Sony KP-46WT500 46" Rear Projection HDTV-Ready Television Logo

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Anonymous Posted on Mar 20, 2012

How to go in service mode for tv sony kp-46wt500.i did change the stk ic,the convergence is good in the midle but bad on the side

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Sonny Berry

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  • Sony Master 8,617 Answers
  • Posted on Mar 21, 2012
Sonny Berry
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Did you replace the pico fuses on the G board there are two and usually one will blow when the old ICs fail and just replaceing the two ICs on the D board will usually not fix the issue untill the two pico fuses are checked and the blown one is replaced.

4 Related Answers

A

Anonymous

  • Posted on Jun 27, 2007

SOURCE: Sony TV KP-46WT500

Sony does not back up their product. No more Sony for me.

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A

Anonymous

  • Posted on Nov 02, 2007

SOURCE: KP-46WT500

Well after rechecking everything again and did some checking with help of some other emailers, I found a blown fues on the G board, that should fix my problem and maybe some others.
thanks

Anonymous

  • 5138 Answers
  • Posted on Dec 28, 2008

SOURCE: How to change convergence ICs in Sony KP-57WS510 TV?

Replace Both STKs convergence ICs big black ics with number on them STK392-560.Parts 1-800-223-3205

Anonymous

  • 3459 Answers
  • Posted on Feb 21, 2011

SOURCE: Where is the convergence IC

On the large heatsink.
Please do us a favor and rate this solution after reading.

Projection 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. Repair kits with instructions are also avail from www.TvRepairKits.com

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.


7859b01.jpg

e87380c.jpg
69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

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

Please do us a favor and rate this solution after reading

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Related Questions:

0helpful
1answer

Kd-46wt500 sony big screen colors dont line up is projectors goin out picture on tv is blurry pic looks stretched out as well

Can you verify the model number and see if its A KP46WT500 model? If so chances are just the convergence Ics ( stk 392-560 ) and pico fuses are the problem. There are 6 3.5 amp pico fuses directly beneath the heat sink fins on the D board ( where the Convergence ICs are located) Check those six pico fuses and also two 5 amp picos on the G board ( where power cord plugs in) if any of the picos on either board are open then the Convergence ICs will require replacement.
0helpful
1answer

My Sony KP-46WT500 has a yellow arc of color on the upper left side that never goes away even with plug in devices like Wii. It started about 6 months ago and has gotten worse over time. What can I do?...

Very common problems,through out the DLP tv life cycles could happen again again until end of the tv life itself.The tv have a problems known as a convergence picture problems,it is dead.Tv have any colors lines like R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?Yes?Than the tv convergence board it is dead.The tv convergence board must have it components parts replaced like 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The Shop will cost u like $300-350 for parts and labors.
0helpful
1answer

Image is showing in all three colors

Tv have a problems known as a convergence problems,it dead.The tv have colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures look alike.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors.These parts must be change on the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.
1helpful
1answer

BLUE SCREEN My sony KP 46wt500 hdtv ready rear projection has

Ur tv have a problem known as convergence problems.Ur tv convergence board must have it 2 STK convergence ICS and some or all it resistors to be replaced to solved convergencce problems.The shop will cost u $300-350 for parts and labors.
0helpful
1answer

Sony Projection TV KP-46WT500 Convergence Problem and Sparking

You may want to get some help with this install...goto www.tvrepairkits.com and ask for some help
0helpful
1answer

Problem with Sony TV; rainbow picture/convergence

no you should check the 4.7 ohm resistors located under the heat sink fins they usually will go open
0helpful
1answer

Color is messed up

sounds like bad convergance ic
http://www.techlore.com/forum/thread/18970/Sony-KP-46WT500-Convergence-Repair/
0helpful
1answer

Picture curved and three pictures - one per color

convergance amp ic are bad.
http://www.techlore.com/forum/thread/18970/Sony-KP-46WT500-Convergence-Repair/
can you confirm the make and model.
0helpful
1answer

KP-46WT500

Well after rechecking everything again and did some checking with help of some other emailers, I found a blown fues on the G board, that should fix my problem and maybe some others.
thanks
0helpful
1answer

Sony KP-46WT500 Convergence

try this mate: download the manual from here: http://manualshark.org/p/sony-4/sony-kp-46wt500-5918/ you need to get 2 Sanyo STK-392-560 IC', Also do not forget to install a new coating of heat sink compound on the back of the NEW IC's before you install them onto the printed circuit board. You also may find out that after you replace these two IC's, the set has no big difference from what it looked like before. DO NOT DISPAIR! There are probably open feedback or return resistors or Circuit Protectors around the convergence ICs. Take a multimeter and measure the plus and the minus 22volts DC on both IC's. The manual will show you where these points are. You need a low wattage soldering iron, and you can go to mcmelectronics.com and find one for less the 20 bucks. Then you will need some rosin core solder, some solder wick, and a few good hand tools. It is very easy to unstrap the wires going to the chassis and simply turn over the chassis and unsolder the connections., BUT I highly recommend, if you have had no or very little experience unfaltering or soldering on a printed circuit board, this is NOT the place to be experimenting with this. Please call someone who has the experience. Good Luck.
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