Question about Samsung HLP4663W 46" Rear Projection HDTV

2 Answers

Color wheel replacement

Is there a starting position when installing a new color wheel?
Picture is good but color is wrong mainly blue and can't adjust color.

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  • steven d Apr 23, 2008

    Finally replaced new color wheel with original and the colors and picture is good but it is very noisy, squealing noise. Reordered new color wheel, at this time I have to believe the new part was bad. I also tried adjusting the CCA'S but that didn't help at all.

  • jstkidnu May 21, 2008

    just replaced the color wheel and the color is wrong mostly blue and also the picture seems alittle blured is anyone else having this problem? does anyone know how to fix this? i love the tv....help. thanks

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2 Answers

Solution found!
This TV set is a 2004 and there is no yellow sticker on sheilding to indicate jumper plug position. I removed sheild and on pcb found test points had been soldered together, no pins on this pcb. Removed solder bridge and tried picture again and now it is working as normal, good color, no noises from color wheel, and good picture. This set was miss leading because access to pcb thru sheilding was blocked.
Hope this may help others out there.

Posted on May 12, 2008

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I have the same problem. Iet me know if you get a solution.
Brandon
brand43076@charter.net

Posted on Apr 22, 2008

  • Brandonsox34 May 12, 2008

    From what I have read you need to disconnect a jumper cable that is next to the color wheel on new color wheels (not the case with original color wheel). Do a google search and you should find some more info. good luck and keep me posted.

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I ordered and replace color wheel optima pro250x dlp projector and now I have a green screen instead of blue screen and colors are off? Could this be wrong color wheel or do I have to reset something?


i'm expert on optoma projector, i think i can help you.

please tell me whether the segments of new wheel from ebay are same as your old one?

if their segments are same as your old one. the wheel is correct. just need to make a small adjustment, it will be ok.

you can contact me by wanmingjun@gmail.com, send me a picture of your old wheel and that wheel you ordered from ebay. i will tell you how to do next.

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5_3_2012_10_30_42_pm.jpg

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3 Answers

Installed new color wheel not working correctly


Hi danny,

I also replaced the color wheel in my EP739 after the old one disintegrated suddenly. Colours were then all over the place. Actually, it looked like each colour channel was displaying all the colours of the rainbow!

Here is the procedure I used to solve the problem - maybe not as elegant as Marrie's solution, but it will not cause any damage, will most likely solve the problem, and you will be able to get everything back to the way it was if it doesn't work:
  1. Have the projector running and displaying a stationary picture. The right sort of picture to use is one that has a full range of brightness values from near-black to peak white. I used my lap-top as the source. Also, this way you can compare the projector's picture with the picture on the lap-top.
  2. Press the power button once. "Power off the lamp" dialogue box appears. Hold down the left arrow button until the service menu appears (takes about 8 seconds).
  3. Using the up/down arrow buttons, scroll down to "Color Setting" and press "enter".
  4. Scroll up to "Color Wheel Index". Make a note of the existing setting for later reference. You can change the Index setting over a range of 100 to 550 by holding down the left/right arrow buttons. As the setting changes, the colour rendition will slowly change, and at some point the colours will come right. Note that the changes are quite slow. Find the lower and higher settings where colour aberrations just start to appear, and set the Index mid-way between.
  5. If this doesn't fix the problem, return the Index setting to original. My original setting was 354 and the new setting was 461.
I do not advise touching any other settings in the service menu unless you have access to a service manual and know what you are doing.

Good luck!
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It was the Main Board in my case.

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