Mitsubishi Electronics HC7900DW user manual Important safeguards

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Important safeguards

Please read all these instructions regarding your projector and retain them for future reference. Follow all warnings and instructions marked on the projector.

1.Read instructions

All the safety and operating instructions should be read before the appliance is operated.

2.Retain instructions

The safety and operating instructions should be retained for future reference.

3.Warnings

All warnings on the appliance and in the operating instructions should be adhered to.

4.Instructions

All operating instructions must be followed.

5.Cleaning

Unplug this projector from the wall outlet before cleaning it. Do not use liquid aerosol cleaners. Use a damp soft cloth for cleaning.

6.Attachments and equipment

Never add any attachments and/or equipment without the approval of the manufacturer as such additions may result in the risk of fire, electric shock or other personal injury.

7.Water and moisture

Do not use this projector near water or in contact with water.

8.Accessories

Do not place this projector on an unstable cart, stand, tripod, bracket or table. Use only with a cart, stand, tripod bracket, or table recommended by the manufacturer or sold with the projector. Any mounting of the appliance should follow

the manufacturer’s instructions and should use a mounting accessory recommended by the manufacturer.

An appliance and cart combination should be moved with care. Quick stops, excessive force and uneven surfaces may cause the appliance and cart combination to overturn.

9.Ventilation

Slots and openings in the cabinet are provided for ventilation, ensuring reliable operation of the projector and to protect it from overheating. Do not block these openings or allow them to be blocked by placing the projector on a bed, sofa, rug, or bookcase. Ensure that there is adequate ventilation and that the manufacturer’s instructions have been adhered to.

10.Power sources

This projector should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power, please consult your appliance dealer or local power company.

11.Power-cord protection

Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them. Pay particular attention to cords at plugs, convenience receptacles, and points where they exit from the appliance. Do not put the power cord under a carpet.

12.Overloading

Do not overload wall outlets and extension cords as this can result in a fire or electric shock.

13.Objects and liquids

Never push objects of any kind through openings of this projector as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock. Never spill liquid of any kind on the projector.

14.Servicing

Do not attempt to service this projector by yourself. Refer all servicing to qualified service personnel.

15.Damage requiring service

Unplug this projector from the wall outlet and refer servicing to qualified service personnel under the following conditions:

(a)If the power-supply cord or plug is damaged.

(b)If liquid has been spilled, or objects have fallen into the projector.

(c)If the projector does not operate normally after you follow the operating instructions. Adjust only those controls that are covered by the operating instructions. An improper adjustment of other controls may result in damage and may often require extensive work by a qualified technician to restore the projector to its normal operation.

(d)If the projector has been exposed to rain or water.

(e)If the projector has been dropped or the cabinet has been damaged.

(f)If the projector exhibits a distinct change in performance - this indicates a need for service.

16.Replacement parts

When replacement parts are required, be sure that the service technician has used replacement parts specified by the manufacturer or parts having the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock or other hazards.

17.Safety check

Upon completion of any service or repair to this projector, ask the service technician to perform safety checks determining that the projector is in a safe operating condition.

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Contents HC7900DW Risk of Electric Shock Do not Open Contents Important safeguards Important safeguards Inserting the batteries into the remote control Removing the batteries from the remote controlPreparing your projector What’s included in the boxOverview Preparing your projectorControl panel Picture quality adjusting buttons Remote controlPicture quality selection buttons Using the remote control Operational range of the remote controlReception distance Reception angleSetting up your projector Setting up the screenWhen the aspect ratio of the screen is Screen size and projection distanceWhen the aspect ratio of the screen is 2.351 CinemaScope Setting up your projectorWhen the aspect ratio of the image is Adjusting the position of the projected image When fine streaks are seen on projected imagesWhen projected images are distorted to a trapezoid Correcting skewed or distorted imageFront projection, ceiling mounting Rear projectionTrigger terminal Connecting the projector to video equipment Viewing video imagesBasic home theater system connection PreparationViewing video images Connecting to video equipment having a Hdmi terminalConnection for video equipment having an Hdmi terminal Plugging in the power cord Connecting to a DVD player or Hdtv decoderProjecting images To stop projecting Setting the aspect ratio ZOOM1 ZOOM2 Stretch ANAMORPHIC1 ANAMORPHIC2With the remote control How to change the settingsWith the Feature menu See page 29 for menu setting Connecting the projector to a computer Plugging the power cordViewing computer images About DDCViewing computer images When connecting to a notebook computer Setting of the resolutionExample of the setting procedure for external output Auto Position buttonInstalling the 3D emitter Viewing 3D imagesUsable 3D glasses and 3D emitter 3D images viewingTo stop the signal emitted from the 3D emitter temporarily Viewing 3D imagesTo convert 2D images to 3D images With the 3D menuEN-27 You can make various settings using the displayed menus Menu operationMenu operation How to set the menusPress the  or  button to select a menu to use Menu items Image menuSetting Function Advanced Menu Setup AutoPicture Menu Reset Screen SizeInstallation menu Feature menu Signal menu Information menu Adjusting projected images To adjust the brightness ContrastTo adjust the color Color and Tint With the Image menuAdjusting projected images To adjust the tone of white Color TempAbout color temperature To enable the stored color temperatureTo optically brighten or darken projected images Iris To change the Iris mode With the remote controlTo use BrilliantColor To adjust the ratio of change in brightness Gamma Mode To enable the stored gamma modeTo use Color Management BLUEMAGENTAREDTo adjust the vertical position LPF Progressive filterAdvanced features Password functionTo enable the password function To cancel the password functionInterval of lamp replacement Replacing the lampWhen the projector is mounted to the ceiling Replacing the lampReset of the lamp operation time Cleaning of the projector and the vents MaintenanceCleaning of the lens Troubleshooting No image appears on the screen ProblemNo image appears on the screen Problem Solution TroubleshootingImages are not displayed correctly Problem Solution Others Problem Solution EN-49 EN-50 Indicators Power Status ConditionCondition Possible Solution Normal conditionSpecifications Dimension drawings unit mmHdmi SerialSupported input signals Specifications3D supported signals Connectors Separately sold itemsCOMPUTER/COMPONENT Video Hdmi 1, Hdmi VLT-HC7800LPZusho Baba, Nagaokakyo-City, Kyoto Japan