24 Jan
2023
24 Jan
'23
6:45 p.m.
On Tue, Jan 24, 2023 at 6:35 PM Adrian Godwin <artgodwin(a)gmail.com> wrote:
On Tue, Jan 24, 2023 at 5:09 PM Tony Duell via cctalk <cctalk(a)classiccmp.org>
wrote:
I know it well, but it is unlikely to be the monitor I am looking for here :
It's colour (and the P2000C is clearly a monochrome output).While that
it no real barrier, I doubt Philips would have wasted a colour CRT in
that way
I has a SCART socket so either composite PAL video (if you have the
decoder stuff fitted, a lot do not) or analogue RGB with composite
sync.So not a direct connection to the P2000C's separate syncs
Is it 12"? Something is telling me it's a 14" CRT but I am not gong to
dig mine out to check. The service manual implies it is over 12"
diagonal.
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.
The Phlips service manual for the P2000C includes the schematics of
the SASI interfae on the main PCB. It's simple, mostly TTL I/O ports.
I can't believe the device-side interface is any worse.
And assuming I'm right about the Xebec board I have the command set too.
-tony