We are using the ADV7842 to receive YCbCr 4:4:4 data from test video generator. The output of the 7842 is setup as YCbCr 4:2:2. I would expect that if I have AGC_MODE_MAN set to off and I am in HDMI mode and that I insure input range matches the OP_656 range that there should be a gain of 1 and the known color data I am sending from the video generator should be seen at the output. However this is not the case. What other settings may I be missing that would insure that I am just passing the data through?