Question about Hitachi 50UX57B 50" Rear Projection Television

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50UX26B Convergence or Ghosting problem

My Hitachi 50UX26B has convergence or ghosting problems, three years ago I fixed it @ a shop and now it came back again. I want to know if there are any circuit boards that are sold as 1 piece instead of replacing some IC's, resistors and other components ..The teck needs $380 to fix it which in my opinion is too high to fix an old TV. but if the price of a complete circuit board is reasonable since they are almost obselete then i would be interested in buying a board and replacing it myself. Please let me know if the board is available , where can I get it and how much do I expect to pay for such a spare part. Thank you

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New convergence pc board is worth $400-600 /repair the old because you probably won't find one and if you do the same thing will happen in time anyway,you know what you got and must ask your self .what will it cost to replace it at this time /shop around /compare prices and extended warranties////////////

Posted on Sep 08, 2007

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Posted on Jan 02, 2017

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1 Answer

How do i manully converge 50" Hitachi projection


You have to get into whats called DCAM mode to manually converge the set if you don't see a menu option for convergence. Goto the site www.tvrepairkits.com - they have a DCAM article on their tips page.

Aug 26, 2011 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Hitachi ultravision 50ux26b. Two problems. 1. In the top left corner it looks like a dogear with the picture behind it faded and the edges looking blue.This started shortly after a couple of moves...


All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or dead set) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

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. In some cases the TV will also not show any video. 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 pics of convergence problems.


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Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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69189a5.pngSOLUTION

You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

Apr 21, 2011 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Hitachi 50ux26b projection TV, the color lines separated...


It sounds like a convergence problem; either bad solder connections at one of the convergence Ic chips or a bad Ic. if this was helpful give me a vote----if one of the chips is now bad it will have to be replaced(usual thing is to replace all the convergence ic chips---most use two and a few 3.

Aug 12, 2009 | Televison & Video

2 Answers

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

Green cruve line


Good Day;
Suspect Convergence IC's STK4274, part Number 2003191. Replace all three IK04(red), IK05(green), IK06(blue).
Good Luck, big IRISH.

Aug 30, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Hitachi 50ux26b


Good day, moparsask;

You had this problem before and had TV into a 'TV REPAIR' shop and the problem came back and you want to repair it yourself ??
There is no known common fix for the TV, so I would recommend that if you want color back on your TV that you have a factory authorized service dealer look at your TV and have them give an estimate and confess their warranty.

I hope this was helpful, big IRISH.

Jul 25, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Hitachi 50UX26B V6J028894


Good day, joefrost;

Hitachi has LED’s, green ‘lights’ and a red light to determine what circuit may be the problem; after removing the back of TV, bottom only, plug TV back in and observe which LED’s come on …..BUT most important which LED’s don’t come on; locate and note number, EG; DP37 and etc.

Good luck, big IRISH. Ps let me know.

Jun 15, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Blue/Yellow in upper left corner


I have the same problem and now there is convergence problem with the entire screen, double images and ghosting ...i was told that some IC's are burned our ...etc..i'm waiting to see if they sell the entire board since the TV's are 10 years old... will let U know what i get as a response.

Jun 05, 2007 | Hitachi 50UX26B/27K 50" Rear Projection...

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