Every couple of years I get out my old Apple II Plus units (x2) and try to get one up and working. It has been this way for a while- I use one to fix the other, since storage is not good for these old boys.
This time I have many more bad RAM chips (x6), 2 bad 174's (from row 'B') - one causes video to glitch, and the other causes the keyboard to repeat keys forever- why did these die in storage?
Also, one of the units, when good parts are put in, no longer has color. What causes the color to no longer work?