Question about Mitsubishi WT-46809 46" Rear Projection Television

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Where to puchase STK392-570 ic

Who are a few reputble suppliers of these convergence chips? I was told that this matters. Thanks for your input, -tbmm05

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Posted on Feb 01, 2008

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1 Answer

Hitachi 50ux26b projection TV, the color lines separated...


It sounds like a convergence problem; either bad solder connections at one of the convergence Ic chips or a bad Ic. if this was helpful give me a vote----if one of the chips is now bad it will have to be replaced(usual thing is to replace all the convergence ic chips---most use two and a few 3.

Aug 12, 2009 | Projection Televisions

1 Answer

Where to buy the convergence board of a 55PP9502


You can find a replacement auto convergence board for a model # 55PP9502 from this major Philips part distributor at the following link:

Philips 55PP9502 Replacement Part Auto Convergence Board

Feb 02, 2009 | Philips 55PP9502 55" Rear Projection...

2 Answers

Convergence


If you cannot align, the ICs probably need to be replaced. You can check the input on feedback resistors in front of the ICs with an ohm meter. Some resistors may be bad causing your problem. Usually you would need to replace the ICs and bad resistors and do a full re-alignment to fix.

Dec 05, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Sony KP-46WT510 convergence IC's and checking resistors



You have 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 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. 

>>>Solution<<<< 

You need to replace the convergence chips and convergence resistors. 

Check the site www.TvRepairKits.com. They have put together a kit for your exact model. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc. Everything you need to fix it yourself. 

Oct 22, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Convergence issue


Yes you need to replace both convergence ICs they are STK394-250 ICs. You can get replacement ICs at the following link and they provide free instalation instructions with pictures so you can do the job yourself. They also have free online tech support in case you need more assistance and thats free to all their customers. Here is the link.
http://servicemanuals.vstore.ca/

Jul 01, 2008 | Mitsubishi WT-42313 42" Rear Projection...

1 Answer

60PP9352 60 in. Rear - Blue convergence issue


Replacing only the ICs MAY solve the problem, however, many people have also had blown resistors requiring replacement. Also the convergence board should be checked for cracked solder. If you replace the ICs and the resistors are shot, the ICs may blow again almost immediately, meaning you may have to do the repair twice.
You do not have to replace any transistors to fix this convergence failure.

May 28, 2008 | Philips 60PP9352 60" Rear Projection...

1 Answer

Convergence tp55e50


There are two Ics that need to be change to correct the convergency problem. These parts are mounted on a big heatsink.
Check this site for cheaper parts: //http://www.mcminone.com/product.asp?catalog%5Fname=MCMProducts&product%5Fid=STK392%2D110&CMP=googlepn

Jan 26, 2008 | Toshiba 55H70 55" Rear Projection...

2 Answers

Green tube not converging properly


Replace both convergence IC's.....STK392-110 X 2........T.

Nov 15, 2007 | JVC AV-48WP74 48" Rear Projection...

3 Answers

JVC 56wp30 convergence


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
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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.

Jul 30, 2007 | JVC AV-56WP30 56" Rear Projection...

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