[Coco] composite / s-video to hdmi

Frank Swygert farna at att.net
Sun Dec 16 20:06:56 EST 2012


Date: Sun, 16 Dec 2012 11:42:39 -0500
From: Luis Antoniosi<retrocanada76 at gmail.com>

I have this one:

http://www.monoprice.com/products/product.asp?c_id=101&cp_id=10114&cs_id=1011407&p_id=4722&seq=1&format=2

and is useless for coco. It just doesn't like either the composite or
the hawk's s-video converter signal. The composite shows as black and
green striped screen and the s-video has too much bright blooming the
image so bad. Also, the artifact modes doesn't work either in s-video.
it blinks between gray/artifact colors. so annoying.

By the other hand it does accept wonderfully the commodore 64
composite and s-video signals. Even the european PAL it converts very
well to VGA.

=========================================
Makes me think that the signal from the CoCo needs boosting, as more or less Gene suggests in his post on the subject.

I like his idea of a drop-in FPGA GIME though. I don't see a problem if it had to have an external power source, as long as it can be kept simple like a wall-wart with a pigtail jack run out the back. You'd need to replace the GIME socket or have a board that will plug into the original socket though. I think those would be the major hurdle.




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