Clay Moncure … no pwer is typically a sign of a bad power supply. Your particular model is an all in one power supply/ main board combo.
1) on the bottom of your tv, there will be a vizio logo that can be lit up to indicate standby, or a small dot led, or a infrared sensor box that will light up showing standby voltage. check for this sign of life first. if there is no signs of life (standby light indicator) , move to step 2.
If there is an indicator light, turn off all the lights to make a dark room. Take a flashlight and put it close to the screen at an angle and press the menu button on the onboard controls and look for any sign of a picture. If there is a picture, it would be safe to say that one or more of your leds are burnt out. will want to replace.
2) the fuse can sometimes blow on the board under different circumstances, check this for continuity. The fuse will be located right near where the ac wall plugs into the circuit board. (will need a multimeter for this step and any other step hereafter) If there is continuity, move to step 3.
if there isnt continuity, replace fuse. (When a fuse blows, typically is caused by an underlying issue elsewhere in the circuitry. Will know if this is the case by the fuse blowing again after power up)
3) youll want to start testing voltages on the board. (There is typically a legend of voltages listed on the board itself) youll want to upload a good, clear, as close up as you can picture that shows the entire board in the frame so we can see what you do.
try these and report back with questions and or updates with what you tried and the results.
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