Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!hellgate.utah.edu!cc.utah.edu!tjacobs
From: TJACOBS@cc.utah.edu
Newsgroups: comp.sys.mac.hardware
Subject: Re: problem with IIcx 1.44mb drives
Message-ID: <97872@cc.utah.edu>
Date: 8 Oct 90 19:01:16 GMT
References: <CMM.0.88.654785141.baker-r@hpuxa.ircc.ohio-state.edu>
Lines: 25

In article <CMM.0.88.654785141.baker-r@hpuxa.ircc.ohio-state.edu>, baker-r@HPUXA.IRCC.OHIO-STATE.EDU (Robert Baker) writes:
> I'm the hardware support guy for a lab with 50 Mac IIcxs and my latest
> problem is with 3 of 'em(#2,#11,#35) not recognizing SOME known good 
> disks.  You see, we do periodic restores to the hard drives with disks 
..
> any ideas / suggestions will be appreciated
> 

I have had the same problem with my CX at home. I took it apart and discovered
a *LOT* of dust in the box. (Nice design APPLE!) SO, I cleaned up the floppy
drive and then proceeded to close off all the air access holes & bottom so
that the floppy couldn't suck air through its inlet port.

The drive cleaning seemed to fix my problem for now. We'll have to see if it
stays fixed!

There was also a post a while back about the phase lock loop circuit being
defective on some drives. The old drive controller boards are green, the
new ones are blue.

Hope this helps.

Tony Jacobs
Center for Engineering Design
University of Utah