Date   : Sat, 24 Sep 2005 07:49:34 +0100
From   : Mike Tomlinson <mike@...>
Subject: Re: Strange 51/4" drive fault

In article <000901c5c003$76c87250$9d2e1152@...>, Helen & John
Simpson <helenandjohn.simpson@...> writes

>Basically the head is able to move towards the centre of the disc, but
>it doesn't like going back the other way. The motor buzzes and the head
>struggles to move. I tried lubricating the slides, but this didn't help.

The step rate is too fast and the drive can't cope with it.

If you're using a BBC and it has switches or wire links fitted to the
bottom right of the keyboard PCB, make sure links 3 and 4 are OPEN.

If you're using a Master, type *STATUS and look for the FDrive setting.
I bet it's set at 3.  *Configure Fdrive 5, ctrl-break and try again.