Subject: Re: Vaxstation 3W3 to VGA pinouts
To: Luiz Guilherme Regis Emediato <lgemedia@terra.com.br>
From: Jochen Kunz <jkunz@unixag-kl.fh-kl.de>
List: port-vax
Date: 12/01/2006 01:03:08
On Thu, 30 Nov 2006 14:54:46 -0200
Luiz Guilherme Regis Emediato <lgemedia@terra.com.br> wrote:
> ---------------------
> / o1 o2 o3 o4 o5 \=20
> / o6 o7 o8 o9 o10 \
> / o11 o12 o13 o14 o15 \
> ---------------------------
This is wrong. Pin 1 is on the longer side of the connector, below Pin
6. I.e. the upper and lower row of pins is reverted in this diagram.
Have a look at the VGA connector. Usually there are litle numbers aside
the pins.
> My guess is :
> 3w3 Pin-1 inside should go to VGA Pin-1, not 11
> 3w3 Pin-2 inside " to VGA Pin-2, not 12
> 3w3 Pin-3 inside " to VGA Pin-3. not 13
Your guess is right. 3W3 pins 1, 2, 3 and VGA pins 1, 2, 3 are read,
green, blue. VGA pins 6, 7, 8 are (RGB) GND. But you have two bugs in
your wiring diagramm. The wrong VGA connector pinout above and the wrong
Pin to signal assignment. So this is kind of a double inversion: The two
bugs compensate each other.
As "gl" mentioned: Your monitor must support Sync On Green. If it
doesn't you can build a sync separator with a LM1881.
--=20
tsch=FC=DF,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/