Make certain you have read the Mitsubishi HC900U DLP projector manual thoroughly before attempting the Mitsubishi HC900U DLP projector bulb replacement on your Mitsubishi HC900U DLP projector. Without touching the surface of the Mitsubishi HC900U 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 Mitsubishi HC900U DLP projector replacement parts. Your bulb should be sitting just beyond the opening of the Mitsubishi HC900U DLP projector body. Reach in with two fingers and disconnect the Mitsubishi HC900U DLP projector bulb. Reverse these steps to re-assemble your Mitsubishi HC900U DLP projector. This concludes the Mitsubishi HC900U DLP projector review - be sure to read the entire Mitsubishi HC900U DLP projector manual.