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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  • Zenith Master
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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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6ya6ya
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1 Answer

Convergence


did u do a repair in recent days
by replacing the convergence ICs?

Jun 18, 2008 | Toshiba 43A10 43" Rear Projection...

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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

Green and purple shadows in the left upper corner


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - TV makes a chirping sound.
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

Mar 05, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

My set is 10 yrs old. In the upper left and lower


Try adjusting the convergence. If it won't move see below- red IC in particular
This sounds like convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually charge between $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Oct 18, 2009 | Sony KP-43HT20 43" Rear Projection...

1 Answer

Bowed flickering green screen, black on bottom


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.

42d3683.jpg

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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.

Jan 25, 2009 | JVC AV-48WP30 48" Rear Projection...

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 | Televison & Video

1 Answer

Arching color wave on bottom left corner & also on top left corner(color changes)


Convergence amps are failing which is very common. Several hundred dollars for a repair.

Dec 26, 2007 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Red is distorted on upper left corner only


KIT10 $29.50
Repair Kit for Hitachi convergence Chassis DP-14G
KIT10 Includes 2 pcs STK392-150 , 1 each of the following 1W axial lead fusible resistors:


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Oct 17, 2007 | Hitachi 61SDX01B 61" Rear Projection...

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