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Hitachi 50UX26B

Discussion in 'Electronic Repair' started by [email protected], Jan 31, 2007.

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  1. Guest

    Hi there I just recieved a Hitachi Ultravision 50UX26B and after about
    5 minutes it will shutdown and the red protection led will be on
    inside, turning it back on keeps it on for about 30 sec more each
    time. The 5 green leds inside are one strong while powered up and the
    protection (red led) is softly on until the set powers down then its
    bright and the green ones go out.

    I can'nt see any blown caps or components and all fuses are good (even
    the "litlfuse") but while powered on there is a buzz from around the
    "protection" area on the circuit board (picture).

    Picture looks GREAT when its on and audio is good to, so if its not to
    bad of a fix (probably can do myself) I would really like to get it
    working again so I dont have to go back to the 20" daewoo

    Thanks for ANY help.
     
  2. Guest

    A tech, near my house, barely wanted to tell me it was in the power
    circuit without coming over and charging a $125 trip fee and $225
    troubleshoot fee....

    Does ANYONE have any ideas? :) Thanks again for any advice
     
  3. Jim Land

    Jim Land Guest

    wrote in @m58g2000cwm.googlegroups.com:
    Start with the FAQ, which has great information:
    http://www.repairfaq.org/sam/smpsfaq.htm
     
  4. Art

    Art Guest

    Contact Hitachi, ask them for a quote for their service literature,
    including the respective service bulletins.
    Their costs may come close to the fees the technician quoted for you to
    have it professionally checked out.
     
  5. b

    b Guest

    ha escrito:
    there could be aany number of things wrong here. that is why a tech is
    needed!
    Sounds like something is drawing slightly too much current or is out
    of spec. I'd start by changing any caps on the b+ line (typically
    rated 160v).

    -B.
     
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