33
Cleaning the Projection Lamp Filter Screens
In dirty or dusty environments, the dust filter screens on the lamp module can become clogged,
causing high temperatures inside the lamp module. These high temperatures can cause
premature lamp failure. Routine maintenance to remove dust and dirt from the screens lowers the
lamp operating temperature and prolongs lamp life. To maximize lamp life you may want to clean
the screen every 250 hours.
1. Remove the lamp module. Refer to “Replacing the Projection Lamp” on page 31 for
instructions.
2. Examine the dust filter screens on each side of the lamp module. If necessary, use a vacuum
cleaner set on low power to clean the screens. Then use a cotton swab dipped in isopropyl
alcohol to lightly wipe each screen. After you've wiped each screen, blow away any remaining
contaminants.
Figure 42
: Lamp module screens
3. Before replacing the lamp, use the
vacuum cleaner to clean the lamp
housing in the projector.
4. Replace the lamp and lamp door.
Replacing the Batteries in the Remote Control
The life of the batteries depends on how often and how long you use the remote. Symptoms of
low battery charge include erratic responses when using the remote and a reduced range of
operation.
Follow these steps to replace the batteries:
1. Turn the remote face down in your hand.
2. Push the tab on the battery door toward the top of the remote and lift the door off.
3. Remove the old batteries and dispose of them in an environmentally proper manner.
4. Install two new AAA alkaline batteries. Make sure you install each in the correct direction.
5. Insert the hooks on the battery door into the remote and press the tab to re-install the door.
