Question about RCA Televison & Video

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Rca f3750st this television was playing fine but then it started loosing its sound. it has a chip in it that allows it to automatically cut the sound down on the tv if it goes too high. (ex.when it goes to a commercial and the sound goes up.) well the tv was put up for awhile but when it was brought back out it worked just fine for a few days, but then it started having wiggly lines in it. today it all of a sudden started a ringing noise with static inside of it and it also had those wiggly lines in it. the noise sounded almost like a tornado horn it was very loud. i turned the tv off. i then immediately turned it back on . it came on right for about 30 sec. and then the lines came back in with a small ringing but not much then it stopped. it has been working fine for awhile

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  • vernon johnson
    vernon johnson Oct 07, 2009

    i would just like to hear another opinion not that yours do not sound sufficient

  • vernon johnson
    vernon johnson Oct 08, 2009

    very good suggestion

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Sounds like a cap start going bad, or a bad solder join/ground causing feedback. What I would do is to hit the components with freeze it and see the symptom can be reproduced by hitting certain components. I hope that helps.

Posted on Oct 07, 2009

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Hi,

A possible diode or resistor was failing inside the audio module, the unit need to be repaired.


Posted on Oct 07, 2009

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