TV works for 20 minutes. Then the screen goes black but the sound stays on. It comes back normal after 90 minutes (not seconds). If I turn off the TV and then back on again before about 90mins, it will flash the LG logo briefly then will be black again. Unplugging the TV and plugging it back in makes no difference.
I do not understand where this timeout of 90 minutes could possibly be coming from. Any ideas. Thank you
I do not understand where this timeout of 90 minutes could possibly be coming from. Any ideas. Thank you
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