Question about SNK Magnavox 32MD357B_37 32 in. LCD HDTV/DVD Combo

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Magnavox 32mf369b/f7 sound occasionally decreases by itself, as if someone pressed the button

Sometimes it works OK, then the sound will start to decrease to zero. The sound bar pops up on the screen as if someone were pressing the volume down button.

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  • oki_inu
    oki_inu Nov 30, 2012

    I noticed it also acts as if the down volume button is pressed when in the menu. I ordered the "Function, Ir, Junction Circuit Board Assembly" - the board with the buttons, since that is where that signal originates. It seems the most logical place to start because the button feels fine , just like the others, so it is not jammed. Besides it only cost $12 shipped . I will post if it works after I receive it and install it.

  • oki_inu
    oki_inu Dec 04, 2012

    Got the part today, it took about 15 minutes to replace, very easy. The board comes as 1 large piece and is designed to break into 3 smaller pieces to install. I've been running the TV since with no problems, let it run about 5 hours straight, then on and off a few times since. The back of the TV comes off very easy if all the screws (and the stand) are out. There are 2 screws on each board plus one plug to the main board. I bought it at Partstore.com, used Philips instead of Magnovox to find the board. 12 bucks and I'm happy. :)





  • oki_inu
    oki_inu Dec 05, 2012

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The volume button must be smashed in,dirty,or defective...I would try pressing the volume- several times repeatedly..maybe try cleaning it with a can of air.

Posted on Jan 05, 2013

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SOURCE: Magnavox 42 LCD 42mf438b/f7 turns on/off by itself

I have exactly the same problem with a Magnavox LCD 42", very similar model 42MF437B/37. I don't have a solution. If you unplug the TV and plug it back it starts working, sometimes for hours, sometimes for less than 5 minutes, before it turns off again. Does anyone have any real solution?

Posted on Aug 01, 2009

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