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I found a reference to Fred Kono’s email of “fred at geemail” so I’m trying that now.
I THINK I was able to get ahold of Bruce Abbott but it’s been a while. I think he told me that this was not his baby. I believe I became otherwise occupied after that but I’d love to have a solution for this.
Not for me.
Yes, messing with those settings did not work.
There must be a way to get this to sync with the OSSC. What else can we try? Can the firmware be altered to accomodate this sync signal?
I’ll give that a shot. Thanks for the info!
Finally got back to this. Is this helpful?
Intellivision RGB Mod Sync Output:
NTSC Test Signal Generator Output:
Yes, that is what I posted earlier images from, the “S” output. Here are two more images taken with my new scope from the “S” output (still no load):
I am using the board referenced in the article at:
My board is this one:
I am using the “R”, “G”, and “B” lines of the outputs (for RGB, of course) as well as the second “G” (ground) and the “S” line which is the line showing the sync pulse I posted earlier. I have tried using the “V” output as sync but nothing will work then. Also, I have never been able to find any relevant signal being produced from the “V” output. I initially assumed this was composite video out and attempted to use that output for sync to my xRGBmini (pin 3 of the xRGB input port) but it did not work. The “S” line produces an excellent image. Perhaps I am doing something fundamentally wrong. I do not know how to get the signal you are asking me to take an image of. From where should I take the reading? I do not know where to get “composite sync” from the board I have.
Below is a picture of my RGB modded Intellivision’s sync pulse on my ancient oscilloscope.
I set the scope so that the vertical was .5v per CM (between each line) and 0 volts was at the bottom
Here is a picture of the calibration on the scope:
Then I set the time (horizontal) to 5 uS while looking at sync signal:
I am not an expert on video so please let me know what else it would make sense to look at.
I have this same issue. My OSSC will not sync to my RGB modded Intellivision (AV1) but my Intellivision works fine on my xRGB-mini. I have upgraded to 0.79a. How would I know what to set the many menu Sync options to for the Intellivision? Any ideas?