Question about Hitachi 53UWX10B 53" Rear Projection Television

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Broken Board Help! Does anyone know where I can get a convergence bord for this model? Mine has a slight crack in it and the foil where the STK's go is in bad shape. any ideas?

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Posted on Mar 27, 2008

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Convergance chip


devices: Any Projection TV with a Convergence Amp board

If I knew which Mitsubishi Projection TV you're looking at, I could help quite a bit more. In general, the "convergence chips" on a typical Convergence Amplifier board are actually two STK's mounted to large heat sinks. "STK" is electrical engineering slang for "Convergence Amplifier Integrated Circuit".

Here's a helpful Solution archived at FixYa:
http://www.fixya.com/support/t4337218-image_bowed_line

You'll see in the photo that the STK on the PC board actually have part numbers on them that begin with "STK".

Dec 09, 2011 | Mitsubishi Projection Televisions

1 Answer

Picture is distorted blurry


Model number indicated is prone to convergence problems; red or blue shadows around writing or letters---

The model indicated uses two of the STK-392-570 convergence chips; they are located on a large metal heat sink with fins at the front of the middle board inside the set.

The board has to be removed to replace them.

A pair of the chips can be purchased on EBAY (where I buy mine) for about 15 dollars-----total parts cost to fix set should be under 25 dollars.

I also have repaired hundreds of these sets and have:

Start to finish, step by step instructions for this repair in this set; they tell you everything you will need and exactly how to do the repair.

I can if you request post the instructions here for you for FREE.

I will attach a photo or two of typical convergence problems so you know if it is your problem and a photo of a typical convergence chip.

If all this information helps you, rate this solution as very helpful here as I do this for free.

SD TECH



ee35869.jpgTypical convergence chip---yours will have stk-392-570 on the front of them.



bed570d.jpg
Red convergence skewed and off.



acffdfa.jpg
Convergence skewed---also a bad ic chip!


Let me know if I can assist you in any way.




Aug 13, 2010 | Mitsubishi WS-55809 55" 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...

1 Answer

Convergence problem with my LG RT-39NZ40RB,


Call Encompass Parts Distrubtion 1-800-638-3328

Feb 13, 2010 | Projection Televisions

2 Answers

I have a JVC AV-56Wp74 Blue power light on the front keeps blinking and the screen is black & makes a popping sound


There are a couple of common problems this model has--one is easy to confirm.


How handy are you if I tell you to disconnect the convergence board to see if it is your problem?

The blinking blue light means the set is in protective shutdown, and I know a fairly easy way to see if it is your problem and how to fix the set if it is.

Let me know if you need help--I am here to help people and l know a lot about this set.

SD TECHbd54bcc.jpg

Dec 16, 2009 | JVC AV-56WP74 56" Rear Projection...

2 Answers

Colors are skewed on Pioneer Pro-520HD


you can replace your the convergence chips on the convergence board. The board is to identify because it has a large heat sink. The convergence chips normally starts with STK... After you find the chip, you can buy online (ebay has a lot of listing) and costs around $10. If you know how to solder, it is very easy to do. I just replace the convergence chips on myPRO-610HD and it works perfectly.

Feb 20, 2009 | Pioneer PRO-520HD 53" Rear Projection...

1 Answer

Hitachi 43F300 convergence


Hello,
Do not replace whole convergence board.Because convergence data stored in old board cannot transfered to your new board.Means in your new board there is no convergence data.Unless you have the service manual and know how to get service menu.

I believe if you have convergence problem one of your IC (STK) is bad along with couple of small
Value resistance.

Dont forgat to Rate!

Good Luck
Dals123

Oct 21, 2008 | Hitachi 43F300 43" Rear Projection...

5 Answers

Convergence


Two boards govern this circuit . 1) convergence power supply board # 271860 2) convergence amplifer # 271861 . In most cases amp board is your problem . You might want to check the amp board for loose connections on it .Most of the times its the cable sockets on the borad have loose pins . This the board that has the metal heat sinks in a row of about nine of them on the board . Good luck

Mar 11, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

Green Convergence Problem... Is it Convergence adjustment or replace STK392-110 ICs


You really need solid state elctronic experience to work on a printed circuit board unless you want to take a chance an bugger it up. Yes its the STK IC's and Yes you have to take the board out and unsolder the IC, install new ones and make sure you put enough heat sink compond on the heat sink, and then resolder them and then check the fusable resisitors and then fire it up and do a professional alighnmentt using a NTSC grade cross hatch generator. Its best if you seek out a pro to assist you in this repair.

Sep 16, 2006 | Hitachi FDX Series 43FDX10B 43" Rear...

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