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From: rajah@ohstpy.mps.ohio-state.edu
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Spurious "Disk is Write Protected"
Message-ID: <9675.27e10c98@ohstpy.mps.ohio-state.edu>
Date: 15 Mar 91 23:04:08 GMT
References: <103405@unix.cis.pitt.edu>
Lines: 31

In article <103405@unix.cis.pitt.edu>, djbpitt@unix.cis.pitt.edu (David J Birnbaum) writes:
> My 5-1/4" 1.2M floppy drive has been refusing to write to diskettes,
> telling me that the "Disk is Write Protected."  This problem ......
> 
> The diskettes are all high quality and formatted normally.  There is no
> visible dust or debris inside the drive in question.
> 
> Is this a known problem?  Is it one I can repair by myself and, if so,
> how?  Given the bargain basement prices of disk drives, it hardly seems
> worth getting it repaired professionally, but if all it needs is some
> particular cleaning in some particular place, I'd be grateful if some-
> one could let me know.
> 
> Thanks,
> 
> David
> 
> =======================================================================
> Professor David J. Birnbaum         djbpitt@vms.cis.pitt.edu [Internet]
> The Royal York Apartments, #802     djbpitt@pittvms.bitnet   [Bitnet]
> 3955 Bigelow Boulevard              voice: 1-412-687-4653
> Pittsburgh, PA  15123  USA          fax:   1-412-624-9714

  we experience the same problem with a computer in our lab. Drive "A"
  simply refuse to write. But it can copy from drive "A" into "C" or 
  into memory. So no problem with the media (disk). I guess the drive 
  somehow feels there is a protection tab on the disk. Probably the tab
  sensor does not move freely. We are going to check it soon. Any other 
  suggestion on this is appreciated. Thanks,

  Rajah.