How to Clean the Inside of a DLP TV

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DLP (Digital Light Processing) TVs, also known as rear projection televisions, are large screen TVs that house an internal, removable lamp in the back of the unit to produce an image on the screen. Even though they have a poorer picture quality than plasma TVs, DLP televisions are good models to consider if you're interested in setting up a home theatre system. One thing to keep in mind, though, is that the lamp and the internal compartment of DLP TVs require regular cleaning. It's a relatively simple process that shouldn't take up much of your time.

Skill level:

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Things you need

  • Phillips screwdriver
  • Microfiber cloth
  • Canned air

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  1. 1

    Turn off your DLP television and let rest for at least two hours.

  2. 2

    Find the lamp unit door on the side of your particular DLP model (it will be labelled). Open the door and remove the two screws that secure the lamp unit in place.

  3. 3

    Carefully remove the lamp unit from its housing (it's about the size of a football) and clean the lens with your microfiber cloth. Set it aside when finished.

  4. 4

    Remove the lower rear cover from the back of the television by loosening the screws on the sides and ends of the cover and pulling it away from the TV. Then remove the screws that hold the input/output jacks cover in place. Remove the cover.

  5. 5

    Remove all screws along the back of the TV screen that hold it in place and carefully pull the screen away from the TV housing. The lamp fans will now be clearly visible. They rest in front of the lamp housing where the screen used to be.

  6. 6

    Clean each of the fans with the canned air (available at any hardware store).

  7. 7

    Locate the light engine lens (behind the projector housing) and use the canned air and microfiber cloth to clean it. Reassemble your television in the reverse order you took it apart.

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