Date   : Sat, 11 Feb 2006 19:59:53 +0000 (GMT)
From   : Sprow <info@...>
Subject: Re: B+ 64k won't respond to keyboard, Econet fitted

In article <QQA3QjUHTj7DFw9V@...>,
   Mike Tomlinson <mike@...> wrote:
> In article <20060211135447.DE58E2547F2@...>, neil f
> <faz@...> writes
>
> >Shift/Break gives "Searching not found" (i.e. when no extra ROMs or
> >68B45 chip fitted).
>
> The keyboard's working, then. 

[snip]

> I've seen this symptom when a key has been stuck down, but you say
> you've tried another keyboard.

Agreed. If the wire link isn't present on the keyboard to reverse the
SHIFT-BREAK action, then this would suggest the software thinks shift is
jammed on.

However if the keyboard has been swapped for a known good one that would
point back at the motherboard or software on it. Perhaps a corrupt OS EPROM?
The B+ isn't a mask part is it?

A simple service ROM could be written which gets in before the startup
banner and allows you to test the keyboard by calling KEYV.
Sprow.