Make certain you have read the ViewSonic PJ520 2000LUMEN SVGA-MMPROJ 5.9LBS manual thoroughly before attempting the ViewSonic PJ520 2000LUMEN SVGA-MMPROJ 5.9LBS bulb replacement on your ViewSonic PJ520 2000LUMEN SVGA-MMPROJ 5.9LBS. Without touching the surface of the ViewSonic PJ520 2000LUMEN SVGA-MMPROJ 5.9LBS 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 PJ520 2000LUMEN SVGA-MMPROJ 5.9LBS replacement parts. Your bulb should be sitting just beyond the opening of the ViewSonic PJ520 2000LUMEN SVGA-MMPROJ 5.9LBS body. Reach in with two fingers and disconnect the ViewSonic PJ520 2000LUMEN SVGA-MMPROJ 5.9LBS bulb. Reverse these steps to re-assemble your ViewSonic PJ520 2000LUMEN SVGA-MMPROJ 5.9LBS. This concludes the ViewSonic PJ520 2000LUMEN SVGA-MMPROJ 5.9LBS review - be sure to read the entire ViewSonic PJ520 2000LUMEN SVGA-MMPROJ 5.9LBS manual.