Question about Zenith B27A11Z 27" TV

2 Answers

TV wont power on

Tv popped and a smell came from it. Iv'e checked the fuses and they are good . I checked all the components and there is no visible burned componets. the only thig i found was a uncoated disc capacitor that had 1 leg disconnected and I soldered that back on.(number on circuit board is thx3415).I guess it is part of the degausser.

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  • Douglas J Platt Dec 29, 2007

    I have the origional Zenith service manual afforementioned parts listd. Can you be more spacific and tell me what the zenith # are, like (Thx3415).

    Thank You
    Doug Platt

  • Douglas J Platt Dec 29, 2007

    Would not the volume work and the tv at least turn on.

  • Douglas J Platt Dec 29, 2007

    The TV was built in 2001 and the manual does not list thx3415 anywhere except on the circuit board and in the schematic of the circuit board.Is there any ohms readings that I may get from The thx3415 or any voltage reading?

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Device is a thermistor (thermal resistor)
thermistor and a vatistor control the on
time of the degausser Sams Photofacts has the
schematic for the set have to match the suffixTV wont power on - 041eb6a.jpg
Some public Libraries stock photofact schematics you
may be able to go to al local library and get the part number
or the specs as to whether it is ptc or ntc etc to get a match
or online here

Posted on Dec 28, 2007

  • 2 more comments 
  • Eugene Merritt Dec 28, 2007
  • Eugene Merritt Dec 29, 2007

    Schematic should describe thx3415 and identify it
    I said it probably a thermistor based on your
    description thermistor are PTC positive termp comp
    ensation or negative comp NTC what does the
    schematic saly that thx3415 is? does it give a
    NTE or Zenith parts # if it is Zentith part # you
    can cross reference it with NTE part

  • Eugene Merritt Dec 29, 2007

    Check if the Varsitor is open, if it is in series with
    the power supply it will prevent the power supply
    from working,Also the input ac transformer, and
    low voltage transformer promary winding if exist
    What year is that TV

  • Eugene Merritt Dec 29, 2007

    you need a Sams schematic you need the
    part number for the varistor it is usually in
    parallel with the thermistor I think you
    just have a basic wiring diagram or something
    voltage reading are on a schematic you are not
    getting anywhere without the schematic the
    numbers are right on the jpg did you check
    with a library or with Sams you need the
    part# of thermistor and varistor as I told you
    Send me a scan of the power supply section
    of the schematic

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Maybe its the tube or the screen burnt out ?

Posted on Dec 28, 2007

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