Hy, I have a problem with my audio video philipps system.

One week ago, I ve bought a new TV 42 PFL3207H.

I've bought the homecinema HTS554O in the last january. I've bought too, the wireless system for the two rear sound.

One week ago, I ve bought a new TV 42 PFL3207H.
I plugged all the wires
I have a long delay between the sound from the tv and the sound from teh home cinema, and I have a loss of sound signal. Using a wireless system, I have almost no sound form my rear sound while I have a correct sound from myfront sound
Does somoene know to solve this problem. I cannot use optical signal. Does someone can help me????