BenQ PE7700 user manual Additional information, Care of the projector, Cleaning the lens

Page 29

Additional information

Care of the projector

Your projector needs little maintenance. The only thing you have to do on a regular basis is keep the lens clean. Never remove any parts of the projector except the lamp. Contact your dealer if other parts needs replacing.

Cleaning the lens

Clean the lens whenever you notice dirt or dust on the surface. Before you attempt to clean the lens, turn the projector off, unplug the power cable, and leave it several minutes to cool completely.

1.Use a canister of compressed air to remove dust. (Available from building hardware or photographic suppliers.)

2.If there is stubborn dirt or smudge marks, use a proper photographic lens brush or moisten a clean soft lens cloth with lens cleaner to gently wipe the lens surface.

Never touch the lens with your finger or rub the lens with abrasive materials. Even paper towels can damage the lens coating. Only ever use a proper photographic lens brush, cloth, and cleaning solution. Do not attempt to clean the lens whilst the projector is switched on or is still hot from previous use.

Cleaning the projector case

Before you attempt to clean the case, turn the projector off, unplug the power cable, and leave it several minutes to cool completely.

1.To remove dirt or dust, wipe the case with a soft, dry, lint-free cloth.

2.To remove stubborn dirt or stains, moisten a soft cloth with water and a neutral detergent. Then wipe the case.

Never use wax, alcohol, benzene, thinner or other chemical detergents. These can damage the case.

Cleaning and replacing the dust filter

It is necessary to clean the dust filter periodically. You can go to Setup> Dust Filter Hours to check how long the filter has been used. If the filter is not cleaned, it can become clogged with dust and prevent proper ventilation. This can cause overheating and a malfunction of the projector.

In case you fail to clean the filter regularly, the projector

Please install a new filter.

will shut down automatically once the filter is seriously

The projector will turn off in 1 min.

clogged with dust and cause over-heating inside of the

 

projector. You will see the message pictured to the right

 

before the power off.

 

To clean the filter,

 

1.Turn the project off and wait until the fans stop running.

2.Disconnect the projector from any cables.

3. Draw the dust filter grill from the front-right side of the projector.

English

Additional information

29

Image 29
Contents PE7700 Digital Projector Home Theater User’s Manual WelcomeDisclaimer CopyrightTable of Contents Setup menu Menu structure Using the menus Picture menu Display menuIndicators MenusSafety instructions Safety, regulatory and legal informationFCC statement for US users EEC statement for European usersSafety, regulatory and legal information Do not block the ventilation holes Disposal Moisture condensationAvoid volatile liquid Overview FeaturesShipping contents Projector exterior view Connector panelFront / upper side Rear side Bottom and right sidesControl panel Remote controlControls and functions Memory 1, 2, 3 and default buttons Refer to 26 for more Selects the image aspect ratio to suit the input signalDefault settings for the current input source Used to select the desired menu or to make adjustmentsChoosing a location Positioning your projectorFloor front III. Floor rearObtaining a preferred projected image size Installation for a 169 ratio screenWidescreen ratio screen dimension table Standard ratio screen dimension table Installation for a 43 ratio screenType Height Width Min Tele Wide InchConnecting video inputs Connecting various equipmentConnecting Hdmi devices Connecting component video devicesConnect the projector to a computer with a VGA-BNC cable Connecting a computerConnecting S-video or video devices Turning the power on Using the projector and remote controlSwitching input signals PreparationsAdjusting the angle height Adjust the imageAuto-adjusting the image Optimizing the imageOther adjustments Selecting a preset modeSelecting aspect ratio Letter Box Enlarges anSaving and loading the video memory Personalizing the projector menu displayPIP POP Turning the power offMenu structure MenusPicture menu Using the menusDisplay menu Extended Picture SettingsPIP POPVideo Composite video signal Video S-Video video signal Setup menuOptions menu VideoDust Filter Advanced menuLamp Cleaning the projector case Cleaning the lensCleaning and replacing the dust filter Additional informationRemove the lamp cover Storing the projectorTransporting the projector English When the projector is in an abnormal state IndicatorsWhen the projector is in a normal state Picture is blurred TroubleshootingImage is unstable Dimensions Specifications