14 blinks is a high frame rate error, you can check the LVDS cable connections first, if not work replace the T-con board, if still not work, replace the panel, but it is not worth the money to repair.
There are two different t-con boards for this model, part # 1-857-132-11 cost $270, and 1-857-240-11cost $200. It depends on the serial #, you need to make sure which one is for your TV.
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