Question about Hitachi 61SBX59B 61" Rear Projection Television

1 Answer

Hitachi 61SBX59B I unplug the unit, plug the unit back in and the green lights come on and then with in three seconds the unit shuts off!

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  • Hitachi Master
  • 5,138 Answers

Replace Both of your STK ICs STK392-110 use 120s
Mats has them 1-800-628-1118

Posted on Oct 11, 2010

  • 6 more comments 
  • imsureru Oct 11, 2010

    By the way Hi, So you think it has nothing to do with the power supply, or did this just have to do with the banding issue. Please advise!

  • ladywinn
    ladywinn Oct 11, 2010

    Before you replace ICs check D957, it is a 15volt Zener Diode. if it is Shorted Set will shut down.
    Regulator/power supply circuit . Google to Encompass Parts Distribution Type in your model # they have Free Service Manual that you can print out online,they also list Parts /Prices to this Model# 61SBX59B

  • imsureru Oct 12, 2010

    Here is the summation of the whole problem sorry for not posting first.

    My Hitachi 61SBX59B over the last few months has been acting funny like turning on the tv and no sound but was corrected by changing the channel. Then while that went on I also developed a type of banding, like if you watched CNN or Fox News and the bullets at the bottom of the screen would be pulled to one side or the other with little ghosting at those edges. Then it started at the top as well, most prevalent when tickers or bullets were on the screen both top and bottom. Also an all black screen has a shade of red not noticeable at any other time. Mind you it sounds bad but in general the color and picture are likable. I love the color on this set even after 9yrs any way today the unit died on me and when I went to try and power it up again nothing. I unplugged the unit waited a minute or two plugged it back in and the green lights lit on the PCB after a couple of seconds it powers off again. I don't know if all of these are separate issues or not but wanted to give an accurate portrayal.

  • ladywinn
    ladywinn Oct 12, 2010

    The ICs you need to replace have alot to do with Convergence and power supply Startup.
    CK zener diode if OK then replace the ICs.

  • imsureru Oct 13, 2010

    Any particular brand recommended on the ICs, and does it matter if they are specific to Hitachi.

  • ladywinn
    ladywinn Oct 13, 2010

    Use 120s or 150s they are better ICs .STK392-120 or STK392-150
    Ask Mats for Free Catalog they will send you one.

  • imsureru Oct 20, 2010

    I'm sorry it took so long but the zener diode was fine, getting ready to order the STK392-150's. Is there any thing else you can think of to check for!

  • ladywinn
    ladywinn Oct 20, 2010

    Replace the ICs and that should Fix TV.

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Other Possible Symptoms : The green LEDs on the circuit board light up for a few seconds then turn off.

Hope this helps,

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