Question about Mitsubishi VS-45607 45" Rear Projection Television

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Picture is really light in color screen is white

When we turn on our tv it is really light in color and sometimes you can slap the case and it will fix itself. sometimes if you turn it on it will be okay but after 10 mins. it will go light

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It sounds like you have bad solder joints in the tv. If you resolder the boards in the tv, it sounds like it will be fine. When you are slapping the tv, it is temproarly making contact again and fixing the picture..

Posted on Jan 15, 2009

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Why does my KD-32FS170 32" Sony Trinitron screen have blue hues


If you turn all of the color out of the TV, the picture should be black and white. If that picture is not a true black and white picture, the TV will produce a color picture that has that behind it. It takes the proper mixture of red, green and blue light to produce white. This is something that is done inside the glass picture tube.
In your case, one color (blue is stronger) and the others are weaker.
It probably had not been used for a while. SOMETIMES, the weaker colors will get stronger with use. Adjust the brightness and picture controls to get the closest you can to a black and white picture, and then add the amount of color that seems right to you. Use the TV and hope for the best. It will improve, but 2%, 10%, or 50%; I do not know. The proper repair is to replace the glass picture tube, which is not an option at this time. So, turn it on, play games, and HOPE for the best.

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If I had to guess I would say it's either the DLP chip or the prism. Simply put the lamp lights the DLP chip which directs the light into a prism and then onto the TV screen. The prism or prisms are responsible for aligning the colors correctly. The DLP chip is essentially a million little moving mirrors which direct light

If you're at all comfortable with electronics you might want to open the TV up to take a look. You might get lucky and find something obviously wrong with the TV. Sometimes adhesives melt and parts slip out of place. If your DLP chip is blown there isn't much you can do. You're probably right that this would cost a lot to fix and not be worth it.

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Vertical and horizontal adjust went out with black and white TV pretty much.I remember those days too...what would kids nowadays do???lol.Anyhow,the fact that it clears up sometimes when you slap it should mean that the screen is fine.Something on the circuit board may need repair.Unfortunately,I have searched for diagrams for TV's online many times and only authorized shops have the access required.I just checked westinghouse,not even a way to sign in if I were a reapir shop.So,needless to say, a shop will have to check it out.Sorry That's all I can suggest and good luck!

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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

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!

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1 Answer

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Hi,it definetely sounds like the color wheel.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.Found your color wheel here: http://www.discount-merchant.com/MITSUBISHI-00-L3603-002-p/1162430.htm Have a bless one!

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I have a 1994 zenith big screen the picture is showing really dar


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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

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That model has a history of bad solder connections in various circuits. I would not be surprised if that is the case with the color circuitry. You may get the color to come and go by slapping the sides of the TV or lifting one corner about 1/2 inch and dropping it. If it does, it is a bad connection and possibly fixable. If no change is noted, it could be a bad semiconductor or capacitor, etc., causing the symptoms. For that size set, it would probably be cheaper to replace with a different brand. Toshiba has a nice 14" model IMO.

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