Date   : Thu, 11 Nov 2010 20:54:51 +0100
From   : rick@... (Rick Murray)
Subject: Repairs to BBC B micro

On 11/11/2010 18:51, Alan Griffin wrote:

> I'm in Paris at the moment visiting my son and family.

God, I hope your weather is better than mine! I'm surprised the ADSL is 
hanging in there - Livebox gave up hours ago but the other router is 
soldiering on...


> As soon as I put any other chip in the ROM sockets, it goes doolally.
> Yes, I can get out of Wordwise by typing *BASIC.

????

So Wordwise *works*? How do you mean doolally? Stuck single-tone with 
flashing cursor? There's obviously a problem in bringing up the machine, 
and I think we can rule out much of the common issues on account of 
MOS+BASIC working.

Right. Wordwise? Does this actually *work*? You say you can *BASIC out 
of it, which implies it does, but then you also say "any other chip 
[...] it goes doolally".
Sorry if I sound harsh, but we NEED to know EXACTLY. Boring clinical 
descriptions please.


> I think it is unlikely to be a fault in the ROM sockets,

The problem is:

   Is it "any other ROM"?

   Is it a specific ROM?

   If it is a specific ROM, is it the DFS?

   If it is the DFS, is it the ROM or the controller chip?

You see where this is headed? ;-)


> I will e-mail again when I get home.

Be good to know you got back in one piece. When I went out to feed the 
cats, my hat did a pretty good impression of my model helicopter. Took 
me several minutes to find it, being hugged tightly by a naked almond 
tree...


Ooh, Twin Peaks is on soon. Later....!


Best wishes,

Rick.

-- 
Rick Murray, eeePC901 & ADSL WiFI'd into it, all ETLAs!
BBC B: DNFS, 2 x 5.25" floppies, EPROM prog, Acorn TTX
E01S FileStore, A3000/A5000/RiscPC/various PCs/blahblah...