24 Jan
2023
24 Jan
'23
10:34 a.m.
On Tue, Jan 24, 2023 at 5:09 PM Tony Duell via cctalk <cctalk(a)classiccmp.org>
wrote:
A couple of questions if anyone has experience of this
machine :
1) There is a 5 pin DIN socket for connecting an external video
monitor. The signals seem to be TTL-level separate syncs at European
TV rates (15625Hz horizontal, 50Hz vertical) and separate (not
composite) 4-level analogue video.
I believe Philips sold a 12" monitor to connect there. What was the
model number? Is a service manual availabe?
Has anybody linked other monitors to that socket?
Hi Tony,
I enjoyed the restoration description :)
Maybe the popular CM8333 ? I think it was also badged - perhaps with a
different interface - as the Commodore 1084.
It kind of took over from the BBC Microvitec Cub (15kHz, TTL RGB) as an
early Archimedes colour monitor.
https://blog.roberthargreaves.com/2016/04/16/cm8833-repair
I have a Logica VTS Kennet 2400 from about 1985. It was an MS-DOS machine
when those could exist without being PC-compatible. It also had SASI : the
interface isn't much more than buffer and latch, but formed the basis for
SCSI. We used either a Xebec controller or Adaptec. with ST506 discs. It's
a very simple interface, a subset and predecessor of SCSI I think. I have
extensive manuals for the machine which include the SASI interface and the
command set. I did have a SASI controller on it at one time - it might
still be there.