#A1000 drive woes
29-Mar-90 19:13:32
Sb: #96001-#A1000 drive woes
Fm: Brian Bartlett 72037,570
To: Robert Rosenbach 70003,3770
Robert,
on the floppy question, it's more than likely one of two things.
Either one of the 8520 chips is blown in some way (probably the section
around the _CHNG signal) or the drive itself is damaged. The quickest and
cheapest solution to try is to swap the 8520 chip with the other one in the
system (it has 8520 as a part number on the chip). If it's at fault, then
the problem should move to the serial port (these chips do a lot of
different functions). BTW, they are VERY static sensitive, so ground
yourself before touching anything inside the machine.
Now, if that doesn't work, it's a problem with the floppy drive itself
and you have a couple of routes to go. One, get an external floppy and use
the guts of it to replace the internal floppy (verifying that all jumpers,
etc match) or let someone else replace the drive for you.
BTW, forgot to mention something. If it is one of the 8520's at
fault, just get a new one. They don't cost much (right around $20).
Good luck, and I hope this helps.
Brian J. Bartlett