Question about Hitachi 53FDX20B 53" Rear Projection Television

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Hitachi Model 43FDX11D Will not Converge properly

A warranty technician replaced the Power Convergence Panel 2 years ago. The television is now experiencing the same focus / alignment problem. The TV is no longer under warranty. How hard is this to replace ...I am a network specialist who has experience working with the internals of computer equipment but no experience with television equipment.

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  • Tonemanyy Apr 03, 2008

    Thx for you prompt reply...can you send me the link to the IC's.



    I am pretty handy with the soldering iron.



    Hopefully they are cheaper than the Power Convergence Panel which is listed at $250.

  • Tonemanyy Apr 06, 2008

    I am having problems identifying the chips...there are many boards (6-8) in the device. Is there a way that you can assist me with the identification.

  • Anonymous Apr 18, 2008

    Can you tell me where the chip is?

  • Tonemanyy Apr 18, 2008

    Please tell me where the chip is?

  • Tonemanyy Apr 25, 2008

    I removed the chips without any problems.



    There are 2 Chips in my chasis...STK392-120 (D4E11) and STK392-120 (D4E12). Is there a difference between the 2 chips?

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  • Hitachi Master
  • 8,617 Answers

Its the ICs that go out on them just minor soldering and takes about an hour from start to finish. If you would like I can post a link where you can order replacements and they include free step by step instructions so you can do the repair yourself.

Posted on Apr 02, 2008

  • 1 more comment 
  • Sonny Berry
    Sonny Berry Apr 03, 2008

    They are about 20.00 each and you will need 2 or 3 depending on your chassis usually hitachis have two STK392-120 ICs and some have 3 STK4574. You will need to look inside your set to get the proper number off your ICs. They are attached to a large aluminum heat sink I will include a picture of what they look like . Here is the link for the replacement ICs just click on the convergence IC catagory and you will find your STK numbers listed there. http://servicemanuals.vstore.ca/

    and here is what they look like.

  • Sonny Berry
    Sonny Berry Apr 06, 2008

    can you post a picture of your chassis and I will circle the area where they are and repost it

  • Sonny Berry
    Sonny Berry Apr 21, 2008

    They should be attached to this heat sink.

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