Question about Standard (CRT) Televisions

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Picture stretched on CRT 32"

My picture on the TV is parallelagramed with the top stretched and I am loosing the top and left hand side of the picture. It has had a dry solder joint problem that I have cured but I am stumped at the picture problem.

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  • Snowcrash
    Snowcrash Apr 28, 2008

    I can tell what is the power supply but I don't understand B+, where it is or what voltage it should be. The dry solder joints were on a choke(coil) near the HT transformer.

  • Snowcrash
    Snowcrash May 06, 2008

    I think the dry solder joints have caused the problem of the picture stretching. I have checked around but nothing else is amiss. At first the TV wouldn't switch on unless you banged it but the picture wasn't stretched. This went on for about 1 month before the picture started stretching. I then found the dry solder joints on a choke near the HT transformer (flyback?) and this cured the switching on problem but the picture stretching stayed. I think the problem is now a dead or dieing component but which one???

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2 Answers

B+ means your secondary supply voltage it supply your horizontal tansistor and in the flayback transformer. it rated 80volts to 120 volts.the choke coil you have is maybe for the horizontal linearity, try to solder it.thats the reason why you picture is being streched out.

Posted on Apr 29, 2008

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The problem is that your flyback and also your power supply circuit. check the B+ of your supply.

Posted on Apr 25, 2008

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