Sharp 36U-F810 36" TV Logo
Elias Velasco Posted on Nov 24, 2006
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No picture or sound

When the power on button is pressed, you can hear a click sound after a few seconds but no picture or sound. The picture tube seems to energized because upon touching the screen there is static. Is this a start up circuit problem?

  • carlosy Aug 26, 2008

    no picture or sound but the power button is functional. There is static when the tv is turned on.

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3 Answers

Bill Heronemus

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  • Posted on Dec 06, 2006
Bill Heronemus
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Joined: Nov 25, 2006
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It sounds more like a shut down circuit problem if you can feel static from the face of the picture tube after it tries to start up. There are several things that can trigger a shut down condition on TV's. For instance, if there is no vertical deflection signal present, the set may shutdown to prevent a permanent line being burnt across the front of the tube. If the power supply wasn't regulating the B+ voltage properly, it would shutdown to prevent damage in the horizontal sweep section. Or if the horizontal deflection circuit was defective and allowing the high voltage to climb too high (say above 33,000 volts) then the sensing circuit would trigger a shutdown event. If any of the above sounds like gibberish to you then you will need to take the set to a professional for repair.

A

Anonymous

Your problem sounds like what our RCA does once in a while. The service tech actually suggested we unplug it for a while and plug it back in. I thought he was crazy myself, but it worked with our TV. Henlopen sounds as if he knows a lot more about it though.

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A

Anonymous

That sounds just like what my sanyo is doing when i try to turn in on it clicks and tries to come on then it goes out.

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