InFocus LP 640 manual Cleaning the dust filters, Using the security lock

Page 40

Cleaning the dust filters

The dust filters catch dust and other particles in the air. If the filters become clogged, the projector does not cool properly and may malfunction. In dirty or dusty environments, they should be cleaned after every 100 hours of use. Failure to do so may result in premature lamp failure.

There are two filters, one mesh filter attached to the dust filter door and one metal grid filter adjacent to the lamp door.

 

R

S-video 1

 

computer 1

 

 

 

computer 2

network

 

serial control

monitor out

audio in

video 2

turn off and unplug

 

L

 

computer in

video in

the projector

 

 

 

1Turn off the projector and unplug the power cable.

2Wait 60 minutes to allow the projector to cool thoroughly.

WARNING: To avoid burns, allow the projector to cool for at least 60 minutes before you clean or replace the dust filter.

3Turn the projector upside down and remove the lamp door. See page 38.

4Remove the dust filter door.

5Clean the filter using a vacuum set on low power.

6Replace the dust filter door and the lamp door.

7Vacuum the non-removable metal grid filter adjacent to the lamp door.

remove filter door

metal grid filter

wait 60 minutes

vacuum filter

Using the security lock

The projector has a security lock for use with a cable lock system. See “Accessories” on page 41 for ordering information. Refer to the information that came with the lock for instructions on how to use it.

 

 

R

S-video 1

computer 2

audio out

computer 1

serial control

network

 

 

 

audio in

L

video 2

monitor out

 

audio in

 

 

 

 

 

computer in

video in

security lock

40

Image 40
Contents USER’S Guide Declaration of Conformity TrademarksFCC Warning EN 55022 WarningTable of Contents Important Operating Considerations for Safety Projector components and features IntroductionIncluded items Online RegistrationConnector Panel Wireless ProjectionConnector panel of LP540 Connector panel of LP640Required computer connections Connecting a computerOptional computer connections Connect network cable Displaying a computer image ? No startup screen? Get help onFirst-time projector use with Windows Wizard launches two times For Windows 2000, Windows ME, and Windows XPAdjusting the image Standard video connections Connecting a video deviceOptional video connections Displaying a video image Adjust the volume on the keypad or remote Shutting down the projector Troubleshooting your setupLED behavior and meaning Only startup screen appears Computer image projectedNo computer image, just the words Signal out of range Computer Page Turn off Ceiling in SettingsSystem menu ColorLamp won’t turn on, LED blinking red Lamp turns onStill having problems? Using the keypad buttons Using the remote control Troubleshooting the remoteTroubleshooting audio Using the audioConnecting external speakers Presentation features Optimizing computer imagesOptimizing video images Customizing the projectorUsing the menus Picture menu Presets Room Lighting Advanced settings Settings menu Startup Logo Blank Screen Effect Key Picture in Picture Network Language Service menu Network Info Maintenance Cleaning the lensReplacing the projection lamp Resetting the lamp timer Cleaning the dust filters Using the security lockAccessories Standard Accessories Ship with the projector Part NumberOptional Accessories Part Number AppendixProjected image size Red LED behavior and projector errorsRed LED Behavior Explanation Numerics DhcpLED XGA