iFixit - Answers With Device "Sega Master System II"

Sega Master System II: Need info about SEGA mega drive

Tue, 04 Jul 2023 13:49:22 -0700

I am wandering if non mega drive adaptor can work? No power on led light.

Thx for answers

Thx. Very helpful info. This is how i lowered my voltage. :D but amps still low as you say. I will search other adapter. And with current adapter to play need to many time.

Maybe this power supply may work with less effort?

SEGA is alive :)))) now i can fix it :D

⟐ Edited by author July 04, 2023 at 13:49 MST

Sega Master System II: My my sega master system display is not clear

Sat, 15 Aug 2020 19:19:48 -0700

The game comes on but the sound and the image are not clear and like heaps of boxes

⟐ Answered August 15, 2020 at 19:19 MST

Sega Master System II: Button 2 not working on controller

Tue, 11 Jan 2022 17:00:01 -0700

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

iFixit - Answers With Device "Sega Master System II"

Sega Master System II: Need info about SEGA mega drive

Update (07/03/23)

Sega Master System II: My my sega master system display is not clear

Sega Master System II: Button 2 not working on controller