Question about Sony KP-43HT20 43" Rear Projection HDTV-Ready Television

1 Answer

Replacing The IC's

Need to replace the two ic's (stk392-560), can you explain how to remove them?

Posted by on

  • pounser Mar 14, 2009

    I have a kp57ws500 Sony and need a digital photo of the convergence chips, and what they should look like before removing the chips. I removed my chips and may have done it wrong when I resoldered.



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 3 Answers

Use a digital camera to take pictures of the chassis. Review the pictures to see if they can be used to reassemble the wiring plugs or restore the wire tie up positions. Remove the three screws that are located on the front edge of the chassis. After removing wires from their tie up positions or disconecting plugs the goal is to move the chassis into a position to expose the bottom side. Find a place to tie up the chassis using a piece of wire to one of the back screws to anchor this position. Use fresh solder wick and a 60Watt iron to remove the heat sink solder tabs switch to a 25 to 30 watt iron to remove the solder on the STK392-560 ic's. Remove the ic's from the heat sink and apply fresh heat sink grease before mounting the new ic's to the heat sink. Line the pins uniformly on the ic's if needed to install the ic/heat sink assembly. Use a flashlight or lamp to make it easier to see if the pins line up. Twist the solder tabs on the heat sink to secure it's position. Make shure all pins are present to solder in place on the bottom side.

Posted on Dec 06, 2006


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Why my proel. flash12a hi frequency ic does not work even when I replace the ic Tda7293

Replace with an other one. And then an other; till one IC works for you.
"Just contact any service technician. It is best for you"

Aug 16, 2016 | Televison & Video

1 Answer

Bright lines in the center of the screen the height is insufficient.replacing Vertical ic La7830,and 3 or 4 condenser no good.Need schematic diagram try to search for the jungle output.tnx more power

This is the vertical deflection IC of a CRT color TV. If you think it is fried then replace it yourself. For a datasheet of this part check the following link:

If the problem is the jungle output IC cxa2159s could be a problem and not start the power supply. This can cause an error code to know for sure.

Feb 10, 2015 | Televison & Video

1 Answer

I have an hp g4, my ic is burned out is there any replacement?

What you need to ask yourself is Why did the IC burn out. You may risk replacing the ic and some other fault with the motherboard burns out the new IC.

Jan 26, 2014 | HP Computers & Internet

1 Answer

I ve a nokia n72 phone the IC of which is damaged. As a result I am not getting a proper display. what is the cost of getting IC replaced?

Hello SD,

If you have diagnosed that IC is damaged. Then please visit any Nokia service center near by you.They will check it properly and replace the IC with original IC spare part. You will get the IC replacing quote from Nokia service center itself only.

May 10, 2011 | Nokia N70 Cellular Phone

1 Answer

My samsung rear projection tv has a problem with its convergence ic. i think theres two ics , but how do i tell which ic need replacing??

Always replace both once your going to the trouble each IC is usually less than $30.
This link will help show you what's involved.
convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail

Nov 13, 2009 | Samsung HLR5067WX 50" Rear Projection HDTV

3 Answers

My 15 year old Toshiba Televisiononly shows a narrow horizontal band in the middle of the screen. Sound OK.

Hiii fairley,

You aren't specsificly dercribe yor tv set.
For common TV horizontal problem ;i.e : White line accross the horizontal screen, horizontal band,'s can solved by replacing the IC Vertical/Transistor, and olso to replace the cap nearest the IC.

For common TV Vertical Problem :i.e : White line at the center of the screen (top to bottom),Vertical band,etc...It's can cure by Replacing the Horizontal IC/Transistor,and offcurse the cap's.

Tha's what all I know....

Hope can help you to solved the problem.



Jun 22, 2009 | Toshiba 32A33 32" TV

1 Answer

Tv doesnt come on after replacing verticaloutput ic

When you replaced the IC did you notice the polarity? There is a notch or an indent circle and it has to go back in the direction that the old was removed. Was it the exact replacement? Some substitutes do not work.

Feb 12, 2009 | RCA F32648 32" TV

1 Answer

Which IC is for red convergence?

you need to replace both because they are both linked together with the green as each IC controls one color fully and half the green, so when one IC fails that places a strain on the other IC through the green, so that one will soon follow. You need two STK392-120 ICs and you will also need four 6.8 ohm 1 watt resistors. You can get replacement ICs and resistors at the following link with free installation instructions with pictures so you can do the repair yourself. Heres the link.

Sep 08, 2008 | Philips 60PP9352 60" Rear Projection...

2 Answers

Convergence circut

Usually there are 2 convergence IC's, labeled STK392-110. Each IC has 3 channes. Each color needs to be corrected 2 ways, vertically and horizontally, so 6 channels are needed. usually one IC does red, red and haf of green while the other IC does the other half of green, blue and blue. If the red colors are off, change the IC closest to the red jack. If the blue is off, change the IC closest to the blue jack. If the green is out, you have a 50/50 shot at replacing the correct IC. It is recommended to use the STK392-150 when replacing the IC's so it might not be a bad idea to go ahead and replace both with the newer numbers.

Apr 11, 2007 | Hitachi 46UX24B/25K 46" Rear Projection...

Not finding what you are looking for?
Sony KP-43HT20 43" Rear Projection HDTV-Ready Television Logo

Related Topics:

300 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts


Level 3 Expert

102366 Answers

The Knight
The Knight

Level 3 Expert

75017 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a Sony Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides