My son turned on the power lock and I don't know how to turn it off.
Hold volume up and menu buttons at same time for 10 seconds - under left edge of tv
I have bought Samsung TV LN46A500 14 months, use it less than 50 hours totally. No sounds, I hold vol botton, finally, sounds comes out but immediately dropped to 0 by itself. Then I found I could not turn power off either by remote or by pushing front power button on TV. I unplug it, then plug again, nothing change. Any suggestion? help wanted.
Thanks a lot
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