[comp.sys.amiga.tech] Monitor question

mp1u+@andrew.cmu.edu (Michael Portuesi) (05/25/88)

I have recently acquired a DEC GiGi terminal and a Barco GD-33 RGB
monitor from a friend of mine who is moving away.  The GiGi is kind
of fun to play with, but what I really want to do is connect the
Barco monitor to my Amiga.

Will it work?  The specifications for the monitor (from the manual)
are:

    525 lines 60 Hz interlaced or non-interlaced

    red:    non-composite 0.7 Vpp +- 6 db positive
    green:  non-composite (EXT. sync) 0.7 Vpp +- 6 db positive
	    composite (INT. sync) 1.0 Vpp +- 6 db positive
    blue:   non-composite 0.7 Vpp +- 6db positive
    sync:   (EXT sync) negative 4 Vpp +- 6db

    EXTERNAL or INTERNAL sync mode selectable (switch).

    frequency response: 15 kHz to 7MHz + 1 db/-3 db gradual roll-off.

    line scanning: horizontal retrace time < 10 uS.
    vertical scanning: vertical retrace time < 900 uS.

    picture tube:  high resolution, precision in-line shadow mask,
    auto-convergent CRT tube with black matrix.  Pitch = 0.31 mm.


This sounds like a nice monitor (0.31 mm dot pitch!)  if I could make
it work.  It uses BNC-type connectors on its inputs, so I would have
to put together a cable.  Does anybody know where I can find cables
and/or parts to build one?  Also, if this monitor will work, does
anybody know if it will accept an analog signal?  The GiGi only
outputs 8 colors, which makes me worry that this may be a TTL RGB
monitor (which would be most distressing).  I know next to nothing
about video monitors, so some advice from a video guru would be most
appreciated.

			    --M


Michael Portuesi / Information Technology Center / Carnegie Mellon University
ARPA/UUCP: mp1u+@andrew.cmu.edu			    BITNET: rainwalker@drycas

"if you ain't ill it'll fix your car"

marki@tahoe.unr.edu (Mark N. Iverson) (05/28/88)

Before I got my 1084, I brought my A2000 to UNR to see if the BRC
monitors on the DEC GIGI terminals would work.  All I had to do
was make a cable for R,G,B and SYNC, connect it to the BRC and flip
a switch on the back (of the BRC) that allowed for external sync.
I'm at home now so I don't know the model# on the monitor, but I'd
be happy to do so... just say the magic word!

It worked fine.  The display was a tad smaller (and more rectangular
I think).

It wasn't stated in the above, but I used the ANALOG R-G-B output of AMI.

If you need details of the cable... just say the magic word!

	...is there an echo in here?

mark iverson
marki@tahoe.unr.edu

marki@tahoe.unr.edu (Mark N. Iverson) (05/28/88)

please substitute Barco for BNC in my previous posting.

mark iverson
DUNCE@where.the.fakauii  <:-)