Make certain you have read the ViewSonic PJ551 1500 Lumen XGA Video Projector manual thoroughly before attempting the ViewSonic PJ551 1500 Lumen XGA Video Projector bulb replacement on your ViewSonic PJ551 1500 Lumen XGA Video Projector. Without touching the surface of the ViewSonic PJ551 1500 Lumen XGA Video Projector lens, remove the lens tube and set it aside. Write down the number from inside the tube's inner lip for the purpose of make, model or serial number for any future need to buy ViewSonic PJ551 1500 Lumen XGA Video Projector replacement parts. Your bulb should be sitting just beyond the opening of the ViewSonic PJ551 1500 Lumen XGA Video Projector body. Reach in with two fingers and disconnect the ViewSonic PJ551 1500 Lumen XGA Video Projector bulb. Reverse these steps to re-assemble your ViewSonic PJ551 1500 Lumen XGA Video Projector. This concludes the ViewSonic PJ551 1500 Lumen XGA Video Projector review - be sure to read the entire ViewSonic PJ551 1500 Lumen XGA Video Projector manual.