[Coco] Re: weird 360K drive

[Robert Gault]

Diego Barizo wrote:
> I've got a 360K drive that's got some attitude.
> It won't read any of my disks, but will happily format , write and read 
> disks that it wrote. Those disks don't seem to work on other drives
> Also, the drive will spin even when I'm accessing other drives (It 
> doesn't attempt to read, just spins)
> I guess there is no easy way to fix this?
> 
> Diego
> 
> 

Most likely the drive is mis-aligned but you may be lucky and only the 
spin rate (rpm) is badly off. Open the drive and look for a strobe 
pattern. Then try to find the 10-15 turn potentiometer that controls 
rpm. If there is more than one such pot., don't turn anything until you 
are sure you know which is which. That may take some research on the 
manufacturer's web site.

If there is no strobe pattern, contact me by e-mail and I'll send you 
one of my programs for adjusting drive rpm with a graphics screen pattern.