Hi Henrik!
Not a problem, at least you are not working with the new digital format of video signals! There are just a bunch of settings that are possible and why certain choices were made make absolutely no sense to me. For example, unless you have some type of noise problems, low impedance is rarely used. In the mode register there is an option to use the BAR pin and a CSYNC pin which suggests to me you can input your incoming video signal and use it as a reference for the sync pulses. The M7 bit appears to output the video in signal which to me would say it ignores any text insertion i.e. bypasses the function of the chip. Since I am also a ham radio operator (WB6NSN) the guy who wrote the program is also a ham (F6CSX) so I will try his e-mail address list on the international ham radio listing. Hopefully he knows English. I certainly do appreciate more than I can express my sincerest thanks for all your help. Just for informational purposes only, in the first picture, the three what look like bars is called color burst as is a reference signal to make sure the colors are correct. Just before the bars are the horizontal sync pulses which go down, across, and up much like a 3 sided rectangle. Below the sync pulses should only be the vertical sync pulses and it is showing the text video which should be above the horizontal sync pulse level. No idea why the video is looking like this or how it went negative. I am not giving up yet! Best, Ed