Question about Samsung PCN5425R 54" Rear Projection Television

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Cant get red to move at all when making alignments

Blue and green work fine with remote ,just the red wont respond to commands.

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Hi, you need to replace your convergence IC`s and possibly a couple of resistors in the convergence circuit, you may or may not need the resistors but you definitely need the IC`s replaced, unless your very proficient at soldering this is not a job for the do it yourselfer, if you bridge any of the pins when soldering the new IC`s in and you apply power your new IC`s are toast and they run approx. $15-20 each for originals, be advised if you do attempt this repair yourself DO NOT buy $8.99 generics they WILL fail in 30-90 days, any competent tech will not install them in your set, if you have questions still email away, video-tek

Posted on Feb 04, 2009

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Cant control the red convergence with the remote the blue and green are fine


This is a common problem. Its called a convergence failure. You can get all the parts from www.TvRepairKits.com

Your TV will commonly have one or more of the following symptoms:
  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted
  • No Audio or Video

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

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Aug 03, 2010 | Panasonic PT-53WX54 53" Rear Projection...

1 Answer

Have a projection tv...RCA model 61830BL. Had


Hi the green cross it cant move that the reference for red and blue adjustement ;just try to put the red and blue cross over the green pattern then quit/
if that doesnt work you probly have the stk-xxx ic
who control the color alignment ,are blow/
you will have to replaced and make the convergence
check if you have an auto adjustement for that most projection tv have one...
hope that help..

Mar 28, 2010 | RCA P61830BL 61" Rear Projection...

1 Answer

Picture is OK, but colors are off and there is a blue star background that shows on dark colors.


Hello, With most rear projections there is usually an alignment to do with the set up with your TV. This is so the red, blue and green projectors align together to give the correct colouring. This sounds to me what may be causing the outlining of the blue. This can also make it seem off colour. Look in the set up menu of the tv and see if you can find this alignment feature. Usually a cross will appear and you move a blue, red, and green cross with the arrows on your remote to align over the original white one. If this does not work, it may also mean that one of your projectors, that is the red, blue or green one may be failing causing the off colouring. Hopefully this alignment may fix it for you.

Oct 26, 2009 | Sony Grand WEGA KDF-60XBR950 60" Rear...

1 Answer

Alignment will not work corectly, still have blue and yellow show


Make sure the Size and Linearity adjustments are not cranked too high. This can affect the ability to move side to side. Center green first and then red and blue. Some pattern generators can produce a horiz shift. Also, check for a horiz start position adjustment. If blue is way off from Red and Gren then you have a bad amp.

Mar 23, 2009 | Zenith Projection Televisions

2 Answers

RED Convergence Alignment issue


Replace both STK392-110 Convergence IC's with Toshiba or Sanyo quality................No cheap IC's !!!......................T.

Aug 16, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

CONVERGENCE PROBLEM IN TOSHIBA 43H70


Replace both STK392-110 convergence IC's with Toshiba or Sanyo brand........no cheap junk IC's !!!.................T.

Aug 16, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

Convergence ICs


the green is half controlled by half of each of the convergence Ics meaning green horizontal is controled along with the red and green vertcal is controlled along with the blue Ics. So if you have replaced both Convergencs ICs the problem is most likely a resistor that is in the green circuit. You will need a schematic to locate which resistors are in the green vertical and horizontal convergence circuit

Jun 07, 2008 | Toshiba 55H70 55" Rear Projection...

3 Answers

Red convergence wont move


if the red line is blurry and you have adjusted the screen focus control and does not work then you prob have a bad red CRT or bad red CRT fluid.........

convergence STK have nothing to do with the red being blurry

Dec 09, 2007 | Mitsubishi WS-55809 55" Rear Projection...

4 Answers

Samsung HDTV


If you changed the ICs you need to adjust convergence, read carefully the instruction and alingn the lines using remote control commands. Is a long process. My tv loss convergence three times , i will never buy another samsung product. I told every body that i know that never buy another samsung product.

Oct 26, 2007 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Convergence


Replaced convergance power packs (2) stk392-110 check all 2watt resistor the packs, to enter the convergance alinment mode on the set. Using the remote control press and release the sleep timer button when sleep timer displays timer equals zero immediately press the display and V. status buttons at the same time.  If done quickly enough the service menu will appear once entered the careful not to does disturb or change any other settings press the number seven to enter the convergence alignment mode a full crosshair pattern will appear in this alignment mode you can adjust the blue and the red to line them on the green using the select and the number pad you can move to the next crosshair to align the boot to the green and then the red to the green when done pressing the muting button on the remote control will save your changes will take a little while to figure this out as you work with.  If you make an unwanted error pressing exit without hitting the muting button will restore your convergence to its previous  setting.  If you're green is off after entering the service mode press the number six on your remote control in this setting will be able to adjust the green only once that is done us the muting button.  Then enter button seven if need be to adjust the blue and the red.  Remember no changes have been stored until the muting button is pushed open this helps.

Oct 14, 2007 | JVC AV-48WP30 48" Rear Projection...

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