Thank you for posting your question on Just Answer! I will be happy to help you with this problem. Can you please give us some more information so I can better answer your questions.
-I think you gave us the chassis code...do you have the model number for the television? (this can be found on the back of the unit)
-How old is the unit?
Please give me this information and I will be happy to assist you further.
Encompassparts.com is saying that BN96-12648A is the cross for that panel, but it runs about $250 with a $240 core fee.
The only one I know of is PN42C450B1dxza
I wish I had more for you.
Have a good one.