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- From: msmakela@cc.helsinki.fi (Marko Mkel)
- Newsgroups: comp.sys.cbm
- Subject: Re: 1541 Disk error...
- Message-ID: <1992Dec27.232632.1@cc.helsinki.fi>
- Date: 27 Dec 92 21:26:32 GMT
- References: <1ha0rbINNaub@cs.tut.fi> <1992Dec24.071047.2553@cs.mun.ca> <1hhefhINNqbc@cs.tut.fi> <1992Dec27.015714.18226@Princeton.EDU>
- Sender: news@klaava.Helsinki.FI (Uutis Ankka)
- Organization: University of Helsinki
- Lines: 24
-
- In article <1992Dec27.015714.18226@Princeton.EDU>,
- grweiss@phoenix.Princeton.EDU (Gregory Robert Weiss) writes:
-
- > I recently arrived home to my C64 and discovered that it could no longer
- > read any files off any of my disks. I couldn't even get a directory. Well,
- > my first thought was alignment problems, but the error I found when I
- > checked the DOS error channel was "74, Drive not ready, 00, 00".
-
- I have this error every now and then. It always disappears by ordering "I" or
- "I0". Upon this instruction, the drive tries to read track 18, then does the
- famous "scraach (track 1)-ta-ta-ta-ta-ta-ta-scraach (track 18)" and then
- unexpectably turns off the light, having read the sector 0 of track 18
- successfully. After this everything works for weeks.
-
- >Repeated attempt produce the red blinking light again, but no whirr.
-
- This is why 1541 is said to be intelligent. :-) It knows if you have changed
- the disk. Why should it try reading the same, probably errorenous disk again?
- However, if you read the error channel between read attempts, the disk spins
- again.
-
- Marko M"akel"a
- University of Helsinki, Finland
- msmakela@cc.helsinki.fi
-