Hi, I'm Nathan.Sorry to hear that you're having trouble with this but I'll do my best to help you.
Can you recheck that model number for me, please? That looks more like a serial.
No you can't check it?That is not a valid model number. A toshiba model would look like 43L420U for example.
Yes I understand that, I'm a tv expert, your question was miscategorized when posted, but I am a tv tech and moved it to the right area after so I could work with you. I can help you with this, but I need a valid model to do give you specifics and part numbers.
Thanks for the update, glad it is working for you.