Question about Toshiba 27D46 27" TV

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White horizontal lines across top 2 " or so on Toshiba 27D46 3yo

Set is in use 10-14 hrs/day. Intensity of lines varies but at least 1 broken line 2 " from top always present on all channels. Is it worth fixing?

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  • Master
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Hi and welcome to FixYa,

Your described condition indicates that the pump capacitor of the vertical section is nearing end of life (leaky). This is relatively an easy and low cost repair.

Good luck and thank you for using FixYa.

Posted on Jan 25, 2009

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  • Master
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Hi

The problem lies in the vertical deflection voltage-doubler circuit. The usual fault is a single capacitor of 100uF/35V that has failed. It is normally connected to a rectifier diode right at the vertical IC. Replacing the capacitor (no more than USD4.00 in price) usually gets it working perfectly again. If you are finicky around technical work, then a reputable local repair shop in your locality should do it quickly for you and charge only labour.

Posted on Jan 25, 2009

  • Rylee Smith
    Rylee Smith Jan 25, 2009

    If thats not the case then there may be a cracked solder joint somewhere on the main circuit board, possibly the flyback transformer's connection to the circuit board, but look elsewhere too, since cracks on the flyback tranformer's connections would probably be more likely to cause a vertical line on a black screen



    Thanks

    Rylee

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