Question about Samsung PCN5425R 54" Rear Projection Television

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Samsung 46inch rear pro

Iv had my answer back and said its the dmd board. were do i get it fixed and cost please. ennn

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Hi..not sure where you are but where I live it cost $250.00 to repair the DMD (Digital Mirror Display) board or $970.00 to replace it. I would check at the store you purchased your TV at or even look in the yellow pages.

Posted on Mar 25, 2008

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Buy a new DMD Chip and replace it yourself only cost you $159 which save at least $100 to ask a repairing center to do it for you. Check the video how to do this. Source: DMD Chip replacement tips And your DMD chip should looks like
2_23_2013_6_05_42_pm.jpg

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There seems to be an issue with your DMD board, which is the on in charge of the pixelation. What you can do to confirm if it's indeed the DMD board, is the following: GO to the menu on the TV and if the dots show in the menu, it's your DMD board, but if they don't the issue might be with one of your Video Boards.

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Hello! Those white spots are most probably to be the DMD board, I'm not sure Samsung will fix it for free, you will need to call them and ask. The board is not that expensive. on the other hand, the installation will need to be done by a technician since it's a board and you want to be very careful with the boards that are around it.

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1 Answer

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Most likely the DMD board is at fault. If the DMD board is failing it will hold the data lines in the set down which will cause it to stay on until you unplug it. The part number for the DMD board is BP96-00249A but I suggest you have a technician verify the issue and replace the board as it requires mechanical alignment after wards. Please take a moment to rate my answer. Thank you.

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The random whit dots you are seeing is more than not the DMD or million little mirrors board. The white spots represent some of the mirrors that are sticking in the on position. In that case they are always reflecting white light from the lamp. I don't concider the DMD board a do it yourself repair since on the older DLP set it requires mechanical alignment as well. The best thing to do is contact a techincian and see what they might charge to repair the TV for you. Please take a few moments to rate my answer...Thanks..

Nov 15, 2009 | Samsung DLP HL-P4663W 46" Rear Projection...

1 Answer

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The white dots/stars you are seeing is a failing DMD board. It is the board with the million little mirrors on it. The white dots are mirrors stuck in the on position always reflecting the white light from the lamp. The DMD board is a technician replaceable item and part number varies by model code. Please contact a local servicer to have them look at your TV so they can order the right part number for your DMD board. Please take a moment to rate my answer. Thanks....

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2 Answers

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I had the same problem with my Samsung DLP tv a couple of weeks ago. I had to clean the lenses, mirrors and the DMD sensor to fix it, you must remove the rear cover to do this. If the mirrors and lenses were cleaned but the spots were still there, the final thing to do is to clean the sensor chip on the DMD board. It is located under the heat sink behind the small fan in the lower center of the rear of the TV. The DMD board will have to be removed to get to the back of the sensor. All you have to do is blow some dry canned air across it to remove the dust, do not wipe it with anything. The repair is somewhat complicated and you will probably have to realign the picture by adjusting the position of the DMD board when finished.

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1 Answer

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This is very common in Samsung DLPs. The DMD board is going bad. You will need to replace it.

Mar 21, 2008 | Samsung PCN5425R 54" Rear Projection...

2 Answers

Fan


one is located behind the DMD bord and One above the lamp blast

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