Vizio E70-E3 will not power up, no LED V.

[R_J]

Re: Vizio E70-E3 will not power up, no LED V.

OK, so if it momentary, I assume that means the only time I will see all four points as connected is when it is pressed down?

Yes.

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The pattern you report does not really point to a bad strip but more likely a controller ic issue
There are 12 mosfets on the board, 1 for each strip.
Did you check your original strips? I suspect they are ok, If one led was bad, the strip would not light not be dim.

[motterpaul]

Re: Vizio E70-E3 will not power up, no LED V.

The Good News, I put in a new mainboard and all the LEDs work and it is a beautiful picture. The bad news, now the remote does not work - also, I cannot pair the TV to my phone app. I have no way to control it.

I get the setup screen on the TV that has the smart app highlighted, but I cannot pair the smart app to the TV. I get the screen on my phone that says "enter the pin shown on the TV" but there is no PIN on the TV. I tried the original PIN (I had it written down) and that also does not work.

I also cannot turn on the TV with the remote. The batteries are good. I did swap out the IR board on the TV in the fix (this could be the problem).

All of the buttons on the TV work fine, and the white standby LED comes on when I power it up with the button on the TV, but there is no remote control or smart app connection working.

[R_J]

Re: Vizio E70-E3 will not power up, no LED V.

It looks like there are a few different main boards depending on the serial number

[motterpaul]

Re: Vizio E70-E3 will not power up, no LED V.

UPDATE: I effed around with my cable TV remote and actually got access to the menu on the TV, and I can watch my cable TV now. I can access the menu, and it says it is connected to the network.

So, now I don't know if it is the remote or the IR on the TV. If it was the IR on the TV, would the cable remote work, or do Vizio remotes connect a different way from other remotes?

[motterpaul]

Re: Vizio E70-E3 will not power up, no LED V.

It looks like there are a few different main boards depending on the serial number

Yes, but the one I got was matched to my model number AND there was a note that said it was proven to work with all E70-E3s.

[motterpaul]

Re: Vizio E70-E3 will not power up, no LED V.

YESSSS!!!!

... it is finally all working. The trick - if you cannot get the remote or a smart access app to work is....

Get a cheap universal remote and access the MENU option. Then make sure then the network is set up. That is all I did, and now even the remote works. I am a 100% happy guy with a brand new TV.

I owe you a world of thanks - is there anything they do around here to award people who really help?