Magnavox turn Off problem

[CraigR]

Magnavox 32MF330B/F7 lcd TV. Plug it in and turns on by itself and everything works with the remote except after you turn it off a few seconds it comes back on. None of the buttons work on the TV at any point. I removed the buttons and the IR sensor with wires but yet it still will turn on by itself. I disconnected the buttons from the IR sensor and just put the sensor back in again and all worked as before including it turning back on after shutting off with remote. Not sure what board to replace? the little green digital main board or the bigger main next to it??

[tech2014]

Re: Magnavox turn Off problem

whatever board has the HDMI and video in/out ports is most likely the main board. I tried opening the pics but after a couple minutes of them not loading I gave up. Sounds like the main board is bad.

[CraigR]

Re: Magnavox turn Off problem

From what I have read there are 2 mains but not sure what one would be bad.

[aaronwt6]

Re: Magnavox turn Off problem

It's going to be the small green board. That's what has the 'brains' on it. The fact that it's powering up at all tells me the power supply and backlight boards are working. These TVs have the same layout and boards as the Sylvania LC320SS8 and Emerson LC320EM1F. Funai parts. Very cheaply made.

[CraigR]

Re: Magnavox turn Off problem

Replaced that board and is working again. Thanks aaronwt6.

[aaronwt6]

Re: Magnavox turn Off problem

Replaced that board and is working again. Thanks aaronwt6.

Good deal. Thanks for the follow up. You luckily got out with the cheapest board. More typically, the power supply or inverter board fails on these. Of course, that results in different symptoms. I've seen enough act just as yours did so I was pretty confident on the digital control board.