Volume go down automatic - Emerson LC320EMXF 32 in. LCD TV

understand your instructions on removing/replacing the bad/failed switches with good switches; why cannot I find a higher quality switch? What Ohm level should I want when testing used boards for switches? Also, what source of boards for these switches do you use? understand your instructions on removing/replacing the bad/failed switches with good switches; why cannot I find a higher quality switch? What Ohm level should I want when testing used boards for switches? Also, what source of boards for these switches do you use?

All sets with exterior controls, volume, on/off you name it behind each plastic button is a tiny switch---a push switch that when released stops. Bad ones develop not from age but poor quality,,,,that is a momentary switch, as long as held it should function and when released stop. Be thankful it is not the sound UP as I have seen that, Menu, you name it. Now to the proof and the solution, Someone has to gain access to that switch under that plastic button and remove it from the small circuit board it is soldered into---2 to four solder connections and remove the switch. A ten year old with a soldering iron can do it. With it removed power set back and see, if problem gone you have a few choices (really no choice if it was me) order and replace the entire board with all the buttons affected or DO NOT PUT THE BAD SWITCH BACK AND just use the set with the remote. For the technical minded first the reason a remote will not stop this is buttons on the set have priority over the remote functions and YES you can test the bad switch and find it that way---I have seen ones not being pressed that read as low as 3 thousand ohms or less and that is bad=====there should be no reading across the two pins that are for that switch itself. Let me know if you have questions, PS none of them sell the individual parts you have to buy the same poor quality board with another set of switches on it. All sets with exterior controls, volume, on/off you name it behind each plastic button is a tiny switch---a push switch that when released stops. Bad ones develop not from age but poor quality,,,,that is a momentary switch, as long as held it should function and when released stop. Be thankful it is not the sound UP as I have seen that, Menu, you name it. Now to the proof and the solution, Someone has to gain access to that switch under that plastic button and remove it from the small circuit board it is soldered into---2 to four solder connections and remove the switch. A ten year old with a soldering iron can do it. With it removed power set back and see, if problem gone you have a few choices (really no choice if it was me) order and replace the entire board with all the buttons affected or DO NOT PUT THE BAD SWITCH BACK AND just use the set with the remote. For the technical minded first the reason a remote will not stop this is buttons on the set have priority over the remote functions and YES you can test the bad switch and find it that way---I have seen ones not being pressed that read as low as 3 thousand ohms or less and that is bad=====there should be no reading across the two pins that are for that switch itself. Let me know if you have questions, PS none of them sell the individual parts you have to buy the same poor quality board with another set of switches on it.