Did you have a joystick or RAM expansion on the back by any chance?
Basically the edge connector was not sufficiently protected and a loose connection could fry the ULA or other components quite easily.
Basically the edge connector was not sufficiently protected and a loose connection could fry the ULA or other components quite easily.
Not sure what the problem with the +2A would have been though, because it had proper joystick ports, and I'd stopped using the light pen by then.