Question about Hitachi 53UDX10B 53" Rear Projection Television

1 Answer

The BLUE crosshair will not focus,

Hitachi 53UDX10B:
thus all of the BLUE in the picture is blured.
I had a convergence problem, replaced both chips and 1 resistor, the convergence lines up real good. All of the crosshairs move up/down and back/forth BUT, I'm looking at another trouble where the BLUE will not focus. The picture looks pretty good if I don't turn the BLUE up to high, but then I have slightly green in my black and white. What do I need to look at to fix this BLURED BLUE PROBLEM??
billhen

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  • billhen Feb 12, 2008

    case of the BLUE out of focus, maybe I'm adjusting a different BLUE control. On the Hitachi, in front, behind the speaker cover, all the way to the components there are 6 controls on a small panel. 3 controls mix together to make a good black/white screen. the other 3 controls focus each color. The green and red will focus (sharp) but the BLUE will not. turning the BLUE control from one end the other you can see where the BLUE is tring to focus. It will go from very bad focus, to try to focus, then to going out of focus once again. Could there be something wrong with a tube(gun)?

  • Anonymous Feb 19, 2008

    my tv has the blue coming from left corner across through the to center to the right,magic focus does nothing to help.















































    corner running across

  • wil Apr 22, 2008

    I have the same problem but with the green. have you noticed on the convergence screen with the other colors turned down just how bad the blue is? try it and let me know if is clearer in the center and worse the further out. Thanks

  • charles0911 May 11, 2008

    same onlt its green for me

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Go here
this is for sony but your should be close enough. you want to manually focus the blue gun.
please mark post fixya!

Posted on Feb 11, 2008

  • Cary Farah
    Cary Farah Feb 12, 2008

    yeah sounds like the tube is shot, try turning the gun level down ( should be the control above or below the focus) and then focus.

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1 Answer

I have a blue shadow on one side of my hitachi rear project tv I tried the magic focus button and it didnt help


Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


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

2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc

Dec 21, 2010 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Magic focus blue is fine, green and red are really blurry, tv picture is almost black and white. all bulbs are on.


Tv have a problems known as a convergence problems,it dead.Any colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures.The tv convergence board,the 2 STK convergence ICS and some or all it resistors are dead.These parts,must be replaced on the convergence board,to solved the convergence problems.The shop,will cost u $300-350 for parts and labors.

Sep 13, 2010 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Hitachi projection tv 53uwx10ba - the Convergence ICs were replaced. When the PDKP bridge between convergence board and 2nd board is plugged in, it makes a noise. Kept that unplugged, the picture is...


Did set have this problem before you replaced the STKS?

I know these sets very well. If problem is different in any way from before you replaced chips.......double check all soldering or one of the new chips may be defective.

The more you tell me the better I can help.

regards, SD TECH

Aug 18, 2010 | Hitachi 53UDX10B 53" Rear Projection...

2 Answers

Hello: I have a 53" Hitachi Rear Projection Television Mod. # 53SBX10B Ser. # V1103422 That seems to have a convergence problem ( red, green & blue blured images especially at the top of screen,...


This model should use two of the STK-392-150 CONVERGENCE CHIPS---(some use 392-110 chips--both are the same but the 150 chips are higher output and last longer) both chips and any bad resistors around them (most are low value and easy to test) will need to be replaced and the set adjusted.

If magic focus will not correct the problem---the chips are bad.


This can be a do it yourself job if you have some skills; I can tell you everything you will need and how to do the repair (TOTAL PARTS COST FOR A PAIR OF THE CHIPS ETC ON EBAY WILL BE UNDER 25 DOLLARS) AND this is much less expensive than what any shop would charge you.

I have done over 1,000 repairs of this type and know from hands on experience what is needed and how to get the best results.

Let me know by responding to this post if you have questions and if this solution told you something of value rate it as "very helpful" as I do this here for free.

REGARDS, SD TECH9a97cfb.jpg

Aug 11, 2010 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Poss. convergence problem with Hitachi 53UDX10B Ultravision


You have convergence problem. Either bad connections on ics, ics are bad or voltages to convergence circuit are missing. There are no bulbs in this set. 3 picture tubes,red,green and blue produce a picture than when alighned(converged) correctly on top of each other gives you a color picture.When not you get the effect you are describing. Frst you can try the magic focus in the menu.

Apr 20, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Magic focus works briefly, then the tv is out of alignment


You need to replace the convergence chips and possibly some of the convergence resistors. You can buy the parts online from various sources or you can get a complete kit with instructions from www.TvRepairKits.com

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

1 Answer

Is there a manual convergance on 53udx10b


Do not adjust any knobs as instucted in the previous thread if you TV have a convergence problem. Doing so will only make things worse. The blog does however show you how to fix other common problems with these sets.

Here are some of the most common symptoms and example photos of a convergence problem

  • 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

Mar 06, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Magic Focus does not fix the blue 57UWX20B Hitachi


you need to replace the convergence ICs they are STK392-110 you can get replacements at the following link and they send instalation instructions with pictures so you can do the repair yourself. You need to replace both IC they are both STK392-110 they are located on the large heat sink on the far right side of your Tvs' chassis Heres the link for replacement ICs
http://servicemanuals.vstore.ca/

May 20, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

PROJECTION TV HITACHI ULTRAVISION COLOR CONVERGENCE PROBLEM


it sounds like your blue convergence ic is getting weak you need to replace the ic's STK392-110 and you should replace both because when 1 is bad the other will go real soon. They are inexspensive at the sight I posted and you will also get free tech online support if you purchase them there.
http://servicemanuals.vstore.ca/

Apr 12, 2008 | Hitachi 53UDX10B 53" Rear Projection...

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