Question about Hitachi 53UDX10B 53" Rear Projection Television

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Red gun appears to be smearing. Magic Focus doesn't help. Horizontal displacement of every other line to the right on the red channel. Tried other input sources to eliminate possible cable failure.

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  • Hitachi Master
  • 3,459 Answers

Your TV may have a convergence 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.
Here are some photos of convergence problems.

Red gun appears to be smearing. Magic Focus - 3dc9420.jpg
645fbRed gun appears to be smearing. Magic Focus - 0dcec37.jpgss=
0dcec37.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 Red gun appears to be smearing. Magic Focus - 0667c5f.pngad and should be replaced. This is a common problem.

0667c5f.pngSolution

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Posted on Jul 22, 2009

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1 Answer

Red doesn't seem to be working properly, but doesn't appear to be a bad projector.


The red CRT tube is failing. They are rated at 3000 hrs of operation. Check the red CRT face to see if there is a lot of dirt on it or has a discoloration on the inside of the coolant chamber. These tubes are scarce and expensive. You may want to consider a new TV.

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My TV is the Hitachi model 51UWX20B and tried using magic focus to line up red color. Picture looks like 3D with red off center. When using magic focus it gets to the red phase and it shows the number 5...


You need to replace the STK ICs which are Convergence ICs STK392-110 use 120s or 150s
also check the small ohm resistors around ICs . They are Big Black ICs and will have part number on them ,should be located on the Right hand side of Chassis .
Mats Eletronics has Parts 1-800-628-1118 Convergence IC Kit.

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Magic focus will not realign color. Red lines will not line up


Red Gun is out of alignment, need a tech to align color guns>

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43fdx15b Hitachi 42in red vertical lines magic focus inop for red


This is a 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 from $200-$300

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Magic Focus error green 5.


Here's a link to perform a DCAM convergence on your television and reset your magic focus. Instructions for the S series are halfway down but be sure to read the whole page. Best of luck.
Greg

http://www.hdtvoice.com/voice/showthread.php?t=3736

Jun 11, 2009 | Hitachi 51G500 51" Rear Projection...

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Convergence problem, I think


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Hitachi 51SWX20B Convergence problem


Solution:

Your TV has a convergence problem. Here are some of the most common symptoms.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in or warped.

Here is a quick test....

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

Try to adjust the 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.

Its a fairly easy fix on the Hitachi sets.

You can get a repair kit that includes all the parts from www.TvRepairKits.com. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself.

Jan 28, 2008 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

Out of focus


Rach, if it doesn`t move from green to red to blue in Magic Focus then there is a problem with the convergence IC`s and probably one or more support resisters. These components will have to be replaced, questions? ask away, BMW Rider

Dec 14, 2007 | Hitachi 57F500 57" Rear Projection...

1 Answer

Convergence not lining up


Sounds like the green is out of focus. If the focus control for the green does not control it enough to make the width the same as the red, then, the lens on top of the green can be adjusted to focus that tube. On the lens, there is a wing nut on a screw to loosen it and move the lens left or right a bit to help with the focus. Hope this helps.

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