Date   : Thu, 22 Jul 1999 20:25:53 +0100
From   : Graham Bisset <ee@...>
Subject: Re: DFS Installation

At 12:54 22/07/99 +0100, you wrote:
>I have just installed a DFS to my BBC Model B, and am having some problems
>with it.
>
>The interface seems to be working more or less, because I can see the
>catalogue entries of my disk collection, but the drive is refusing to access
>any tracks other than track 0. I know the drive is OK, because it works fine
>on my BBC master. I can even write small files onto the disk and read them
>back, but as soon as the beeb tries to step the head I get an error message
>(error 18).
>
>Does anyone know enough about disk-drives/DFS to offer some suggestions ?
>

Emmm...I had this same problem when I first installed my BBC DFS
many many moons ago.  What model of board is it ?

If its a Model 4 or above then I'm assuming you *HAVE* removed
jumper S9 ?

If this is NOT removed, you'll never get it to go past track 0.
S9 is located just right under the Acorn logo, next to the PSU
and just up and to the right of one of the power cables.

Hope that helps.

>P.S. The keyboard links are not set (I didn't get a DIP module with the DFS
>chips) is this the problem ?
>

Unlikely, although I'd advise you to make one of the links (4?) 
to effectively do the *OPT 7,3 to make the drive run as fast as
possible.

Let us know how you get on!

Cheers
Graham