Question about Sony KP-51HW40 51" Rear Projection Television

Image is totally distorted

I have a Sony KP-51HW40 TV that is about 5 years old. Couple weeks ago, the image shown on the screen suddenly becomes out of shape. All three colors are out of alignment and the image is bended at the center - almost like a picture squeezed from top to bottom in the middle so that the top edge of the picture is bended down and the bottom edge of the picture is bended up. I read some articles on the net and thought it might be due to the convergence IC (STK392-560) got broken. I replaced the ICs (two of them), but the problem is still there. It would be greatly appreciated if you could provide some help.

haoye shen Jul 29, 2007

The attached is what the image looks like

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1,139 Answers

Did you also replace the bias resistors required when you converted from STK392-110 to the higher STK392-xxx modules? If I wer you I would go back to the orginal modules only new ones. Then I would also get a schematic to test the voltage levels on the chips to make sure they are the same as on the schematic.

Posted on Sep 09, 2007

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You will need the service manual to locate the blown resistors and or the circuit protectors in this TV set. If you know how to read the service manual, the schematic, and trace the circuit, know how to use and ohm meter and a volt meter, I am sure we can fix this set together. Let me know with an e-mail address so I can save you 30 bucks for the service manual. Good Luck

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You probably need to get a Sony TV Convergence Kit. More information can be found using the link below.

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Screen Looks Distorted/3D
Colors wont align
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You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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Yes, this problem can be fixed if you are handy with electronics stuff repair and can solder parts in circuit board easily with proper tools.
Replace convergence out ICs to get converge picture.
Let me know exact model number and brand of your TV for further info as question shows its Sony KP-51HW40 tv.

Jan 08, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

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Well repair of TV depends on your own skills and if you have any experience of electronics stuff repair then it would not be difficult. This kind of repair requires good parts soldering in PCB expertise.

Your Sony KP-51HW40 seems have problem with convergence out ICs (two ICs) that would be replaced. Both ICs STK392-560 are located on D Board and available in Part Store.
Thanks.

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1 Answer

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sounds like your convergence IC's have finally gone bad.. they seem to last 5 years on average.. have a look here: http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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Sounds like some kinda convergence problem. Can you post an image please?

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http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/

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I read it online that this is a very simple problem. It needs highvoltage splitter. I tried to open the front panel to see where the splitter is. However, I need some hint as to how to open the front panel. Good luck. Kiran

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I HAVE A SONY KP 57 LARGE SCREEN PROJECTION TV. THE PROBLEM I AM CURRENTLY HAVING: (1) ABOUT EVERY HALF HOUR THE PICTURE WILL GO AWAY AND DIFFERENT COLORED LINES WILL SHOW ACROSS ENTIRE SCREEN DIAGNOLLY....

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Image is totally distorted

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I HAVE A SONY KP 57 LARGE SCREEN PROJECTION TV. THE PROBLEM I AM CURRENTLY HAVING: (1) ABOUT EVERY HALF HOUR THE PICTURE WILL GO AWAY AND DIFFERENT COLORED LINES WILL SHOW ACROSS ENTIRE SCREEN DIAGNOLLY....

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Image is totally distorted

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Related Questions:

I HAVE A SONY KP 57 LARGE SCREEN PROJECTION TV. THE PROBLEM I AM CURRENTLY HAVING: (1) ABOUT EVERY HALF HOUR THE PICTURE WILL GO AWAY AND DIFFERENT COLORED LINES WILL SHOW ACROSS ENTIRE SCREEN DIAGNOLLY....

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KP-51HW40 51" Rear Projection Television

I HAVE A SONY KP 57 LARGE SCREEN PROJECTION TV. THE PROBLEM I AM CURRENTLY HAVING: (1) ABOUT EVERY HALF HOUR THE PICTURE WILL GO AWAY AND DIFFERENT COLORED LINES WILL SHOW ACROSS ENTIRE SCREEN DIAGNOLLY....

Open Questions:

sony kp-51hw40 sound, no picture, red lite flashes 5 times

Why is there sound with no picture, or black screen? LED flashes 4 times

my tv picture looks curved

Sony KP-51HW40 51" Rear Projection Television how to fix the blue screen?

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