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ADV7280 Autodetect

Question asked by JFIX on Sep 9, 2015
Latest reply on Sep 22, 2015 by Rob.Analog

I'm using the ADV7280 configured to auto-detect the input video signal.  When no input signal is present it should output a blue screen.  If I power up my board with NO signal on the video input the output video is scrolling red, blue, and green horizontal bars (I don't think this is a test signal... just noise?) .  With my board still powered up I input a video signal (from a camera).  The ADV7280 locks and a valid picture is displayed.  I then remove my input video signal and the expected blue screen appears.  My question is, why didn't the blue screen appear upon power up?