Question about Samsung HCN4727W 47" Rear Projection Television

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HCN4727 hour glass picture and colors off

I have a hour glass picture and the colors are off i could manually line up the blue but the red does not move at all. Could any one help me please.

Posted by mikeyts on

  • 1 more comment 
  • JAAK Feb 02, 2008

    I have the same problem. the words show double and the color are really bad out of line with each other. This happened while my son was playing a playstation game. the screen blinked off and then back on and this was the result.




  • Anonymous Mar 30, 2008

    I am also having a problem with my HCN4727 47" Samsung TV Television. The colors our out of sync and the picture is starting to form an hour glass from the top down. Some body help me out.

  • Stinky3 Jun 04, 2008

    This sounds like the same problem I'm experiencing. The picture is all distorted and the colors are out of convergence. I was watching tv, when it just happened out of the blue. Hopefully someone can come up with a solution.

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1 Answer

Ronnie Houston

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All of you are having the same problem with your convergence boards they need to ne replaced. about 250.00 in a shop

Posted on Sep 03, 2008

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I have a HDTV 524159 RCA, it has an hour-glass effect on both directions. On the left side, it hour-glass inward with red and yellow stripes and on right side blue and light blue stripes. It hour-glass...


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your convergence settings are moved and they need to be adjusted and if you adjust and still have the problem then its the problem of convergence STK ICS and they need to be replaced.

for adjusting the convergence please click this link this will help you how to adjust the red, blue and green settings in your tv.

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

for replacing the convergence STKics just click this link
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

feel free for further assistance.

thanks.

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Dear Sir:

Thank you for contacting fixya.

Please follow the steps below.


green is fixed so you have to move red and blue to green.
by using the remote you may find a simple converge function and open this and using arrow keys move the blue or red first to center of screen, repeat for other color you should see the lines moving toward a a white center point.

if the lines do not move with remote try manual ...menu on the set. if still no movement you have a problem on the convergence board and need a tech to fix.

A service manual will explain complex convergence to the detail .
but this might take hours to get it right.

Please feel free to get back to me If you need any further assistance.
Regards,
Mohammed.

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1 Answer

Color blue will not adjust on crt color conergence adjustment , picture on tv is double with blue on right side, auto/manual mode , the color blue will not adjust on right or middle side from side to side,...


This is a 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 charge between $200-$300

Sep 27, 2009 | JVC AV-56WP74 56" Rear Projection...

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Replace 2 convergence chips, will start with stk ###-###

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2 Answers

Converence


green is fixed so you have to move red and blue to green.
by using the remote you may find a simple converge function and open this and using arrow keys move the blue or red first to center of screen, repeat for other color you should see the lines moving toward a a white center point.

if the lines do not move with remote try manual ...menu on the set. if still no movement you have a problem on the convergence board and need a tech to fix.

A service manual will explain complex convergence to the detail .
but this might take hours to get it right.

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1 Answer

Convergence problem???


you must move red and blue lines into the green. change red to blue by useing the select button on the remote. till all convergance lines are white

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1 Answer

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.

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I need to see a picture of the TV set. send a photo to [email protected]

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Screen may have a hair line crack in it causing projection to be distorted. Inspect screen very closly with magnifying glass if necessary to insure no cracks. If crack is found replace screen.

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