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Hitachi 43fwx20b.replaced both covergence chips how do you align colors

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  • b442john Apr 25, 2010

    how do I adjust in service menu thats the problem don"t know how to get colors to align..I had a tv tech replace last time he still had to realign colors he did it with my remote.I just don"t know the steps to align colors

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Hi,
Convergence chips replacement should correct colors alignment itself if alignment was not changed in service menu.
Please make sure both convergence chips are getting supplies that is approx +18 volts and -18 volts.
Let me know if you have additional question.
Thanks.

Posted on Apr 25, 2010

  • Shahid Electronics
    Shahid Electronics Apr 25, 2010

    You need to have service manual in hand as service menu access procedure and service data handling is written in service manual.
    Without service manual, its not recommended to change convergence service data.



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1 Answer

Our hitachi 43fwx20b has double vision any ideas?


Yes, set uses two convergence chips, either STK-392-110 OR 120.

Both will need be replaced, I have photos and instructions if you tell me how much skill you have.

Let me know if I can help you, parts cost on EBAY under 20 dollars.

SD TECH

Oct 24, 2010 | Hitachi 43FWX20B 43" Rear Projection...

1 Answer

Hitachi 43fwx20b. Blue color will not reset in auto or manual focus. If it is convergence what and where do I need to look to locate them in the set?


the convergence is an automatic adjustment. if the auto isn't working after you tell it too from user menu,then the convergence amp is not working. this requires a tech or a good hobbiest. most of these amps are just ( stk's ) chips 3 in the unit you should replace all 3 making sire there is enough heatsink compound on them.

Jun 21, 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 Projection Color TV 43FWX20B - COLOR OFF


Check all cables,replaced all cables if more than couple years old.After that the same,ur tv have one dead color gun,require service.

Jan 01, 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...

1 Answer

I'm pretty sure the convergance chip is out. My problem is that I do not have the original remote. I have one made by Dynatron. I can't figure out which button is equilivant to Status, or ANT. Help please.


Almost any remote will work for this set if it is Hitachi--understand----if you have one of the two STK-392-120 CHIPS THAT THIS MODEL USES BAD--It will not adjust....

All of the Hitachi remotes will work but different ones use different buttons in the convergence mode--if the model is 43fwx20b it uses a Hitachi remote with the number CLU-4321UG... printed on the front of it.

If you get a different Hitachi remote let me know--I have a book from Hitachi that shows most of the remotes by number and photo and shows which buttons do what in convergence.

Let me know if you need to know how to replace the chips-----usually you can get a remote for this type of set pretty cheap on Ebay.....

Regards, SD TECH

Oct 15, 2009 | Hitachi 43FWX20B 43" Rear Projection...

1 Answer

Red color is not aligned


Try adjusting the convergence. If it won't move see below

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 charge between $200-$400

Oct 02, 2009 | Hitachi 43FWX20B 43" Rear Projection...

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