6845 CRTC, Microvitec VDU/BBC Micro sync waveforms (was Re: CoCo's *are* real...) - test-drb@ccmp.vtda.org

10 Sep 2002

Sorry about the last message (the one that contained HTML). I've just
reinstalled Win98 and Outlook and forgot that OE5.5 defaulted to HTML format
for mail.

Tony Duell wrote:
...
  But what chipset does this decoder use? Some of them
do contain sync
 generators, as they can be used as general-purpose display devices
 too. The SAA524x series can, for example. The board is from a Ferguson T14T
(Thomson TX91 chassis?) and has two ICs
onboard - a Texas Instruments IC labelled:
EUROTEXT
TELETEXT DECODER
CF70204NW
  59A5V3W
The other one is also TI, labelled:
58D71DT
CF72306
DATA SLICER
Anyone got a Ferguson T14T or Thomson TX91 service manual? I need the part
number of the TTX decoder mentioned in the schematic. I think it originally
used a Philips SAA52xx IC, not sure though.

Thanks.
--
Phil.
philpem(a)dsl.pipex.com
http://www.philpem.dsl.pipex.com/