Question about Olevia LT23HVX 23 in. LCD Television

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Olevia 42" LT42HVi has sound but picture had gone blank.

Hi. Does it mean if the power supply is bad, the backlight will not light up? Or would it be the inverter or would it be the main board since it would not change the "source" when clicked. I checked all the boards with no bulging of capacitors.
Thank you.

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You do have sound, but no picture.
I believe the power supply and main board is ok, because you can hear the audio.

Most of the majority of these problems that have no picture is the back light inverter. That's what supplies power to the screen. I would look into that as the source of the problem.

Posted on May 19, 2009

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If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
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