Question about Panasonic PT-47WX49 47" Rear Projection Television

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Convergence issue Our T.V. will not adjust properly.. The bottom part of the screen is looped upward. The top is fine as is the middle. It is the green + that is way out. I would like to know how to repair this myself if possible.. Cheers Bill

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  • Mcgreger64 Jan 05, 2008

    Mine is the blue Side that is wacked I have the know how just need the part and a diagram of what I am looking at with notes. Not whating to pay best buy 500 to fixit my model is a pt-wx47wx42f

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Bill,
If you are techno-mechanically inclined and can solder well....
1) Pull chassis..,push,turn and release HV lead to block...dis-connect block end only !
2)Replace STK392-110 IC's with Panasonic or upgrade to HITACHI STK394-160 ...Part # CZ 01341.....no generics !!
3)Check 2.2 ohm 2 watt B+ feed resistors next to IC's ( burnt ) ?
4)Reassemble..check alignment
.......................................................................T

Posted on Dec 31, 2007

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1 Answer

Mitsubishi WS-55805 CRT projection TV with


This problem is most likely caused by damage in the convergence output amp IC's; this model uses STK392-040. Fairly common for various fuses that protect the DC supplies for these amp IC's to open as well.

Mar 03, 2010 | Televison & Video

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My magnavox 51mp392h has a convergence issue. the


Convergence is dead.Know how to solders? Must replaced the 2 convergence ICS and all it resistors.Tries Tv repair World.com,Tvrepairkit.com to buy a convergence kit to repair it ur self.The shop will $300 for the parts and labors.

Feb 03, 2010 | Philips Magnavox 51MP392H Rear Projection...

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Blue arc and ghosting across middle part of screen.


Replace Both of your convergence ICs they are big Black ICs will have STK on them! Use STK392-150s or the 180s Better ICs Call Mats Electronics 1-800-628-1118

Dec 21, 2009 | Pioneer SD-533HD5 53" Rear Projection HDTV

1 Answer

I have a sony kp-41t65 tv acting like computer screen out of whac


Projection sets have two very common problems outlined below.

The first common problem is 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. The TV can also shut down when the convergence starts to fail.

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, RCA and others.

You can get more information and a DIY convergenece repair kit with instructions from TV Repair Kits using the link at the end of this article.

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

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped or bowed
*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.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

Nov 10, 2009 | Sony KP-41T65 41" Rear Projection...

1 Answer

Picture at top of screen, bottom half is black...middle of screen has horizontal red, green line which is slightly bowed upward. model # is GE 46gw948


Call a good TV Tech and tell him the Convergence Amp IC's need to be replaced. Should not cost over $325.

Jul 29, 2009 | Televison & Video

1 Answer

Toshiba rear projection 42h81 convergence problem


In that case the convergence Ic's are defective or "leaking" they must be replaced. these are the TDA's

Jul 09, 2009 | Toshiba 53H71 53 in. Rear Projection...

1 Answer

Can't set red convergence on 65" Hitachi


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

You can see more examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Dec 24, 2008 | Hitachi Director's Series 65XWX20B 65"...

2 Answers

Left top and right top of screen curled, bottom middle of screen has a hump to it


Yes you need to repair the convergence circuit. If you know how to solder and use a meter this can be fixed easily by yourself. If you call a repairman to do it, it will run you $300-$500 depending on your area. Let me know if you can use a meter and solder and we can move forward with repairing you set.

Tim nolan

Sep 25, 2008 | Philips Magnavox 51MP392H Rear Projection...

2 Answers

Warped Picture, Separated colors


Each color (red,green & blue) has an amplifier IC (STK-).
When there is a convergence issue,the first step is change both
IC's for reliability. Then check for open fuses devices,usually
pico fuses.Then re-check convergence alignment.......T.

Feb 07, 2007 | Philips 60PP9352 60" Rear Projection...

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