Date   : Sat, 27 Oct 2007 23:18:00 +0100
From   : ats@... (Adam Sampson)
Subject: Teletext adaptor ROM?

Pete Turnbull <pete@...> writes:

> If it has no 8271 but S9 is open, that might account for the failure to 
> work.  S9 enables the NMI from the disc controller; without it, and no 
> controller, it will be getting a continuous non-maskable interrupt.

Yep, S9 is open and the behaviour seems plausible; I've stuck a note
on it and will try making S9 when I find a working power supply for
the machine.

Thanks very much,

-- 
Adam Sampson <ats@...      >                         <http://offog.org/>