Question about Hitachi 43UWX10B 43" Rear Projection Television

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Hitachi 43uwx10b I just replaced the IC's and still have convergence issues; red is out of adjustment. What would be the next logical step? Transistors? or... I've got the steps to manually adjust, will this get me by for a short period?

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  • Daniel Sorrels May 28, 2008

    in regards to the resistors, do you know the part number from Hitachi for the ones along the back of the heat shield for the IC's? I have replaced my IC's but continue to have converg issues and was going to look at replacing these now.

    Thank you in advance,

  • Daniel Sorrels May 28, 2008


    METAL OX. 1.5OHM 1W
    Hitachi Part Number: AT03193S



    would this be the right one?

  • Daniel Sorrels May 28, 2008

    Here's the IC part number....exact replacement.
    STK392-110 Integrated Circuit STK 392-110 IC Chip

    I have one resistor that seems to be obviously burnt, don't have the exact number with me, RK46 perhaps?



  • Daniel Sorrels May 28, 2008

    would it be wise, since they are relatively cheap to replace, to go ahead and replace all of them?

  • Daniel Sorrels May 28, 2008

    partstore.com has these resistors for a very reasonable price.

    when looking at the service manuals part description, for example, RK42 it is listed twice, with two different part numbers, and the description is also different??

    My question is which one to chooses. In parenthesis under part descritpion it shows the OHM's (which are different) and a DP17 or DP14G. What is this defining?

    thanks for the help!

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Check the area for pico fuses and make sure that they are good. Also, thre may be small valued resistors as current limiting resistors in that area rather than the pico-fuses. Check for those too.
Dan

Posted on May 27, 2008

  • ABRsvcs May 28, 2008

    The listing one is possible. Can you post the IC part number (STKxxx) here as well?

    Thanks,

    Dan

  • ABRsvcs May 28, 2008

    RK46 is the same as the one you listed above. Check also for RK54 and RK97 which are also the same value. Any/all of them may be bad.

    Dan

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1 Answer

Double image, red is 2 inches off main image. convergance ic amp?


Yes, your Convergence ICs have failed. Replace the STK chips, check fuses and the resistors next to the STK chips. Replace as necessary and re-align via the service menu.

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The two STK CONVERGENCE CHIPS AND ANY BAD RESISTORS AROUND THEM WOULD HAVE TO BE REPLACED.

Typical cost for all the parts on EBAY or Suburban Electronics would be under $25.

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1 Answer

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Replace the STK ICs,they are big black IC they will have PN# on them Replace Both ICs STK392-110s use 120s
Mats Electronics 1-800-628-1118

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1 Answer

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Your convergence chips have failed.

Sometimes when they fail the TV will look 3D or distorted and sometimes it will just loose video and audio and chirp.

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Go here for a solution...

http://www.fixya.com/support/r2861627-updated_convergence_problems_amp

Sep 05, 2009 | Hitachi 43UWX10B 43" Rear Projection...

2 Answers

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1 Answer

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Ed

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1 Answer

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1 Answer

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http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220

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