Question about Hitachi 57F500 57" Rear Projection HDTV-Ready Television

2 Answers

Tv out of focus

Showing two different colors could it be the digittal array how do you recet it or can u fix it yor self

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  • dnlbal Feb 28, 2009

    dnlbal has a 57'' hitachi rear porjection it has a greenish blue picture with a red out line on it. screen is broken in lower right hand conner

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Solution #1 posted on Feb 28, 2009 tv out of focus - 0%20stars_w.png
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Rating: 91%, 106 votes
Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
701cb04.jpg
f0900cb.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be retv out of focus - 2c07611.pngs is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change



2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Posted on Mar 09, 2009

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Hello what you have is a converagrce problum. you need to replace the convergance ic chip's . they control the color that why it look's like that they will have stk4011 or something like that on them . good luck

Posted on Feb 08, 2009

  • 1 more comment 
  • MICHAEL WALLACE
    MICHAEL WALLACE Feb 08, 2009

    hello what you have is a converagrce problum. you need to replace the convergance ic chip's . they control the color that why it look's like that they will have stk4011 or something like that on them . good luck

  • MICHAEL WALLACE
    MICHAEL WALLACE Feb 08, 2009

    hello what you have is a converagrce problum. you need to replace the convergance ic chip's . they control the color that why it look's like that they will have stk4011 or something like that on them . good luck

  • MICHAEL WALLACE
    MICHAEL WALLACE Feb 08, 2009

    hello what you have is a converagrce problum. you need to replace the convergance ic chip's . they control the color that why it look's like that they will have stk4011 or something like that on them . good luck

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