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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: <4400002@hpvcla.UUCP>
Date: Tue, 14-May-85 15:41:00 EDT
Article-I.D.: hpvcla.4400002
Posted: Tue May 14 15:41:00 1985
Date-Received: Fri, 17-May-85 00:46:58 EDT
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Nf-ID: #R:spp2:-57300:hpvcla:4400002:000:821
Nf-From: hpvcla!davel    May 14 12:41:00 1985



>Noticing the //e in the top...is this unit equipped with a Duodisk?
>Or did you buy the single disks?  It seems that the newer mechanisms
>do occasionally need to be realigned, while the older ones with the
>Shugart guts had a reputation for never needing service aside from an
>occasional speed-calibration and head cleaning.

	I have had "banging" with one of my 8 year old single drives.
	In my case the symptom is slightly different in that it occurs
	only after the drive has set idle for some time (overnite).
	My guess is that the head somehow "settles" to an off track
	position. Does anyone know if DOS keeps the coils on the head
	stepper motor energized all the time (while the computer is on
	at least)?

	Dave Lowe

	P.S. I don't have a //e, I have a ][ that has had EPROM brain
	surgery to make it a ][+.