Quote:
Originally Posted by peter_scott
I don't have an 819 line set but looking back I see that I used a different modeline to you not as high resolution but on VHF 405 my Sony 9-90 couldn't deal with higher bandwidth signals
Peter
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Hi Peter, That is interesting that the 9-90UB can display the 819 signals in the way you show. Well the H frequency of 819 is roughly twice that of the 405 signal so I guess it syncs on every second H-pulse...
I have also thought about using some additional logic to get more compliant V pulses, but my TVs so far are quite happy with the current offering of XORed pulse trains. The French V-sync is basically very simple on odd fields it's just a single 20µs pulse starting from where the H-sync would've started. In the even field the 20µs V-sync starts halfway through the line and ends just before the next H-Sync. Since the TVs are happy I will leave things as they are for now, however.