How to replace an ir sensor on your tv.
Vizio tv ir sensor replacement.
Vizio 3648 0052 0189 ir sensor for e48 d0 748 01c09 0011 ir sensor compatible for vizio d65u d2 vizio smart tv keyboard remote for e500i a0 e550i a0 e550ao e500 ao e502ar e422vl e472vl e552vl m370sr m420sr m420sv m470sv m550sv e701i a3 e650i a2 e500i a0 e470i a0 e551i a2 e601i a3 m470vse m.
We ve had a vizio tv for at least 10 yrs we had the same problems you have been having we also purchased a universal remote control and nothing seemed to work with the codes given we discovered it may be the ir sensor on the tv itself so i opened the back of the tv using a screw driver and the sensor on the right side of the tv was dirty.
First make sure no physical objects are blocking the path between the remote and the ir sensor on the tv.