Question about Panasonic PT-47WX49 47" Rear Projection Television

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Picture I went to turn on my tv sunday night, and the picture colors are all mixed together with the red, blue, green. And the letters that say what channel and so fourth are running up hill. What would be the problem, someone told me the conversion chip might have went out. Would that be true?

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Re: Picture

Sounds like it. Replacement of both STKs is required. (They should always replaced as a set).

Posted on Jun 08, 2007

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My tv screen when on turns yellow then after a while it will switch back to normal colors what can be wrong with it....

Televisions covered: all Projection with yellow picture, but not Projection TVs with a yellowish tint surrounding objects in a nearly normal picture.

Yellow = red + green
normal picture = red + blue + green (RGB). See illustration.


Fig. 1 Additive color mixing in an RGB monitor, or RGB Projection TV.

The circuitry powering your blue output, or the blue light engine itself is starting to fail.

Operating Theory:

The lamp module shines a bright light into the optical unit; there are a series of lens and baffles, and at the top of the light engine, a lens puts the picture into a mirror which is reflected onto the screen; All video and color is processed thru the light engine. Blue most commonly fails first, leaving a yellow picture.

Dec 26, 2011 | Mitsubishi WS-55805 55" Rear Projection...

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Signals to the tv from other sources and the image is P and G

Soon as though you have your wiring mixed up. Those leads, colors you describe are for Compnent Video signal....Red Green Blue. Now  the Others  are for Audio Visual signal , Yellow, Red, White... They are NOT compatable. IE: You cannot mix them. Check in your manual as to what  types of lead is needed how to wire it up.. 

Feb 01, 2010 | Projection Televisions

1 Answer

Letters and numbers are 3d and curved picture


red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..


Aug 02, 2009 | RCA D52W23 52" HDTV CRT TV

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If you still have red light , it means the temperature of the lamp is too much. Did you buy the original part number of the lamp.

Jul 24, 2009 | Projection Televisions

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TV picture is red.

Normal color picture is composed with 3 colors R-G-B (Red-Green-Blue). Picture turns Red means: Missing Green and Blue colors (many reasons: bad contacts, projector tubes dead, and other...). Try to give some "tabs" to diagnose ... I don't know what is the type of your Projection TV, how long you owned it, to have more idea.

May 15, 2009 | Toshiba 57H81 57" Rear Projection...

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54" Projection TV

Your green gun in our tv is misagligned/out of focus. Your tv uses red, green and blue guns that layer in different shades and mix to create the different colors. Your green is a little off so the colors aren't mixing right which explains the green haze and the shadows. A tv repair man can fix this problem pretty easily and it isnt expenisve.

Aug 28, 2008 | Akai PT4298HD Rear Projection Television

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Rca tv r52wh73 the picture is bowed at the top and bottom also the colors red green and blue wont match together as one picture

rca t v r52wh73 the picture is bowed at the top and bottom also the colors red green and blue wont match together as one picture

Apr 05, 2008 | RCA Projection Televisions

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RCA P46921. Just changed flyback.

First, this assumes nothing else is going on to cause it. Here's what I did. Go to the 'green grid' via the v76 menu and go through the alignment there. Notice that there are red letters, blue letters, and a green grid. While you are in this screen, adjust the red, green, and blue focus watching the individual color's item until they are in focus. If they won't focus here, they won't focus and you have something else wrong (what I do not know). Then, return to normal programming, then select menu on the remote, then screen, then adjust projection tv convergence both horizontal and vertical crosshare. That ought to get it.

Mar 16, 2008 | RCA P46921 46" Rear Projection Television

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Picture color - it is a blue and green picture- no other color- looks artificial

update your tv with a usb drive. worked on my phillips 60PP9200D/37. get update at phillips web site. solves many problems

Jan 18, 2008 | Philips 60PP9200D Television

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