[comp.sys.mac.wanted] Need to test/exercise/diagnose bad floppy and IWM

jcs@zodiac.phy.duke.edu (03/10/91)

Folks,
The internal drive on my mac corrupts disks and makes them
unreadable. I have swapped the drive and get the same problem,
i.e., reads are ok, but any write access to the disk renders
it unreadable ("Do you wish to initialize...").

I have checked power supplies (all ok), cleared PRAM, run
disinfectant. I now believe I have a hardware problem not
necessarily the floppy. (I have a mac 128 upgraded to 512ke
by apple, 3rd party upgrade to Mac plus). Possibly the IWM.

If anyone knows of diagnostic software that might isolate
the problem please let me know. (Even if the software is
unavailable to non-apple people, if I know its name I can
have the local repair people get it.)

Please reply to me by mail and I'll summarize,
Thanks,
Happy Mac'ing,
John Swartz
jcs@zodiac.phy.duke.edu
919-684-8279
--
	John C. Swartz					1-919-684-8279
	Duke University Dept. of Physics		jcs@phy.duke.edu
	Durham, N.C.      27706