Sylvania SRT4127P TV Logo
Terri Fryberger Posted on Oct 18, 2006
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Sylvania 27" TV

Just recently my Sylvania 27" tv, when turned on, only shows a thin line on the TV screen.

  • Terri Fryberger Oct 18, 2006

    Thank you :) how pricey would this be to fix? Or are we better off buying a new TV? Our warranty and MRA expired about a year ago.

  • johnandjay Mar 16, 2008

    Turned on 27"Sayno and a 3/8" vertical line is all that appeared . Sound was fine. Tapped the side of the set and the picture came on full screen for several minutes then reverted back to just the thin line and has remained that way.

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6 Answers

A

Anonymous

Replace the yoke return cap. Its a polyester cap. probably 0.33uf and blue. trace back from the yoke connector plug pins. Other than that, look for bad solder on the yoke plug.

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  • Expert 236 Answers
  • Posted on Jan 12, 2007
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Your vertical output IC may be bad or have a loose solder joint.

A

Anonymous

Vertical out ic bad. follow power line back to horz. sect or ps. maybe a burned resistor that went also.

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  • Contributor 68 Answers
  • Posted on Oct 19, 2006
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A vetical timebase failure like this is not bad and should not take a Serviceman long to fix if he has the all important service sheet, or circuit diagram and an oscilloscope. Line/horizontal timebase failure is much more serious, as this is the primary source of power and would cost more.

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  • Posted on Oct 18, 2006
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The set is having a problem in the vertical deflection circuitry,the one in charge of opening the picture up and down.Sometimes the output IC developes loose conections and sometimes the IC just goes bad,if you tap the set on the side lightly and it reacts it might only be a loose conection. If you are familiar with tv service you have a place to start but if you are not too familiar be safe and call for assistance from a servicer,it should not be expensive if you take it to the shop.

  • Anonymous Oct 18, 2006

    Your rating response is also important.

  • Anonymous Oct 18, 2006

    If the quality of the picture was good when it failed it is worth the repair.

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  • Master 3,130 Answers
  • Posted on Oct 18, 2006
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This problem sounds like the vertical output circuit is bad. it could be a vertical output IC, a bad resistor in the sweep supply, a bad capacitor, or a bad solder connections. Sorry to say this is a solid state set, so if you know how to solder and know how to service solid state devices, you should have No problem finfing the bad part. if you have no experience, please be safe and call in a trainede tech to assist you. Good Luck PS please dont forget to rate this thread>

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