Question about Zenith C32A26 32" TV

1 Answer

Vertical hold problem

Vertical hold unstable until warm, then sporatic behavior. picture flickers because of vertical hold problem.
when tv is first turned on, there is horizantal black areas above and below the picture.
help...
i'm thinking a electrolitic capacitor in the vertical section.
thanks,
mike

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1 Answer

Maybe sync separator transistor is faulty

Posted on Jan 08, 2008

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Posted on Jan 02, 2017

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Vertical jumping may have a vertical hold issue, horizontal may have a horizontal hold issue. Most older tv sets will have some knobs or adjustable screws for vertical and horizontal hold. Turn your set on and check for these knobs on the back of your set and adjust until your picture is in as well as you can get it

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I have the same TV built in 99. My problem is similar but the vertical hold gives out when the tv warms up about 5 minutes. I will attempt to locate the vertical hold circuit and replace any parts I suspects may be the problem. I suspect a cap is leaking or transitor around IC700 is degrading when warm.

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The service tech will determine the board with the fault, and replace the board.

Jerry G.


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