Question about Hitachi 51SWX20B 51" Rear Projection Television

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3d and green line looping down

I dont know what to do but i value this tv still . its aprox 5 years old sound is good still .when i use a wooden probe and pushed on the heat srinks second in from the rear one the right from the rear the green looping line coming down from the top did start to wabbel a little / also during the majic focus the green top center block is veary low and it seams to hold operation for a while then a number 5 appears on the screen

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  • john berlinghof Oct 05, 2008

    my trade is in refrigeration service 25years im cofident enuogh to remove and replace resistors although im not shure as to where to watch for high voltage shock. i have worked on a few crt units and so fare no shocks. i downloaded the manuals .thanks for the url.

  • john berlinghof Oct 05, 2008

    i was hoping you mite give me an idia as to where to start looking for the problem area.eg witch board of the threee left center right. ? when the problem occured originaly the tv was on and there was a small pop sound . instantly the problem showed and hasnt changed at all since

































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  • john berlinghof Oct 08, 2008

    still looking for more help other then just a service manual. any sugjestion where to start the repair for this fault

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Hi,
Do you have your Hitachi 51WX20B service manual and let me know about electronics knowledge and repair know-how about tv to guide you further.
If you dont have service manual, download it form Here for free. get all parts of file and use WinRAR to extract file.

Posted on Oct 05, 2008

  • Shahid Electronics
    Shahid Electronics Oct 05, 2008

    I hope with help of service manual you can fix it as you have tech experience.
    How about rate this solution?
    Good Luck


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Picture is unstable (jittery) colors (especially red & green) are smeared. Picture seems to have aprox. 4 horizontal not in line boxes.


Ur tv have a problems known as a convergence problems it dead.Tv have colors lines like R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike?Tv have a dead convergence board,board must require replacing 2 STK convergence ICS and some or all of it resistors too.To fixed the convergence board to solved the tv picture convergence problems.The shop,will coat u like $300-350 for parts and labors.

Jan 31, 2011 | Hitachi 61SWX10B 61" Rear Projection...

1 Answer

On the right side of the tv aprox.3-4 inches wide down verical its black. It`s like the screen shifted left??


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. Repair kits with instructions are also avail from www.TvRepairKits.com

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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69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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

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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 23, 2011 | Hitachi 60SDX88B 60" Rear Projection...

1 Answer

Sony KP-43HT20 Projection TV


5 times blinks is error code for No Good White Balance and you said that picture is very green.
As you know TV is approx 7 years old so it needs RGB gain adjustments.
If you are TV tech person or know about TV repair, let me know to guide you further. Or contact local TV repair shop to fix it.

Oct 26, 2008 | Sony KP-43HT20 43" Rear Projection...

1 Answer

Showing


ok you have convegence problem. i suggest you read "fl231 problems under tips in tricks of my profile. this could be a simple easy inexpensive repair. i believe you can get to it under my profile. if that dont help then let me know i will help you further

Sep 20, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

I have a 65 inch toshiba projection tv about 5 years old that has a problem with the picture. the red blue and green lines are not aligning, giving it a 3d looking image. i was just wondering what it might...


Greetings fireftr2001,

You may need to perform convergence on the unit. This is something that needs to be done periodically and especially if you have recently moved the unit. You can normally find the convergence option in your menu system.

Thanks,

Dorothy
Go Ahead. Use Us.

Jun 24, 2008 | Projection Televisions

1 Answer

Hitachi 57SWX20B 3D Effect due to green light convergence problem


I'm trying to fix the issue on my 43FDX20B. So far, I'm able to move the lines up and down, but can't get the left/right motion to fix it. The attached link has the dynamic mode instructions, so you can correct this issue yourself.

http://home.comcast.net/~leebailey00/Hitachi_DCAM_Manual.pdf

The only thing I didn't have was the screen overlay jig the manual talks about. I decided to create one myself and use the screen as a beginning template. I went to our local hardware store and picked up some home window weather covering. The roll cost about $15, is a clear strong plastic and the template was very easy to create. I used a straight edge after I put dots on the plastic and measured the lines for being square and equal after I took it off my tv. Good thing is that if you don't like what you make the first time, you have a 25' roll to use to try again (ha).

Mar 01, 2008 | Hitachi 57SWX20B 57" Rear Projection...

1 Answer

JVC I'Art Pro, Color Fade


sounds like two separate problems. color fade ?
green gun/band = bad convergence ic

Dec 18, 2007 | JVC AV-56WP30 56" Rear Projection...

2 Answers

Sharp 28JW73H Green tint with lines across screen


Note: unmatched Make / model info........please clarify...T.

Nov 16, 2007 | Panasonic PT-52LCX66 Projection Television

1 Answer

Red green and blue lines


Most projection TVs have an option to refocus. For example, my Sony rear projection TV has a button on the front for focusing the lamps. Try finding this button or option in the menus with your remote. Projection TVs actually use three lamps, one red, one green and one blue. These need to line up exactly in order to form a good picture, and when they come out of focus, you see the edges which sometimes has the effect of a 3D image when you aren't wearing 3D glasses. Hope this helps!

Sep 07, 2007 | Panasonic PT-53WX54 53" Rear Projection...

2 Answers

Picture problem


Have you taken another set an hooked up the cable or sat. to the other tv from this tv? Try that first thing. Next try the video input like with a dvd or vcr. No lines ?? Then sounds like the tuner could be going bad in this set. if you still have lines then its a problem in the video or horizontal section in the tv set. There are no user serviceable parts inside this set so its anot advised to gointo this set to try to fix it. You can get a serious shock or cause more problems with the set. I know you said it is about 5 or so years old. Its at the point of do you wanna invest in this set?? If you really like the way it works then a tuner shouldnt (if thats the problem) run more then 2 to 3 hundred bucks with the labor. Good Luck

Jun 10, 2006 | Sony KP-61HS10 61" Rear Projection...

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