3M MP8790 manual Replacing the lamp, Knob of Lamp Cover Lock, Tabs, Push

THE LAMP (continued)

Replacing the lamp

All projector lamps will wear out eventually. If used for long periods of time, the image could become darkened, and the color contrast could be impacted as well. We recommend that you replace your lamps early. If the LAMP indicator turns red, or a message prompts you to replace the lamp when you power up the projector, the lamp needs to be replaced. (See "Related Messages" ( 38 ) and "Regarding the Indicator Lamps" ( 39 ) for details.)

1	Turn off the projector, and unplug the
	power cord. Allow the lamp bulb to cool
	for at least 45 minutes, and prepare a
	new lamp.
2	After making sure that the projector has
	cooled adequately, slide the knob of a

lamp cover lock as shown in the figure. Then, one side of the lamp cover is raised. Pull up the lamp cover and remove it, as shown in the figure.

Knob of Lamp

Cover Lock

3	Unscrew the 3 screws, and slowly pull
	out the lamp by the handle.

•Be careful not to touch the inside of the lamp case.

4	Insert the new lamp, and
	tighten the 3 screws firmly to
	lock it in place.
	Interlocking the 2 tabs of the
5
	lamp cover to the projector,
	put the lamp cover on the
	projector.
	Then push the point of the
	lamp cover to fix it, as shown
	in the figure.
	Make sure that the lamp
	cover doesn’t come up.
	Tabs
	Push
6	Turn on the projector power,
	and reset the lamp timer.

•To reset the lamp timer, from the OPTION menu, select the LAMP TIME. ( 31 )

ATTENTION • Make sure that the screws are screwed in firmly. Loose screws could result in damage or injury.

•Do not use with lamp cover removed.

•Do not reset the lamp timer without replacing the lamp. Reset the lamp timer always when replacing the lamp. The message functions will not operate properly if the lamp timer is not reset correctly.

•When the lamp has been replaced after the message of “CHANGE THE LAMP .....THE POWER WILL TURN OFF AFTER 0 hr.” is displayed, or the LAMP indicator is red, complete the following operation within 10 minutes of switching power on.

NOTE • The LAMP indicator is also red when the lamp unit reaches high temperature. Before replacing the lamp, switch power off, wait approximately 20 minutes, and switch power on again. If the LAMP indicator is still red, replace the lamp.

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