Dragon 64 fixing...

From: Geoffrey Thomas <geoffreythomas_at_onetel.net.uk>
Date: Mon Jul 19 16:46:29 2004

Sorry , now I'm getting confused . I was thinking of the 64k ramboard which
had a composite video o/p IIRC. Ignore my other post therefore.
You will need that lm1889.The text you should see will be a Dragondata
copyright line with something like 16 basic assembler-copyright Microshaft -
in top LH corner. The Dragon suffers from terrible dot-crawl interference
and most people used to stick a 0.1uF cap across the colour s/c crystal to
kill the colour - unless they were playing games.
Geoff.

----- Original Message -----
From: "Jules Richardson" <julesrichardsonuk_at_yahoo.co.uk>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk_at_classiccmp.org>
Sent: Monday, July 19, 2004 8:07 PM
Subject: Re: Dragon 64 fixing...
> Now, the only 18 pin IC on the '32 is an LM1889, which apparently is
> some sort of TV modulator IC. If that's what's missing on this D64 it
> might explain my dodgy video output :-) (although without it I'm pretty
> surprised I'm seeing anything remotely stable on the display; possibly
> the machine has some other fault too)
>
> If someone can confirm that my missing chip *is* an LM1889 then I can
> desolder the one from the '32 and try it in the '64...
>
> cheers
>
> Jules
>
>
>
>
Received on Mon Jul 19 2004 - 16:46:29 BST