Question about Zenith B27A11Z 27" TV

2 Answers

It won't turn on

My t.v. turned on for a minute then it shut off and it won't come back on, and if it needs a fuse, where do I get and put it

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  • Rhonda Ellis Jan 31, 2008

    It makes a clicking sound. It's as if someone is quickly turning it on and off. I also smell something burning; a burnt rubber smell.

  • Rhonda Ellis Feb 01, 2008

    Thanks so much. I'v decided to have a professional to look at it.

    With that burning smell, I don't want to take any chances. I'm gonna take your advice. Thanks.

  • SHARCNET-USA
    SHARCNET-USA May 11, 2010

    Does it still keep turning on and off? If so, its unlikely that it is a blown fuse. A blown fuse would make the set completely dead and it wouldn't come on at all.



    - Jim

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Shorted cap Location # 3213 = .01 / 3KV
Shorted diode # X3204 = NTE 519
Burnt resistor R2925 = 1K 1/2 watt

Flyback usually ok..................................................T.

Posted on Feb 05, 2008

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  • Master
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The smell of something burning is not a good sign. The clicking sound you are hearing could be a relay or breaker kicking in and out as a result of whatever is wrong.

This could be cause by:
1. A problem in the power supply.
2. A problem with the Horizontal Output Stage.
3. The Flyback transformer.

Someone gave me a TV once that had the same problem. I determined that it had a bad flyback transformer. I replaced the transformer and the TV worked about 5 secs before I saw some black smoke come out of the new flyback. I turned it off right away and realized that something else was bad that caused the original flyback to burn up. The same thing was causing the new flyback to go as well. It turned out to be a shorted, 50 cent hi-speed switching diode. Fortunately, because I had turned the set off quickly when the 2nd flyback started to smoke, once I replaced the diode, the TV was fixed.

If you want to get it working again, you'll need to have it serviced.

Good luck,
- Jim

Posted on Feb 01, 2008

  • SHARCNET-USA
    SHARCNET-USA Feb 01, 2008

    You're welcome! Good luck and please come back and let us know how it went.



    - Jim

  • prasad krishna
    prasad krishna Aug 27, 2013

    JIM PLS TELL ME THE DIODE CONFIGURATION

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