Question about Sony KP-46WT510 46" Rear Projection HDTV

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I have a sony skp46wt500  it is only 5 years old. i have a green wavy band on top and a red wavy band on the bottom.  everything within these bands are showing double vision.  there is red and green all through the picture and the picture is not clear.

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If you have the ORIGINAL remote, you can access the diagnostic computer built into your TV (neat, seems only SONY has it ). Download the manual (google it, it's out there!) and follow the instructions. Universal remotes WILL NOT WORK. Good luck, hope this helps.

Posted on Dec 01, 2008

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Well its fairly obvious that the convergence amplifier ICs need replacing... I believe STK392-560 ... if those are not available then the STK392-570s should also work.. Always remember to change the open pico fuses... also seen a coil open up before

Posted on Dec 23, 2008

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My tv has a color seporation on the screen, at the top it has a yellow band, and at the bottom it has a blue band. what could the problem be, and what part will i need? thanks kevin.


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

Jan 28, 2011 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Red band at top of tv


Hi,if its a an LCD RPTV it sounds like a light engine problem.Basically your tv uses 3 LCD chips that create the image .Each chip is like a tiny screen that blend together to get the colors and picture right.They are green,red and blue.When they start to fail you will start to get color discoloration or that red band you are getting.May the Lord Jesus bless you!

Oct 20, 2009 | Sony Projection Televisions

1 Answer

Red band at the top of tv screen?


Your optical block is going bad. Contact sony support. They will sometimes warranty these even after the 1yr warrany has expired.

May 11, 2009 | Sony KDF-E502000 50" HDTV

1 Answer

Green and purple band of color


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

Jan 31, 2009 | Panasonic PT-53WX53 53" Rear Projection...

1 Answer

Samsung HL-R4667 DLP There are about 6 vertical bands (usually all the same color) running top-to-bottom and within these vertical bands is a picture trying to come in. The screen behind the bands is...


needs a DM Board, prity easy to change yourself, if you order one, make sure you give them the version number off the Right side of the TV, will be somthing like SP01, To change - when you take the back off the tv, it will be on the left hand side, have to unplug 3 or 4 connectors, then take the plastic covering off, and it will slide out.

Jan 08, 2009 | Samsung HL-R4667W Rear Projection...

4 Answers

Color bands at the top of the screen - Sony KDF-50E2000


I have the same TV with the same problems. Sony has issued a recall for these tvs. Contact sony and will fix it for free or give you a discount on another tv.

Apr 02, 2008 | Sony KDF-50E2000 50" HDTV

1 Answer

JVC I'Art Pro, Color Fade


sounds like two separate problems. color fade ?
green gun/band = bad convergence ic

Dec 18, 2007 | JVC AV-56WP30 56" Rear Projection...

2 Answers

Band on top of Sony Grand Wega Model KDF-E42A10


Contact Sony Auth Servicecenter....Probable bad Optical Block
Assy. .....Part # A-1606-008-A at cost = 750.00+600.00 core..........................................T.

Dec 09, 2007 | Sony Grand WEGA KF50WE610 50" Rear...

3 Answers

PT 47 convergence IC's? box? both?


Always suspect the IC's first, digital convergence prblems are actually pretty rare IC's go everyday. I'd check partsore .com Generics usually work fine, they are probably STK392-110's but check to make sure.

Apr 16, 2007 | Panasonic PT-47WX49 47" Rear Projection...

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