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© 3M 1999 3M
Multimedia Projector MP8740
ENGLISH
6.3 Replacing the Lamp
WARNING
Always turn off and unplug projector when changing lamp.
Lamp and adjacent metal parts become extremely hot and can
cause severe burns to your fingers. Allow the projector to cool for
at least 30 minutes before replacing the lamp.
1. Remove lamp access door: The lamp access door is located
on the bottom of the machine on the right side. Use
screwdriver to unscrew the cover retaining screw (1) and
gently open the cover and set it aside.
2. Retaining screws: Use a screwdriver to unscrew the lamp
module retaining screws. (2)
Note
There are three lamp module screws that must be loosened. These
screws are self-containing screws that cannot be removed from the
lamp module.
6.1 Lamp
The following symptoms may indicate a lamp in need of replacement:
LAMP indicator lights up red.
"CHANGE THE LAMP" message appears on the screen.
6.2 Display Lamp Operation Hours
To determine the lamp operation hours, follow these steps:
1. While the projector is running, press and hold the timer button on the remote control for 3 seconds.
2. The operating time of the lamp will be displayed. If the operating hours are greater than 1,900 the
"CHANGE THE LAMP" message will appear. If the hours are greater than 1,980 the following
message will appear, "POWER WILL SHUT OFF IN
20 HOURS" The number of hours left until
shut down will decrease until
0 hour is reached, then power will be turned off.
Note
After 2000 hours, the projector will only run for 10 minute intervals when restarted until the lamp is replaced and
the lamp timer is reset. The message "CALL A MAINTENANCE PERSON" will blink at projector start up to
remind you to change the lamp.
3. To reset the timer, press the reset button and select 0 (or CANCEL). The "CHANGE THE LAMP"
message will not come up if the timer is reset.
Section 6: Lamp
15
Figure 6.1 Lamp Door
1
2
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