Question about Hitachi 46F500 46" Rear Projection HDTV-Ready Television

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Hitachi 46f500 convergence?

I have the 46F500 Hitachi Projection TV. The set has blue sagging down from the left side of screen and also has blue shadows. I removed the back cover to see if anything noticeable stood out. Wow was it dirty? I cleaned it out and noticed that on top of the red lense there is a piece of narrow tape stuck to it. Should it be there? After cleaning no change in picture. I also tried to do manual convergence and the blue lines will not line up on the left side of the screen. Running magic focus in AUTO it would hang up on the blue and end showing a number "5". Any ideas what is wrong? The trouble started after welding on the same circuit. Coincidence?

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  • Anonymous Jun 25, 2008

    MY PROBLEM IS THAT THE PICTURE ON THE SCREEN IS VERY BLURRED. IT IS DIFFICULT TO READ ANY WRITING. HELP!

  • journie2005 Nov 26, 2008

    i have the same problem with the red...any ideas on how to repair at home?

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A common problem wich i also have with convergence with blue and red convergence.
the image converge amplifiers are burnet out wich in turn blow out resisters that control individual color convergence.

Posted on Sep 27, 2008

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Have a 46f500 hitachi projection television. Started out with a blue reversed arc hanging down on upper right. Now images are not focused, and red, blue and green are layered. Double images. I looked...


It is a convergence problem and set uses two of the STK-392-150 CHIPS. Both will have to be replaced and the set adjusted.

for more information let me know if you can solder and your skill levels.

SD TECH

Jan 11, 2011 | Hitachi 46F500 46" Rear Projection...

1 Answer

I have a hitachi model 46f500 that looks distorted. (3d)


Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
  • 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.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

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Here is a quick test....

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

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 20, 2010 | Hitachi 46F500 46" Rear Projection...

1 Answer

My picture on the hitachi 46f500 is all small white line? when i try a dvd it is out of focus and all grren, blue, and red....


Ur convergence it dead.U know how solders?Buy a convergence kit use what in that kit.Tries Websites.Tv repair World.com,Tvrepairkits.com.

Dec 20, 2009 | Hitachi 46F500 46" Rear Projection...

1 Answer

I have a Hitachi 46F500 tv and the red crt bowed


I just had the convergence replaced and have a great picture

Aug 16, 2009 | Hitachi 46F500 46" Rear Projection...

1 Answer

Hitachi 46F500 and there is a blue curved bar


Your TV most likely has a 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.
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77ea520.jpg
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2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

May 15, 2009 | Hitachi 46F500 46" Rear Projection...

1 Answer

Yellow and blue on screen


I am slightly confused about the model of the television, because a 46F500 is a rear projection set that doesn't have a lamp. It has 3 picture tubes and I have a few of them in my shop right now that have the problem you reported. What we do to this set when it develops a convergence issue is to check each resistor around the convergence chips for discoloration, and replace any of them that have changed in value, along with the STK392-150 ic's. If you don't have an ohm meter and solder/desolder equiptment, you can usually get a shop to do this repair for 150.00 to 350.00. Parts will be 50.00 and labor , the rest, depending on the quality of repair shop that you use. Good luck, Russmann.

Nov 16, 2008 | Hitachi 46F500 46" Rear Projection...

1 Answer

Hitachi 46f500 screen messed up after welding on same circuit


If you did manual conv. You have to redo it when you replace the bad parts. Them being conv. ic's replace them and check 1/4 watt resistors that are low value right beneath amps. Careful not to solder any foil pads together or you will have major problems. Very common for do-it-yourselfers. Good luck, Russmann.

Jun 15, 2008 | Hitachi 46F500 46" Rear Projection...

1 Answer

Convergence on Hitachi 46f500


replace convergence IC's,then re-check alignment

Sep 17, 2007 | Hitachi 46F500 46" Rear Projection...

2 Answers

Color convergence?


Can anyone give me the resistor values for location RK 42, RK 46 and RK 62? Hitachi 46F500 TV. Or can I be pointed to the location of a service manual?
Tony

Sep 13, 2007 | Hitachi 46F500 46" Rear Projection...

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