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Article #2194Re: Write protect on a 1541 drive
From: R. L. Zarling
Date: Sat, 09 Aug 1986 20:59
Date: Sat, 09 Aug 1986 20:59
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In article <3002@caip.RUTGERS.EDU> prindle@nadc writes: > Is it possible to "write" on a diskette inserted into a 1541 when the > write enable notch is properly covered? There is a hardware interlock, that cannot be overridden by software. You cannot write on a write protected disk (unless you modify the drive). However, power glitches *can* write on *any* disk which is left in the drive when power is cycled on or off! This unfortunately often affects track 18, since the head is often positioned there when the power glitch hits. Therefore, *never* have a disk in the drive when you turn the power on or off.
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arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!bellcore!decvax!ucbvax!ucbcad!nike!sri-spam!mordor!lll-crg!lll-lcc!csustan!rayzReferences:
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!bellcore!decvax!ucbvax!ucbcad!nike!sri-spam!mordor!lll-crg!lll-lcc!csustan!rayz From: rayz@csustan.UUCP (R. L. Zarling) Newsgroups: net.micro.cbm Subject: Re: Write protect on a 1541 drive Message-ID: <129@csustan.UUCP> Date: Sat, 9-Aug-86 16:59:47 EDT Article-I.D.: csustan.129 Posted: Sat Aug 9 16:59:47 1986 Date-Received: Mon, 11-Aug-86 04:25:13 EDT References: <3002@caip.RUTGERS.EDU> Reply-To: rayz@csustan.UUCP (R. L. Zarling) Organization: CSU, Stanislaus; Turlock, California Lines: 11