On Tue, 27 May 2008, Tony Duell wrote:
Anyone have experience with these? I have a defective unit (purchased on
eBay - sad story) that tries to bash the drive head to death against the
Track 0 stop when turned on. I picked up the service manual and
schematics and was able to verify that the Track 0 sensor was working and
that that NTRACK00 (pin 34) on the 2793 FDC chip is pulled high at that
point.
I don;t have the data sheet in front of me (and I certainly don't haev
the 1050 schematics here), but if that signal name 'NTRACK00' means the
obvious thing, it's _not_ Track0. In other words it should be low when
the head is on track0.
That threw me as well. There must be a misprint somewhere, since the unit
works just fine when I substitute a known-good 2793 from another drive.
Just ordered a couple of them and hope to get this thing up and running
soon.
Steve
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