Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television Logo
Posted on Dec 06, 2009

To much blue shade in picture

47" projecter,get blue shade in picture,tried to adjust convergence not working blue will not aline properly in the squares

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Anonymous

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  • Posted on Dec 25, 2009
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You may need to replace your STK chips in your convergence board. I just replaced mine due to ghosting. Seems to me asd anything that affects your picture quality is caused by bad STK chips. I purchased mine on ebay with a soldering iron solder and a solder ****** braid and paid 30.00 which includes shipping! Took less than an hour. The auction was for the STK392-010 but they had mentioned a 040 chip in the listing in error and sent me both sets. The STK392-040 is a better chip and works perfectly with my HC-P4752W. I had never soldered an electronic part in my life. I am an electrician and a plumber and master install tech. buy the chips. while they are being shipped to you, look at YOUTUBE for videos of soldering and desoldering using braid. You will get a good idea at what you need to do to fix tv! Also look for anything related to the convergence board for this model on YOUTUBE. Sorry so long but want to help as much as I can!

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  • Posted on Dec 30, 2009
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Dear friend as a standard check for screen and color imaging errors. always clean the dust away from the mirror, and the red, green & blue projection lenses. after you've cleaned the unit eyeball each projection lense, red then green, then blue while looking for a milky haze in the lense light glow. if the light on any lense is not clear but is hazy, then the cooling fluid that is inside of dirty the projector needs changing, and the internal lense surfaces must also be cleaned. you can purchase replacement cooling fluid from mcm electronics.com.

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Related Questions:

0helpful
1answer

The blue lense is off by 2 inches and can't adjust it. The picture has a blue shadow.

The tv have a problem known as a convergence problems,it dead.Any colors lines R,G,B mis alignment,have 3D pictures or colors shadows.The tv convergence board it dead.Require changing 2 STK convergence ICS and some or all it resistors to solved convergence problems.The shop,will cost u $300-350 for parts and labors.
0helpful
2answers

Blue convergence wont work

This is a common problem. Your convergence has gone out.

Common symptoms are...

1) 3D Video
2) Warped Video
3) Convergence menu does not adjust the red or blue correctly. 4) TV Chirps

Go here for a solution...

http://www.fixya.com/support/r2861627-updated_convergence_problems_amp
2helpful
1answer

Wavy colors across the screen and the color has separated. ghosts on picture -four eyes ect. I can't adjust the convergence.

This is a common problem. Your convergence has gone out.

Common symptoms are...

1) 3D Video
2) Warped Video
3) Convergence menu does not adjust the red or blue correctly.

Go here for a solution...

http://www.fixya.com/support/r2861627-updated_convergence_problems_amp
0helpful
1answer

Curved picture top an bottom

This is a common problem. Your convergence has gone out.

Common symptoms are...

1) 3D Video
2) Warped Video
3) Convergence menu does not adjust the red or blue correctly.

Go here for a solution...

http://www.fixya.com/support/r2861627-updated_convergence_problems_amp
0helpful
1answer

Center Target Blue Convergence and Contrast Adjustment

Yes there is a Service Code you have to have to get into Alinement menu and its a Dog following step by step to get in! (1) Turn set on cable (2) Turn sleep timer on 30 min (3) Press Action Twice exit menu 4) now tune to ch 124 (5) adjust vol half way down (6) Now Press vol- on front of TV ,now you should see a RED chk appear in upper corner (7) Now Power on remote hand unit and you shiuld be in menu Press cursor to move Mute locks where you want to aline ADJUST with vol-,Vol+ ch- ch+ for up&down back and forth.If you need anymore help let me know .

Press R-tune to change R-G-B
0helpful
2answers

Convergence adjustments

Replace both convergence ICs nuber STK392-040 that should take care of the problem. you can get new replacement ICs at the following link and they will send free instalation instructions with pictures so you can install the new ICs. heres the link.
http://servicemanuals.vstore.ca/
0helpful
1answer

Same tv but smaller

Sorry there is no reset for this alinement,you probly need your ics replace and complete convergence alinement ICs are STK-392-110s or 150s , I myself replace them with 180s.
0helpful
1answer

Color problem

Did you try alignment of color convergence in setting up. Try this
1 Press MENU
2 Select SET UP
3 Select CONVERGENCE
4 Select screen mode ZOOM this accesses the center convergence adjustment.Press set/enter
5 Use arrow keys to aline the red cross to the white cross.Press set/enter
6 Use arrow keys to alingn the blue line in the same manner. Once adjustment is complete press MENU to turn the menu off.
I hope this helps if you cant move the red or blue lines you face the same problem I face. I still havent gotton any solutions to my post about being unable to adjust the red line.You could also call Pioneer's help line 800-421-1404.
0helpful
1answer

Convergence images?

The blue picture tube of a projection tv is usually the weakest in ability to focus and in most cases loses its focus ablility before the red and green. Connect a cross-hatch generator to the rf inputs of the unit and check to see which areas are most out of convergence. The corners are usually the worst. HD will always bring out the slightest imperfections. If the unit was totally out of convergence, I would have suggested replacing the convergence IC'S.In my experience with rear projection, your problem is normal wear . You could conceivably improve the picture by adjusting the blue focus on the screen focus block. Scrivitron
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