The VIZIO M3D650SV 100% Working Main Board 3665-0042-0150 is a replacement part specifically designed for the VIZIO M3D650SV model. As a key component in the TV, this main board ensures that the TV functions correctly and efficiently. With the trusted VIZIO brand behind it, you can be confident in the quality and compatibility of this main board for your TV. Removed from a FULLY functional TV! Not a cracked screen!