Re: 1541-Newtronics mechanism problem

From: RayBryan (raycomp_at_visi.com)
Date: 2008-01-18 21:03:30

On Jan 18, 2008, at 12:32 AM, William Levak wrote:

> 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.
I have tried the diskettes in other 1541 or '71 drives.   I only read  
old MSDOS diskettes these days on the 1571.
--Ray

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|Raymond C. Bryan  651-642-9890 vox      | The battle is sometimes |
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