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From: davel@hpvcla.UUCP (davel)
Newsgroups: net.micro.apple
Subject: Re: Banging noise on Apple //e,c disk dr
Message-ID: <4400001@hpvcla.UUCP>
Date: Tue, 7-May-85 20:28:00 EDT
Article-I.D.: hpvcla.4400001
Posted: Tue May  7 20:28:00 1985
Date-Received: Fri, 10-May-85 01:09:00 EDT
References: <573@spp2.UUCP>
Lines: 13
Nf-ID: #R:spp2:-57300:hpvcla:4400001:000:423
Nf-From: hpvcla!davel    May  7 17:28:00 1985



	When DOS has trouble reading a diskette after a few
	tries it "re-syncs" the head. It does this by pulling
	the head up against a mechanical stop. Because the
	head motion is an open loop control system (etc.) it
	hits the stop several times causing the banging. The 
	underlying cause is that the head alignment is 
	different on the drive that made the Beagle Bros. disk
	and your disk.

				Dave Lowe
				hpvcla!davel