I try to connect my TV (32pfl7476/12) with my home cinema set (HTS3154). Since the homeset has no HDMI I try connect over the component cable (Yprpb). The TV keep saying, no video-signal.

However the TV component is working because if I connect my harddiskrecorder/digital receiver (Cisco) via the component I do get a signal.
So the problem must be something with the home cinema set. It was working fine before via the scart plug on my old TV (but the scart does not fit through the wall :-( )

I would be very grateful if anybody has an idea how to solve it.
thanks and merry xmas