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From: dogcow@umich.edu (Tom Spindler)
Newsgroups: comp.emulators.apple2
Subject: Re: Need help with dead Apple Disk II drives
Date: 30 Nov 1997 23:59:29 GMT
Organization: University of Michigan
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>>They chatter for about three seconds when first powered up , then just
>>merrily spin along indefinitely with no attempt to find the boot
>>sector on the diskette. 
>>
>>Is there anything I can try at home before biting the bullet and
>>trying to buy replacements?

If you have a disk that has a good track 0 sector 0 sector, you can do
everybody's favorite yesteryear pastime: boot tracing!

CALL-151
9600<C600.C6FFM N 96F9:59 FF N 9600G

If the drive can read any data at all, it'll come back at you and beep within
two or three seconds. This'll work with DOS, PRODOS, or any other disk that
can boot. (Heck, it even works with most disks that can't boot.)