HiCustomer Thank you for asking your question on JustAnswer. The other Experts and I are working on your answer. By the way, it would help us to know:
-Could you explain your situation a little more?
What is the model number of the TV? The model number will be displayed on a tag on the back of the TV near where the power cord is attached.How long have you owned the TV?What have you tried to correct the problem?Thank you again for trusting us with your problem.
Please reply as soon as possible so that we can finish answering your question.
From the information you have provided I suspect the optical block is causing the problem. I will suggest that you call Sony 1-800-222-7669 and complain about the problem. A persistent customer can often get Sony to pay to have the light engine replaced. Information on the light engine is included below.