDATA[Sega Master System II: Button 2 not working on controller]]> Hi I am having an issue with a master system 2 that i have just purchased. Basically, Button two is not working. Have tried and bought new controllers to rule that out. Continuity between pin 9 on the controller connecter is okay and pin 9 to resister R6 is also okay and leg 20 on the IC4 chip to R6 is fine. I have de-soldered and re-soldered the controller connecter just to ensure a good connection. Could the ic4 chip be dead? I really want to solve this for my master system 2

Thanks

]]> https://www.ifixit.com/Answers/View/718103/Button+2+not+working+on+controller https://www.ifixit.com/Answers/View/718103 Tue, 11 Jan 2022 17:00:01 -0700