We have the same model and I been looking as well online and other forums. The only thing I have found is in the cabinets above the TV, there are two rubber plugs that when pulled out give you access to two top bolts on the TV Stand. I stopped short of loosing these as can see that there are nuts on the underside of the mounts, and while I know I can loosen them And remove the TV, I am not sure if the nuts are stationary and will allow The bolts to be placed back.... So I am still looking!!
Also here is the wiring diagram for the TV as well