On Tue, Jan 24, 2023 at 6:35 PM Adrian Godwin <[email protected]> wrote: > > On Tue, Jan 24, 2023 at 5:09 PM Tony Duell via cctalk <[email protected]> > 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.
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. > > 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
