Philips G7000

From: PDP11 Hacker ..... <ard_at_siva.bris.ac.uk>
Date: Wed Aug 13 18:26:35 1997

>> Presumably if it has a UHF output it also has an internal modulator. Can't you
>> just tap off composite video from the input to that?
>
>It does indeed, and on a separate board, too!

Well, finding a composite video point is trivial, therefore.

>
>Someday I must get a decent TV standard monitor - probably the Barco I
>sold to my brother for use as a telly - but I ought to have a composite

Err... You do not use a Barco monitor as a TV. It's far too nice for that. I
happen to have one, you see.

>one as well (Barco is RGB, of course). At present the monitor I have

Not of course. There were Barco's with built-in PAL, SECAM or NTSC decoders
acording to the user manual for mine. (Barco User manual = 1/2 page explaining
the controls and about 40 pages telling you how to set it up, schematics,
waveforms, test points, etc).

>requires Video + Composite Sync - or it can free-run and generate sync
>for a TV camera.
>
>> What chips _other than the 8048_ are in this device? Is the video side
>> custom or does it use one of the many Philips video chipsets? (Philips Prestel
>> terminals tend to be stuffed with their Teletext IC's, for example...)
>
>I can't remember offhand, except that there are quite a lot of them.
>I'll have another look tonight.

Please e-mail me a list when you get a chance and I'll see what I can find out
about them.

>
>There seem to be two large rectangular metal cans - one with its own PCB
>(probably the UHF modulator) and one on the motherbaord (VHF for US?)

Possible VHF for europe. There are 625 line transmissions on Bands 1 and 3
according to some info I have.

>
>Philip.

-tony
Received on Wed Aug 13 1997 - 18:26:35 BST