Welcome. I am Mike, an experienced field technician. We are now connected together on this convenient website where I am able to help you. To get started, I need to know you can see this message and are able to reply to me here...
-Have you tried bringing up the menu using the buttons on the tv itself?
-How long have you had the tv?
** My replies can take up to 5 minutes to appear **** Do NOT start a new question **
Unfortunately there is not going to be any easy reset/fix. All symptoms point to a defective part inside the tv that will require taking the back off and further diagnosis. This will involve use of a meter with live voltages. If that is something you want to attempt then reply back here and I can assist you further.
If you are unable or unwilling to perform any of these procedures then a repair shop should be consulted but I can tell you that diagnosis, parts, and labor will end up costing just about the same as a new 40" Tv and could take a few weeks to get all sorted.
Unless you can DIY, I would strongly suggest you use the money you saved by coming here first toward a replacement tv rather than going for a repair.
I'm very sorry for the bad news.
I do understand that finding out your tv needs expensive repairs is not pleasant but please keep in mind why you came here to use this service.
An in home diagnosis by a local repair shop usually costs $100-$135 up front. Finding out whether your tv can be repaired and how much it may cost from this online chat costs a fraction of that which allows you to choose the smarter option.
Before you go please take a moment to submit at least a 3 star rating at the top of this page so that I get credit for my work.
Hello, just checking back in to see if you still need help, or perhaps you would like to acknowledge that my time and input has been helpful?