Chosen Solution
Years ago i used to power up the game boy an ac-dc adapter turned on 6v. now i found out that the adapter is broken and it’s output is about 12v / 15v. Now i put in the GB 4 batteries and it does not start. maybe the 12v adapter burn up some components? is there any fuse?
The Game Boy Power: DC6V 0.7W (DC3V 0.7W for GB Pocket)so 12 v is a little heavy ;-) I attached the schematic for it and let me know if that helps.
