Amiga 1200 without composite

Composite of machine not working.

First I though it was the CXA1145 video encoder, because all signal where present, but no composite output. The voltage of the CHROMA_OUT was very low. So the question.. what is causing this?

I replaced all small components (resistors & capacitors) between CHROMA_OUT (CXA1145 pin 15) and CHROMA_IN (CXA1145 pin 17) piece by piece.

Problem: C222 0.1uF capacitor..