Make certain you have read the BenQ MP770 DLP Projector manual thoroughly before attempting the BenQ MP770 DLP Projector bulb replacement on your BenQ MP770 DLP Projector. Without touching the surface of the BenQ MP770 DLP 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 BenQ MP770 DLP Projector replacement parts. Your bulb should be sitting just beyond the opening of the BenQ MP770 DLP Projector body. Reach in with two fingers and disconnect the BenQ MP770 DLP Projector bulb. Reverse these steps to re-assemble your BenQ MP770 DLP Projector. This concludes the BenQ MP770 DLP Projector review - be sure to read the entire BenQ MP770 DLP Projector manual.