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MAINTENANCE
This section describes how to:
clean the lens
•
clean the fan intake filter
•
replace the projection lamp
•
replace the batteries in the remote control
•
use the Kensington lock feature
•
Cleaning the Lens
Follow these steps to clean the projection lens:
1 Apply a non-abrasive camera lens cleaner to a soft, dry cloth.
Avoid using an excessive amount of cleaner.
•
Abrasive cleaners, solvents or other harsh chemicals might
•
scratch the lens.
2 Lightly wipe the cleaning cloth over the lens.
3 If you don't intend to use the projector immediately, replace
the lens cap.
Cleaning the Fan Intake Filter
The fan intake filter on the bottom of the projector catches dust
and particles in the air. If the filter becomes clogged, the projector
does not cool properly and may malfunction. To prevent this,
clean the filter after every 100 hours of use.
1 Turn off the power and unplug the power cord.
2 Remove the filter door.
Carefully place a screwdriver against the indented part of
•
the filter door and lift out.
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Summary of Contents for InFocus LP720
- Page 1 Cleaning the Fan Intake Filter The fan intake filter on the bottom of the projector catches dust and particles in the air. If the filter becomes clogged, the projector does not cool properly and may malfunction. To prevent this, clean the filter after every 100 hours of use.
- Page 2 IGURE Removing the filter door 3 Clean the filter. Use a vacuum cleaner set on low power to remove the dust • and dirt. IGURE Cleaning the air filter 4 Replace the filter. First, insert the side with the tabs, then press the other end •...
- Page 3 After 2000 hours of use, the lamp monitor LED, marked projector near the keypad, lights. After 2050 hours, the lamp switches off completely and must be replaced. You can order new lamp modules from your In Focus dealer.
- Page 4 WARNING: Do not drop the lamp module or touch the glass bulb! The glass may shatter and cause injury. IGURE Removing the lamp module 7 Align the new lamp module in the correct direction. 8 Gently push the module in as far as it goes (Figure 36). 9 Tighten the screws on the outside of the module.
- Page 5 11 Replace the screw and tighten it. 12 Plug in the power cord and turn the projector back on. The lamp monitor light and lamp hour counter in the Status bar on the menus are automatically reset. Replacing the Batteries in the Remote Control The life of the batteries depends on how often and how long you use the remote.
-
Page 6: Troubleshooting
1 Check cable connections. Verify that all computer, CableWiz- ard and power cables are properly connected. 2 Verify that all power is switched on. 3 Verify that the projector has not been switched off with the button on the keypad. standby 4 If the projector still doesn’t display an image, restart the com-... - Page 7 • tional AC electrical outlet. Make sure that the power cord is also properly connected to the projector. If the projector is plugged into a power strip, make sure the • power strip is turned on. Make sure you have removed the lens cap on the projection •...
- Page 8 27 or “Video” on page 29. You might need to turn everything off and power up the equip- • ment again. Make sure you power up in this order: projector, computer monitor, computer. It is especially important that you follow this sequence for Macintosh computers.
- Page 9 Adjust the resolution of your monitor if it’s greater than • 1024x768 pixels for the 720 or 1280x1024 for the 730. Only these resolutions at 75 Hz or less will display on the projector. Problem: Image is out of focus Turn the projection lens to focus the image.
- Page 10 A minor power surge may cause the lamp to shut off. Turn the • projector off, wait at least 30 seconds, then turn it back on. Problem: Remote not operating correctly You might need to replace the batteries. See “Replacing the Bat- •...
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