Question about Zenith B27A11Z 27" TV

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WHEN I TURN THE TV ON IT IMMEDIATELY SHUTS OFF....THEN, I CAN'T TURN IT ON UNLESS I UNPLUG IT FIRST. IT SHUTS OFF IMMEDIATELY AGAIN.....AND SO ON!! I WAS THINKING THAT MAYBE THERE WAS A ''FUSE'' OR SOME TYPE OF SHUT OFF FOR A SHORT CIRCUIT OR SOMETHING LIKE THAT. IT IS AN OLDER MODEL PROBABLY

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This sounds like a serious overload of the power supply circuitry - as the TV tries to start up, it is sensing an overload and therefore shuts itself down to protect itself (and you if it overheated).

Primary causes of such overloads in older TVs is a fault in the power supply circuitry itself, or a fault in the line output circuitry (the bit that generates the high voltages TV's use, and also the bit that scans the picture left to right).
Both types of fault require expertise and test equipment well beyond DIY level, to diagnose and repair.

Suggest you call a repair shop who should give you a free estimate as to likely cost of repair. Then you can decide if it worth it or not.

Posted on Oct 08, 2009

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