Question about Samsung TXG2746 27" TV

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Vertical collapse L301 is burned in half. What could have destroyed it, and what is it? (the markings are gone). Thanks

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  • brewtoo Sep 03, 2007

    Yes, you are correct. I have an open resistor, blown inductor coil and two shorted zener diodes. I'll also replace the IC just in case. Thanks

  • brewtoo Nov 05, 2007

    OK, I have replaced these parts just to have the set work fine. For about a month. Then the same parts were blown again. Replaced them again and got about three weeks service. What could be taking out the vertical circuit? Thanks

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I think L301 is an inductor coil supplying B+ voltage to the vertical output IC, also a diode and resistor are associated with this circuit. Most likely the vertical IC has shorted causing L301 to open up. The diode could also be shorted. Stargazer

Posted on Sep 02, 2007

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have a Mitsubishi TV 1993. Model CS-35301. The problem is that there is a white line that is running through a blank screen. The sound is fine just no picture. Have you heard of "Vertical Collapse?" I would love to save the TV. Hi nothing to worry just minimise brightness to avoid screen burn. "Vertical Collapse?" means one bright hor.line in the middle of screen. this problem can be solved 1 check vertical yoke connector or wire loose 2 check supply to vertical section which normally comes from EHT transformer check components in vertical section or print loose regards thanks

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