Question about Sony KP-43T90 43" Rear Projection Television

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Double image with mixture of color red and blue

Colors blue and red double image

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There are 2 convergence IC's that will go out over time that will need to be replaced. There may be a pico fuse and possibly some resistors that will have to be changed as well. There has to be quite a bit of testing done before hand, and quite a bit of setup afterwards so you may want to hire a technician to do it. Our shop gets around $250 - $300 to do a convergence job like this one.

Posted on Jul 30, 2010

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Posted on Jan 02, 2017

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1 Answer

Why does my hitachi rear projection tv has double image?


Are the double images different colors, such as red or blue or green? If so, the projection unit is "out of convergence, meaning the images are not superimposed on one another. That requires a convergence generator, also known as a video alignment generator.

Apr 28, 2017 | Hitachi Televison & Video

1 Answer

The picture is showing a double image and is distored.


The problem you are refering to is more than likely a convergence problem. The convergence circuit in your tv is controlled by an IC (integrated circuit) stk392-110 and it makes the 3 colors (red, blue, green) line up/converge together to create a clear picture. You'll know when this part needs to be replaced because the picture you see is 3d looking and possibly bowed on the top or bottom or on the sides in any or all 3 colors.

Jan 24, 2010 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Same problem w yellow on viewsonic pj550


Yellow is the mixture of 100% red and 100% green. what you may have here is a blue LCD failure in the machine. Try this to check. Open up PAINT and double click one of the colors on the bottom. now click add custom color. then in the RGB section put 0 for red 0 for green and 255 for blue. ok out of everything and fill the background w/ the blue. it should be a VERY intense blue, if its white or or kinda blue, you have an LCD issue

Apr 13, 2009 | ViewSonic PJ550 Multimedia Projector

1 Answer

Model# AV48WP30 Picture show double vision. Colors cant be adjus


you need to replace the convergence ICs and associated resistors you can get the repair kit at the following link for your model which contains the two ICs and all the feed resistors plus step by step instructions with detailed photos how to do the repair. Heres the link to the kit for your model.
http://servicemanuals.vstore.ca/product_info.php/pName/av48wp30-convergence-repair-kit/cName/convergence-repair-kits

Mar 05, 2009 | JVC AV-48WP30 48" Rear Projection...

1 Answer

How do i center the colors, red, blue and green?


Replace Both of your convergence ICs STKs, big black ICs.
STK392-560, also CK pico fuses around ics you may have 1or2 bad .

HAPPY NEW YEAR!

Jan 01, 2009 | Sony KP-61HS10 61" Rear Projection...

1 Answer

Color convergence red and blue will not line up/ double images


Repair involves some dis-assembly...replace convergence IC's
and inspect current limiting resistors for over-heat damage...
part # STK392-110 sub to upgrade STK394-160 Hitachi part # CZ 01341....you will need two....good solder technique required.
....................................................................................T.

Feb 08, 2008 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Double image 6 your old unit


KIT10 $29.50
Repair Kit for Hitachi convergence Chassis DP-14G
KIT10 Includes 2 pcs STK392-150 , 1 each of the following 1W axial lead fusible resistors:


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Nov 25, 2007 | Hitachi 61UWX10B 61" Rear Projection...

2 Answers

One of the primary color is absent


Hey Kuld.. Just asking... since both, your TV and your monitor have the same color issue...??.... have you been to the optometrist lately... (My Dad had this color issue with his eyes!).. he was red color blind..
Good luck,

Jun 20, 2017 | LG Studioworks 700B (White) 17 in.CRT...

1 Answer

Seeing double image in three colors


Its a convergence problem for sure ,,,if you cant move the red or blue (green is stationary) then your problem lies on the convervence module.. requiring ....mostly new output ICs like STKs your going to need a tech, for convergence is a common problem with rear projectors and requires patience and a expert to get it back just right. good luck

Sep 01, 2007 | Akai PT4298HD Rear Projection Television

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