Yes ECL is normally Negative but i don't know if the ECL used name is really ECL in
ATARI.
The pinout used +ECL and -ECL (differential)
Is it refered to GND ?
+ECL and -ECL is the same signal in oposit?
May be i need an impedance of 50 ohms between +/- ECL.
I don't find the Datasheet of the DP8516
In this document we have the solution.
I see the signal of pin 4 (refered to ground) and i see a square wave but -10 mv
(my chip is out ? ).I need see the other
ECL signal.
Many questions...
This week i've more time to play with my
scope.
I don't have many time to play with my ATARI, but sure it's possible.
