42" RCA Projection TV - Sound good, but Picture goes out intermittently.
I have a 42" RCA projection TV where the picture goes out intermittently but the sound is fine. When I turn the TV off and back on it'll play fine but there's no telling when the picture will go out again. Also doing the Fred Sandford, hit to the right-hand side of the cabinet brings the picture back as well.
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the lack of sound is likely due to a defective audio output amplifier integrated circuit or IC for short, it needs replacing, the wavy lines through you picture is due to a defective filter capacitor in your power supply circuit, or may be due to the audio amplifier I.C drawing more current from your power supply causing a non clean power to be supplied to the video circuits, have the audio amp replaced first and note if the wavy lines are still present if so it is likely that some filter capacitors need replacing, to obtain sound you might be able to connect a external amplifier like your home stereo using the aux input and the sound output from your TV`s RCA jacks, this works well, let me know if you need further assistance good luck
When the screen goes blank, hit any remote function that will show up on the screen-like volume bar. If the display is missing as well, then you have a tv problem. If the volume display is there when the tv picture is not, you may require a software upgrade.