Posted By
MMS
on 2023-08-05
06:34:23
 |  Re: Luma / Chroma crosstalk fix
@TLC Thank you for all the detials and the improvement solution.
You just explained now, that due to the previous activities in the C16, the Chroma and Luma cannot be clean enough on the Video Out connector, as they were already mixed together previously. Comb filter cannot do a perfect job, I agree.
But the TED chip produces these signals separately from each other.
Is there no way to lead these signals to a small circiut and after that lead them DIRECTLY to the Video Out connector (eg. with alligator clips)? I know these TED signals, and especially the open drain signals cannot be used like this (also: would be an additional ESD risk to our TED chip), but with the help of some protective components, and with a piggypack circuit, lead directly use these TED signals (eg aligator clips )after lifting these legs from the PCB (I mean the video our t connectors)?
These should be crystal clear without any disturbance and interference.
BTW this circuit can be switched to switch between the Commodore 1V PtP level (needed by the Commodore monitors to provide the right picture) and between the SVideo standard (0.7V PtoP signal)
Hopefully you understand my question...
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