Question about Mitsubishi WT-46807 46" Rear Projection Television

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Tv color fading...

The colors are fading. It looks like im watching the shows in black and white.

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  • AZScuba11 Oct 13, 2008

    my colors are not that bad yet but they are fading.

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Change the concergence stks

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Posted on Oct 28, 2008

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I have what I think is a Hitachi 55 inch ultravision rear projection TV that is 12 years old. I think the model is 55UX58B. The color goes out and it becomes black and white. It comes back after a few...


When the tv is it totally black and white and the tv picture are good and clear wright?when the tv colors are fade in and out are clear up and when the tv picture it is in colors it is look good normal picture wright?Tv have no shadows of any kinds of colors when picture are good in colors wright?Yes,take ur hand make fist or take a wooden hamer bangs all around the tv bazel frame if the tv colors come back or tv stay in colors it is have good picture in colors.Tv it is still good just have components parts are cold soldering or CRT colors guns R,G,B just require resoldering works only.

Aug 22, 2011 | Hitachi 50UX57B 50" Rear Projection...

2 Answers

Color


U hear grinding noises,squiling noise,before colors fades in&out,turn to Black&White picture,than died?Yes,than ur DLP tv have a colors wheel,it defective,require replacing.The colors wheel is spinning off of it motor axis.The tv tech,should be hire for changing the tv colors wheel.

Jul 24, 2010 | Sharp 65DR650 65" Rear Projection...

1 Answer

Color is terible and can fix it


This DLP tv have a colors wheel.Ur tv colors wheel is dead.When u have black & white picture,colors fade in and out.The tv make loud squiling or loud motor noises.All these problems are related to the colors wheel.Hire a tv repair Tech. for this job,because the colors wheel,require take out alots of machanical's parts out even before to get to the colors wheel to replaced it.

May 29, 2010 | Samsung HLR5067WX 50" Rear Projection HDTV

1 Answer

Color is horrible basically black and white


Ur tv colors wheel is dead,colors wheel is the problems,must be change.When the tv picture are black&white,colors fade in & out,loud squiling and motor noises.All these problems,indicate the colors wheel it dead,require changing.Hire a tv tech.for this job,because the colors wheel replacement require to take out alots of machanical's parts even able to get to the colors wheel to replace it.

May 29, 2010 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Everything that is supposed to be black is showing


Hi,It sounds like a problem with the color wheel or DMD board. The color wheel is a rotating disc that has a gamma of colors it spins at high rpms.The light of the lamp goes through it to create the colors on your tv.When it starts to go bad you will hear ,humming,buzzing,high pitch noises ,you might also experiment color distortion ,black and white picture. This is how the DMD works: http://electronics.howstuffworks.com/dlp1.htm Basically the light of the lamp goes through a tunnel that carries a color wheel(rotating disc with a gamma of colors that creates the colors on your tv)then the light of the lamp goes through the DMD board which is a chip composed of around 2 million pixels that creates the images and colors.When it starts to fail it will create black bars,pixelation,color distortion or white dots on screens. Here's a video that will help you find where the DMd chip is located : http://www.youtube.com/watch?v=0jr_9A5Xd2Q Have a blessed one!

Apr 29, 2010 | Televison & Video

1 Answer

Lamp light on front of tv stays on, it is amber in color


Hi,do you mean tv is showing an amber picture? If you do,it could be an issue with the color wheel or dmd board.The color wheel is a rotating disc that has a gamma of colors it spins at high rpms.The light of the lamp goes through it to create the colors on your tv.When it starts to go bad you will get color distortion ,black and white picture and sometimes you will hear humming noises.This is how the DMD works: http://electronics.howstuffworks.com/dlp1.htm Basically the light of the lamp goes through a tunnel that carries a color wheel(rotating disc with a gamma of colors that creates the colors on your tv)then the light of the lamp goes through the DMD board which is a chip composed of around 2 million pixels that creates the images and colors.When it starts to fail it will create black bars,pixelation,color distortion or white dots on screens. Here's a video that will help you find where the DMd chip is located : http://www.youtube.com/watch?v=0jr_9A5Xd2Q Have a blessed one!

Apr 02, 2010 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

My screen turns green and then turns off


you need to adjust the screen voltage. behind the front grille and inside cover. a small black box 6 adjusters protruding from it. only adjust the the color counterclockwise that matches the problem in this case it's the green so look for the knob with "G" marked by it. there are 2 with "g" marked by them the row across the top of the box are for focus don't adjust. back the knob off untill the raster is blank with your input set to an inactive input, the picture should be blank and black.
when it is you have the adjuster close to where it should be, now change the input to an active signal and turn the color off so that you wil have black and white picture. adjust that knob untill you do have a truely black and white picture not too green or red or blue. go back to inactive video input and check that there are no lines of any color on the screen. repeat if needed. always adjust these knobs slowly the set will be watching you ! if your autofocus won't work now you have the adjustment set too low. check this function before putting back together again. these adjustments can be real touchy so be patient

Feb 20, 2009 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Toshiba 65hx81 65" Rear Projection tv. black & white color/green


Yep, your problem is a relatively easy one to repair if you know how to solder. You better repair it before it blows the fuse though. There are two capacitors in the main power supply that are coming loose and need to be re soldered. There is a Toshiba service bulletin about it. They are marked C809 and C810 on the main power supply board. Good Luck

Sep 05, 2007 | Toshiba 65HX81 65" Rear Projection...

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