Question about Panasonic PT-40LC12 40" Rear Projection HDTV

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Panasonic pt47wx42 green shadow

I am having a problem with my panasonic rear projection tv. I have had the convergence ic's replaced, all connections are good. The red and the blue seem to be fine, but the green seems to bleed and shadow the images. I used caps for each and also noticed that when it is just the green, its barely there and looks wiped. please, any help?

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6 Suggested Answers

  • 1 Answer

SOURCE: Where can I get parts?

STK392-110=CONVERGENCE IC USE TWO FOR REPLACECEMENT PART= WWW.bdent.com Product Details: The STK392-110 is a convergence correction circuit IC for video projectors. It incorporates three output amplifiers in a single package, making possible the construction of CRT horizontal and vertical convergence correction output circuits for each of the RGB colors using ust two hybrid ICs. The output circuit use a class-B configuration, in comparison with the STK392-010, realizing a more compact package and lower cost. www.partstore.com

Posted on Jun 04, 2007

  • 1 Answer

SOURCE: CONVERGENCE ic CHIP

I replaced the Convergence IC Chip STK392-110 for my PT-53WX42 Panasonic HD Rear Projection TV but I found burnt resistor(resistor #)R7053,R7002 & R7005.Can someone tell me the part# ,description,resistor value and power rating.I don't have the schematic to look .Thanks

Posted on Sep 08, 2007

Slinteriors
  • 8617 Answers

SOURCE: convergence for Panasonic 47"

Yes it is that set uses the same IC STK392-110 You can get the new ICs at this link and they will provide free installation instructions with pictures as well as free on line tech support instant messaging while you do the repair. heres the link.
http://servicemanuals.vstore.ca/

Posted on Apr 14, 2008

itvrepair
  • 28 Answers

SOURCE: I have problem with my convergence rear projection panasonic

most of the time you need to change the stk392-110 chips an ome resistors let me know if you need more help

Posted on Jul 31, 2009

Slinteriors
  • 8617 Answers

SOURCE: Panasonic rear projection-red convergence-moves horizontal only!?

The convergence ICs have failed. You will need to install a convergence repair kit. You can get the convergence repair kit for your model Panasonic from www.tvrepairworld.com which contains both of the Convergence ICs , the associated resistors and the cD with detailed repair instructions.

Posted on Dec 26, 2009

Ecollier2012
  • 3459 Answers

SOURCE: convergence panasonic HDTV 1080i bbe hi definition

The most likely cause is shorted convergence chips and possibly a few pico fuses.

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 a convergenece repair kit with instructions from the links below.

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

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*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

You can see some more examples and find a fix herebb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on Apr 18, 2010

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http://www.tvrepairworld.com/

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