Question about Samsung HLN467W 46" Rear Projection HDTV

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Samsung HDTV 47" -- distorted picture

Blue will not align and perfect focus will not work

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  • cookienmax Apr 30, 2008

    HCL4715W

  • Vista Electronics May 11, 2010

    Please verify your set model number...............T.

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Replace blue convergence amp STK392-040 with OEM first
quality ONLY = no generics ! I use Panasonic part number
C5AA00000107..........................................T.

Posted on Apr 30, 2008

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Picture is fuzzy and colors are distorted


You will probably need to replace ALL of the CRT's and do a Full Convergence Alignment by a very experienced tech. Never replace only CRT as it will be brighter than the other two CRT's.

Apr 08, 2010 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

My convergence wont adjust on the blue and have no blue in screen


This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D2_bing.gif
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Feb 20, 2010 | Samsung HC-R4755W 47" HDTV

2 Answers

I have a blue and yellow shadows in my picture and when i use the perfect focus all the colors are in line except the blue.


Sounds like the STK packs are bad. Maybe change convergance amps along with protect fuses or low ohm resistors on the PCB

Oct 13, 2009 | Akai PT5598HD 55" Rear Projection...

2 Answers

RED CONVERGENCE SCREEN PATTERN BOWING AND CAN'T ADJUST


The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jun 13, 2009 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Distorted Color and geometry of Picture


replace stk 392-110 ( or stk 392-150 same number) , check resistor 2.2 ohms for open or burn beside STK IC's

Apr 13, 2009 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Samsung HC-P4752W 47" projection TV distortion & yellow?


I think you have a fault on the chroma board and on the picture frame board. If you can trace it yourself try these two locations otherwise call out a competant technician. hope this helps.

Sep 30, 2008 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Replacing Convergence ICs


As long as you can solder you should be okay, however i would suggest getting your ICs at the following link because they provide free instalation instructions with pictures on how to remove and replace the Convergence ICs. heres the link.
http://servicemanuals.vstore.ca/

Apr 26, 2008 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Picture problems and need service manual.


http://www.justmanuals.com/samsung-projection-receiver-hcr4755wx-parts-service-p-25530.html

$9.99

Apr 19, 2008 | Samsung HC-R4755W 47" HDTV

1 Answer

Blue color problem


same here, fuzzy blue when trying perfect focus, all other colors are sharp. I have the 2 STK392-040 package

Feb 24, 2008 | Samsung HCN4226W 42" Rear Projection...

1 Answer

Image


Samsung parts for convergance problem
http://www.partstore.com/Part/Samsung/Samsung/BP9500142E/New.aspx

Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
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/

Jan 29, 2008 | Samsung HCM5525W 55" Rear Projection...

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