The ADV7511 pixel bus is an input bus. It sounds like you have a stuck-at high bit on the board. The 7511 just converts parallel in to serial out. Scope the high luma bit and see if it ever goes low.
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The ADV7511 pixel bus is an input bus. It sounds like you have a stuck-at high bit on the board. The 7511 just converts parallel in to serial out. Scope the high luma bit and see if it ever goes low.