Question about Samsung TXM3297HF 32" TV

3 Answers

Whe turning on the TV, there is an audio tone and the screen lights up for like two to three seconds, then it powers down, turns off, by itself. The flyback transformer was most recently changed.

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  • Dick Stubblebine Nov 18, 2009

    As is stated in the heading of my problem, this is a 32 inch 720P, HDTV from Samsung (it has a CRT). It is the model as I stated above, a TXM3297HFX. I can not see in my problem description your second concerns?

  • Dick Stubblebine Nov 22, 2009

    Most recently changed out the flyback transformer. Prior to accomplishing that the TV would not power up. It now illuminates the CRT (picture tube) for like 2 to 3 seconds, and the speakers plays an audio sound similar to what is heard on a phone when you dial a wrong number. Then all goes dead. What might my problems be?

  • Dick Stubblebine Nov 23, 2009

    Wow! I'm going to try this in the morning. I replaced the transistor first, prior to replacing the transformer, and I had nothing. Then I replaced the fly back transformer, and the results were what I posted. Thanks for your latest info.

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  • Master
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Hello:

If you had the flyback replaced recently, the Horizontal output transistor should of been replaced with it also, it works in conjunction with the FB. It may be brakeing down when its under a load. In my years of repairing Televisions If I have to replace the flyback then I also replace the HOT along with, you may even have a bad flyback again, check the pins on the flyback for open or cold solder joints also. Try this also. With power off hit the mute key on the remote, push number keys 182 and then hit power button. This will put the unit in service mode, if after going into service mode the unit turns itself off then you may also have a main power supply problem..

Posted on Nov 23, 2009

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  • Samsung Master
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The audio tone comes from the transformer. If you can easily hear it it's because the power consumption is high - what causes that i can't know without testing the tv.  It shuts down automatically (designed to do that) to prevent further damage.

Posted on Nov 19, 2009

  • Azrael SRL Nov 21, 2009

    The high level of the sound is caused by the vibration of the transformer, it's overcharged - forced to handle a higher than rated power.

    If the security systems fail then the transformer will overheat rapidly and short - which can easily start a fire.

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  • Master
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Hi,
The behavior implies that either a connection is effected by the heat of running or a component is failing under those conditions. It would be helpful to know the following:
1) Make and model of the unit in question here.
2) A description of what you mean by "starts to break up".
The shutdown is occurring because of internal protection circuits that kick in when a problem is detected. This is to prevent further damage. We should be able to provide a more detailed explanation of the problem and possible solutions once the info is posted.
Thanks

Posted on Nov 18, 2009

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