Forum Post: The "shadow" video problem of TVP7002.

Hello,TIer.

We using TVP7002 and DM8168 together to capture VGA video.

but now,we foung that the captured video has a shadow in some position.

Just like the picture below:

we can see the shadow of a black bar inside the red circule.

What may cause the problem?

I have tried modify the phase register of TVP7002.but no effect.

The RC delay circuit have beed added for Vsync of TVP7002.

Thanks for any reply.