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Hi,
I am currently trying to revive a Game Gear (VA0). After a lot of work on it including replacing the MPU. The board finally load games and seems to works pretty well... exept one point... It endlessly reboots when the demo should start after the title screen. What is very strange is that if I press the start button and really start the game, I can play the game without notice any glitch or issue.
If somme one have any clue on what could be this issue or any advice on what I can check, it would really help me.
Many thanks for your help.

After more testing, i also have issues with button 1 and 2. The trace from buttons pads to the asic are ok. The same for the ground connection. So, I will try to replace te asic.

Author	Message
n3rd Joined: 17 Dec 2021 Posts: 12	Very stange issue on Sega Game Gear Posted: Sat Jun 08, 2024 5:57 pm
n3rd Joined: 17 Dec 2021 Posts: 12	Hi, I am currently trying to revive a Game Gear (VA0). After a lot of work on it including replacing the MPU. The board finally load games and seems to works pretty well... exept one point... It endlessly reboots when the demo should start after the title screen. What is very strange is that if I press the start button and really start the game, I can play the game without notice any glitch or issue. If somme one have any clue on what could be this issue or any advice on what I can check, it would really help me. Many thanks for your help.

n3rd Joined: 17 Dec 2021 Posts: 12	Posted: Sun Jun 09, 2024 5:45 pm
n3rd Joined: 17 Dec 2021 Posts: 12	After more testing, i also have issues with button 1 and 2. The trace from buttons pads to the asic are ok. The same for the ground connection. So, I will try to replace te asic.

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