i have a techwood tv model42832 hd digital when i swich it on i get sound but no picture for about 20 to 60 min can you say if apart inside needs to be replaced if so what part thank you very much
In some not so common cases the inverters can fail and short in a way that would prevent the TV from coming up as the power supply board would detect the shortage and turn itself off. If you doubt this is the case the simplest way to verify it is to disconnect the backlight inverter boards supply from the power, which would eliminate the shortage. If the TV comes up and stays on (without backlight, of course) then this is likely the problem. change inverter board.
flyatyou66
July 2014
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