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Article #553

Re: MFM Harddisc size

#553
From: R Voisey
Date: Thu, 19 Nov 1992 09:09
29 lines
1945 bytes
In article <1992Nov17.180524.42564@urz.unibas.ch>, gaspar@urz.unibas.ch writes:

|> > bigger than 50Megs you have to swap a link (to change sector size I think).
|>                                / ^^^^^^^^^^^
|> Could someone tell me what this means? 

|> 9 heads and when I enter that parameter I get a message that I might! 
|> swap link 3 or something like that.

On the Archimedes motherboard there are a number of links, consisting of
small plastic jumpers which bridge two upright metal pins.  These can be
set (jumper attached) or unset (jumper removed).  Sometimes there are 3
vertical pins, and the jumper can bridge the middle pin to either of the
other two (but not both at once).  Jumpers are identified by the letter
J followed by a number - this will be printed onto the PCB next to each
jumper.  So, if you want to swap link 3 you have to take the lid off your
machine, and find J3.  If it's a two-pin link, and it's currently set,
then remove the jumper.  If it's two-pin and unset, then obtain a jumper
and attach it.  If it's a three-pin link, then swap the position of the
jumper.

Hope that helps

Bob

-- 
  Robert J. Voisey  :  r_voisey@csd.uwe.ac.uk
         -- Probug Software Developments --
162 Staplehill Rd, Fishponds, Bristol, Avon, England
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Message-ID: <1992Nov19.090920.8363@csd.uwe.ac.uk>
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References: <1992Nov16.103443.42555@urz.unibas.ch> <1992Nov17.105656.22343@csd.uwe.ac.uk> <1992Nov17.180524.42564@urz.unibas.ch>

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Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!warwick!uknet!gdt!uwe-bristol!csdsun!r_voisey
From: r_voisey@garlic.uwe.ac.uk (R Voisey)
Newsgroups: comp.sys.acorn.tech
Subject: Re: MFM Harddisc size
Message-ID: <1992Nov19.090920.8363@csd.uwe.ac.uk>
Date: 19 Nov 92 09:09:20 GMT
References: <1992Nov16.103443.42555@urz.unibas.ch> <1992Nov17.105656.22343@csd.uwe.ac.uk> <1992Nov17.180524.42564@urz.unibas.ch>
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