Question about Hitachi UltraVision CineForm 55VG825 55" HDTV

1 Answer

Tv out of focus

I have a hitachi ultravison rear projection tv it has a 50" screen it looks like it is out of focus with shadowing around everything and when you cover the red light up the shadowing goes away. can you please tell me how i can solve this problem.

thanks william

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  • will200282 Aug 01, 2008

    i have a hitachi ultravison rear projection tv it has a 50" screen it looks like it is out of focus with shadowing around everything and when you cover the red light up the shadowing goes away. can you please tell me how i can solve this problem.

    thanks william

  • will200282 Aug 03, 2008

    The modle number is C50-FD3000

    the Serial number is F31000085

    hope this helps

    thanks for that

    William

  • will200282 Aug 07, 2008

    hey how's it going from what i can find the TV is a Hitachi C50-FD2000 - 50" Hi Definition Projection TV but for australia its call C50-FD3000 but they look the same. I had i guy look at it and he said that it was the red light going and said it would cost $2000 au. if you can tell me how to fix it or if it is worth it that would be great.

    thanks
    William

  • will200282 Aug 08, 2008

    it has the magic focus gets to the red and stops. I couldn't see a way to move it manualy.

  • will200282 Aug 08, 2008

    I couldn't see any way of reajusting it manualy, and yes it has the magic focus but when it gets to the red it shows 3 red lines and than stops. hope it helps

  • will200282 Aug 08, 2008

    thanks for that i'll give it a try



    will

  • will200282 Aug 08, 2008

    thanks for that i'll give it a try



    will

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  • Hitachi Master
  • 8,617 Answers

Your convergence ICs need to be replaced. Please respond to this same post and verify your model number and I will post the correct ICs for your model and post a link where you can get replacements with free instalation instructions.

Posted on Aug 01, 2008

  • 1 more comment 
  • Sonny Berry
    Sonny Berry Aug 03, 2008

    Sorry thats not a valid model number for Hitachi. Can you check the number again?

  • Sonny Berry
    Sonny Berry Aug 07, 2008

    It sounds more like the red convergence more than the Tube. Can you adjust the red convergence? Does your model have magic focus? If so does it go through the magic focus process or does it stop?

  • Sonny Berry
    Sonny Berry Aug 08, 2008

    Ok, the company I work for was finally able to get the service manual. You will need two STK392-120 Convergence ICs and (6) 3.3 ohm 1watt metal film resitors for RK42,45 46, 50, 53 and RK54. (1) 2.2 ohm 1watt for RK62 and (1) 3.9 ohm 1watt for RK58. get three 1.5 ohm 1watt as some bariations have the 1.5 for RK42 RK46 and RK53 instead of the 3.3 . and get an extra 3.9 ohm 1 watt as different variations have the 1.8 ohm for RK54 instead of the 3.3 . But you will be able to tell by the markings on those 5 locations. You can get replacement parts at the following link with free online instant messageing to help you through the repair, and they do ship to Austraila but they do have a shipping charge for overseas orders. But the tech support is good and its free.

    Heres the link.

    http://servicemanuals.vstore.ca/

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1 Answer

Periodic color scrambling - out of focus. Seems as though the different colors separate and get out of focus.


Ur tv is having a convergence problems,it dead.Colors lines R,G,B mis alignments,have colors shadows pictures or 3D picture look alike?The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts must be replaced on the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Jan 22, 2011 | Hitachi 50GX30B 50". Rear Projection...

1 Answer

HITACHI ULTRAVISON REAR PROJECTION TV HAS 3 OF EVERYTHING. IS IT WORTH FIXING?


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony2_bing.gif,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer2_bing.gif, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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1 Answer

Color shadowing on screen


I had similar symptoms about a year ago. Also came on sudden. The red convergence chip had burned out (poor heat sinking on this model Hitachi). Replacing the color convergence chips fixed it. ($50 for parts.) First, however, have you tried the "magic focus" function? That's explained in the manual, which is available online IIRC, but I'd have to look for the link if you need it.

Mar 02, 2010 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Broken screens on 53'' Hitachi rear-projection TV


I think it would likely work if you trimmed it evenly around the sides in order to maintain the central position. Focus may have to be adjusted but thats all.

Oct 25, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Shadows double vision


Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded over.


You can find more details and solutions here on Fixya at the following link below. Or click HERE

3d884ac.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dul

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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.

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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/

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It's a hardware malfunction. It can't finish the magic focus cuz one of the IC is burned. Need to be replaced and to check the resistors.

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1 Answer

Blue shadow


colored shadows indicate to me a convergence or focus issue. convergence issues can occur on one part of screen. and most recognizable around letters. this might could be adjusted by a technician

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