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Posted on Dec 16, 2006

# Panasonic PT-47WX49 Convergence IC

Anyone would know which is the Convergence IC (integrated circuit) on a Panasonic PT-47WX49? I have a convergence problem, and I have try in vain to adjust the setting in Service Mode, so I thought to replace the convergence integrated circuit. Is this a common problem? Any help will be much appreaciate. TIA LP

• Luis Pinto Jan 22, 2007

cpown - I would appreciate very much if you could send me the PDF files to devx777 at hotmail dot com

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• Posted on Jan 21, 2007
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Usjavelin. I have the pdf files for the tv. I own the same one. I can send them to you if you'd like.

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my-video-file.mp4

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### Television has double images like 3D, and bottom half of screen has a concaved image.

Hi,
Please replace convergence ICs in tv, there are two big black ICs that has number STK392-110 mounted with big aluminum heat sink, replacement these ICs will solve your tv problem. Also check big resistor nearby these convergence ICs and replace if found burn mark or color faded.
On circuit board, IC location number is IC7001 and IC7002
Let me know if you have additional question.
Thanks.

### What is a convergence amplifier

The convergence amplifier is a three channel Integrated circuit which controls the convergence alignment of the three picture tubes in a rear projection TV. Your convergence amps are STK392-110 there are two of them also check the six 2.2 ohm 2watt resistors

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I would look for burnt resistors off the red IC, hopefully its not the DCU (digital convergence module) as most of these are integrated into the signal board. here is a tutorial i made up:
http://www.fixya.com/support/r5001731-convergence_diagnosing_convergence
Let me know if I can be of further assistance.

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your tv is under convergence problem usually we need to replace 2 big integrated circuits in the convergence section, at this point you may need a good tech to come over to your home

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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/

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Make sure your yoke plugs are clean and no cold solder joints around them. Let me know? Do you have a scope?

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Distorted is the classic sign of bad Convergence ICs and possibly the resistors that power them. Check the resistors right next to the ICs and replace both conversion ICs.

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Fox International, MCM, Andrews Electronics.........
Note : Buy OEM parts for reliability ......Panasonic or other..
stay away from generics...they won't hold up.....T.

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The two convergence IC's are generic part# STK392-110 and Panasonic part# C5AA00000203. Also check for burnt or discolored resistors nearby. Since this is such an easy repair,a schematic is not necessary....The hardest part is identifying the burnt resistors and aligning the green convergence in the service menu.

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One of the resistors in the circuit connected to one of the ic's has burned out or changed value due to heat caused by short in previous ic before it was changed.

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