Question about RCA HD52W56 52" Rear Projection HDTV

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Three screens at once!

We are trying desperately to remove the three/split screen and get back to one! Somehow we have punched something on the romote or TV and have three identical views of the same thing... all three are thin and "bunched up" What to do? Jenro

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On this make and model to fix convergence problem replace FL231 400ma. this will fix convergence also it is located right in front of flyback.

Posted on Feb 18, 2008

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  • Expert
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This is a convergence problem. Go into menu, select setup, select convergence, and run auth converge. If there is no failure in the tv then this will correct the problem. This model does have chronic convergence failures and most times either the convergence power supply must be replaced. Occasionally the problem is the convergence amp pcb and rarely the deflection bd can cause the problem.

Posted on Feb 09, 2008

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1 Answer

No colour in bottom right corner


I believ you have an issue with the optical block on your set. Light produced by a high-intensity projection lamp enters the optical block and is split into three paths (one each for red, green, and blue) by a series of lenses, condensers, mirrors, filters, and/or beam splitters. Each color has an LCD assembly with polarizing filters and a liquid crystal microdisplay panel (approximately 1" across). On Sony's "3LCD" models, the light is transmitted through each LCD panel, and, on their "SXRD" (Silicon X-tal Reflective Display) models, the light is reflected off each SXRD panel. Finally, the three separately colored images are combined with a special prism into the final full-color image, which is then projected/enlarged onto the back of the screen by a projection lens.
The following annotated photo shows various parts on the optical block of a 2004 3LCD model KDF-55WF655 (note that the LCD panel cover has been removed):
dcramer531_82.jpg3
Either the block is starting to wear out or you have something blocking the lens, such a dirt or something has fallen and is blocking the lens

Feb 20, 2011 | Sony Grand WEGA KDF-60WF655 60" Rear...

Tip

How to remove moisture from between a Projection TV Screen.


You tried to clean your projection TV screen with windex and sprayed it onto the screen. Later you notice that there is liquid between the screens. How do you get it out?

First your screen is composed of three pieces. It may not look like it but there are three pieces of plastic making up the screen. If any liquid gets between them you will have an anoying problem.

You will have to remove the speaker grille to get to the screws that hold the screen on. Pulling gently on the side of the grille you should be able to get the grille to pop off. Move your fingers around the grille to continue removing it. Do not force the screen but pull on it steady.

Once off you should see the screws holding the screen on at the bottom of the screen. Remove all screws. If you have magic focus you will need to remove the back first so that you can disconnect the wires to the sensors. Removing the back is simple and only requires the removal of the screws around the perimeter of the back assembly.

Once this is done grab the screen on both sides and lift it straight up. You may have to tug to break it loose. Once off the screen can be removed from the frame by removing all the screws around the perimeter.

You should be able to separate the screens (there are three) with a razor knife and dry them. I would leave the screens apart for a few days after wiping the liquid off just to make sure there is no moisture left.

Reassemble the screen as it was prior to disassembly and use duct tape or black tape around the edge to hold it together. Place it back in the bezel and reassemble the unit. It should be good and have no moisture problems.

Thanks for using FixYa .

hardrocko

on Oct 28, 2010 | Televison & Video

1 Answer

Water has got behind plastic screen, can you remove and dry the screen?


sandiboat,

Your screen is composed of three pieces. First you will have to remove the speaker grille to get to the screws that hold the screen on. Pulling gently on the side of the grille you should be able to get the grille to pop off. Move your fingers around the grille to continue removing it. Once off you should see the screws holding the screen on at the bottom of the screen. Remove all screws. If you have magic focus you will need to remove the back first so that you can disconnect the wires to the sensors. Once this is done grab the screen on both sides and lift it straight up. You may have to tug to break it loose. Once off the screen can be removed from the frame by removing all the screws around the perimeter. You should be able to separate the screens (there are three) with a razor knife and dry them. I would leave the screens apart for a few days after wiping the liquid off just to make sure there is no moisture left. Reassemble the screen as it was prior to disassembly and use duct tape or black tape around the edge to hold it together. Place it back in the bezel and reassemble the unit. It should be good and have no moisture problems.

Thanks for using FixYa and for the great rating.

hardrocko

Oct 28, 2010 | Hitachi 51F59 51" HDTV Projection...

1 Answer

My Sony KP-57WS500 TV has curved horizontal white lines. You only see them when there is something dark on the screen. Any ideas?


You have 3 CRTs inside of your TV that create image. Blue, Green and Red. Looks like one of them need adjustment due aging.
Remove front grille. Than remove center "shielding" piece held by 4-5 screws. Behind this cover you will find little black plastic box that have 6 rotating buttons on it. Take you time to study them. There is three columns and two rows. Columns represent color, rows - "Focus" or "Screen". You need to locate "Screen" row of three rotating buttons. They will be marked "B', "G", and "R" for colors accordingly. Turn on TV let it warm up and try to figure out witch color is dominating others on your screen. Then carefully turn rotating adjuster counterclockwise using Philips screwdriver. Try to muscle-remember original position of screwdriver so you can turn it back to it.
Eventually you will find the right one, you will see lines dissapear when you reduce voltage and reappear when you turn rotating shaft back. Sometimes more than one have to be adjusted.
Try to have all three color to be present and visible but with no over saturating and no horizontal lines.
Put cover and grill back - and that's should do it!
Regards.
Russ.

Apr 06, 2010 | Sony KP-57WS500 57" Rear Projection...

1 Answer

3 split screens


are these three different color shadows. this is called convergence

Jan 05, 2009 | RCA HD52W59 HDTV Projection Television

1 Answer

Samsung hdtv HLP5085wx no image. Smelled something burning and sparking, turned off the tv. Tried turning it back on = have sound, NO image!


OMG! Dude, your screen is just plain fried. You don't need a new screen though, You just need a new bulb for it. See, behind the screen is a light bulb (unless your T.V. is plasma screen), sometimes two or three, and that burning smell was the bulb blowing (like when you need to replace a light bulb in a lamp or something). I don't know where you can find a new bulb, but once you replace it everything should be fine.

Oct 05, 2008 | Televison & Video

1 Answer

Replacing front screeen of sony TV projection TV


Hi, assuming you have an expensive sony screen to replace allready, it is fairly hard to do because to take the top off every screw you can see from the back have to come out on top of that the optical engine and circuit boards have to be loosened or removed to get at the last two or three burried deep inside (thanks sony) if you can get that far the rest should be a breeze, just separate the cabinet replace the screen and reasemble

May 19, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

Colors splitting.


max, go into "video menu" and find "convergence set-up", follow the on screen directions. Basically you want to move the "red" onto the green and then the "blue" onto the other two and the cross will turn white, once it turns white it is re-converged and your done, note: If any of the red or blue adjustments do not function then the set needs convergence circuit repaired, questions? e-mail me back, otherwise Happy New Year, BMW Rider

Dec 30, 2007 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Projection tv


I just saw your post, that is a permanat burn on the screen and there is suppose to be protection circuits inside this TV set to prevent this from happening.

Mar 21, 2007 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Dots on screen


Is the picture normal otherwise and those dots in the center? If so you have three burned CRT's.

Jan 08, 2007 | Hitachi 51F500 51" Rear Projection...

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