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can 7842 detect NTSC black&white s-video?

Question asked by jps3 on Oct 3, 2013
Latest reply on Oct 4, 2013 by GuenterL

if my test generator(Extron) is outputting NTSC(480i) with a test pattern other than color bars(black & white), I never get burst lock or Y/C bit set to indicate s-video. Since there is no C(chroma), I dont think its possible to distinquish this from composite video.

 

Is there any way to accurately detect this?

 

thanks

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