10 Oct
2001
10 Oct
'01
8:30 p.m.
Tony,
The machine powers up okay.....but the keyboard repeats (a bit like local
echo). If I press a key, I get two of the same character on the screen. One
appears when the key is pressed, and the other when it is released.
Any ideas ?
Rgds
Simon
-----Original Message-----
From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk]
Sent: 11 October 2001 00:25
To: classiccmp(a)classiccmp.org
Subject: Re: Research Machines Information
Hi,
I am looking for any information or resources relating to the UK based
Research Machines 380Z and 480Z products. These were Z80 based micros,
mainly used in UK schools during the mid-eighties.
I have both machines, and documentation on them. Including schematics for
the 380Z (CPU, memory, text video, hi-res video, floppy controller) and
the 480Z (machine only, but including the option board).
I have a 480Z in my collection, but it isn't 100% operational and I really
need service information to enable me to track the faulty
component.....Can
I don't have the service manual, but I do have the hardware manual. It
includes schematics. Alas my manual was mis-assembled by RML, so some
pages are missing and others repeated, but the scheamtics _are_ all there
and readable.
What is the fault?
-tony
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