Question about Hitachi 53UDX10B 53" Rear Projection Television

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Where is the "little blue button" on Hitachi rear projection TV?

I have an Hitachi 53UDX10 rear projection TV that is stuck in the screen that consists of 9 cross hairs (I got there after a ROM save error trying to adjust color convergence misalignment from the service menu). The 52" screen of this TV sits on a "pedestal" that houses the speakers. I read some other threads here that for some Hitachi models I should remove the front panel to access a "little blue" reset button that gets me out of the cross-hairs mode and back to the service menu, but there are no screws in the base of the front of this TV that would let me remove it. Does anyone know where that reset button would be on this model? Is it behind one of the back panels?

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  • Robert Katman Dec 29, 2008

    To answer my own question, the "little blue" reset button on the
    53UDX10 is on the convergence board which theoretically should be
    accessable from the front left side behind the speaker panel, as it is
    on other Hitachi sets. I reached it from the rear of the set while I
    had the back cover off and the set unplugged. But I still don't know
    how to get the front panel speaker cover off to access this reset
    button while the set is on. There are no screws visible. Is this panel
    clipped on? I've tried tugging at it without success. Any help would be
    appreciated because I'm still stuck in the service screen with the 9
    cross hairs.

  • Robert Katman Jan 07, 2009

    More answer(s) to my question: The entire front panel (including the
    L&R speaker covers) of the 53UDX10B is held on by plastic clips. I
    tugged on the upper left hand corner of the speaker cover with my
    fingertips, and it came loose. Then I pried off the rest of it with my
    fingers. That revealed a plywood panel that served as a front cover for
    the circuit board area and that was held by 5 screws. I removed those,
    and that plywood panel came off, giving access to the insides of the TV
    from the front. Hope this helps someone down the line. BTW, the "little
    blue button" is on the front side of the convergence board which sits
    to the far left as viewed from the front of this TV set.



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Posted on Jan 02, 2017

  • 61 Answers

SOURCE: RCA 52" Rear Projection P52930BL

You can adj. from the front panel of the set using the channel and vol. buttons,if the set you have has a ptk 195 chassis,check and make sure you have adj. projection tv in screens of the menu,in not the convergence power supply has failed,replace the reg on the board,part number is 215530

Posted on Mar 06, 2008

  • 398 Answers


If you mean that one of the colors has suddenly drooped toward the center, creating a curve along the side where the colors no longer line up, it means that one of your convergence IC's has burned out and needs to be replaced. You should not play with the convergence settings when this happens because when the IC is replaced, the settings will be all out and have to be reset. It is a good idea to replace both STK392-110 IC's with the newer improved STK392-150's. If you have never replaced convergence IC's or realigned convergence circuits then allow a qualified tech to handle it for you.

Posted on Aug 07, 2007

  • 12 Answers


do you have a magic foucus button??

Posted on Aug 15, 2007

  • 1 Answer

SOURCE: How do I Remove Front Cover Screen of Hitachi 53SBX59B53 Projection TV???

Did you ever find the solution to removing the front screen? I have the same problem. Please write at

Posted on Jan 21, 2008

  • 121 Answers


it sounds like your blue convergence ic is getting weak you need to replace the ic's STK392-110 and you should replace both because when 1 is bad the other will go real soon. They are inexspensive at the sight I posted and you will also get free tech online support if you purchase them there.

Posted on Apr 13, 2008

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