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From: fred@cbmvax.cbm.UUCP (Fred Bowen)
Newsgroups: net.micro.cbm
Subject: Re: HELP! HELP! 1571 lock-up!
Message-ID: <923@cbmvax.cbmvax.cbm.UUCP>
Date: Tue, 21-Oct-86 10:30:20 EDT
Article-I.D.: cbmvax.923
Posted: Tue Oct 21 10:30:20 1986
Date-Received: Wed, 22-Oct-86 04:04:25 EDT
References: <402@PSUECLA>
Organization: Commodore Technology, West Chester, PA
Lines: 26

> 
>      I have a C128 and a 1571 and I was trying to use a program called
> turboformat off of the "Compute's Gazette" monthly disk.  The program
> worked fine with the C64 and 1541 but when I ran it on the 1571 it locked
> up my disk-drive.
> 
>      Ken Goodnow

I haven't heard of this problem with 1571's, but I suppose it's the same
problem as often occurs with most Commodore drives (IEEE or serial bus) whose
heads have been pushed beyond normal limits- they get stuck.  Although you
said you initialized the drive (OPEN 15,8,15,"I"), that usually 'unsticks'
the head by forcing the DOS to move the head to track 18 (often accompanied
by the most horrible grinding sound...).  If all else fails, you could open
up the drive and, with your finger, gently push the head mechanism back from
the 'hub' (that's where track 35 and beyond live). Don't do this with a disk
installed, power on, or a valid warranty :-)

You will find most 'turbo-hacker-back-um-uppers' that performed miracles for
the sluggish 1541 will run afoul when used with a 1571.  :-(
-- 
Fred Bowen			uucp:	{ihnp4|seismo|caip}!cbmvax!fred
				arpa:	cbmvax!fred@seismo.CSS.GOV
				tele:	215 431-9100

Commodore Electronics, Ltd.,  1200 Wilson Drive,  West Chester,  PA,  19380