Re: Replacement drive mechanism for 1581

From: William Levak <wlevak_at_SDF.ORG>
Date: Thu, 27 Jul 2017 01:20:05 +0000 (UTC)
Message-ID: <Pine.NEB.4.64.1707270107410.1203@sdf.lonestar.org>
I finally got back to looking at this. It turns out that the floppy disk 
that I was using to test the drive was defective.  Using a good disk, I 
have complete success.  The only change I made was to line 14. This is 
listed as NC on the 1581.  I disconnected it in the cable also, just to 
be sure.

This proves that you can use a HD PC drive in the 1581 without changing 
either. You only need my cable to connect it.

Drives that I have tested that work:

Chinon FZ-357
Citizen 0sda-90G-U
JPN 701B 6031B
NEC FD1231H
NEC FD1231T
Newtronics D359T3 083899
Teac FD-235HF 4291-U
drive with no label that looks like Newtronics

Also, the following drives did not work:

Newtronics D359T3 088201
TEAC FD-235HF 3217-U

I will need to retest these on a PC.


On Fri, 23 Sep 2016, William Levak wrote:

>
> Partial success.
>
> I got rid of the "drive not ready error" by disconnecting line 10 (motor 
> enable 0".  Apparently this was handled first, preventing motor enable 1 from 
> working.
>
> I can read, but attempting to format a disk gives various read and write 
> errors.
>
>
> wlevak@sdf.lonestar.org
> SDF Public Access UNIX System - http://sdf.lonestar.org
>
>      Message was sent through the cbm-hackers mailing list
>

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

       Message was sent through the cbm-hackers mailing list
Received on 2017-07-27 02:00:02

Archive generated by hypermail 2.2.0.