Re: 1541-Newtronics mechanism problem

From: William Levak (wlevak_at_sdf.lonestar.org)
Date: 2008-01-18 07:32:59

On Wed, 16 Jan 2008, RayBryan wrote:

> 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.

Are you sure your floppy disks are good? Do they read and write on a 
different type of drive?  Do they read and wrie on a DOS machine (assuming 
you still have one with a 5 1/4 drive?

I sometimes have to bulk erase floppies to get them to work in a different 
format.



wlevak@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org

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