Question about Panasonic PT-51HX41 51" Rear Projection Television

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How do you change a stk on this tv?

I am having the problem of the blue being curved at the bottom, doing the conversion didn't help. Going by what other people have asked and gotten answer for changing the stk is the next best thing. I see there are 2 of them in the back of the tv but how do theycome out. Don't want to mess it up any more.

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  • 8,617 Answers

They have to be desoldered and the new ones solderd back in. You can get replacement ICs STK392-110 with free installation instructions with pictures at the following link.
http://servicemanuals.vstore.ca/

Posted on Jun 17, 2008

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I have a Phillips 60" rear projection TV. recently


Tv have a problems known as a convergence problems,it is dead.The tv convergence board it is dead,that why ur tv picture are R,G,B colors lines mis alignments,have colors shadows picture or 3D picture lood alike?The tv convergence board require changes 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop will cost u like $300-350 for parts and labors.

Jun 01, 2011 | Philips Projection Televisions

1 Answer

I have sony tv kp-65wv600. It has problems. color and video is blurry, double vision, letters are curved


You have a convergence failure.

Convergence IC failure is very common. The solution is to replace the STK chips, check fuses and the resistors next to the STK chips. Replace as necessary and re-align via the service menu. It is about a $300 repair at a tv service center. You will need the service manual if you decide to do this yourself.

Try This:
When you notice the symptons Use this simple test to verify.
Go to the users menu on the tv.
Look for the converge option probably under setup or video setting. Converge is short for convergence to align the red and blue colors to the green color.

If you cannot move the red either horizontal or vertical, then the STK chip has failed for red section.
If you cannot move the blue either horizontal or vertical, then the STK chip has failed for the blue section.

If you can move both in each direction then the problem is something else.


Note if one STK chip fails, you replace both regardless

Feb 24, 2011 | Projection Televisions

1 Answer

Husband cleaned the dust out from behind tv which caused the blue curve not to line up in which he fixed but now how do you correct the blue curve at bottom of screen?


Check pico fuses in front and behing STK ICs STK392-110s Pico Fuses look like resisotors only they will be Green or Yellow 5amps,6amps 7amp pico fuses.

Nov 29, 2010 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Blue curving lines at bottom of screen


it is a common trouble with this set. the problem is a ic STK 392-110 in trouble. to do a good job change both 2.

May 06, 2010 | Toshiba 50H72 50" Rear Projection...

1 Answer

Letters and numbers are 3d and curved picture


Hello

red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..

Angel
Thanks...

Aug 02, 2009 | RCA D52W23 52" HDTV CRT TV

1 Answer

57H81Toshiba Blue Line not straight


You have a bad convergence output IC in the blue vertical circuit. On the bottom side of the chassis you will see a " V " printed by the heat sink. You will need to unsolder the heat sink and the 20 pins on the IC to remove it. Replace with STK 392-180 (sanyo) if possible or STK 392-150. Looking from the rear the heat sinks are big aluminum finned rectangles. There are 2 heat sinks one marked H and one Marked V. Even though you have a horizontal line your problem is in the vertical IC. Be sure to use a liberal dose of heat sink compound.

Mar 21, 2008 | Toshiba 57H81 57" Rear Projection...

2 Answers

Does the repair & cost recommendation solve our problem?


I hope they are not your only repair shop around ,if i where you i would call another repair shop ,that is way to high for repair cost if they are only changing out (2) STK-392-110s, cost 90.00 also if they happen to be STK 392-560s the price of those are only10.00 differents also price of resistors at most 4.95- how much is bench labor?550.00 dollars wow!!!!! I think you were trying to say convergence chips if im right all the above is true. let me know if this is what they are telling you.I do this same job at my shop cost (2) stks 110.00 plus tax 8.80 plus labor if i do not run into hard time to realine 225.00 total cost 343.80

Jan 21, 2008 | Hitachi UltraVision CineForm 55VG825 55"...

1 Answer

I have a big screen with three lines at bottom of screen


Likely to be the convergence power supply module. If you fix yourself it is simple provided you can get the module. Take the back off AFTER unplugging set The module is located above the main board on the left and the dynamic convergence board on the right. and come out by about 4 quarter inch nutdriver screws and has only two plugs one on each end of the module. You may find a good used one at your local tv shop or get them to order a new one or fix the existing module by changing the chip on it where the metal heat sink is. Chip number is STK 730-010 or STK 730-130. Either will work. Chip will usually fix it. If not the entire module must be replaced

Jan 01, 2008 | Proscan PS50670 50" Rear Projection...

1 Answer

Picture is Distorted, red/green/blue curves


you have bad convergenze this fault is common and need qualified person to change the STK ic's call repair man please don't forget to do excelent rate cause i here to help you regards

May 06, 2007 | Sony KP-51WS500 51" Rear Projection...

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