This is a tested rebuilt Vizio Main Board. We are actual techs. You may ask questions before purchasing. Also compatible with serial LTM7UCAR. Note, 9040x and 9020x is interchangeable, meaning they will work in each other tv. Guaranteed to fix issue like tv led front light turns on but fades out and no picture. Also fixes tv with white light flashing 15-16 times and no function.