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Troubleshoot a Disk ][ with no known-good anything?



Hey gang,

I've decided ti return to troubleshooting the //e enahnced's disk ]
[ drive.

Right now I use ADTPro to bare metal boot strap into the ADTPro Apple
II client. When I try to format a disk, I get an error to the effect
of "Check Drive Door / Disk".

I've already cleaned the drive head with isopropyl. I've only got one
card, so I have no way to test if that's the problem. The disk does
spin when it turns on, but I can't write or boot. I've purchased some
unused 5.25" so I can hope that the disk media isn't the problem.

Is it possible to boot strap a floppy disk config utility straight
into RAM, and then check that for timing issues?

JB