Question about Hitachi 43FDX01B TV

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Hitachi 43FDX01B Convergence Problem

I have 43" HD rear projection 2001 Hitachi TV that has a major convergence problem. Colors are not lining up, Bow at top and bottom, cannot adjust the horizontal convergence using the remote. I called a Technician who came out and replaced both IC's and a burned out resistor. Still had the same problem. No change. He replaced the same IC's again thinking he may have had a bad part, no change. He is at a loss as to the next step. I would like to get this fixed, but hate to call someone else since he has time and parts invested. Does anyone have any idea what else could be wrong? He states that he has heard of at least 8 other tv's of this same vintage with the same problem and no one seems to have a solution. 43" hd rear projection changed convergence ic"s and open 2.2 ohm resistor red bows at top and bottom

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It looks like the voltages might not be getting to the STK ICs. I would suggest for the tech to check all the pico fuses that are related to the convergence circuitry. He needs to check and make sure that +28 volts and -28 volts are getting to the ICs. If those voltages are missing, there could be a blown pico fuse.

Posted on Aug 11, 2008

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Here are the directions for getting into the ’secret’ convergence menus. You will need your remote operational to do this:

  1. Turn on the set
  2. Press and hold the convergence button the set and hit the input button on the remote.
  3. Convergence adjust is now engaged.
You should see a grid on the screen. This means you are now in the convergence adjust mode. Basically, now it’s up to you to adjust as you see fit. To move around on the grid,
use the following keys on your remote:

  • 2: up
  • 4: left
  • 5: down
  • 6: right
Use the cursor on your remote to move the points around. You also have the ability to select a mode for adjustment. The various modes allow coarser or finer tuning of the convergence grid. Generally speaking, you should start out in the 3 X 3 mode (meaning you have access to adjust 3 points on the grid) and then move to finer adjustment modes to perfect the picture. Change modes by doing the following:

  • Press Recall 5 times to activate 3X3 mode
  • Press 0 5 times to activate 7X5 mode
  • Press input 5 times to active 13X9 mode
Generally speaking, the first step is to get just the green color aligned. Press MENU on your remote and then EXIT and you should see only the green lines. After you adjust the green, you will want to pop up another color over the green and align it with the green lines. Here are the modes:

  • Blue: INPUT button on the remote
  • Red: 0 button on the remote
  • Green: RECALL button on the remote
  • MENU: to remove an activated color and return to just green

Again, to start with just green. Then activate one of the other colors (red or blue.) Now, move around and adjust so the lines all line up across the screen vertically and horizontally. If you want this precise, you will have to develop some kind of overlay, but for fine tuning, you should be able to eye it.
When all the colors are properly aligned, you will see white lines. Don’t worry if it isn’t absolutely perfect - a small amount of fringe is acceptable and will go unnoticed. When you are done you will want to save the adjustments you made. To do this:
  1. Press PIP MODE on the remote twice (the first time it will as you if you want to save, hitting PIP MODE the second time does the saving
  2. The screen will blank briefly. Then you will see a pattern of evenly spaced green dots. You have successfully saved the settings once you see this.
  3. Hit PIP CH to go back to do more tweaking.
At this point, the changes are saved. Turn off the TV and back on again to see the results with a normal signal. /* 0 ) { location.href = "http://zeroization.com/?cat="+dropdown.options[dropdown.selectedIndex].value; } } dropdown.onchange = onCatChange; /* ]]> */

Posted on Aug 11, 2008

  • Paulito Manuel
    Paulito Manuel Aug 11, 2008

    Here are the directions for getting into the ’secret’ convergence menus. You will need your remote operational to do this:



    1. Turn on the set

    2. Press and hold the convergence button the set and hit the input button on the remote.

    3. Convergence adjust is now engaged.
    You should see a grid on the screen. This means you are now in the
    convergence adjust mode. Basically, now it’s up to you to adjust as you
    see fit. To move around on the grid,

    use the following keys on your remote:



    • 2: up

    • 4: left

    • 5: down

    • 6: right
    Use the cursor on your remote to move the points around. You also have
    the ability to select a mode for adjustment. The various modes allow
    coarser or finer tuning of the convergence grid. Generally speaking,
    you should start out in the 3 X 3 mode (meaning you have access to
    adjust 3 points on the grid) and then move to finer adjustment modes to
    perfect the picture. Change modes by doing the following:



    • Press Recall 5 times to activate 3X3 mode

    • Press 0 5 times to activate 7X5 mode

    • Press input 5 times to active 13X9 mode
    Generally speaking, the first step is to get just the green color
    aligned. Press MENU on your remote and then EXIT and you should see
    only the green lines. After you adjust the green, you will want to pop
    up another color over the green and align it with the green lines. Here
    are the modes:



    • Blue: INPUT button on the remote

    • Red: 0 button on the remote

    • Green: RECALL button on the remote

    • MENU: to remove an activated color and return to just green

    Again,
    to start with just green. Then activate one of the other colors (red or
    blue.) Now, move around and adjust so the lines all line up across the
    screen vertically and horizontally. If you want this precise, you will
    have to develop some kind of overlay, but for fine tuning, you should
    be able to eye it.

    When all the colors are properly aligned, you will see white lines.
    Don’t worry if it isn’t absolutely perfect - a small amount of fringe
    is acceptable and will go unnoticed. When you are done you will want to
    save the adjustments you made. To do this:


    1. Press PIP MODE on the remote twice (the first time it will as you
      if you want to save, hitting PIP MODE the second time does the saving

    2. The screen will blank briefly. Then you will see a pattern of
      evenly spaced green dots. You have successfully saved the settings once
      you see this.

    3. Hit PIP CH to go back to do more tweaking.

    At this point, the changes are saved. Turn off the TV and back on again to see the results with a normal signal.

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Try this site
www.hitachi.us

Posted on Aug 11, 2008

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1 Answer

How to install a hitachi tt-stk392-l20 convergence ic need installtion instructions and drawings


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 images of convergence problems.


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69189a5.pngSOLUTION #1

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

Or goto the site www.TvRepairKits.com for the parts and instructions on how to fix it yourself.

Jan 21, 2011 | Hitachi 43FDX01B TV

1 Answer

My Hitachi 43fdx01B went from a perfectly clear picture to one with red "ghosts" and very blurry. I my TV toast?


No,ur tv have a problems,known as a convergence problems,it dead.Very common problems on the DLP tvs design flaw.Most commom problems are R,G,B mis alignment,will not align,Colors shadows pictures,3D pictured and blurry?The tv convergence board require changing the 2 STK convergence ICS and some or all it resistors are dead,must changes to solved convergence problems.The shop will cost u $300-350 for parts and labors.

Jul 26, 2010 | Hitachi 43FDX01B TV

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Hitachi UltraScan HD Projection Screen 43FDX01B


The convergence board is on the fritz! See TVRepairKits.com and see if they have a kit just right for you!

Jan 12, 2010 | Hitachi 43FDX01B TV

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Hitachi projection model #43fdx01b.distorted color, blue off set. Half moon line at the top, taking top part of picture.


Ur convergence is dead.U need buy a convergence kit,U know how to solder right?Buy it at these websites.Tv Repair World.com or Ebay.com.

Sep 30, 2009 | Hitachi 43FDX01B TV

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Convergence on Hitachi 43fdx01B not working


ik04,ik05:stk392-110(replaced with:stk392-150)resistors:rk46,54:1,5ohm.,rk42,50:2,2ohm.,rk58:3,3ohm.,rk62:1,8ohm..try make order in "MCMelectronics".,partstore.,bdent.

Jul 09, 2009 | Hitachi 43FDX01B TV

1 Answer

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Replace convergence IC's with Hitachi Part # CZ 01341....
Check B+ resistors near Ic's.....2.2 2W .......

Dec 21, 2007 | Hitachi 43FDX01B TV

1 Answer

Problem in Hitachi 43" tv


Common failure called convergence mis-alignment.Needs
convergence IC's replaced by skilled technician.Good set
to keep going a few more years.............T.

Please rate this solution...................

Nov 15, 2007 | Hitachi 43FDX01B TV

1 Answer

Color alignment


It sounds like one of your convergence IC's has burned out and needs to be replaced. The defective IC will have to be replaced, the low-value resistors next to it checked and the convergence circuits realigned. If you do not have any experience working inside projection sets, allow a qualified tech to handle it for you.

Aug 31, 2007 | Hitachi 43FDX01B TV

1 Answer

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If you slap the set on the side and the colors shift and dont line up, it is most likely that one of your convergence IC's has cracked solder joints. It is also possible that the IC has burned out. The convergence IC's will have to be resoldered and possibly replaced, and that should be done by someone with experience in repairing and realigning convergence circuits in projection TV's.

Aug 19, 2007 | Hitachi 43FDX01B TV

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