Question about Hitachi Projection Televisions

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Picture started out with about a 1 to 2" black streak on each side of the picture. The tv is a 36" pc ready color tv model 36sdxo1s. The black streak on each side of the picture is getting larger.

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  • rndvm Sep 06, 2008

    This is not a projection tv.

  • rndvm Sep 06, 2008

    I repeat this is not a projection tv. Need assistance for this model.

  • rndvm Sep 06, 2008

    this is not a projection type tv.

  • rndvm Sep 06, 2008

    I was asked to post the model number which is 36SDX01S. PC ready color tv

  • rndvm Sep 06, 2008

    This is a 36" Hitachi PC Ready color tv. 36SDX01 is the model number.

  • rndvm Sep 06, 2008

    When the tv is first turned on the picture is very narrow, it eventuallyl widens out with about 3 to 4" on each side. The picture is clear but getting smaller from each side.

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  • Hitachi Master
  • 19,396 Answers

Try unplugging TV for ten minutes first.

Posted on Sep 06, 2008

  • 4 more comments 
  • Ginko
    Ginko Sep 06, 2008

    Try unplugging TV for ten minutes first. Then ensure it is not a setting problem with Image setting at 4:3.

    If the two bands are kind of moving and the picture is getting slimmer all the time , then is a convergence problem, one of the convergence ICs has blown and must be replaced.

    A technician will take apart the back of the TV, test the faulty STK ic on the convergence board inside the TV and replace it.
    After this a convergence setup procedure must be performed.

    If you need to call a repairman you can use the number listed on the owner manual.


  • Ginko
    Ginko Sep 06, 2008

    What kind of TV is then, you posted on projection TVs, is it CRT, plasma, LCD, rear projection or projection/LCD technology.

    On LDP and crt it is probably a convergence IC problems.

    Post the model for more information.


  • Ginko
    Ginko Sep 06, 2008

    if you don't tell me the model we go nowere, 36sdxo1s is not a valid model number, post make and model correctly.

  • Ginko
    Ginko Sep 06, 2008

    Well it is a progressive scan tv, it has convergence board controlled by two STK ICs the same as a CRT and a Projection I think.

    In any case start going to the video settings menu and do a reset check page 33 of user manual here .


  • Ginko
    Ginko Sep 06, 2008

    If you are using the TV connected to a computer, see also PC mode control to set display width at page63

  • Ginko
    Ginko Sep 06, 2008

    Try doing the reset suggested above, see if they work, leave also the TV unplugged for few hours tonight.

    Generally, if the bands appear only for some times , then image expands regularly it is a faulty IC or capacitor, that works fine only after it warms up.
    I work on PC monitors etc.I have not serviced your model yet, and I don't have the service manual to follow the troubleshooting diagrams to locate faulty area on the board, test parts and find defective one.

    If you want to DIY here is the service manual.

    Here you get all parts for your TV.

    If you want to call a technician there is a number listed at the end of the user manual.

    If I find any free schematics I will post here.


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