Question about Hitachi 61UWX10B 61" Rear Projection Television

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The tv all of the sudden went out of focus. I tried the majic focus but the projection tubes dont line up the blue one.does not align

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  • Hitachi Master
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The convergence ICs have failed. Very common problem with all rear projection Tvs.

Posted on Jun 22, 2009

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Posted on Jan 02, 2017

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Colors in left upper corner like a rainbow and fuzzy warped picture with lines that will run thru the picture from time to time, majic focus does not clear this up and I can not get the color set...


All projection TV sets have two very common problems. One is convergence ( 3D/Warped video) 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. 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.


7859b01.jpg

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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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

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

Jan 06, 2011 | Hitachi 50SBX78B 50" Rear Projection...

1 Answer

Convergence adjustment aligns red and blue picture tubes to align with fixed green tube. Green image appears to skewed (possibly out of focus) in one direction making it impossible to get red and blue...


Ur tv convergence are dead.U know how to solders?Must replaced the 2 STK convergence ICS,some or all it resistors.Tries Websites Tv repair World.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost u $300-350 for parts and labors.

Apr 04, 2010 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Red and blue color on TV is aligned but blurred, green is ok


U have a CRT Tube coolant problems.Tries Websites MCMElectronics.com,Tv reapair World.com to buy CRT tube coolant to recharge ur CRT.

Feb 26, 2010 | Sony KP-46WT500 46" Rear Projection...

1 Answer

My 50" Hitachi rear projection TV has a "shadow" of blue and yellow on all pictures. I tried the majic focus feature, which did not helpl


These chips are the culprit:

http://www.fixya.com/uploads/images/4790134.jpg

the convergence IC's

Replacing them requires a lot of soldering and a knowledge of circuit boards.

Is the TV worth saving? is it bright and clear? was it good (when it worked?)
ifthe answer to all of these is yes, then you have a few choices. If anyof these are not true, then you should just get a new tv.

Your choices are:
Ifyou are good at soldering, then you can attempt to replace the IC'syourself. (with all of the parts handy, it should take 1 hour)

Ifyou aren't good at soldering, then you can have a friend do it for you,or you can have a mechanic fix it. (tell them that its the convergenceIC's that went bad. (pay no more than $200 for the job).


Thesego bad on almost all projection tvs eventually. They overheat and burnout, causing the screen to go in/out of alignment and make wavy lines.

If you need more info on IC's, contact me.

Thanks for asking!
-Josh

Feb 25, 2010 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Samsung HCN5529W 55in Rear Projection can't Perfect Focus


hello What you have is a convergence problem. There is 2 modules inside your set that aligns the colors to have the same geometry and superposed . It is a common problem in rear projection tvs ,
You don`t have to worry about your blue tube , i`m sure it is perfectly fine, it just needs to be aligned through the convergence circuit.
Most often the problem is with those convergence modules that are faulty and need to be replaced.
Hope this will help good luck

Dec 07, 2009 | Samsung HCN5529W 55" Rear Projection...

1 Answer

Sony rear projection screen is red then tv shuts off


Can be 1 of 2 things. 1st the red tube just needs the voltage to it turned down. In the front of TV (you have to remove the lower front half of TV to access it) is a plastic square with 6 knobs. The from left to right top knobs control focus for blue,green red. The bottom knobs control voltage to each tube in same order (so lower right knob for red) turn SLOWLY to left to reduce voltage until excessive red and lines go away. If you over turn left or right set will turn off. If that does not fix it or if lines reappear then option 2 is that red picture tube is failing outright and needs replacement.

Jan 29, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Won't do HD, red for majic focus does not shift.


you need to replace both STK392-120 Convergence Ics. You can get replacement Ics at the following link and they provide free installation instructions so you can do the repair your self. Heres the link
http://servicemanuals.vstore.ca/

Jan 19, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Replaced IC'S and all resistors and focus problem still


Hello yorty,

You are the first person I have ever had to give this advice to. Let me explain, some folks "get lucky" and the replacement of the IC's and the simple alignment are usually enough, but in your case you have landed in the magical land of complete convergence adjustment.

You are going to have to perform a static and dynamic convergence alignment of your TV. in theory its very simple. here are the instructions:

First, you will have to adjust purity of the three CRTs (follow the instructions in your users guide or the schematic of your TV)

Second, you will need to set the static convergence of your TV (This will set the center of your tv and some of the side, top and bottom, lines)

Third, Once the static convergence is done you will need to set the dynamic convergence of your tv this will set the lines of the extreme top bottom and sides of your tv.

FOLLOW THE INSTRUCTIONS IN YOUR OWNERS MANUAL OR THE SCHEMATIC FOR THIS TV!!

Now for the bad news,

These three actions are all intertwined, That means that once you adjust one, you will have to readjust the others to match. Now this means that on an average, you will spend the next 8 - 16 hours doing the adjustment (8-16 hours are the estimated times for a TV technician to perform this task).

Now, I would suggest getting a TV technician to do the alignment becuase the task is very very tedious, and even most TV technicians hate doing it. I wish you well.

I hope this helps,

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

Jan 04, 2009 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Hitachi 61swx10B digital rear project


Yes it certainly sounds like you have the old convergence outpuyt IC's that have gone bad in this TV set. If you have the soldering skills, and know how to work on printed circuit boards, you can repolace both of the STK convergence IC's. If you do not, you can get the complete convergence board at http://www.ptscorp.com, and the Hitachi board number is JT22056. Good Luck

Mar 28, 2007 | Hitachi 61SWX10B 61" Rear Projection...

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