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Screen has blue/red lines across - Projection Televisions

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  • okckenbrown Jan 13, 2009

    I have a red line on screen about 6 inches from bottom, it used to be intermittant but now is there all of the time. Please help

  • tr_figaro May 05, 2009

    I have the same roblem. there was only one red line on my screen, now I have one red and one blue line on my screen. Please help me to solve it.

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  • 899 Answers

You need to have a conversion chip or chips replaced as well as some resistors connected to it.
but you should have the vertical deflection IC replaced as well

Posted on Oct 15, 2008

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2 Answers

My screen has blue and red lines across it. Now the red lines are becoming stronger and the screen flashes red until it turns off. how do i fix this?


This is for if the lines are thin and in the form of an arc across the screen.

You need to turn down the screen voltage for the blue and red CRT. I believe the access is through the front on that model.

1) Remove the front grill
2) There should be access panel you need to remove once you remove the front grill. This is where the screen voltage adjustment is located
3) Look for a small black box with six knobs on it. One row is for "Focus" and one row is for "screen". It will be marked, but probably need a flashlight to see which row it is. There will be a "R", "G" and "B" next to each knob to represent Red, Green Blue respectively.

4) Careful with the access panel removed, you are only inches away from very dangerous voltages.
5) slowly turn the R or B knob counterclockwise until the lines on the screen disappear.
Keep your hands away from everything else and only use one hand near the tv. put the other hand behind your back.

6) Once corrected, replace the panel and put the grill cover back on.

Feb 19, 2011 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Sony kp-ws500 has very fine red and blue horizontal lines across screen tried adjusting convergence, and it didn't do anything


Red and Blue Tube screen drive controls needs to be turned down some, tubes are over driving causeing drive lines.

Sep 16, 2010 | Sony KP-65WS500 65" Rear Projection...

1 Answer

Blue lines on screen...


Try Encompass Parts 1-800-638-3328

Dec 14, 2009 | Projection Televisions

1 Answer

KP57WV700 - Blue Lines Across The Screen


Problem #1) Convergence

Symptoms:
  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Nov 26, 2009 | Sony KP-57WV700 57" Rear Projection HDTV

1 Answer

Red and blue streaks across the screen top and bottom


The Convergence Amp IC's are bad. You should call a good TV Tech for this repair.

Jul 11, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Red line across top/blue line across bottom of screen


Adjust your convergence. Under menu I think its the last choice at the bottom of settings or picture menu

May 05, 2009 | Sony KDF-50E2000 50" HDTV

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.

Aug 30, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

2 Answers

LG Rear projection tv help... Red, Blue and Green horizntal line through screen.


The complaint may be dry solderig or yoke ,horizontal or vertical oscilator

Dec 29, 2007 | Projection Televisions

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