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Panasonic tv (tx-80v02a)no picture (green line middle of screen)

Gday ohms, checked the cables running around the tube and they have good resistance,checked av cable all o.k.
any thing else i could look at ,thanks

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Like we have good power supplied to the picture tube itself ?

Posted on Aug 25, 2008

  • monk3ybidzness
    monk3ybidzness Aug 25, 2008

    like we have good power supplied to the picture tube itself ?

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I have a green tint on the screen. covering about 90 percent of the tv. it looks like a block on the bottom right corner. the very top and right side of the tv is fine. its prob about a two inch line that...


If you tried to clean the mirrors or someone else tried, there may be an object on one of the picture tubes. I've seen this happen. In one case I repaired a projection TVwith a piece of black tape across the red tube. It may have left the manufacturing plant this way. Please check and see if a cloth is laying on one of the projection tubes. If not, you have a contaminated picture tube, replace the fluid. Thanks for asking!

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My tv has a green shadow on lines or words on top that dips down in the middle of the screen


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.


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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

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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

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1 Answer

Have a rear projection tv 55pp9352. Has green halos around objects on the screen. Checked convergence and all red and blue line up except that on the outside edges the convergence crosses are somewhat...


yes, you need remplace the liquid in the picture tube green and blue, and need remplace 2 parties stk-392-120 and resistences 6.8 ohms at 1/2 watts

Jan 05, 2010 | Projection Televisions

1 Answer

Fads to green with spiraling lines


you may have a short in the picture tube. but from your description it sounds like the positor has failed. really hard from your description but if the positor has failed its very cheap to replace..farr64

Apr 27, 2009 | Projection Televisions

1 Answer

Projection tv 42" panosonic hdtv. to much green in the picture. Jeff


this unit may have a resistor on the green crt-board that has increased in value. check ohms(resistance) on all crt boards and compare to one another. these will have color bands that inicate value of resistance. you do not need to know color code, just match colors of resistors on each board then measure. you could also have weak green tube. turning down the master screen control located on the fous/screen block can reduce grn. drive. to adjust proper drive for each so the grey scale is correct, turn color to tv all the way down then adjust screen controls on block for black & white picture. when color is turned all the way down, you should not have any green, red, or blue over cast on screen. mch

Feb 20, 2009 | Panasonic PT-51G35 51" Rear Projection...

1 Answer

I have a green area in the middle of the screen of my panasonic television.


Good Day, tenaann29;
You either have to demagnetize the CRT (picture tube), 2. you have an object or fungus on one the projectors, 3. or you have a bad light engine. The problem will be determined on the type of TV.
Good Luck, big IRISH.

Aug 20, 2008 | Panasonic Projection Televisions

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Panasonic - Poor Picture Quality


There can possibly one problem. If you check on tube bords. There is a white plug that plugs into the tube. If you carefuly open that white plug, there is 2 silver contact point, called the spark. clean it with benine., but it must be clean. If you have to use small peace of sand paper ok. But afther that use clear Q-Tex (for Nails) and cover points. Let it dry and set will be ok.

Thanks

Mar 30, 2008 | Projection Televisions

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No picture, just red-blue-green lines through the middle of the screen very faint.


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Aug 22, 2007 | Panasonic PT-53WX54 53" Rear Projection...

1 Answer

Red spot in the middle of the screen


You most likely have a burn in on the surface of one of the picture tubes. What you need to do to confirm this, would be to take off the front screen, and with the set turned on, look directly into each one of the lenses, and see if you see a mark on the green or the blue tube. if this is the case, and I am pretty sure it is, the picture tube will need to be replaced, but this set is not a young thing, as the green faint lines is most likely a bad capacitor in the screen drive circuit. If the picture tube is indeed burned on the surface, most likely be better off buying a new TV set. Good Luck

Jun 25, 2007 | Toshiba 42H83 42" Rear Projection...

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