The laser lens of the

Question

The laser lens of the DVD Player in my Home Theater system is died. It does not throw any light. Is there any way to change the lens or only change the DVD player unit in the home theater system? My Home theater system is Philips HTS3400. I'm pretty happy with its receiver the only bothering thing is: its DVD Player . It is not in warranty now and service charge is more than its original value. Please suggest how can I change DVD Player unit only from my home theater system.