Question about Hitachi 43FWX20B 43" Rear Projection Television

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Hitachi 43fwx20b Convergence problem

I was reading some of the problems others were having with the picture on this tv and am having the same, I think. My picture got all distorted on the left side with green and purple colors. The Magic Focus didn't resolve the problem. I adjusted the grid in the manual mode and it is much better but there is still a purple line vertically on the left edge of the screen I can't get rid of. Should I replace the STK's and get the resistor KIT10 or just the STK's? Thanks.

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  • Hitachi Master
  • 9,587 Answers

Get the kit. It has more than resistors .

Posted on Jun 27, 2017

6 Suggested Answers

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Posted on Jan 02, 2017

  • 71 Answers

SOURCE: Hitachi 65SWX20B 65 in. Rear... Problem

You have to replace 2 IC's STK 392-120 in convergence amplifier module. If you're a good handyman you can do it by yourself, if not call a tech. Also you can find one resistor burned in the output of the IC's. Replace that too.

Posted on Jan 15, 2008

  • 1 Answer

SOURCE: Hitachi 57SWX20B 3D Effect due to green light convergence problem

I'm trying to fix the issue on my 43FDX20B. So far, I'm able to move the lines up and down, but can't get the left/right motion to fix it. The attached link has the dynamic mode instructions, so you can correct this issue yourself.

http://home.comcast.net/~leebailey00/Hitachi_DCAM_Manual.pdf

The only thing I didn't have was the screen overlay jig the manual talks about. I decided to create one myself and use the screen as a beginning template. I went to our local hardware store and picked up some home window weather covering. The roll cost about $15, is a clear strong plastic and the template was very easy to create. I used a straight edge after I put dots on the plastic and measured the lines for being square and equal after I took it off my tv. Good thing is that if you don't like what you make the first time, you have a 25' roll to use to try again (ha).

Posted on Mar 02, 2008

Slinteriors
  • 8617 Answers

SOURCE: blue colour is ghosting off to the side

blue convergence IC needs replacing. That should have 3 ICs one for each color if so you only need to replace the blue. but if it has only 2 ICs then you will need to change both. If you need further info let me know.

Posted on Mar 19, 2008

Ecollier2012
  • 3459 Answers

SOURCE: Hitachi 51SWX20B Convergence problem

Solution:

Your TV has a convergence problem. Here are some of the most common symptoms.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in or warped.

Here is a quick test....

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

Try to adjust the 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.

Its a fairly easy fix on the Hitachi sets.

You can get a repair kit that includes all the parts from www.TvRepairKits.com. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself.

Posted on Jan 29, 2009

mbelectronic
  • 147 Answers

SOURCE: screen is distorted with purple and green kind

your crts have gone bad.remove the front
cover and tap on the kneck of the red and green crt.if you see a change.crts are defective.

Posted on Jul 29, 2009

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1 Answer

My hitachi big screen has red shadows on picture how do i fix it


What you described sounds like a convergence problem. When convergence has failed the colors will commonly look 3D,warped, etc. This tips page here on Fixya has more details.

Jan 27, 2013 | Hitachi 43FWX20B 43" Rear Projection...

1 Answer

Blurry picture the red, green line dont match


Ur convergence is dead.Must know how to solders?Must replaced 2 STK convergence ICS,and some or all it resistors.Tries Websites Tv repair World.com,Tvrepairkits.com to repair it ur self.The shop will cost u $300 for parts and labors.

Mar 19, 2010 | Hitachi 43FWX20B 43" Rear Projection...

1 Answer

Tv has a 3d look what can be done to fix it hitachi 43fwx20b


The convergence board is bad. Replace the STK voltage regulators and any associated discolored resistors.

Mar 13, 2010 | Hitachi 43FWX20B 43" Rear Projection...

2 Answers

Hitachi 43fwx20b Convergence Problems


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

Convergence problems are very common on all Projection TV sets including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Feb 25, 2010 | Hitachi 43FWX20B 43" Rear Projection...

1 Answer

Hitachi 43fwx20b magic focus the 3 colors are not adjust.


First have the convergence IC's replaced these are the two large black IC's mounted on an metal heat sink.

Oct 24, 2009 | Hitachi 43FWX20B 43" Rear Projection...

2 Answers

Picture has shadows with different colors (red, yellow, green)


Sounds like the convergence needs adjustment. You can do this through the menu-follow the on screen instructions. The idea is to line up the red, green, & blue.

Jun 24, 2009 | Hitachi 43FWX20B 43" Rear Projection...

2 Answers

Convergence on top of screen and 3D bended lines (yellow & pink lines).


Hi,
It is failure of convergence out ICs causing 3-D type picture on screen, you need to replace two big ICs in convergence section on main board.
Click Part Store to see an image of IC as well as price info.

If you need service manual of 43FWX20B, let me know to provide you a copy.
Thanks.

Apr 25, 2009 | Hitachi 43FWX20B 43" Rear Projection...

3 Answers

Will not turn on/ black screen


My Hitachi Tv 43fwx20b turn on but not have sound and picture

Jul 03, 2007 | Hitachi 43FWX20B 43" Rear Projection...

1 Answer

Horizontal hour glass picture


The convergence Ics need replaced. In Hitachi, resistors and sometimes a coil needs replaced as well. The convergence/deflection PCB is available, but, the cost of that board is higher than having a servicer come to your home and repair the unit to component level. If you are not familar with this circuit, then call a servicer. Have them replace both ICs not just one. Make sure they are repairing to component level and not replacing the board. Hope this helps.

Dec 16, 2006 | Hitachi 43FWX20B 43" Rear Projection...

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