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Groups > comp.sys.amstrad.8bit > #191

Re: PCW9512 troubleshoot hints...

Message-ID <cu8ufa-nbk.ln1@seasip.demon.co.uk> (permalink)
From John Elliott <jce@seasip.demon.co.uk>
Subject Re: PCW9512 troubleshoot hints...
Newsgroups comp.sys.amstrad.8bit
References <l0ehq7$ans$1@speranza.aioe.org> <PoGdnUBrNuH3f7fPnZ2dnUVZ7oWdnZ2d@bt.com> <l0f0eh$hha$1@speranza.aioe.org>
Date 2013-09-08 13:59 +0100

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supervinx <nessuno@libero.it> wrote:
> I don't know well Amstrad kbd protocol, but since the caps lock
> led works, I could exclude a CPU failure (which is uncommon, since
> the rear expansion is directly connected to the Z80).

  The shift-lock LED is handled by the 8048 in the keyboard. It's not like 
on a PC where it gets set by the motherboard.

-- 
John Elliott

Thinks: This is what a nice clean life leads to. Hmm, why did I ever lead one?
		-- Bluebottle, in the Goon Show

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Thread

PCW9512 troubleshoot hints... supervinx <nessuno@libero.it> - 2013-09-07 06:41 +0000
  Re: PCW9512 troubleshoot hints... "Brian Watson" <Brian@imagebus.co.uk> - 2013-09-07 09:23 +0100
    Re: PCW9512 troubleshoot hints... supervinx <nessuno@libero.it> - 2013-09-07 10:50 +0000
      Re: PCW9512 troubleshoot hints... supervinx <nessuno@libero.it> - 2013-09-07 11:15 +0000
      Re: PCW9512 troubleshoot hints... John Elliott <jce@seasip.demon.co.uk> - 2013-09-08 13:59 +0100
        Re: PCW9512 troubleshoot hints... supervinx <nessuno@libero.it> - 2013-09-08 15:37 +0000

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