okunewck@gondor.UUCP (Philip E. OKunewick) (03/28/86)
I once fixed a floppy drive that had an odd problem. One
signal in the drive was shorted to ground, apparently through a chip.
Well, I spent the usual half hour or so tracing and checking through
the pc board...
It turned out that the chip that ran the radial select port
had died, and was shorting one of the signals to ground. The nifty
thing about this was that this chip was never used - the computer
used a binary select for the floppies. The radial select was an
option on the floppy to make it compatable with other kinds of
computers.
I diked the chip out of there - didn't even bother to
unsolder it or replace it, just cut it off of its pins. The drive
has run like a charm ever since.
---Duck