Question about Hitachi 43FWX20B 43" Rear Projection Television

2 Answers

Red Curved line

The top left of my screen all of a sudden has a red curve. I checked the alignment and the red is not aligned. How do i fix it or align it.

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  • fussy Nov 22, 2007

    My Phillips 52 projection screen tv has these second red curved lines added to the normal text on the screen. There is also red halos. It also has red and green lines showin on the faces around the eyes,mouth and forehead. Help.. Is this too expensive to fix?

  • tha_shiznitt Apr 16, 2009

    The top left of my screen all of a sudden has a red curve. I checked
    the alignment and the red is not aligned. How do i fix it or align it.

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2 Answers

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  • Hitachi Master
  • 3,459 Answers

Your TV most likely a convergence 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.
Here are some photos of convergence problems.

Red Curved line - 3dc9420.jpg
645fba6.jpg
0dcec37.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 replaced. This is a common problem.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Posted on Jun 20, 2009

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  • Master
  • 3,130 Answers

Your first going to need to go to http://www.servicemanuals.net and download a service manual. Look at the schematic diagram, locate the convergence IC's an then order them from http://www.partstore.com Then hopfully you know how to unsolder solid state electronics. If theres a step in here you dont understand, like reading a schemastic, then a TV set is NOT the place to be experimenting around inside of. please seek out a pro to assist you in this repair.

Posted on Sep 12, 2006

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Posted on Jan 02, 2017

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Related Questions:

1 Answer

Picture has red curved horizontal lines


This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 20, 2010 | Sony KP-51HW40 51" Rear Projection...

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KP-51H1w40 has red blue lines curved across the screen about an inch or so apart, like a rainbow


This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 09, 2010 | Sony KP-51HW40 51" Rear Projection...

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Red color convergence issue; Red lines are curved


This sounds like convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Nov 24, 2009 | Televison & Video

1 Answer

The picture looks 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.

42d3683.jpg

7859b01.jpg

e87380c.jpg
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

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1 Answer

Curved red image on 46" Akai rear projection TV


Yes! an idea that the flyback transformer is shot!


Please rate our help to keep the free service online

Aug 29, 2009 | Akai PT4298HD Rear Projection Television

1 Answer

RED LINES ON TOP AND BOTTOM OF SCREEN


Hi, the convergence IC`s have failed and possibly a few resistors, unless your very proficient at soldering and un-soldering this is not a repair a layperson can do. Besides replacing the shorted parts there is an alignment procedure that must be done once the IC`s are replaced. To give you a "rough" idea we charge $246 for this model set, different geographical locations will charge different amounts so my charges may not be relevant in your area, hope this helps, video-tek

Feb 06, 2009 | Samsung PCL6215R 62" Rear Projection...

1 Answer

My Philips HDTV 60PP9202 has blue and red curved lines



Check to see if you can adjust the convergence. If you can't adjust the red and blue in all directions you need to replace the convergence chips and resistors. If you not sure how to check the convergence goto the site www.TvRepairKits.com and goto the Tips section. 

Dec 25, 2008 | Philips 60PP9202 60" Rear Projection...

1 Answer

Screen appears curved on top and bottom


One or more colors can't be adjusted when when using the convergence menu. Screen is bowed in but stationary.

Solution: 

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kit for your exact model. The kit inlcludes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc. Everything you need to fix it yourself. Its an easy fix. 

Jul 22, 2008 | Philips 55PW9363 55" Rear Projection...

1 Answer

Screen is curved inward on all 4 sides and there is a red, and a blue line that is curved at the top of the screen


This is a convergence problem.. possible deflection problem... you might need a tech to look at it...

Nov 19, 2007 | RCA HD56W66 56" HDTV

1 Answer

Uh oh... the colors are curved and wacky


replace the amplifier IC chips for the convergence.  part # stk392-???  could be from 040 to 120..  90% chance that'll fix it.

Oct 08, 2007 | Panasonic PT-47WX49 47" Rear Projection...

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