Question about Hitachi 43F300 43" Rear Projection Television

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Model 51swx20b---bad colors and shadows in blue

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NEEDS CONVERGENCE REPAIRED EST AROUND 300.00 CALL TERRYSTV IF IN N. CALIF

Posted on Apr 12, 2009

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My Model TV # is 51swx20B. Two days ago the picture started having a lot of green in it and no blue. What is the repair needed.


Do adjustments on focus block. Will have to open front panel access door, focus block blue will be on left, green will be on top. Top screen bottom focus. Turn clockwise to increase, counter clockwise to decrease brightness. Turn the color all the way down on menu where it's pure black and white and make adjustments for perfect black and white picture, then when you adjust color, it will be perfect.

Aug 09, 2011 | Hitachi 51SWX20B 51" Rear Projection...

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There is a blue shadow (especially around on screen graphics, lettering etc.) when in HD mode. I attempted to align the colors through the color convergence but the blue alignment did not work. I also...


No.This tv have a convergence problems,it dead.The tv have R,G,B colors lines mis alignments,have colors shadows pictures or 3D pictures look alike?The tv convergence board,must be repaired by repacling 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board,to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Feb 14, 2011 | Mitsubishi WS-65807 65" Rear Projection...

1 Answer

There are blue shadows around heads, much of the print is in yellow


The tv have a problems known as Convergence problems,it dead.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts must be replaced to solved the convergence problems.The shop will cost u $300-350 for parts and labors.

Aug 20, 2010 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

My 51" sony rear projector has blue shadow on image. pictures are fine but it has blue shadow. how can I fix that?


Clean the mirror or the blue color gun. You may have it next to a powerful magnet from a speaker system that can also distort the blue. If thats not it it may be bad convergence ICs

Mar 08, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

The convergence going bad again on my Hitachi 51swx20b


Sounds like loose solder on the chips. Either that or they are failing. You can save money next time by doing it yourself with a kit from www.TvRepairKits.com

Jan 10, 2010 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

We own a Hitachi 51swx20b and is now experienc ing blurred projection or doubling of screen on only half of the set. Color is now wrong and magic focus does not cure problem, Help thank Phil


Your TV most likely has one or more 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.
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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 replaced. This 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.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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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.

Apr 02, 2009 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

Picture has a blue shadow


Hi,
Seems convergence out IC is fried in TV so it gives blue shadow.

Check out Convergence Out IC which you need to replace in TV, if you have enough experience of repair of big TV, necessary tools and know basic electronics.

Dec 18, 2008 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

Help with project


Can you post a picture of what the picture looks like, and do you have the service manual for this model?

Mar 12, 2008 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

Loss of color picture


I have a blue-ish yellow ghost tint which just appeared on my 51" 51SWX20B made July 2002. Did the magic focus got a number 5 at the end. Did you get a number when you did the magic focus?

Dec 01, 2007 | Hitachi 51SWX20B 51" Rear Projection...

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