Sega Genesis2 / MD2 clone
Recently, I acquired an old Sega Genesis 2 (Mega Drive 2) clone. Top view: Bottom view: This particular unit has a few issues: - The power indicator doesn’t light up, even though the console powers on. - The Start button on the main gamepad doesn’t work. Moreover, the problem is definitely not with the gamepad itself – I’ve connected as many as four different ones, and none of them worked properly. It’s something with the ports or the electronics. Time to disassemble the console – let’s see what’s inside and try to fix it. First, I’m removing the top cover: The original Sega console had a single board with a large number of microchips, but this clone is significantly simpler in design: two boards with external interfaces and one with the processor and memory. Interfaces Board Equipped with a DC power connector, a 9-pin mini-DIN connector with audio-video outputs, and two switches. These switches allow changing the region (Japan/Other) and the video output type (PAL...