Question about Pioneer SD-P50A5-K 50" Rear Projection Television

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Bottom half/ color separation and distortion of image/top half normal.

How do I fix the problem

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Sounds like you need to go into the setup and do convergence. Be careful if you place any speakers or devices that have magnets in them such as a vaccuum cleaner. Even just moving the television can make the convergence go out temporarily. There is a auto circuit that should take care of this if it is moved.

If you have no magnets etc close, then I would check the convergence.

Posted on Nov 03, 2008

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Wavy picture at bottom half of screen looks like two different colors, top half convergence looks good bottom half of pictute looksbad . Can it be vertical coil on two piture tubes not being drivendue to...


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou 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

Oct 26, 2009 | Pioneer SD-P50A5-K 50" Rear Projection...

1 Answer

Colours are getting out of sync, picture distortion


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

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

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

Jun 29, 2009 | Mitsubishi WS-55908 55" Rear Projection...

1 Answer

Red and green have separated. is this fixable?


yes this can be fixed
it is the convergence IC's that controls each color image alignment ,also other components(resistors , diodes , capacitors , ect..) in circuit with these convergence IC's(STK's) also need testing to see what other component has also failed or needs replacing.

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1 Answer

PHILIPS 60PW936317 - COLORS GOT DISTORTED AS I WAS WATCHING TV


Your convergence chips and convergence resistors are going bad. When they fail the screen colors will look distorted/3d looking.  Another symptom is one or more colors can't be converged using the convergence menu. You can purchase the parts over the internet. Just make sure you get Sanyo brand convergence chips and the correct flame proof resistors. You can also check the site www.TvRepairKits.com. They are working on a complete kit for this model.

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there maybe cold solder around the chroma section, or in the CRT board....

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1 Answer

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You have a convergence problem. Here are some of the most common symptoms. 

Screen looks 3D
One or more colors can't be adjusted when when using the convergence menu. 
Screen is bowed in but stationary.

Solution: 
You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kit for your exact model. The kit inlcludes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc. Everything you need to fix it yourself. Its an easy fix. 

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I am having the same problem hopefully some one answers us.

It's a Blue Convergence issue but how to fix it I am still waiting.

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1 Answer

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2 Answers

Picture separated on 1/2 of screen


This sounds like a convergence problem. This is a common problem that is usually fixed 98% of the time by re-placing the STK392-020 ic or STK392-110, and check the fuse devices on the covergence PCB. I'm sure the actual parts numbers depend on the peticular brand. Good Luck!

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