Benq MP780ST Digital Projector User Manual MP780 ST MW860USTi en

Benq Corporation Digital Projector MP780 ST MW860USTi en

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UserMan_JVPMP780ST 2

Connection26Connecting Video source devicesYou need only connect the projector to a Video source device using just one of the above connecting methods, however each provides a different level of video quality. The method you choose will most likely depend upon the availability of matching terminals on both the projector and the Video source device as described below:Te r m i n a lnameTerminal appearance Reference Picture qualityHDMIHDMI "Connecting an HDMI source device" on page 27 BestComponent VideoCOMPUTER "Connecting a Component Video source device" on page 28BetterS-VideoS-VIDEO "Connecting an S-Video/composite source device" on page 29GoodVideoVIDEONormal

Connection 27Connecting an HDMI source deviceThe projector provides an HDMI input jack that allows you to connect it to an HDMI source device like a DVD player, a DTV tuner, a display or a notebook computer.HDMI (High-Definition Multimedia Interface) supports uncompressed video data transmission between compatible devices like DTV tuners, DVD players and displays over a single cable. It provides pure digital viewing and listening experience.Examine your Video source device to determine if it has a set of unused HDMI output jacks available:• If so, you can continue with this procedure.• If not, you will need to reassess which method you can use to connect to the device.To connect the projector to an HDMI source device:1. Take an HDMI cable and connect one end to the HDMI output jack of the HDMI source device.2. Connect the other end of the cable to the HDMI signal input jack on the projector. Once connected, the audio can be controlled by the projector On-Screen Display (OSD) menus. See "Audio Settings" on page 78 for details.• If the selected video image is not displayed after the projector is turned on and the correct video source has been selected, check that the Video source device is turned on and operating correctly. Also check that the signal cables have been connected correctly.• In the unlikely event that you connect the projector to a DVD player via the projector's HDMI input and the projected picture displays wrong colors, please change the color space to YUV. See "Changing Color Space" on page 37 for details.

Connection28Connecting a Component Video source deviceExamine your Video source device to determine if it has a set of unused Component Video output jacks available: • If so, you can continue with this procedure.• If not, you will need to reassess which method you can use to connect to the device.To connect the projector to a Component Video source device:1. Take a Component Video to VGA (D-Sub) adaptor cable and connect the end with 3 RCA type connectors to the Component Video output jacks of the Video source device. Match the color of the plugs to the color of the jacks; green to green, blue to blue, and red to red.2. Connect the other end of the Component Video to VGA (D-Sub) adaptor cable (with a D-Sub type connector) to the COMPUTER 1 or COMPUTER 2 jack on the projector.3. If you wish to make use of the projector speaker(s) in your presentations, take a suitable audio cable and connect one end of the cable to the audio output jack of the device, and the other end to the AUDIO jack of the projector.4. If you wish, you can use another suitable audio cable and connect one end of the cable to the AUDIO OUT jack of the projector, and the other end to your external speakers (not supplied).Once connected, the audio can be controlled by the projector On-Screen Display (OSD) menus. See "Audio Settings" on page 78 for details.The built-in speaker will be muted when the AUDIO OUT jack is connected.If the selected video image is not displayed after the projector is turned on and the correct video source has been selected, check that the Video source device is turned on and operating correctly. Also check that the signal cables have been connected correctly.

Connection 29Connecting an S-Video/composite source deviceExamine your Video source device to determine if it has an unused S-Video/composite output jack available: • If it has both jacks, use the S-Video output jack for connection as the S-Video terminal provides better picture quality than the Video terminal.• If it has either of the output jack, you can also continue with this procedure.• If not, you will need to reassess which method you can use to connect to the device.To connect the projector to an S-Video/Video source device:1. Take an S-Video/Video cable and connect one end to the S-Video/Video output jack of the Video source device.2. Connect the other end of the S-Video/Video cable to the S-VIDEO/VIDEO jack on the projector.3. If you wish to make use of the projector speaker(s) in your presentations, take a suitable audio cable and connect one end of the cable to the audio output jack of the device, and the other end to the AUDIO (L/R) jack of the projector.4. If you wish, you can use another suitable audio cable and connect one end of the cable to the AUDIO OUT jack of the projector, and the other end to your external speakers (not supplied).Once connected, the audio can be controlled by the projector On-Screen Display (OSD) menus. See "Audio Settings" on page 78 for details.The built-in speaker will be muted when the AUDIO OUT jack is connected.• If the selected video image is not displayed after the projector is turned on and the correct video source has been selected, check that the Video source device is turned on and operating correctly. Also check that the signal cables have been connected correctly.

Operation 314. If the projector is activated for the first time, select your OSD language following the on-screen instructions.5. If you are prompted for a password, press the arrow keys to enter a six digit password. See "Utilizing the password function" on page 35 for details.6. Switch all of the connected equipment on.7. The projector will start to search for input signals. The current input signal being scanned displays in the screen. If the projector doesn't detect a valid signal, the message 'No Signal' will continue displaying until an input signal is found.You can also press SOURCE on the projector or remote control to select your desired input signal. See "Switching input signal" on page 37 for details.If the frequency/resolution of the input signal exceeds the projector's operating range, you will see the message 'Out of Range' displayed on a screen. Please change to an input signal which is compatible with the projector's resolution or set the input signal to a lower setting. See "Timing chart" on page 101 for details.

Operation32Adjusting the projected imageAdjusting the projection angleThe projector is equipped with 1 quick-release adjuster foot and 1 rear adjuster foot. These adjusters change the image height and projection angle. To adjust the projector:1. Press the quick-release button and lift the front of the projector. Once the image is positioned where you want it, release the quick-release button to lock the foot in position.2. Screw the rear adjuster foot to fine tune the horizontal angle.To retract the foot, hold up the projector while pressing the quick-release button, then slowly lower the projector. Screw the rear adjuster foot in a reverse direction.If the projector is not placed on a flat surface or the screen and the projector are not perpendicular to each other, the projected image becomes trapezoidal. To correct this situation, see "Correcting keystone" on page 33 for details.• Do not look into the lens while the lamp is on. The strong light from the lamp may cause damage to your eyes.• Be careful when you press the adjuster button as it is close to the exhaust vent where hot air comes from.Auto-adjusting the imageIn some cases, you may need to optimize the picture quality. To do this, press AUTO on the projector or remote control. Within 3 seconds, the built-in Intelligent Auto Adjusent function will re-adjust the values of Frequency and Clock to provide the best picture quality. • The screen will be blank while AUTO is functioning.• This function is only available when PC signal (analog RGB) is selected.12

Operation 33Fine-tuning the image size and clarity1. Sharpen the image by using the focus ring/focus slide lever.Correcting keystoneKeystoning refers to the situation where the projected image is noticeably wider at either the top or bottom. It occurs when the projector is not perpendicular to the screen. To correct this, besides adjusting the height of the projector, you will need to manually correct it following one of these steps.• Using the remote controlPress / on the projector or remote control to display the Keystone correction page. Press to correct keystoning at the top of the image. Press to correct keystoning at the bottom of the image.•Using the OSD menu1. Press MENU/EXIT and then press / until the DISPLAY menu is highlighted.2. Press to highlight Keystone and press MODE/ENTER. The Keystone correction page displays.3. Press to correct keystoning at the top of the image or press to correct keystoning at the bottom of the image.MP780 ST+ MW860USTiPress /.Press /.

Operation34Using the menusThe projector is equipped with On-Screen Display (OSD) menus for making various adjusents and settings.Below is the overview of the OSD menu.The following example describes how to set the OSD language.1. Press MENU/EXIT on the projector or remote control to turn the OSD menu on.3. Press to highlight Language and press / to select a preferred language.2. Use / to highlight the SYSTEM SETUP: Basic menu.4. Press MENU/EXIT twice* on the projector or remote control to leave and save the settings.*The first press leads you back to the main menu and the second press closes the OSD menu.Current input signalMain menu iconMain menuSub-menuHighlightPress MENU/EXIT to the previous page or to exit.Status

Operation 35Securing the projectorUsing a security cable lockThe projector has to be installed in a safe place to prevent theft. Otherwise, purchase a lock, such as the Kensington lock, to secure the projector. You can locate a Kensington lock slot on the rear side of the projector. See item 22 on page 10 for details.A Kensington security cable lock is usually a combination of key(s) and the lock. Refer to the lock's documentation for finding out how to use it.Utilizing the password functionFor security purposes and to help prevent unauthorized use, the projector includes an option for setting up password security. The password can be set through the On-Screen Display (OSD) menu.WARNING: You will be inconvenienced if you activate the power-on lock functionality and subsequently forget the password. Print out this manual (if necessary) and write the password you used in this manual, and keep the manual in a safe place for later recall.Setting a passwordOnce a password has been set, the projector cannot be used unless the correct password is entered every time the projector is started.1. Open the OSD menu and go to the SYSTEM SETUP: Advanced > Security Settings menu. Press MODE/ENTER. The Security Settings page displays.2. Highlight Change Security Settings and press MODE/ENTER.3. Highlight Power on Lock and select On by pressing / .4. As pictured to the right, the four arrow keys ( , , , ) respectively represent 4 digits (1, 2, 3, 4). According to the password you desire to set, press the arrow keys to enter six digits for the password.5. Confirm the new password by re-entering the new password.Once the password is set, the OSD menu returns to the Security Settings page.IMPORTANT: The digits being input will display as asterisks on-screen. Write your selected password down here in this manual in advance or right after the password is entered so that it is available to you should you ever forget it.Password: __ __ __ __ __ __Keep this manual in a safe place.6. To leave the OSD menu, press MENU/EXIT.If you forget the passwordIf the password function is activated, you will be asked to enter the six-digit password every time you turn on the projector. If you enter the wrong password, the password error message as pictured to the right displays lasting for three seconds, and the message 'INPUT PASSWORD' follows. You can retry by

Operation36entering another six-digit password, or if you did not record the password in this manual, and you absolutely do not remember it, you can use the password recall procedure. See "Entering the password recall procedure" on page 36 for details.If you enter an incorrect password 5 times in succession, the projector will automatically shut down in a short time.Entering the password recall procedure1. Press and hold AUTO on the projector or remote control for 3 seconds. The projector will display a coded number on the screen.2. Write down the number and turn off your projector.3. Seek help from the local BenQ service center to decode the number. You may be required to provide proof of purchase documentation to verify that you are an authorized user of the projector.Changing the password1. Open the OSD menu and go to the SYSTEM SETUP: Advanced > Security Settings > Change password menu.2. Press MODE/ENTER. The message 'INPUT CURRENT PASSWORD' displays.3. Enter the old password.• If the password is correct, another message 'INPUT NEW PASSWORD' displays. • If the password is incorrect, the password error message displays lasting for three seconds, and the message 'INPUT CURRENT PASSWORD' displays for your retry. You can press MENU/EXIT to cancel the change or try another password.4. Enter a new password.IMPORTANT: The digits being input will display as asterisks on-screen. Write your selected password down here in this manual in advance or right after the password is entered so that it is available to you should you ever forget it.Password: __ __ __ __ __ __Keep this manual in a safe place.5. Confirm the new password by re-entering the new password.6. You have successfully assigned a new password to the projector. Remember to enter the new password next time the projector is started.7. To leave the OSD menu, press MENU/EXIT.

Operation 37Disabling the password functionTo disable password protection, go back to the SYSTEM SETUP: Advanced > Security Settings > Change Security Settings > Power on Lock menu after opening the OSD menu system. Select Off by pressing / . The message 'INPUT PASSWORD' displays. Enter the current password. • If the password is correct, the OSD menu returns to the Security Settings page with 'Off' shown in the row of Power on Lock. You will not have to enter the password next time you turn on the projector.• If the password is incorrect, the password error message displays lasting for three seconds, and the message 'INPUT PASSWORD' displays for your retry. You can press MENU/EXIT to cancel the change or try another password.Though the password function is disabled, you need to keep the old password in hand should you ever need to re-activate the password function by entering the old password.Switching input signalThe projector can be connected to multiple devices at the same time. However, it can only display one full screen at a time. When starting up, the projector automatically searches for the available signals.Be sure the Quick Auto Search function in the SOURCE menu is On (which is the default of this projector) if you want the projector to automatically search for the signals.You can also manually cycle through the available input signals.1. Press SOURCE on the projector or remote control. A source selection bar displays. 2. Press / until your desired signal is selected and press MODE/ENTER.Once detected, the selected source information will display on the screen for seconds. If there is multiple equipment connected to the projector, repeat steps 1-2 to search for another signal.• The brightness level of the projected image will change accordingly when you switch between different input signals. Data (graphic) "PC" presentations using mostly static images are generally brighter than "Video" using mostly moving images (movies).• The input signal type effects the options available for the Picture Mode. See "Selecting a picture mode" on page 40 for details.• The native display resolution is in a 16:10 aspect ratio. For best display picture results, you should select and use an input signal which outputs at this resolution. Any other resolutions will be scaled by the projector depending upon the 'aspect ratio' setting, which may cause some image distortion or loss of picture clarity. See "Selecting the aspect ratio" on page 39 for details.Changing Color Space

Operation38In the unlikely event that you connect the projector to a DVD player via the projector's HDMI input and the projected picture displays wrong colors, please change the color space to YUV.1. Press MENU/EXIT and then press / until the SOURCE menu is highlighted.2. Press to highlight Color Space Conversion and press / to select a suitable color space.This function is only available when the HDMI input port is in use.Magnifying and searching for detailsIf you need to find the details on the projected picture, magnify the picture. Use the direction arrow keys for navigating the picture.• Using the remote control1. Press ZOOM+/ZOOM- to display the Zoom bar.2. Press ZOOM + to magnify the center of the picture. Press the key repeatedly until the picture size is suitable for your need.3. Use the directional arrows ( , , , ) on the projector or remote control to navigate the picture.4. To restore the picture to its original size, press AUTO. You can also press ZOOM -. When the key is pressed again, the picture is further reduced until it is restored to the original size.•Using the OSD menu1. Press MENU/EXIT and then press / until the DISPLAY menu is highlighted.2. Press to highlight Digital Zoom and press MODE/ENTER. The Zoom bar displays.3. Repeat steps 2-4 in the section of "Using the remote control" above. Or if you are using the projector control panel, continue to the following steps.4. Press on the projector repeatedly to magnify the picture to a desired size.5. To navigate the picture, press MODE/ENTER to switch to the paning mode and press the directional arrows ( , , , ) to navigate the picture.6. Use the directional arrows ( , , , ) on the projector or remote control to navigate the picture.7. To reduce size of the picture, press MODE/ENTER to switch back to the zoom in/out functionality, and press AUTO to restore the picture to its original size. You can also press repeatedly until it is restored to the original size.The picture can only be navigated after the picture is magnified. You can further magnify the picture while searching for details.

Operation 39Selecting the aspect ratioThe 'aspect ratio' is the ratio of the image width to the image height.With the advent of digital signal processing, digital display devices like this projector can dynamically stretch and scale the image output to a different aspect than that of the image input signal. To change the projected image ratio (no matter what aspect the source is):• Using the remote control1. Press ASPECT to show the current setting.2. Press ASPECT repeatedly to select an aspect ratio to suit the format of the video signal and your display requirements.•Using the OSD menu1. Press MENU/EXIT and then press / until the DISPLAY menu is highlighted.2. Press to highlight Aspect Ratio.3. Press / to select an aspect ratio to suit the format of the video signal and your display requirements.About the aspect ratioIn the pictures below, the black portions are inactive areas and the white portions are active areas. OSD menus can be displayed on those unused black areas.1. Auto: Scales an image proportionally to fit the projector's native resolution in its horizontal or vertical width. This is suitable for the incoming image which is neither in 4:3 nor 16:9 and you want to make most use of the screen without altering the image's aspect ratio.2. Real: The image is projected as its original resolution, and resized to fit within the display area. For input signals with lower resolutions, the projected image will display smaller than if resized to full screen. You could adjust the zoom setting or move the projector towards the screen to increase the image size if necessary. You may also need to refocus the projector after making these adjusents.3. 4:3: Scales an image so that it is displayed in the center of the screen with a 4:3 aspect ratio. This is most suitable for 4:3 images like computer monitors, standard definition TV and 4:3 aspect DVD movies, as it displays them without aspect alteration.16:10 picture16:9 picture4:3 picture16:9 picture4:3 picture

Operation404. 16:9: Scales an image so that it is displayed in the center of the screen with a 16:9 aspect ratio. This is most suitable for images which are already in a 16:9 aspect, like high definition TV, as it displays them without aspect alteration.5. 16:10: Scales an image so that it is displayed in the center of the screen with a 16:10 aspect ratio. This is most suitable for images which are already in a 16:10 aspect, like high definition TV, as it displays them with out aspect alteration.Optimizing the imageSelecting a picture modeThe projector is preset with several predefined picture modes so that you can choose one to suit your operating environment and input signal picture type.To select an operation mode that suits your need, you can follow one of the following steps.•Press MODE/ENTER on the remote control or projector repeatedly until your desired mode is selected.• Go to the PICTURE > Picture Mode menu and press / to select a desired mode.The picture modes are listed below.1. Dynamic mode: Maximizes the brightness of the projected image. This mode is suitable for environments where extra-high brightness is required, such as using the projector in well lit rooms.2. Presentation mode (Default): Is designed for presentations. The brightness is emphasized in this mode.3. sRGB mode: Maximizes the purity of RGB colors to provide true-to-life images regardless of brightness setting. It is most suitable for viewing photos taken with an sRGB compatible and properly calibrated camera, and for viewing PC graphic and drawing applications such as AutoCAD.4. Cinema mode: Is appropriate for playing colorful movies, video clips from digital cameras or DVs through the PC input for best viewing in a blackened (little light) environment.5. User 1/User 2 mode: Recalls the settings customized based on the current available picture modes. See "Setting the User 1/User 2 mode" on page 41 for details.Picture mode is fixed in Presentation mode when PointDraw™ function is on.16:9 picture16:10 picture

Operation 41Setting the User 1/User 2 modeThere are two user-definable modes if the current available picture modes are not suitable for your need. You can use one of the picture modes (except the User 1/User 2) as a starting point and customize the settings.1. Press MENU/EXIT to open the On-Screen Display (OSD) menu.2. Go to the PICTURE > Picture Mode menu.3. Press / to select User 1 to User 2.4. Press to highlight Reference Mode.This function is only available when User 1 or User 2 mode is selected up in the Picture Mode sub-menu item.5. Press / to select a picture mode that is closest to your need.6. Press to select a sub-menu item to be changed and adjust the value with / . See "Fine-tuning the image quality in user modes" below for details.7. When all settings have been done, highlight Save Settings and press MODE/ENTER to store the settings.8. The confirmation message 'Setting Saved' displays.Using Wall ColorIn the situation where you are projecting onto a colored surface such as a painted wall which may not be white, the Wall Color feature can help correct the projected picture’s color to prevent possible color difference between the source and projected pictures.To use this function, go to the DISPLAY > Wall Color menu and press / to select a color which is the closest to the color of the projection surface. There are several precalibrated colors to choose from: Light Yellow, Pink, Light Green, Blue, and Blackboard.Fine-tuning the image quality in user modesAccording to the detected signal type, there are some user-definable functions available when User 1 or User 2 mode is selected. Based on your needs, you can make adjusents tothese functions by highlighting them and pressing / on the projector or remote controlAdjusting BrightnessThe higher the value, the brighter the image. And the lower the setting, the darker the image. Adjust this control so the black areas of the image appear just as black and that detail in the dark areas is visible.Adjusting ContrastThe higher the value, the greater the contrast. Use this to set the peak white level after you have previously adjusted the Brightness setting to suit your selected input and viewing environment.Adjusting ColorLower setting produces less saturated colors. If the setting is too high, colors on the image will be overpowering, which makes the image unrealistic.Adjusting TintThe higher the value, the more reddish the picture becomes. The lower the value, the more greenish the picture becomes.+50+30 +700+30 -30

Operation42Adjusting SharpnessThe higher the value, the sharper the picture becomes. The lower the value, the softer the picture becomes.Adjusting Brilliant ColorThis feature utilizes a new color-processing algorithm and system level enhancements to enable higher brightness while providing truer, more vibrant colors in picture. It enables a greater than 50% brightness increase in mid-tone images, which are common in video and natural scenes, so the projector reproduces images in realistic and true colors. If you prefer images with that quality, select On. If you don’t need it, select Off.On is the default and recommended selection for this projector. When Off is selected, the Color Temperature function is not available.Selecting a Color TemperatureThe options available for color temperature* settings vary according to the signal type selected.1. T1: With the highest color temperature, T1 makes the image appear the most bluish white than other settings.2. T2: Makes images appear bluish white.3. T3: Maintains normal colorings for white.4. T4: Makes images appear reddish white.*About color temperatures:There are many different shades that are considered to be "white" for various purposes. One of the common methods of representing white color is known as the “color temperature”. A white color with a low color temperature appears to be reddish white. A white color with a high color temperature appears to have more blue in it.3D Color ManagementIn most installation situations, color management will not be necessary, such as in classroom, meeting room, or lounge room situations where lights remain on, or where building external windows allow daylight into the room. Only in permanent installations with controlled lighting levels such as boardrooms, lecture theaters, or home theaters, should color management be considered. Color management provides fine color control adjusent to allow for more accurate color reproduction, should you require it.Proper color management can only be achieved under controlled and reproducible viewing conditions. You will need to use a colorimeter (color light meter), and provide a set of suitable source images to measure color reproduction. These tools are not provided with the projector, however, your projector supplier should be able to provide you with suitable guidance, or even an experienced professional installer.The Color Management provides six sets (RGBCMY) of colors to be adjusted. When you select each color, you can independently adjust its range and saturation according to your preference.If you have purchased a test disc which contains various color test patterns and can be used to test the color presentation on monitors, TVs, projectors, etc. You can project any image from the disc on the screen and enter the 3D Color Management menu to make adjusents.To adjust the settings:1. Go to the PICTURE menu and highlight 3D Color Management.

Operation 432. Press MODE/ENTER and the 3D Color Management page displays.3. Highlight Primary Color and press / to select a color from among Red, Yellow, Green, Cyan, Blue, or Magenta.4. Press to highlight Hue and press / to select its range. Increase in the range will include colors consisted of more proportions of its two adjacent colors.Please refer to the illustration to the right for how the colors relate to each other.For example, if you select Red and set its range at 0, only pure red in the projected picture will be selected. Increasing its range will include red close to yellow and red close to magenta.5. Press to highlight Saturation and adjust its values to your preference by pressing /. Every adjusent made will reflect to the image immediately.For example, if you select Red and set its value at 0, only the saturation of pure red will be affected.Saturation is the amount of that color in a video picture. Lower settings produce less saturated colors; a setting of “0” removes that color from the image entirely. If the saturation is too high, that color will be overpowering and unrealistic.6. Press to highlight Gain and adjust its values to your preference by pressing /. The contrast level of the primary color you select will be affected. Every adjusent made will reflect to the image immediately. 7. Repeat steps 3 to 6 for other color adjusents.8. Make sure you have made all of the desired adjusents.9. Press MENU/EXIT to exit and save the settings.REDBLUEGREENYellowCyanMagenta

Operation 45Setting the presentation timerThe presentation timer can indicate the presentation time on the screen to help you achieve better time management when giving presentations. Follow these steps to utilize this function:1. Go to the SYSTEM SETUP: Basic > Presentation Timer menu and press MODE/ENTER to display the Presentation Timer page.2. Highlight Timer period and decide the timer period by pressing / . The length of time can be set from 1 to 5 minutes in 1-minute increments and 5 to 240 minutes in 5-minute increments.3. Press to highlight Timer display and choose if you want the timer to show up on the screen by pressing /.4. Press to highlight Timer position and set the timer position by pressing / .Top-Left Bottom-Left Top-Right Bottom-Right5. Press to highlight Timer counting direction and select your desired counting direction by pressing / .6. Press to highlight Sound Reminder and decide if you want to activate sound reminder by pressing / . If you select On, a double beep sound will be heard at the last 30 seconds of counting down/up, and a triple beep sound will be produced when the timer is up.7. To activate the presentation timer, press and press / to select On and press MODE/ENTER.8. A confirmation message displays. Highlight Yes and press MODE/ENTER to confirm. You will see the message “Timer is On” displaying on the screen. The timer starts counting at the time the timer is on.To cancel the timer, perform the following steps:1. Go to the SYSTEM SETUP: Basic > Presentation Timer menu and highlight Off.Press MODE/ENTER. A confirmation message displays.2. Highlight Yes and press MODE/ENTER to confirm. You will see the message “Timer is Off!” displaying on the screen.Selection DescriptionAlways Displays the timer on screen throughout the presentation time.Last 1 Min/Last 2 Min/Last 3 Min Displays the timer on screen in the last 1/2/3 minute(s).Never Hides the timer throughout the presentation time.Selection DescriptionCount Up Increases from 0 to the preset time.Count Down Decrease from the preset time to 0.

Operation46Remote paging operationsConnect the projector to your PC or notebook with a USB cable prior to using the paging function. See "Connecting a computer" on page 23 for details.You can operate your display software program (on a connected PC) which responds to page up/down commands (like Microsoft PowerPoint) by pressing PAGE UP/DOWN on the remote control. If remote paging function doesn't work, check if the USB connection is correctly made and the mouse driver on your computer is updated to the latest version.Hiding the imageIn order to draw the audience's full attention to the presenter, you can use BLANK on the projector or remote control to hide the screen image. Press any key on the projector or remote control to restore the image. The word 'BLANK' appears at the screen while the image is hidden. When this function is activated with an audio input connected, the audio can still be heard.You can set the blank time in the SYSTEM SETUP: Basic > Operation Settings > Blank Timer menu to let the projector return the image automatically after a period of time when there is no action taken on the blank screen. The length of time can be set from 5 to 30 minutes in 5-minute increments.• Do not block the projection lens from projecting as this could cause the blocking object to become heated.• No matter Blank Timer is activated or not, you can press any key (except the PAGE UP/DOWN key) on the projector or remote control to restore the picture.Freezing the imagePress FREEZE on the remote control to freeze the image. The word 'FREEZE' will display in the screen. To release the function, press any key (except the PAGE UP/DOWN key) on the projector or remote control.Even if an image is frozen on the screen, the pictures are running on the video or other device. If the connected devices have active audio output, you will still hear the audio even though the image is frozen on screen.

Operation 47Utilizing FAQ functionThe INFORMATION menu contains possible solutions to problems encountered by users regarding image quality, installation, special feature operation and service information.To get the FAQ information:1. Press on the remote control or press MENU/EXIT to open the OSD menu and press / to highlight the INFORMATION menu.2. Press to highlight FAQ-Image and Installation or FAQ-Features and Service based on the information you want to know.3. Press MODE/ENTER.4. Press / to select a problem and press MODE/ENTER for possible solutions.5. Press MENU/EXIT to exit the OSD.Locking control keysWith the control keys on the projector locked, you can prevent your projector settings from being changed accidentally (by children, for example). When the Panel Key Lock is on, no control keys on the projector will operate except Power.1. Press / on the projector or remote control or go to the SYSTEM SETUP: Basic > Panel Key Lock menu, and select On by pressing / on the projector or remote control.2. A confirmation message displays. Select Yes to confirm.To release panel key lock, press and hold / for 3 seconds on the projector or remote control.You can also use the remote control to enter the SYSTEM SETUP: Basic > Panel Key Lock and press / to select Off.• Keys on the remote control are still in use when panel key lock is enabled.• If you press Power to turn off the projector without disabling panel key lock, the projector will still be in locked status the next time it is turned on.

Operation48Operating in a high altitude environmentWe recommend you use the High Altitude Mode when your environment is between 1500 m –3000 m above sea level, and ambient temperature is between 0°C–35°C.Do not use the High Altitude Mode if your altitude is between 0 m and 1500 m and ambient temperature is between 0°C and 35°C. The projector will be over cooled, if you turn the mode on under such a condition.To activate the High Altitude Mode:1. Press MENU/EXIT and then press / until the SYSTEM SETUP: Advanced menu is highlighted.2. Press to highlight High Altitude Mode and press / to select On. A confirmation message displays.3. Highlight Yes and press MODE/ENTER.Operation under "High Altitude Mode" may cause a higher decibel operating noise level because of increased fan speed necessary to improve overall system cooling and performance.If you use this projector under other extreme conditions excluding the above, it may display auto shut-down symptoms, which is designed to protect your projector from over-heating. In cases like this, you should switch to High Altitude mode to solve these symptoms. However, this is not to state that this projector can operate under any and all harsh or extreme conditions.Adjusting the soundThe sound adjusents made as below will have an effect on the projector speaker(s). Be sure you have made a correct connection to the projector audio input. See "Connection" on page 21 for how the audio input is connected.Muting the soundTo adjust the sound level, press MUTE on the remote control, or:1. Press MENU/EXIT and then press / until the SYSTEM SETUP: Advanced menu is highlighted.2. Press to highlight Audio Settings and press MODE/ENTER. The Audio Settings page displays.3. Highlight Mute and select On.Adjusting the sound levelTo adjust the sound level, press VOLUME+/VOLUME- on the remote control, or:1. Repeat steps 1-2 above.2. Highlight VOLUME and select a desired sound level.Turning off the Power on/off ring toneTo turn off the ring tone:1. Repeat steps 1-2 in Muting the sound section.

Operation50Controlling the projector through a LANenvironmentNetwork Settings allow you to manage the projector from a computer using a web browser when the computer and the projector are properly connected to the same local area network.Configuring the Wired LAN SettingsIf you are in a DHCP environment:1. Take a RJ45 cable and connect one end to the LAN input jack of the projector and the other end to the RJ45 port.2. Press MENU/EXIT and then press / until the SYSTEM SETUP: Advanced menu is highlighted.3. Press to highlight Network Settings and press MODE/ENTER. The Network Settings page displays.4. Press to highlight Wired LAN and press MODE/ENTER.5. Press to highlight DHCP and press / to select On.6. Press to highlight Apply and press MODE/ENTER.7. Re-enter the Wired LAN page. The IP Address, Subnet Mask, Default Gateway, and DNS settings will be displayed. Note down the IP address.If the IP Address still does not display, contact your ITS administrator.If you are in a non-DHCP environment:1. Repeat steps 1-4 above.2. Press to highlight DHCP and press / to select Off.3. Contact your ITS administrator for information on the IP Address, Subnet Mask, Default Gateway, and DNS settings.4. Press to select the item you want to modify and enter the value.5. Press to highlight Apply and press MODE/ENTER.Configuring the Wireless LAN Settings1. Connect the BenQ wireless dongle (optional) to the USB TYPE-A input jack of the projector.2. Highlight Wireless LAN in SYSTEM SETUP: Advanced > Network Settings menu and press MODE/ENTER.3. For AP mode connection, you need to note SSID information, then search the projector with the same SSID in Q Presenter to start projection. For

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