Mitsubishi Electronics HL2750U user manual Setting up your projector

Page 10

Setting up your projector

Setting up the screen

Install the screen perpendicularly to the projector. If the screen can not be installed in such a way, adjust the projection angle of the projector. (See below.)

Install the screen and projector so that the projector’s lens is placed at the same height and horizontal position of the screen center.

Do not install the screen where it is exposed to direct sunlight or lighting. Light directly reflecting on the screen makes the projected images whitish and hard to view.

Basic setup

Determine the distance from the screen to the projector according to the size of the images to be projected. (See page 12.)

W

AB

A=B

Depending on the installation conditions, warm air that is emitted from the exhaust vents may flow into the intake vent, causing the projector to display “TEMPERATURE!!” and then stop projecting images.

Correcting skewed or distorted image

This projector is provided with 2 feet for adjusting the projection angle on the bottom surface. Adjust the projection angle depending on the position of the projector.

Adjustment of the vertical position of the projector

For the best projection, project images on a flat screen installed at 90 degrees to the floor. If necessary, tilt the projector using the adjustment foot (for the vertical position) on the bottom of the projector.

Screen

Adjustment foot (for the

 

vertical position)

1.Tilt up the projector to the appropriate angle.

2.Rotate the adjustment foot (for the vertical position) for fine adjustment.

After using the projector:

3.Put the adjustment foot (for the vertical position) back into the projector.

Adjustment of the horizontal position of the projector

Adjust the horizontal position of the projector with the adjustment foot (for the horizontal position) on the bottom.

Important:

Don’t transport the projector with its adjustment feet extended. Otherwise the adjustment feet may be damaged.

When projected images are distorted to a trapezoid

When the screen and the projector are not placed perpendicularly to each other, projected images become trapezoidal. If you cannot make the projector and the screen perpendicular to each other by mechanical adjustments, adjust keystone. (See page 21.)

When the keystone adjustment is applied, the correct aspect ratio may not be obtained.

When the keystone adjustment is applied, the resolution lowers. In addition, vertical stripes ap- pear and straight lines bend in images with com- plicated patterns. To prevent such symptoms, keep the screen and the projector perpendicular to each other as much as possible.

Though the projected image may be distorted momentarily when you change the setting value of the keystone adjustment, such symptom is not a malfunction.

Though the projected image may be distorted depending on the setting value of the keystone adjustment and the type of the input signal, such symptom is not a malfunction. In such a case, adjust the setting value within the range where the projected image is not distorted.

When fine streaks are seen on projected images

This is due to interference with the screen surface and is not a malfunction. Replace the screen or displace the focus a little. (See page 15 or 19 for focus adjustment.)

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Contents HL2750 When using the projector in Europe Compliance NoticeContents Important safeguards Important safeguards Removing the batteries from the remote control Checking accessoriesInserting the batteries into the remote control Preparing your projector Control area Preparating your projector Overview Terminal boardBottom side Remote controlAbout the laser beam Reception angle Using the remote controlOperational range of the remote control Front of projector Rear of projectorSetting up your projector Front projection, ceiling mounting Setting up your projectorWall screen Rear projectionWhen the aspect ratio of the screen is Screen size and projection distanceConnecting the projector to a computer Viewing computer imagesViewing computer images Plugging the power cordAbout DDC Projecting images To stop projecting When connecting to a notebook computerSetting of the resolution AV muteWhen a TV tuner or VCR is connected Connecting the projector to video equipmentConnecting to a video player, etc Viewing video imagesViewing video images Plugging in the power cordConnecting to video equipment having a DVI-D terminal Projector + DVD player or Hdtv decoderEN-19 Volume from the speaker With the remote control Setting the aspect ratioHow to change the settings With the Feature menuSetup Menu operationMenu operation How to set the menusAvailable settings in the menus Image menuInstallation menu Feature menu Signal menu Signal Resolution Memorize menu Signal User menuInformation menu To adjust the color Color and Tint Adjusting projected imagesTo adjust the brightness Contrast and Brightness To cancel the menuAbout color temperature Adjusting projected imagesTo adjust the tone of white Color Temp Color EnhancerEN-30 To adjust the vertical position LPF Progressive filterAdvanced features Setting of the image displayed during startup or mutingTo enable the password function Advanced featuresPassword function To cancel the password functionPicture in Picture PinP ExpandStill Operation Mouse remote controlProjector + computer with USB connector PageUp buttonMajor functions Supervising and controlling by computerConnection Normal condition IndicatorsPossible Solution Abnormal conditionOperation time is reset Interval of lamp replacementReplacing the lamp Replacing the lamp Reset of the lamp operation timeWhen removing the lamp from the ceiling-mounted projector To replace the lampCleaning of the projector and the ventilation slots MaintenanceCleaning of the air-filter Cleaning of the lensTroubleshooting No image appears on the screen Problem SolutionTroubleshooting Images are not displayed correctly Problem SolutionOthers Problem Solution Kensington LockReplacement part option/not included in the box SpecificationsSpecifications XGA85Dimension Drawings unit mm ConnectorsCOMPUTER/COMPONENT Video IN-1/IN-2 Mitsubishi Electric Corporation
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