After replacing a dlp chip have a green color on screen

as my experience, the most possible reason should be the color wheel or its photo sensor board.

firstly try to clean its photo sensor board, or have to replace a new wheel.

i just have this wheel, when you need to replace it, contact me freely

sounds like the color wheel is bad

is the problem like this. this is a sing that the DLP chip is failing. these can be changed but I don't know the number off hand, when you take off the back in the middle there is a board with 3 plastic caps. take the wires off this board. take the caps off and there is some screws inside this is the lining up the screen part you will need to do after you have replaced the chip. take the board away. and take the casings of the board you will find a heat sink take this off as behind it hold the screw that hold the DLP chip in place when it is all removed carefully remove the chip being very careful it just prise out but has very tiny pins on the back of it. put new one in and now do in revers order replace the heat sink paste on the back of the cooling fin. when all back together you need to lockat the switch were the light is fitted it will be a push type that when the case is fitted it will push it in. make it so it stays pushed in. not turn on the tv. remember them 3 screws in the plastic. them are now going to need to be adjusted. using a flat head or something plastic. just have the screw touching in place so the board can be moved. have tv set to a tv program with reports on the bottom of the screen. you need to lift the board and move it around til the screen fits the picture. this is a long and tedious thing to do, take a few goes as you need to keep checking that it matches with other programs. I used a screen program on laptop into the tv and set it up that way but still ended up using programs to test the placement should not be green any more any way. this is a picture of the chip you will need.hope this helps you out need any more info contacted me here.

Likely you either forgot to reattach your color wheel ribbon connector, or have it on upside down. It's the tiny ribbon cable behind your circuit board that will come off as you pull the board away from the DLP chip.

try to check dlp chip inside the projector maybe dlp chip got problem or very dirty or check whether color wheel got fungus and try to clean it.

Hi,It sounds like it could be the color wheel or DMD.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. The DMD is another possibility.This is how it 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 One simple test is to display menu and if it's affected then most like will be an issue w the DMD board.Found the complete set with color wheel and DMD included here: http://www.discount-merchant.com/SAMSUNG-30407272050-Light-Engine-w-Color-Wheel-p/1139314.htm Have a blessed one!

First of all, that is not an LCD tv. It is DLP, which is a common mistake because the picture is very similar. DLP tv's use a high-power lamp that reflects light off of thousands of tiny mirrors into a spinning color wheel which gives the reflections color. Each little mirror is one pixel, which can be any color depending on the hole that it goes through on the color wheel. The color wheel may be spinning slower than normal, which could make all of the light go through the green filter on the color wheel, and give your screen a green tint. Have a trusted mechanic take your tv apart and dust the inside. If that doesn't fix it, you may need a new color wheel or bearings for it (that help it spin). You should not pay more than $200 for a bearing replacement on this tv.

Thanks for asking.
-Josh

This pic might help your understanding.

http://static.howstuffworks.com/gif/projection-tv-1-chip-projector.jpg

Hi,if your tv is and Lcd rear projection it will be the light engine that needs replacement.Because lcd technology uses 3 chips green,red and blue that create the image and colors.When they start to fail you will get what you are getting color discoloration and rainbows.If your tv is DLp it will be the dmd chips which basically its like the lcd chips but instead of 3 chips its only one that creates the image.Hope this works God bless you!

the color wheel has gone out. good luck finding a new one. I just had to have my whole unit replaced because parts could not be located.

Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

• Screen looks 3D
• Colors don't line up
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed or warped.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

Solution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.


TV set after fluid change



Solution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.