17 Apr
2013
17 Apr
'13
5:36 p.m.
I am sure you are correct. I will try to find that schematic of the frame
buffer card, and see what resistors were used on the ECL source end. Now
you have me wanting to put that long cable back on with the correct
termination!
On Wed, Apr 17, 2013 at 4:12 PM, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
--
e-?
I used the same cable that was originally connected to the original CRT
monitor. The cable was at least 6 foot long, straight through DB9 on both
ends. I was getting blurring and ghosting on the VGA monitor using this
That is a classic sign of reflections o nthe cable caused by incorrect or
missing termination.
My guess is that the adpater input is untermianted and that adding
termination resistors would have improved things.
-tony