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Posted on Aug 16, 2006

# Shadows I have a projection T.V.,samsung-HC-P4363W.There is a blue shadow to the right of the emage on the T.V..With some yellow in it.With a black back ground and wihte lettering ,the lettering to the left is yellow ,the center is wihte, and thelettering to the right is blue.

• justinslagle Jan 30, 2008

how do we access the coustmer convergence menu. I am having the same problem but trying to find out the problembefore i call the repair guy

• zara2402 Feb 22, 2008

Where is the customer convergence menu?

Roger my Tv also has a type of shadows. It's almost as if you're watching a 3D movies without the glasses

• Anonymous Aug 30, 2008

help

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### Anonymous

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• Posted on Sep 01, 2006
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You have a failure in the convergence circuit. To confirm this, go the customer convergence menu where it allows you to move red and blue crosshairs to align the colors. If the crosshairs fail to move then you probably have bad convergence IC's and/or some open resistors next to them. You can identify the convergence IC's as two large black chips mounted on a heat sink with screws. There will be an STK number on them, probably STK392-120 I think on that model (though not sure without the manual in hand). They will both need replacing with the same STK number as the one written on it. You need to check for open resistors too. They will be lined up infront of the IC's in a row and all should be < 5 ohm in value. You need to unplug all three CRT yokes from the convergence PCB when you measure these as you will read the resistance of the yoke and fail to detect an open resistor otherwise. If any need replaced they must be replaced with exactly the same value - they are critical.

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## Related Questions:

### Problem with the Samsung HC-P4363W 43 in. TV/DVD Combo TV shows partialy double vision in blue color.

The tv have a problems,known as a convergence problems,it is dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D picture look alike?Yes.The tv convergence board it is dead.The tv convergence board must require replacing 2 STK convergence ICS and some or all of it resistors too.Fixed the tv convergence board to solved the tv convergence picture problems.The tvs shops will cost u like \$300-350 for parts and labors.

### ISamsung TV model # HC-P4363W

Check the tv out?If the tv have picture,colors R,G,B misalignment,picture have colors shadows,look like 3D pictures.The tv problems is it have a convergence problems.Very common on a DLP tvs.Very much repairables.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts,must replaced to solved convergence problems.The shop will cost u \$300-350 for parts and labors.

Replace optical block Call Encompass Parts
1-800-638-3328

### I have a Samsung HC-P4752W and see yellow and bllue halos.

Have you tried to use the convergence function on the TV? If that has not fixed this issue then you have bad convergence IC chips. These chips are microprocessors that align the blue and red tubes with the green (which is stationary). This converges the three tubes to create the image that you see. Failure of these chips (usually from heat over time) is a common problem with projection  TVs. The chips are not very expensive; from \$35-60 for the pair. Replacing them involves some tedious desoldering of the old ones and soldering in the new ones. If you have some experience with electronics and soldering it is not hard. Shops will charge \$300 and up for this repair. If you want to do it your self post a comment bnack here and I can assist you further.

### I have a blue streak going horizontally through the top portion of the screen with shadows behind it. It also looks like the screen is "darker" or more yellow to it.

Your loosing you blue CRT. High voltage adjustment may cure. Horizonal like is called retrace line. Lack of high voltage allows this line to be visible

### Yellow and blue shadow on screen

the yellow illumination wire not connected properly and brown ground wire needs new location

### TV problem

It sounds like there is a fault on the chroma panel of some kind.

http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

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