Question about Hitachi UltraVision CineForm 55VG825 55" HDTV

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Our 2003 65 inch Hitachi Ultravision projection TV only blue/yell

Recently our big projection TV only started showing programs in blue, yellow and grey's. seems to be missing reds and other colors. when we do the magic focus and other menu troubleshooting we can see the TV showing red but the picture doesn't. does this mean our TV is done or is it something that can be fixed. i was thinking it meant a bulb was out but maybe it is an electronic thing? what can we do to diagnose the problem and decide whether it is worth having it fixed?

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  • PeggyKirkham May 19, 2009

    My big screen only shows the colors blue and yellow. Can I buy the part and put it in?

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6 Suggested Answers

yankeegurl
  • 121 Answers

SOURCE: 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/

Posted on Apr 13, 2008

Slinteriors
  • 8617 Answers

SOURCE: 61 Hitachi Ultra Vision has double image

you will need to replace both convergence ICs they are STK392-110 you will also need six resistors (2) 2.2 ohm 1watt
(2) 1.5 ohm 1watt, (1) 3.3 ohm 1watt and (1) 1.8 ohm 1watt.
You can get replacemnet ICs and resistors at te following link with free instalation instructions. Here is the link.
http://servicemanuals.vstore.ca/

Posted on Jul 17, 2008

  • 1164 Answers

SOURCE: We recently bought the 65 inch ultravision hitachi

hello it could be screen burn

shaun

Posted on Jul 29, 2009

JOHNSONELECT
  • 113 Answers

SOURCE: ''Magic Focus'' doesn't fix ghosting problem

YOU HAVE CONVERGENCE PROBLEM THE PARTS NUMBERS STK392-110 YOU HAVE 2 OF THEM THEY ARE BAD

Posted on Aug 28, 2009

  • 1 Answer

SOURCE: hitachi ultravision digital 65

my tv is green the colors say that there 100 percent but the yellow is at 0 does that mean i need a new lamp, bulb or what?

Posted on Nov 30, 2009

Ecollier2012
  • 3459 Answers

SOURCE: my hitachi ultravision digital 43uwx10bis showing

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.

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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

Posted on Jan 13, 2011

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http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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