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Projection tv convergence repair. how to fix? I've

Projection tv convergence repair. how to fix? I've heard I need to replace 2 STK-392-570 chips. I'm hoping to find directions for how to replace them.

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Hi

Thanks for using FixYa. There are repair kits available which includes repair instructions with the parts, if you want to do it yourself, you can buy and repair it yourself.
Please accept the solution if the issue is resolved or post a comment for further assistance.

Thanks

Rylee

Posted on Oct 05, 2010

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Posted on Jan 02, 2017

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My picture has a red and blue seoaration that looks like an old 3d film


All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or dead set) 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. In some cases the TV will also not show any video. 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

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 get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

Feb 25, 2011 | Sony KP-51WS500 51" Rear Projection...

1 Answer

My 65 inch sony tv half the screen is having colors like 3 d


Your Convergence ICs have failed. It is very common on rear projections. The solution is to replace the STK chips, check fuses and the resistors next to the STK chips. Replace as necessary and re-align via the service menu. It is about a $300 repair at a tv service center. You will need the service manual if you decide to do this yourself.

Try This:
When you notice the symptons Use this simple test to verify.
Go to the users menu on the tv.
Look for the converge option probably under setup or video setting. Converge is short for convergence to align the red and blue colors to the green color.

If you cannot move the red either horizontal or vertical, then the STK chip has failed for red section.
If you cannot move the blue either horizontal or vertical, then the STK chip has failed for the blue section.

If you can move both in each direction then the problem is something else.


Note if one STK chip fails, you replace both regardless.

Feb 20, 2011 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Picture is no longer working properly. Picture is blurry and colors are all wrong. Ghost image. Happened all at once not gradually. What needs fixed mitsubishi 65" medallion series. appox 7 yrs old


Your Convergence ICs have failed. It is very common on rear projections. The solution is to replace the STK chips, check fuses and the resistors next to the STK chips. Replace as necessary and re-align via the service menu. It is about a $300 repair at a tv service center. You will need the service manual if you decide to do this yourself.

Try This:
When you notice the symptons Use this simple test to verify.
Go to the users menu on the tv.
Look for the converge option probably under setup or video setting. Converge is short for convergence to align the red and blue colors to the green color.

If you cannot move the red either horizontal or vertical, then the STK chip has failed for red section.
If you cannot move the blue either horizontal or vertical, then the STK chip has failed for the blue section.

If you can move both in each direction then the problem is something else.


Note if one STK chip fails, you replace both regardless.

Feb 19, 2011 | Mitsubishi WS-55819 55" Rear Projection...

1 Answer

Picture is distorted - colors are out of alignment on sides (ok in center) - end up with a convex look ,. Is this an easy fix? TV was working fine..heard Pop, and then this...


If convergence (see photos) it can be a do it yourself repair.

Repair involves getting at the two STK-392-560 chips this set should use and replacing them.

My guess here is the chips failed and took out one of the fuses that protect them.

Let me know if you have any questions, I am here to help.

Look at the photos and if they told you something you did not know, rate this solution as very helpful as I do this here for free.

SD TECH




d53cd4e.jpgf39f7aa.jpg



5ca0d49.jpg


Chips (2 in your set look like this but will have STK-392-560 NUMBER ON FRONT.)

a PAIR OF THEM ON EBAY (I use a seller there) under 14 dollars.

Sep 15, 2010 | Sony KP-46WT500 46" Rear Projection...

2 Answers

The tv looks like it is in 3d. when i try to adjust the convergiance the plus signs on the left are bent


do not play with this tv replace the stk ic chips and the resistors around the stk chips ,cant miss em about 2 inches big with heat sinks on them.

Sep 11, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Toshiba 65hdx82 convergence issues


check fuse resistors near STK, and broken PCB around digital convergence board (board in a metal box verticaly mount beside STK.

Apr 23, 2010 | Toshiba 65HDX82 65" Rear Projection...

2 Answers

65" rear pro. Convergence IC Repair


This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
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

Feb 18, 2010 | Mitsubishi WS-65809 65" Rear Projection...

2 Answers

I have a sony Projection TV KP46WT510 convergence issue. How can I fix it? I see fusy picture with red and bleu double picture. I tried the convergence fix in manual and it shows the issue but could not...


Your TV most likely a convergence 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.
Here are some photos of convergence problems.

3dc9420.jpg
645fba6.jpg
0dcec37.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Jun 13, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

TOSHIBA TV- HCN4226W convergence PROBLEM


I charge 285.00 at my shop ,so if you cannot fix it your self you are looking at repair anywhere from that price or more .You have 2 STK ics these are your convergence Chips .You would need to replace both of them.If you can solder you have it made.

Dec 17, 2008 | Samsung HCN4226W 42" Rear Projection...

3 Answers

Hitachi 50" 50GX30B PJTV


Solution:
Your TV has a convergence problem. Here are some of the most common symptoms.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in but stationary.
Here is a quick test....
Using your original remote go-to the tv settings then goto the convergence or magic focus section
Try to adjust the red and then the blue convergence.
You should be able to move them up, down, left, and right.
If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.
You can get a repair kit that includes all the parts from www.TvRepairKits.com.
They have put together a kit for the Hitachi TV sets.
The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself. Its a fairly easy fix on the Hitachi sets.

Oct 20, 2007 | Hitachi 50UX57B 50" Rear Projection...

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