This is a great thread, and a lot of really good information, but I have a question for some of the more technically minded people in this thread.
Alright, so. I have a KV-27FS100, and it's been pretty well covered in this thread as far as getting RGB input working (and it does work). However, what should I do if I have separate horizontal and vertical syncs?
I can't find a datasheet on the Jungle IC, but I did find the service manual, and can't seem to figure out where I would inject these separately, so it seems the best option would be to combine them to make a CSync signal.
However, this presents a problem. I am under the impression you can't just twist the wires together and expect to get a good CSync signal (well, I've heard you can in some cases, such as if they are negative). You can XOR them
like this, and you will get a usable signal but the image will still be slightly distorted on the upper edge.
Full disclosure; This is regarding a VGA signal from an old computer that has been soft-modded to output 15khz, and it does work (using a XOR'ed Sync currently).
So, my question is... is there a better method of combining HSync and VSync to create a CSync? I can't seem to find any after market options for doing this, other than a 200-500 dollar Tektronix
VGA SYNC Combiner Cable... Or, is there a place where I can inject HSync and VSync into the board separately?
Thanks in advance for any suggestions!