Digital light projection (DLP) HDTVs use an incandescent bulb to project the TV signal onto the rear-projection screen. The life of the bulb is rated by the manufacturer of the HDTV--for example, the Samsung corporation--using a built-in countdown bulb timer. The lamp timer must be reset to zero once the new bulb has been installed. You can reset the lamp timer of a Samsung HDTV by activating the service menu. This should be done immediately after the new bulb has been installed.
Aim the Samsung remote at the front of the Samsung HDTV--if you know where the infrared sensor on the front of the Samsung is located, aim the front of the remote directly at it.
Press the following keys on the remote in this order: Mute, 1, 8, 2, Power.
Do nothing as the Samsung HDTV's screen lights up with the words "Loading Factory" on it.
Press the "Down" direction pad on the remote to select "Option" from the list of choices that appear on the screen. Press the "Enter" button on the remote.
Select "Reset lamp timer" from the list of choices presented on the screen. Press the "Enter" button on the remote.
Turn off the HDTV with the remote's Power button. Do not turn the HDTV back on until at least five minutes have passed.
Substitute the "Menu" button for the "Mute" button if the service menu does not start up.