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

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Convergence IC's I was having blured and concaved vision on the screen, so I replace the convergence ic chips, no change. What can I do next?

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Your symptoms sound like a pincushion problem. Do you have the service manual for for your set? If not you can get one instantly emailed to you at the following link. It cost just 12.99 and they supply free tech support to help you diagnose and repair your set. Here's the link in case you need the service manual.
http://servicemanuals.vstore.ca/

Posted on Apr 01, 2008

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3 Answers

Colored lines at top and bottom when tv comes on and seeing double vision in different colors at all times


If your tv is not a DLP the problem is in the convergence, try to adjust it using your original remote control go to the setting menu then to the convergence section. Adjust the red and blue convergence. you should move the red and the blue in up, down and left, right if this color does not move far enough your convergence IC is already defective. Replacing this convergence IC will solve the problem. In locating this convergence IC you should remove the back cover of your unit but be sure to unplug it before doing this. This convergence IC is attached to a large aluminum plate, it is the heat sink, and it has a marking of stk- ### followed by numbers. You can try to pull it out using a soldering iron and soldering pump but be careful you may damage the board and cause much problem to your unit. Or you can contact a technician to do it for you and save you from stress good day and best regards.

Aug 28, 2011 | RCA Televison & Video

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Convergance problem on lower half of screen.smeared red and orange double vision,but only on bottom ofscreen.top appears out of focus,but not double visioned.


Howdy,

The TV has a convergence problem; the IC’s for that circuit will need to be replaced. The part(below) Number is from Toshiba, they provide good advice on replacement parts. Make sure what type of IC's your TV uses first. The cost for this repair runs around $450.00 or more.

Replace the defective Convergence Output IC Part Number
23905094 (STK392-110) using the revised “T” version IC Part Number
23135090 (STK392-110T). When Convergence Output failure is
detected, it’s recommended that both IC’s be changed to the “T” type IC
version. Inspect the Convergence Output IC’s for the “T” type version as
shown in Figure 2. Replace the Convergence Output IC’s using the “T”
type version Part Number 23135090 (STK392-110T).

I hope this information allows you to resolve this issue.
If I have helped you, please help me, and rate this suggestion the highest FixYa rating. (Two Thumbs Up)
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If you need further assistance please comment to this post and I will try to help you further.


Thanks for choosing FixYA, Big Irish.

Nov 23, 2009 | Televison & Video

3 Answers

I have a Toshiba rear projection TV model # 50H71 for about a month the tv would randomly pop off (lose sound and picture) for about 45 seconds and then come back on now th picture is reduced in size by...


Good Day,
The TV has a convergence problem; the IC’s for that circuit will need to be replaced. The cost for this repair runs around $450.00 or more.

Replace the defective Convergence Output IC Part Number
23905094 (STK392-110) using the revised “T” version IC Part Number
23135090 (STK392-110T). When Convergence Output failure is
detected, it’s recommended that both IC’s be changed to the “T” type IC
version. Inspect the Convergence Output IC’s for the “T” type version as
shown in Figure 2. Replace the Convergence Output IC’s using the “T”
type version Part Number 23135090 (STK392-110T).

Thanks for choosing FixYA, Big Irish

Nov 22, 2009 | Toshiba TZ50V51 50" Rear Projection...

2 Answers

I have a HCL473W with a 'concave' screen effect on 2 colors??


You don't need to replace the whole board, regardless of which board it may be mounted on. The STK IC convergence chips alone are all that need to be replaced. You can order them from a number of different online sites. You can try Alibaba.com. If you have any more questions, feel free to ask!

Nov 08, 2009 | Samsung HCL473W 47" Rear Projection...

1 Answer

My Samsung SP43H3HT picture is blured in parts and writing on screen is duplicated. whats the problem?


It sounds like your convergence STK IC chips have gone bad. They need to be replaced. Good luck!

Nov 07, 2009 | Samsung SP43J6HD 43" Television

2 Answers

Panasonic 1080i


Try adjusting the convergence. If it won't move see below- (or hitting Magic Focus for some Hitachi’s)

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!

http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Oct 05, 2009 | Panasonic PT-53WX53 53" Rear Projection...

1 Answer

Screen has double images on both sides, picture looks concaved. tv goes back and forth in this mode from normal to concaved


IC chips are Failing, and or A few Resistors in the Convergence circuit. Commen problem for Projection sets!... OneGeo.

Jul 06, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Replaced ic chips and still have red convergence problems


convergence resistors they can often be burnt open when the ICs go out.

Aug 12, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

Convergence


Have you checked the resistors next to the ICs these sometimes go open when the ICs fail. also a fusible link may also be open. Check the resistors near the ICs and also check anything in that area that has a FLin its location number such as FL231 and etc.

Mar 23, 2008 | Toshiba 57H81 57" Rear Projection...

2 Answers

PT-53WX52


Your TV most likely has a Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

Dec 02, 2007 | Panasonic PT-53WX52 53" Rear Projection...

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