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It is the DMD board especially if the lamp stays lit. If the lamp is not lit... Be sure you have the lamp in properly...that is plugged in good and the door has the door switch engaged. Be sure door switch is still good and did not get damaged when replacing the lamp. DMD board can be found at encompassparts 1-800-638-3328 for 318.51 plus 150.00 for the core but right now is on FACTORY BACKORDER Part number BP96-00678DCurrently on Ebay for 179.00 plus 15.00 shipping. Enter part number in search
Check if instructions with color wheel show a jumper on DMD board for an upgraded bearing-type of color wheel. Jumper hole would be on rear-facing shield of DMD board. (Standard 2-pin jumper used on computer boards.) Probably would have to remove jumper; not insert it.
Okay what you can do is first make sure that you haven't lifted any foil paths on the circuit board. To do this work you will have to remove the dmd board. There are tension springs that have to be taken off to be used for screen centering when reinstalling. Use caution when handling dmd. remove sheild and make sure no small copper foils pulled up from the board. Now if the three wires that are used in the 4-pin plug connector are next to each other then you can use the 3-pin plug connector to reinstall them. Just make sure that they connect to the same place as they were removed from. And in the same order. Also, if you look closely you can see how the wires can be removed from one plug connector and installed in the other without cutting anything. Good luck with this, but you can do it if you have patience, Russmann.
When you replace the color wheel on certain models you must remove a jumper plug on the DMD board. There is a service bulletin that is usually included with factory replacement color wheels. If the color wheel has a whine to it that means it is probably used and came out of someone else's set. Anyhow the plug can be accessed as I recall without removing the shield of the DMD board. I know this because my first one of those gave me grief, too. Samsung changed wheels on different versions of the same model tv so it gets confusing. You should be ok though after adding/removing the two pin plastic jumper from the DMD board. The only other thing I saw cause a green picture eas the plug that goes from the DMD to the digital board can develop bad connections and can be replaced with a regular DVI type cable. Hope this helps, Russmann.
if you replaced the color wheel and are experiencing some strange colors on the tv, then check the dmd board, you may need to remove the jumper underneath the shield on the dmd board, you should see a small sticker noting this
Brandon. Locate CN110 on the DMD its a wire plug. Pin 2 is gorund pin 4 is voltage for the color wheel. When the color wheel is off pin 4 should have 5V on it when power is pressed it should have 7v for the color wheel to start. If the voltages on pin 4 is 5V your DM is ok and Color wheel would be indicated as faulty, But if pin 4 is anything less than 5V its the DM which is faulty.
Hi..it is the DMD board (digital mirror display) but IF it can be repaired it would cost around $300.00 to repair and $970.00 to replace. I would tighten the screws that hold the mirror to the board first. All four of them. Sometimes if the screws are loose, you will get the vert. lines too.