Restoring an XT - transfer problem

Chuck Guzis cclist at
Sat Feb 24 01:48:45 CST 2007

On 24 Feb 2007 at 1:16, Jim Leonard wrote:
> > Try masking off pin 34.
> Why would that make a difference, if Chuck does the former routinely? 
> What does pin 34 do?

It's disk change--but the PC5 should be blind to it.  Another 
possibility is that the PC5 might require a READY\ signal, which was 
supplied on the same pin.  I'm just not familiar with the ins and 
outs of the PC5.  Regardless, there's no difference between recording 
on 720K and a 5.25".360K.   I'd inspect jumpers first, then see if 
pin 34 on the cable goes anywhere. 


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