Welcome. I am Mike, an experienced field technician. We are now connected together on this convenient website where I am able to help you.
Unfortunately there is not going to be any easy reset/fix. The pattern/number of blinks can give a clue where to start, but the tv back panel needs to come off, complex checks need to be performed with a meter, then parts ordered and installed. If that is something you want to attempt then reply back here and I can assist you further (previous experience needed).
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 46" Tv and could take a few weeks to get all sorted. Unless you can actually do the work yourself, 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 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 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.
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. You can reply even after rating.