S-Video output from Amiga with CXA1145M

[kipper2k]

Hi all,

I have a A600 here that i am trying to fix ( RGB output is fine, composite gives "no signal") so i was browsing to try to find some help about this problem. btw, all suggestions welcome. I did change all the capacitors and nothing change. the RGB output gives a really nice stable picture.

I read the datasheet for the Sony CXA1145M video encoder chip and it looks like all video generation of the Amiga is done within the chip itself with an external sync from Agnus. So i am thinking it is probably the chip that is bad.

Anyway back to the subject... while i was trolling i came across this mod that people have done to their Genesis to allow S-Video using an addon circuit that connects to the chroma and luma of the CXA1145M.

Here surely is a nice little project to try on the Amiga that looks cheap to make (you can buy these chips btw for about $12)...

here is the links

http://www.gamesx.com/wiki/doku.php?..._1_s-video_mod

http://www.digitpress.com/forum/show....php?p=1285161


HERE IS A NICE TUT ON HOW TO ACTUALLY BUILD THE CIRCUIT...

http://www-unix.ecs.umass.edu/~dhowl.../#buildingamps


heres the datasheet for the Sony CXA1145M video encoder

http://www.alldatasheet.com/datashee.../CXA1145M.html
or here..

http://www.kipper2k.com/amiga/cxa1145m.pdf

anyone willing to give it a shot

[DJBase]

Already done long time ago...at least as internal version for Amiga 600/1200/CDTV... http://www.amigaworld.de/hardware/s-video-adapter/

[kipper2k]

nice,

do you know whether these adapters are still being sold (my German sux) ?

[DJBase]

Yes, they are still available as I am the guy who made these. Price is 10 Euro.

[kipper2k]

Hi thanks for the info. pm sent )