Date: Tue, 25 May 1999 23:38:54 +0200 (CEST) From: Wilko Bulte <wilko@yedi.iaf.nl> To: ken@plutotech.com (Kenneth D. Merry) Cc: grog@lemis.com, dwhite@resnet.uoregon.edu, dburr@pobox.com, freebsd-questions@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG Subject: Re: Help! - "parity error during data-in phase" when using CD-R drv Message-ID: <199905252138.XAA05348@yedi.iaf.nl> In-Reply-To: <199905252022.OAA04678@panzer.plutotech.com> from "Kenneth D. Merry" at "May 25, 1999 2:22:16 pm"
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As Kenneth D. Merry wrote ... ... > > If it were the cable, the other devices wouldn't work either. And it > > wouldn't explain why this happened suddenly. > > It could be the connector on the CD-R, and not the cable. Unfortunately > narrow SCSI devices have the pins on the device instead of the cable. It's > much better, IMO, to have fragile things like pins on the cable, which is > much cheaper to replace. Narrow connectors have much more robust pins. But there is something worth checking: -does the connector on the drive have a SCSI connector that is surface mount soldered to the PCB? I hope you know what I mean. I once suffered the most mysterious problems using a DAT streamer. It proved that one of the pins had been 'lifted' out of the solder on the PCB. Sometimes it worked fine, sometimes not. You can try by 'wiggling' the cable to see if it works if you push it one way or the other. > > >> the SCSI CD-recorder that does not work. It fails when accessing mounted > > >> CD's (doing a 'du' of the CD will bring the error on really quickly), and > > >> also I cannot use tosha to grab audio tracks off of it (same error). I > > >> don't dare trying to write a CD on it... > > > > > > It may not support those operations. How old is the CDR? > > > > If it doesn't support the operation, it would say so. A parity error > > suggests that there's something wrong with the connection or the > > device. We've ruled out the connection. > > It doesn't rule out the connection, since the cable can be good and the > drive connector can be bad. I second Ken. This smells like a bad connection of some sorts. A connector punched to the flatcable that is slightly misaligned with respect to the cable wires is also something that makes you bang your head to the wall. I had that happen to me twice. The replacement cable had the same problem Argh :-(. All other devices on the same cable worked fine. Advice: take a *very* close look to your cable and CDR drive's connector. Wilko | / o / / _ Arnhem, The Netherlands - Powered by FreeBSD - |/|/ / / /( (_) Bulte WWW : http://www.tcja.nl http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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