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Adjusting the color bulbs

Thanks for your reply on the color seperation -- is adjusting the color bulbs an easy thing to do by a novice???

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Its not the bulbs that u adjust. its the lenses ussually theres an access panel on the back when u open that up you should see three or four lenses. if you have somebody looking at the screen while u adjust it u might be able to get it closer but to have it dead on it might be best to call a proffessional. but trying it yourself first couldnt hurt anything,

Posted on Dec 04, 2008

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Replaced convergence ic's and picture is good but still no blue color to adjust in the convergence mode. the blue bulb is lit in back.


You may have pressed a wrong button when in service mode---it allows among other things to turn individual colors off like Blue--to make it easy to adjust red to green first.

Also take a look with set on into the Blue lens to make sure you have a image and it does not look like a blue flood light.

a last note: if you tampered with the lens (they have a wing nut on side that allows them to be turned you may have on the blue turned the lens so far there is no focus---for that lens--Did you?

May 30, 2012 | Samsung HCN4727W 47" Rear Projection...

1 Answer

Pink and green colors seperated images rounded off


If colors are skewed and will not adjust in the customer menu---you have a CONVERGENCE circuit problem.

This model (KP-51WS500) uses two of the STK-392-560 convergence IC chips. I just got home from fixing a similar model with the same problem.

Parts cost on Ebay for the chips and such is going to be less than 30 dollars total. Shops are going to get 300 or more for this kind of repair---and some will not do it in your home---the repair takes about an hour--I have done hundreds of them here in people's homes.

If you have questions or need advice, reply to this posting and I will try to help.

If this told you something that helped you understand, rate this solution as I do this here for FREE.

SD TECH

Nov 14, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Fuzzy picture and dark picture and color seperation when hot.


The colors seperating is a convergence problem, as far as being dim this may be related but the TV likely needs service adjustments.

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
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Nov 05, 2009 | Toshiba TP55H60 55" Rear Projection...

2 Answers

Green color seperation multiple images convergence will not fix


Your TV most likely a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

May 14, 2009 | JVC AV-48WP74 48" Rear Projection...

1 Answer

Bad color suddenly appeared on Maganavox 437S 52 " Flat Screen HD


it should have a year warranty get it in for warranty repair before the warranty runs out or someone tells you the wrong thing to go and the tv ends up as a big paperweight...

Dec 28, 2008 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

1 Answer

Color seperation on rca 1998 46" rear projection tv


projection tvs have seperate color bulbs that put out the same picture the lenses just need to be adjusted. they probably shifted during the move.

Dec 04, 2008 | Televison & Video

1 Answer

Sony kp-53hs30 rear projection TV


replace the two convergence ICs and a couple 3.5 amp pico fuses. You need STK 392-560 convergence ICs. You can get replacment ICs and pico fuses at the following link. with free instalation instructions with pictures.
http://servicemanuals.vstore.ca/

Aug 15, 2008 | Sony KP-53HS30 53" Rear Projection...

1 Answer

Color alignment:


Replaced one fuse, and the stk392-020 ic. The stk392-020 was not an original Toshiba part but the alignment is perfect and I didn't even have to make any adjustments.

Jun 27, 2008 | Toshiba TP43H95 43" Rear Projection...

1 Answer

Picture shows red/green/blue separatly and the images are curving at the sides


Greetings Mhsfl,

I also have a Mitsubishi rear projection and was having the same issues. You need to adjust your convergence. It is found in the setup menus on the television. What will happen is a big grid will come up and you will adjust the colors seperately until it looks like all white lines. It is something that a novice can do. My husband has actually become quite addicted to fixing the convergence on our television! It will need to be done periodically and particularly if you move your unit.

I hope this helps!

Thank you,

Dorothy
Go Ahead. Use Us.

May 05, 2008 | Mitsubishi WS-65513 65" Rear Projection...

1 Answer

Color Lamp


It is not as simple to replace as a bulb. This is a picture tube, and for a novice, no play it safe and have a tech have a look first. Just because the picture tube does not light up, does not mean the tube is bad. There could be several things in the solid state circuits that could cause this problem. Good Luck

Sep 30, 2007 | RCA D52W20 52" Rear Projection HDTV-Ready...

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