Vizio D65x-G4 Volume changes on its own

[karthur]

Thanks guys for those suggestions.

I did check the resistance across the buttons when they were pressed/not pressed. They all seemed to be working fine. When pressed they were like 0.2 ohms and 1mega ohms when not pressed. I see what Lotas posted above in post #16. I can look at those again.

The "AutoVolume" is set to OFF in the settings.

I have attached a pic of the board below. Yes, it appears to be similar to the one Lotas posted in post #9 above.

I have tried to do an update, but it says I am up-to-date. I watched the YT video on the key sequence for the factory reset (vol down+Input). Will give that a shot tomorrow.

[karthur]

I replaced the main board with one from ShopJimmy. Same problem. I have the key controller board coming. Should be here this week.

[EazyBone]

Just disconnect the key controller board and test it.

[jlode675]

[QUOTE=karthur;n3660183]I replaced the main board with one from ShopJimmy. Same problem. I have the key controller board coming. Should be here this week

[karthur]

Just disconnect the key controller board and test it.

I did disconnect the key controller and tested the buttons. Are you saying to disconnect the board and try to turn the TV on? I don't see how that would be possible with the board disconnected.

[EazyBone]

Oh right, Vizio goes to power buttons then goes to remote light. Other tvs aren't that way whoops.

[nomoresonys]

Any update?

[karthur]

I replaced the key controller board and it fixed the issue. However, after I replaced the KC board the TV would not connect to my wi-fi. I did a factory reset from the Main menu, then everything started working correctly.
I never did a factory reset using the original boards. I plan on putting both original boards back in and do a factory reset and just see if it still has the issue.

I am thinking it was the key controller board really.

Thanks for the help!

[nomoresonys]

Yep, I think it was too, thanks for update.