Question about Apple ///
athornton at gmail.com
Fri Jul 5 13:38:56 CDT 2019
I have an Apple /// that I've had for many years; it's never worked.
When you power it up, you get a checkerboard screen, where half the squares
are solid white, and the other half have a little mosaic pattern in them.
Looks like this:
Does this failure mode ring any bells? Obviously the video signal is being
generated well enough to sync a composite output. Any idea whether I
should start by replacing the CPU or the ROMs?
More information about the cctech