From: matt (galaga_at_slingshot.co.nz)
Date: 2008-01-17 10:31:03
are old tech says disk speed is more important than alignment. just my 2 cents thanks matt ----- Original Message ----- From: "Pete Rittwage" <firstname.lastname@example.org> To: <email@example.com> Sent: Thursday, January 17, 2008 9:01 AM Subject: Re: 1541-Newtronics mechanism problem >> I have wrestling with a drive repair for weeks now. I thought I had >> it all fixed; it was reading the Dysan 224a alignment (analog) >> diskette (Commodore 970016 01 48 TPI alignment diskette) with sine >> wave tracks on 16 & 18 and 34 (according to Dysan docs) and so it >> then passed the all the Commodore Consumer Diag V2 tests except the >> #7 test to fast format and write then read selected tracks (well it >> did pass that test with one of the F15 scratch disks). But it would >> not format a floppy always reporting 21 read error 00 00. I tried >> then formatting with 3 more Newtronics drives and got that same >> response. >> >> Is this a common and well known problem with Newtronics? >> >> The Commodore 1541 Service Manual PN 314002-01 does not document this >> behaviour or symptomology (of course it is November 1985 but has some >> added pages released later). >> >> What about the program called "Alps drive check and >> alignment" (program 970127.D) on the C.D. V2 disk as "Disk Alignment" >> -41 blocks- is/was there a program called "Newtronics drive check and >> alignment"? >> > > A lot of times trying to align some of those old mechs is futile. You can > get it perfectly aligned to 18, 1, and 34, then the next time it bumps the > heads it's off a track again. > > Pete > > > > Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing list
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