Question about RCA D52W20 52" Rear Projection HDTV-Ready Television

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Picture is not lined up

Auto focus does not work its like the lights are not lined up and tried to take it apart, but cant get the front screen off. i can get both sides off but the center is stuck. How do i get the center of the screen itself off? i need help to get tv back off to adjust projectors and need to know how to align everything

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Is this an itc222 chassis ? if it is then there should be a 400ma fuse next to the flyback transformer that has opened up. usually replacing it will fix the problem

Posted on Dec 22, 2008

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Two inch horizonal (black and white) line move from botton of screen slowly up the screen. Each line is about 24 inches apart. Also at times the picture will become dark with muted our of focus images. ...


The best way to determine what is at fault is to disconnect the Denon tuner and run the signal straight to the TV. If the problem goes away, the Denon is at fault.

May 17, 2011 | Hitachi 51F500 51" Rear Projection...

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When the screen is dark there are lines that run back and forth across the screen which is only noticable when pitcure is dark immage.


the screen bias needs to be turned down-ehind the front cover which is behind the grille there is a small black square about 3 inch square 6 little knobs sticking out 3 say in small letters screen and 3 say focus, don't adjust the focus just the screen for the coresponding color that shows up when picture is dark.best way to do this is darken the room and put it on video input with no signal if lines are white slowly
adjust 1 color after the other counterclockwise untill
lines disappear if only 1 color shows then only adjust the knob with the matching color. this is a very fine adjustment, to much will make your auto focus stop working. check it after you are done

Jun 20, 2010 | Sony KP-51HW40 51" Rear Projection...

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Just the blue on my rca projection tv is blurred. on the auto convergeance it says it cant read the sensor. on manual the cross hairs for the blue are oversized and blurred. i tryed tuning in the focus but...


Have you try adjusting your focus/screen drive controls to Tube R/G/B you have a focus/screen drive control block to adjust each Tube 3 controls ontop 3under them top ones are for Focus bottom is for screen drive.Red/Green/Blue Tubes.You might need to replace convergence IC, what is your Model number printed on back of TV?

Mar 24, 2010 | Projection Televisions

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Color lines out of focus


Best Solution posted on Apr 12, 2008 Asker's Rating 3%20stars_w.png
dc2eb76.jpg MikeNJ1964
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You have a completely different problem. The screen voltage for the blue picture tube is slightly too high on your set. This will put fine lines in the background of the picture, called retrace lines. This is very common and easy to correct. Remove the front speaker cover and the access panel behind it. Look inside and you will see a black box with six controls, each control having a little white glue on it. This is the Focus/Screen block. Three controls are labeled Focus and three are labeled Screen. The screen control in the center is for green but I am not sure if the screen control on the left or right is for blue for your model. With the TV on, set it to VIDEO 1 but do not connect anything to the VIDEO 1 jacks. This will produce a pure dark picture, showing any faint lines in the background. Choose one of the screen controls and increase (turn clockwise) it slightly. If the blue lines do not get brighter it means you are turning the red screen control, so put it back where it was and choose the other screen control. When you find the blue screen control, decrease (turn counter-clockwise) it until just when the blue lines are gone. If you want you can check that the red and green screen controls are set to just below the point where their faint lines are visible. When done, replace the panels and your picture will be back to perfect.
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MikeNJ1964 was exactly right! I have a Sony KP-65WV600 that had horizontal green lines that showed when the picture was darker. I had to remove 3 screws on the right and left side of the tv holding in the speakers...carefully pop out the middle panel from the clips holding it in....remove 4 screws from the cardboard in the middle and remove the cardboard. I then saw the six screws. The adjustment screws were the three below. I turned the middle screw until the lines dissapeared. I tried the left screw and blue lines appeared which I then adjusted away.
THANKS a bunch. SAVED me money!!!

May 15, 2009 | Sony KP-65WV600 65" Rear Projection...

2 Answers

Toshiba 57h81 green will not focus


Typically this is a convergence problem and can be repair relatively easy. Refer to this video to determine if you truly have a convergence problem. Also make sure you use your TV's original remote to make this adjustment.

Nov 15, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Have green bow in top right and green shadows all over


your convergence board needs to be replaced..its out.thats why the bow in the pic

Oct 30, 2008 | Hitachi 46F500 46" Rear Projection...

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Thin red horizontal lines across screen


replace the focus block or try to adjust the screen control on the focus block for red only. this will affect the white balance of the set so adjust it carefully. the focus block is located on the front inside the set. remove the speaker cover then the 4 screws on the front plate. the focus block is 3" x 2" black box with 6 adjustment posts three for focus and three for screen. adjust only the affected screen (R).

Mar 13, 2008 | Sony Grand WEGA KDP-57XBR2 57" Rear...

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Red duplicate image outline of picture.


you have lost red convergence. which ussally means one or both of the convergence amps need to be replace.. but it could be a resistor. does the red cross move up or down or side to side. how about the blue does it move in eather direction. this will let me know if both are bad

Jan 03, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

TOSHIBA REAR PROJECTION TV 42H81


you have a convergence problem that will require the replacement of the convergence amp ics.

Nov 29, 2007 | Toshiba 51H83 51" Rear Projection...

1 Answer

Sony tv KP-57XBR10W


Correct ! One set is for RGB focus and the other set is for
RGB screen voltage............................T.

Oct 05, 2007 | Sony KP-57HW40 57" Rear Projection...

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