Aiwa Mega-CD CSD-GM1 Unit-02 Mainboard Test – Includes Both Game Units

Since the rev 2 mainboard (02-01 board) is the only mainboard that has flow on power to the Game Unit section at the moment (possibly a faulty switch – still investigating!) – we turn to it to test both the game units – that’s right, including the one I borrowed the Mega-CD BIOS chip off.