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Home▸ Forums▸ Mac Classic giving me an unexpected checkerboard. — #40▸ Mac Classic giving me an unexpected checkerboard. — #40
Post #40 by CC_333
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Hi,

My Classic II has similar symptoms, except it has solid vertical bars across the screen.

I tried recapping the analog board, and it didn't fix a thing-- I can get it to boot, however, if I disconnect the hard drive and floppy drive and let it warm up. The voltage slowly rises from about 4.2~4.35 volts until it chimes at about 4.6~4.75 volts, then it'll boot from an external, self-powered disk drive (a ZIP drive in this case), although the screen artifacts are still present, and things are very erratic and unstable. Have you tried disconnecting the drives? I saw that you did that before, but how about with the new analog board?

Good luck!

c

mp.ls