Question about Zenith A36B41W 36" TV

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Color distortion red/green color blotch in upper right and lower left corners of screen. Color on other parts of screen to include upper left and lower right corners is normal.

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Move any speakers or electrical devices away from the set. It could also be anything electronic or magnetic. Anything near the set that generates a magnetic or electromagnetic field could be causing the distortion.

Posted on Jun 04, 2008

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Color of green in upper right corner and lower left corner


Hello; You probably have a CRT type set. Something has magnetized your CRT/Picture tube. The set has a built in degaussing system that will only work when you turn on the set when it is COLD ONLY. If after several cycles of turning on the COLD set and the green color hasn't gone, the circuit in the set for doing this has failed, OR you have the set near strong magnets, such as speakers. PUT ALL speakers at least 4 feet from the set and go through these off on COLD cycles. The deflection yoke on the picture tube could have moved due to Sony using crappy adhesives to hold the yoke positioning wedges in place. I am so glad to be done with Sony!!!!! John

Feb 13, 2011 | Sony FD Trinitron KD-34XBR960 34" TV

1 Answer

Both the the left and right have large color blobs, more intence at times, shows more on blk/white


There is a degaussing resistor that activates when tv is first turned on and purifies the screen so there is no color contamination, sometimes it will become defective or develope bad connections on the circuit board. The part looks like a box "black/green" and is located near the power cord. If it has stopped working it would explain the color blotches. To fix it! the part needs to be replaced or resolded back on the board and a degaussing coil used to give it the once over, tv tech carries one just for that purpose. The other possibility is if speakers are to close to the viewing screen the magnet will leave blotches and must be degaussed to correct it.

Feb 07, 2011 | Philips Standard (CRT) Televisions

1 Answer

Picture seems sunk in and the color distorted with doubleing effe


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 projeciton 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 photos of convergence problems.

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Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Jun 01, 2010 | RCA HD52W58 52" TV

1 Answer

Problem with JVC CRT TV (slim) with screen to have red color at the lower left (facing the TV) corner and a green color on the upper right corner of the screen. Sometimes while watching TV shows, the upper...


There is strong magnetic field around the TV. This may be due to the tower speakers or any portable radio kept close by.

Re orient the TV try switching OFF / ON at the intervals of 30 minutes. The built in auto de-gauser will correct the problem. In cable TV program if the picture is OK, nothing wrong in the TV.

Check with a different CD.

May 19, 2010 | JVC AV-21QMG3 21" TV

1 Answer

Sony Trintron KV-36HS500 TV color distortion


Sounds like the set is out of degausing, you will need someoen with a degausing coil to come and fix it. Should take all of 10 seconds and cost $100 or less. Let me know if you need more help.

Tim

Sep 11, 2008 | Standard (CRT) Televisions

1 Answer

Green blur bot-R and up-L corner and no audio


If a standard TV has color splotches in 1 or 2 corners of the screen, it is possible that a large magnet, such as a large speaker, is or was near the set and has magnetized the picture tube. The set has a built-in degaussing coil but it is small and will only demagnetize small magnetic fields. Make sure there are no magnets near the set and if the colors are still off, have the picture tube demagnetized with a strong portable demagnetizer. As for the audio, when there are audio output jacks on the back of the set then there is usually an option to turn the speakers off. Some sets have a switch somewhere and some sets have a setting in the audio page of the on-screen menu. Look for a switch or go into the menu, navigate to the audio page and look for a speaker setting (ON / OFF) and make sure the speakers are set to ON.

Aug 28, 2007 | Konka K2386U 23" TV

1 Answer

Green wave-like color distortion over reds


do you happen to have any speakers of any size within about 3 feet in any direction of the tv?? move them if so, I have large speakers about 5 feet from my tv at home and i still get some distortion once in a while with red and dark green streaks.

Aug 15, 2007 | Sony WEGA KD-34XBR970 34" TV

1 Answer

Screen is filled with a circular Red/Green/Blue pattern


The problem will be with the de-gausing circuit, this de-magnetises the tube when the set is switched on from cold, this is a fault you will need to get an engineer to look at ie, not a D.I.Y repair.

Mar 05, 2007 | Samsung TXR2675WH TV

1 Answer

Screen Color Looks Like a Rainbow


Good day.
The problem includes malfunctioning of you units deflection yoke, color circuit and failures in the chroma system.
Have it check by a repairman.


chris

Aug 04, 2006 | Toshiba 36A40 36" TV

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