Question about Hitachi 43FWX20B 43" Rear Projection Television

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Color Alignment The blue color is out of alignment on my set -- a rather large blue spot is evident in the upper left corner. Magic Focus does not fix the problem, so I tried the manual focus. It takes some time to work through the manual focus grid, but looks great when finished. HOWEVER, when I turn the set off and back on the color is severely out of alignment. How do I make it retain the manual focus when the set is turned off and back on again? When this occurs, the only way to get a decent picture back is to run Magic Focus. Then the blue spot returns in the upper left corner.

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Get a shop manual,it tells how to do the whole convergence process and how to store it to the rom memory to save it.

Posted on Oct 19, 2007

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6ya6ya

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Hi there,
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Posted on Jan 02, 2017

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1 Answer

Magic focus --blue and yellow sag in the upper left area of the screen


This is a problem with the convergence circuit. If you can solder, you can repair this yourself. First try and resolder the pins on the existing convergence ICs. These are large black ICs attached to a heatsink and should be marked STKxxx. If the resoldering does not resolve the problem, replace the ICs.
Dan

Mar 22, 2008 | Hitachi 53FDX20B 53" Rear Projection...

1 Answer

Upper left corner is distorted and neon green


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.

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 from the link below.

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 - 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.

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 solution

93a1209.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you know what you are doing. If you have never done this before we would advise calling a shop or if you want to do it yourself get a complete kit with instructions and support from www.TvRepairKits.com

May 06, 2010 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Turned on TV this morning and the colors were out of alignment. TV works just looks funny. Tried the magic focus and got most of the screen lined up....except the upper left hand corner where the colors...


There is a convergence output kit for this set. There are probably resistors in the convergence circuit that are starting to loose there values. If you are going to have the set worked on have them install the whole kit which includes the convergence outputs and resistors. Thanks

Oct 27, 2009 | Hitachi 53UWX10B 53" 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...

1 Answer

Colors are not aligned Magic focus ?


The magic focus will stop if there is a bad sensor and or a problem in the convergence circuit.

This set uses two STK-392-110 convergence chips--both along with any of the resistors that protect them need to be replaced and the set adjusted--I have repaired hundreds of these sets----


Confirm model number----and if you go into the customer menu and either red or blue will not move in any or some direction--the chips have to be replaced---LET ME KNOW WHAT YOU FIND AND I CAN GIVE YOU FAIRLY DETAILED INSTRUCTIONS ON WHERE TO GET THE PARTS AND WHAT IS INVOLVED IN THIS REPAIR.

I am here to help people--

REGARDS, SD TECH

Oct 02, 2009 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Yellow and blue color ruins total picture on 50" tv,can't get rid


lupe0112,

I'm no expert, but I think that you have a problem with the convergence of the 3 color guns. I've been working on a similar problem. As a first step, have you tried "Magic Focus?" The Magic Focus button for the Hitachi 53UDX10B is at the left of the small front panel controls that also include your RCA composite and SVideo connectors. Let the set warm up for about 20 minutes (as recommended by the user guide), and then press the Magic Focus button. When you press the Magic focus button, the set will auto align the 3 color guns. If this doesn't fix your problem, unplug the TV for at least 4 hours and try again.

Jan 08, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

The Model# is 53UWX10ba - Colors off in upper left part of screen


The problem is with the convergence circuit. If you can solder, try resoldering the pins on the convrgence ICs. If that fails to resolve the problem, replace the ICs. These ICs will be large and black, attached to a heatsink and be marked STKxxx.

Update this with your progress.

Dan

Jun 19, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Hitachi 53uwx10b Convergence


You must have the original remote to do complete convergence adjustments. Remote method: Press MAGIC FOCUS button on front panel to start the magic focus. When magic focus is running, press MAGIC FOCUS again. STOP should appear onscreen. Immediately press RECALL or STATUS on the remote (must be pressed before STOP vanishes). The set is now in DCAM (Digital Convergence Adjustment Mode). Manual method: Remove the front grill and access panel or reach around from the back and press the little pushbutton located in the front left corner of the PC board, next to the Digital Convergence Module.
Once in DCAM, the remote buttons STATUS selects green, 0 selects red and ANT selects blue. 2,4,5 and 6 move the cursor and the thumbstick makes the corrections.Make all necessary corrections and then press PIP MODE. The words ROM WRITE? appear onscreen. Press PIP MODE again to store settings. When green dots appear, press MUTE to return to convergence pattern. Press PIP MODE (ROM WRITE? appears again) and then press PIP CH. This will Initialize the internal sensor data positions. When INIT finishes, press POWER on the TV and convergence is complete.

Mar 26, 2008 | Televison & Video

1 Answer

Green alignment


One of your convergence output IC's has burned out and needs to be replaced.

Jun 22, 2007 | Hitachi 53FDX20B 53" Rear Projection...

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