kingm316
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May 2, 2010, 5:10 PM
Post #1 of 4
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magnavox now dead
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i have a magnavox 20ms233s that about six months ago the channel up button started messing up, when you pressed it the tv would power off. then about four months ago it just started changing the channel all by itself, and shutting off by itself. when it is now plugged in it will go up two channels and turn off then turn on go up another two channels and shut off and repeats forever until it is unplugged. i removed the back last night and looked all over the board and found on the channel up button some corrosion on the leads. i checked all five buttons with my meter and all but the channel up are open without the button pushed and show continuity with the button pushed. the channel up showed the same resistance with or without the button pushed so i removed the switch and tested the set with the back off and the set worked perfectly. so then i unplugged it, slid the board back in and reinstalled the back. hooked up the cable box and plugged it in and it did not work. so then i unplugged the cable box and tried again and still nothing. i removed the back thinking it might work again with the back off but no it didn't. when i push the power button with only the ac plugged in there is no click, but i do hear a little buzzing or something like that out of the speaker if it means anything. what would my next check be? thanks for any help
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