Samsung HLP5674 color wheel problem

If you didn't replace the whole assembly with the color wheel, the sensor on the bracket could have been damaged. The sensor detects the black stripe on the hub assembly of the wheel to sense if it is spinning before lighting the lamp. I learned the hard way and just replaced the color wheel. 8 months later the sensor started failing intermittently and then outright failed and it had me scratching my head for a week trying to figure it out. At first the lamp would light for about 5-10 mins, good picture, and then would go out and all 3 LEDS on the front of the TV would flash. Had to pull plug from wall to get it to restart and the the same thing. After a while it failed altogether and the tv would try to start and shut down. It would restart by itself 2 more times, but the RPMs on the color wheel were way too high...the sensor was trying to read the RPMs and couldn't get a reading. The wheel was ramping up and down. After 3 tries, the tv would shut down with 3 LEDs on the front panel. I replaced the bracket with a new one (new sensor and wire) and all is well. I could not find just the bracket/sensor assembly, had to buy the whole assembly (wheel/bracket/sensor). Hope this helps.