This listing is for a replacement for the memory IC containing the Vizio XVT423SV firmware.
Vizio XVT423SV main board 3642-0962-0150 / 3642-0962-0395 repair service for dead , blinking endlessly, no HDMI, no sound or otherwise failing to start TV
Repair service for main board 3642-0962-0150 / 3642-0962-0395 used in Vizio XVT423SV smart LED TV.
Vizio XVT473SV main board 3647-0312-0150 / 3647-0312-0395 - serviced, tested, $60 credit for old dud
A functional Vizio XVT473SV LED TV main board that can fix totally dead or failing to start TV. You can then return the old dud and receive refund to lower your total cost.
The repair kit contains replacement for the memory IC that contains the Vizio XVT473SV firmware.