BenQ MH741 User Manual
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BenQ MH741 User Manual

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MH741
Digital Projector
User Manual

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Summary of Contents for BenQ MH741

  • Page 1 MH741 Digital Projector User Manual...

  • Page 2: Table Of Contents

    Table of contents Important safety Operating in a high altitude environment..........41 instructions ....3 Adjusting the sound ....... 41 Introduction....7 Using the test pattern......42 Using the teaching templates ....43 Projector features........7 Using the quick install......43 Shipping contents ........8 Shutting down the projector ....

  • Page 3: Important Safety Instructions

    Important safety instructions Your projector is designed and tested to meet the latest standards for safety of information technology equipment. However, to ensure safe use of this product, it is important that you follow the instructions mentioned in this manual and marked on the product. Safety Instructions Please read this manual before Always open the lens shutter or...
  • Page 4 Safety Instructions Do not block the projection lens with Never replace the lamp assembly or any objects when the projector is any electronic components unless the under operation as this could cause projector is unplugged. the objects to become heated and deformed or even cause a fire.
  • Page 5 Safety Instructions (Continued) When the projector is under Do not block the ventilation holes. operation, you may sense some - Do not place this projector on a blanket, bedding or any other soft heated air and odor from its surface. ventilation grill.
  • Page 6 We want you to have a pleasant experience using your BenQ projector, so we need to bring possible injury. this safety matter to your attention to prevent possible damage to person and property.

  • Page 7: Introduction

    3D Function supported Various 3D formats make the 3D function more flexible. By presenting the depth of the images, you can wear BenQ 3D glasses to enjoy the 3D movies, videos and sporting events in a more realistic way. •...

  • Page 8: Shipping Contents

    Shipping contents Carefully unpack and verify that you have all of the items shown below. If any of these items are missing, please contact your place of purchase. Standard accessories The supplied accessories will be suitable for your region, and may differ from those illustrated. Projector Remote control with battery Power cord...

  • Page 9: Projector Exterior View

    Projector exterior view Lamp compartment cover External control panel Front/upper side (See "Projector" on page 11 details.) Focus ring and Zoom ring Vent (cool air intake) Lens cap & string Projection lens Front IR remote sensor HDMI-1 input jack VIDEO input jack Rear/lower side HDMI-2/MHL input jack Audio (L/R) input jack...

  • Page 10: Bottom Side

    Front adjuster foot Ceiling mount holes Bottom side Rear adjuster foot Introduction...

  • Page 11: Controls And Functions

    Controls and functions Projector POWER indicator light Lights up or flashes when the projector is under operation. See "Indicators" on page 63 for details. Keystone/Arrow keys ( /▲ Up) Manually corrects distorted images resulting from an angled projection. See "Correcting 2D Keystone" on page 26 details.

  • Page 12: Remote Control

    Remote Control LASER Emits visible laser pointer light for presentation purposes. MHL control buttons Goes to the previous file/Plays/Pauses/ Goes to the next file/Rewinds/Stops/ Fastforwards during media playback. Only available when controlling your smart device in MHL mode. ZOOM+/ZOOM- Magnifies or reduces the projected picture size.
  • Page 13 Operating the LASER pointer 16. ► Right/ The Laser Pointer is a Increases the projector volume. presentation aid for When the On-Screen Display (OSD) professionals. It emits a menu is activated, the #3, #5, and #16 beam of red light when you keys are used as directional arrows to press it.
  • Page 14 (Available in Japan region) ZOOM+/ZOOM- Magnifies or reduces the projected picture size. ASPECT Selects the display aspect ratio. FREEZE Freezes the projected image. 10. NETWORK SETTING Displays the Network Settings OSD menu. 11. Numeric buttons Enters numbers in network settings. Numeric buttons 1, 2, 3, 4 cannot be pressed when asked to enter password.
  • Page 15 18. MIC/VOL +/MIC/VOL - Microphone input level adjustment. 19. MUTE Toggles projector audio between on and off. 20. SMART ECO Switch the lamp mode between Eco/ Normal and SmartEco. 21. TEST Displays the test pattern. Introduction...

  • Page 16: Remote Control Effective Range

    Remote control effective range Infra-Red (IR) remote control sensor is located on the front and the rear of the projector. The remote control must be held at an angle within 30 degrees perpendicular to the projector's IR remote control sensor to function correctly. The distance between the remote control and the sensor should not exceed 8 meters (~ 26 feet).

  • Page 17: Replacing The Remote Control Battery

    Replacing the remote control battery To open the battery cover, turn the remote control over to view its back, push on the finger grip on the cover and slide it up in the direction of the arrow as illustrated. The cover will slide off. Remove any existing batteries (if necessary) and install two AAA batteries observing the battery polarities as indicated in the base of the battery compartment.

  • Page 18: Positioning Your Projector

    Purchase the BenQ Projector Ceiling Note that a special rear projection screen Mounting Kit from your dealer to mount and the BenQ Projector Ceiling Mounting your projector on the ceiling. Kit are required for this installation location.

  • Page 19: Obtaining A Preferred Projected Image Size

    Obtaining a preferred projected image size The distance from the projector lens to the screen, the zoom setting (if available), and the video format each factors in the projected image size. Projection dimensions Refer to "Dimensions" on page 66 for the center of lens dimensions of this projector before calculating the appropriate position.
  • Page 20 8767 9896 There is 5% tolerance among these numbers due to optical component variations. BenQ recommends that if you intend to permanently install the projector, you should physically test the projection size and distance using the actual projector before you permanently install it, so as to make allowance for this projector's optical characteristics.

  • Page 21: Connection

    Connection When connecting a signal source to the projector, be sure to: Turn all equipment off before making any connections. Use the correct signal cables for each source. Ensure the cables are firmly inserted. In the connections shown below, some cables may not be included with the projector (see "Shipping contents"...

  • Page 22: Connecting Video Source Devices

    FN and the labeled function key simultaneously. Refer to your notebook's documentation to find your notebook's key combination. Connecting video source devices You need only connect the projector to a video source device using just one of the 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: Terminal name...

  • Page 23: Playing Sound Through The Projector

    Playing sound through the projector You can make use of the projector (mixed mono) speaker in your presentations, and also connect separate amplified speakers to the AUDIO OUT socket of the projector. If you have a separate sound system, you will most likely want to connect the audio output of your Video source device to that sound system, instead of to the mono audio projector.

  • Page 24: Operation

    Operation Starting up the projector Remove the lens cap. Plug the power cord into the projector and into a wall socket. Turn on the wall socket switch (where fitted). Check that the POWER indicator light on the projector lights orange after power has been applied.

  • Page 25: Adjusting The Projected Image

    Adjusting the projected image Adjusting the projection angle The projector is equipped with 1 front adjuster foot and 1 rear adjuster foot. These adjusters change the image height and projection angle. To adjust the projector: Screw the front adjuster foot. Once the image is positioned where you want it.
  • Page 26 Correcting 2D Keystone 2D Keystone function enables a wider projector installation area compared to conventional projectors with limited positioning in front of the screen. To correct this, you will need to manually correct it following one of these steps. • Using the projector or remote control Press on the projector or remote...
  • Page 27 Correcting Corner Fit Manually adjust four corners of the image by setting the horizontal and vertical values. • Using the OSD menu Press MENU/EXIT and then press ◄/► until Display menu is highlighted. Press ▼ to highlight Corner Fit and press MODE/ENTER.

  • Page 28: Using The Menus

    Using the menus The projector is equipped with On-Screen Display (OSD) menus for making various adjustments and settings. Below is the overview of the OSD menu. Main menu icon Main menu Status Highlight Sub-menu Press MENU/ EXIT to the previous page or to exit.

  • Page 29: Securing The Projector

    Securing the projector Using a security cable lock The projector has to be installed in a safe place to prevent theft. Otherwise, purchase a lock, such as a Kensington lock, to secure the projector. You can locate a Kensington lock slot on the left side of the projector.

  • Page 30: If You Forget The Password

    BenQ the screen. Customer Center. Write down the number and turn off your projector. Seek help from the local BenQ service Recall code: 12345678 center to decode the number. You may be required to provide proof of purchase...

  • Page 31: Changing The Password

    Changing the password Open the OSD menu and go to the System Setup: Advanced > Security Settings > Change password menu. Press MODE/ENTER. The message 'INPUT CURRENT PASSWORD' displays. Enter the old password. • If the password is correct, another message 'INPUT NEW PASSWORD' displays.

  • Page 32: Switching Input Signal

    Switching input signal The projector can be connected to multiple devices at the same time. However, it can only display one full screen at a time. 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.

  • Page 33: Magnifying And Searching For Details

    Magnifying and searching for details If 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 control Press Digital Zoom+/- to display the Zoom bar. Press Digital Zoom+ to magnify the center of the picture.
  • Page 34 About the aspect ratio In 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. Auto: Scales an image 4:3: Scales an image so that it is proportionally to fit the projector's displayed in the center of the screen native resolution in its horizontal...

  • Page 35: Optimizing The Image

    Optimizing the image Using Wall Color In 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 >...

  • Page 36: Adjusting Brightness

    Setting the User 1/User 2 mode There 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. Press MENU/EXIT to open the On-Screen Display (OSD) menu.

  • Page 37: Selecting A Color Temperature

    Selecting a Color Temperature The options available for color temperature* settings vary according to the signal type selected. Cooler: makes the image appear bluish white. Normal: Maintains normal colorings for white. Warm: Makes images appear reddish white. *About color temperatures: There are many different shades that are considered to be "white"...
  • Page 38 Press MODE/ENTER and the 3D Color Management page displays. Highlight Primary color and press ◄/► to select a color from among Red, Green, Blue, Cyan, Magenta and Yellow. 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.

  • Page 39: Setting The Presentation Timer

    Setting the presentation timer 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: Go to the System Setup: Basic > Presentation Timer menu and press MODE/ ENTER to display the Presentation Timer page.

  • Page 40: Remote Paging Operations

    Remote paging operations Connect the projector to your PC or notebook with a USB cable prior to using the paging function. See "Connection" on page 21 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 +/PAGE - on the remote control.

  • Page 41: Locking Control Keys

    Locking control keys With 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.

  • Page 42: Using The Test Pattern

    Muting the sound To temporarily turn off the sound, • Using the remote control Press MUTE to temporarily turn off the sound. While the sound is off, the screen will display in the upper right corner of the screen. To restore the sound, press MUTE again. •...

  • Page 43: Using The Teaching Templates

    Using the teaching templates The projector provides several preset patterns for various teaching purposes. To activate the pattern: Open the OSD menu and go to the Display > Teaching Template and press ▲/▼ to select Blackboard or Whiteboard. Press ◄/► to choose the pattern you need. Press MODE/ENTER to activate the pattern.

  • Page 44: Shutting Down The Projector

    Shutting down the projector Press POWER or OFF and a confirmation message will appear prompting you. If you don't respond in a few seconds, the message will disappear. Press POWER or OFF a second time. The POWER indicator light flashes orange, the projection lamp shuts down, and the fans will continue to run for approximately 90 seconds to cool down the projector.

  • Page 45: Menu Operation

    Menu operation Menu system Please note that the on-screen display (OSD) menus vary according to the signal type selected. Main menu Sub-menu Options Off/Light Yellow/Pink/Light Green/ Wall color Blue/Blackboard Aspect Ratio Auto/Real/4:3/16:9/16:10 Auto Keystone On/Off 2D Keystone Top Left/Top Right/Bottom Left/ Corner Fit Bottom Right Position...

  • Page 46: Main Menu

    Main menu Sub-menu Options Bright/Presentation/sRGB/Cinema/ Picture Mode 3D/User 1/User 2 Bright/Presentation/sRGB/Cinema/ Reference Mode Brightness Contrast Color Tint Sharpness Brilliant Color On/Off Color Picture Cool/Normal/Warm Temperature Color R Gain/G Gain/B Gain/ Temperature Fine R Offset/G Offset/B Offset Tuning Primary Color R/G/B/C/M/Y 3D Color Management Saturation...
  • Page 47 Quick Cooling On/Off Operation Setting Instant Restart On/Off Disable/5 mins/10 mins/ Blank Timer 15 mins/20 mins/25 mins/ 30 mins Disable/30 mins/1 hr/2 hrs/3hrs/ Sleep Timer 4hrs/8 hrs/12hrs Remote Receiver Front+Rear/Front/Rear Panel Key Lock On/Off Background Color BenQ/Black/Blue/Purple Splash Screen BenQ/Black/Blue Operation...

  • Page 48: System Setup

    Main menu Sub-menu Options High Altitude On/Off Mode Mute On/Off Volume Audio Settings Microphone Volume Power on/off Ring On/Off Lamp Mode Normal/Economic/SmartEco Lamp Settings Reset Lamp Timer Reset/Cancel Lamp Timer Change Passward Change Security Security Setting System Settings Setup: Power On Lock On/Off Advanced 2400/4800/9600/14400/19200/...

  • Page 49: Description Of Each Menu

    Description of each menu FUNCTION DESCRIPTION Corrects the projected picture’s color when the projection surface is Wall color not white. See "Using Wall Color" on page 35 for details. There are several options to set the image's aspect ratio depending Aspect Ratio on your input signal source.
  • Page 50 FUNCTION DESCRIPTION This projector features a 3D function which enables you to enjoy the 3D movies, videos, and sporting events in a more realistic way by presenting the depth of the images. You need to wear a pair of 3D glasses to view the 3D images.

  • Page 51: Color Space

    FUNCTION DESCRIPTION Pre-defined picture modes are provided so you can optimize your Picture Mode projector image set-up to suit your program type. See "Selecting a picture mode" on page 35 for details. Selects a picture mode that most suits your need for the image Reference quality and further fine-tune the image based on the selections listed on the same page below.

  • Page 52: Direct Power On

    FUNCTION DESCRIPTION Reminds the presenter to finish the presentation within a certain Presentation time frame. See "Setting the presentation timer" on page 39 for details. Timer Sets the language for the On-Screen Display (OSD) menus. Language "Using the menus" on page 28 for details.

  • Page 53: Microphone Volume

    FUNCTION DESCRIPTION Sets the preferred remote receiver (Front and Rear) allowing the Remote projector to accept signals from the remote control. Receiver Panel Key Disables or enables all panel key functions except POWER on the projector and keys on the remote control. See "Locking control Lock keys"...

  • Page 54: Monitor Out

    FUNCTION DESCRIPTION Selects a baud rate that is identical with your computer’s so that you can connect the projector using a suitable RS-232 cable and update Baud Rate or download the projector’s firmware. This function is intended for qualified service personnel. Selecting On enables the function and the projector displays the grid Test Pattern test pattern.

  • Page 55: Picture Mode

    FUNCTION DESCRIPTION Source Shows the current signal source. Picture Mode Shows the selected mode in the Picture menu. Lamp Mode Shows the current lamp mode. Resolution Shows the native resolution of the input signal. Current System Status 3D Format Shows the current 3D mode. Color System Shows input system format, NTSC, PAL, SECAM or RGB.

  • Page 56: Maintenance

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

  • Page 57: Lamp Information

    Lamp information Getting to know the lamp hour When the projector is in operation, the duration (in hours) of lamp usage is automatically calculated by the built-in timer. The method of calculating the equivalent lamp hour is as follows: Lamp Usage Time = (hours used in Normal mode) + (hours used in Economic mode) + (hours used in SmartEco mode) Equivalent lamp hour = 1.8*(hours used in Normal mode) + 1.3*(hours used in Economic mode) + 1.00*(hours used in SmartEco mode)
  • Page 58 Setting Auto Power Off This function allows the projector to turn off automatically if no input source is detected after a set period of time to prevent unnecessary waste of lamp life. To set Auto Power Off, go into the SYSTEM SETUP: Basic > Auto Power Off menu and press ◄/►.

  • Page 59: Timing Of Replacing The Lamp

    An old lamp may cause a malfunction in the projector and in some instances the lamp may explode. Go to http://www.benq.com for a replacement lamp. The Lamp indicator light and Temperature warning light will light up if the lamp becomes too hot.

  • Page 60: Replacing The Lamp

    • To assure optimal performance from the projector, it is recommended that you purchase a BenQ projector lamp for lamp replacement. • Ensure good ventilation when handling broken lamps. We recommend that you use respirators, safety glasses, goggles or face shield and wear protective clothing such as gloves.
  • Page 61 Loosen the two captive screws that secure the lamp. • Do not turn the power on with the lamp cover removed. • Do not insert your fingers between the lamp and the projector. The sharp edges inside the projector may cause injuries. Lift the handle so that it stands up.

  • Page 62: Resetting The Lamp Timer

    Connect the lamp connector properly and place as drawing before lamp compartment cover installation back. • Lamp connector must be installed flush with the connector base as shown in the image below. A gap between the lamp connector and the connector base will cause damage to the projector.
  • Page 63 Indicators Light Status & Description Power Temp Lamp Power events Orange Stand-by mode Green Powering up Flashing Green Normal operation Orange Projector is cooling. Flashing Lamp events Orange The lamp ignition is not lit up. Flashing The projector needs 90 seconds to cool down. Or Please contact your dealer for assistance.

  • Page 64: Troubleshooting

    Troubleshooting The projector does not turn on. Cause Remedy Plug the power cord into the AC inlet on the projector, and plug the power cord into the There is no power from the power cable. power outlet. If the power outlet has a switch, make sure that it is switched on.

  • Page 65: Specifications

    Specifications Projector specifications All specifications are subject to change without notice. Optical Control Resolution MH741 MINI-B 1920 x 1080 RS-232 serial control Display system 9 pin x 1 Single-chip DLP™ system IR receiver x 2 Lens F/Number F=2.59 to 2.91, f=16.87 to 21.87mm...

  • Page 66: Dimensions

    Dimensions 314.2 mm (W) x 116 mm (H) x 216.3 mm (D) 314.2 Unit: mm 314.2 216.3 116.0 51.2 65.2 Ceiling Mount Installation *Ceiling Mount Screws: M4 (Max. L=25, Min. L=20) 90.5 71.0 45.6 76.0 109.0 537.9 577.7 636.9 81.8 314.2 216.3 Specifications...

  • Page 67: Timing Chart

    (Reduce Blanking) 75.00 67.500 108.000 1152 x 864 1152 x 864_75 60.00 35.820 46.996 1024 x 576 BenQ NB Timing 64.995 41.467 51.419 1024 x 600 BenQ NB Timing 45.000 74.250 1280 x 720_60 1280 x 720 1280 x 768_60 1280 x 768 59.870...
  • Page 68 Refresh Clock 3D Field Resolution Mode rate frequency over- side- (MHz) Sequential (Hz) (kHz) under by-side 1280 x 960_60 60.000 60.000 1280 x 960 1280 x 960_85 85.002 85.938 148.500 1360 x 768 60.015 47.712 85.500 1360 x 768_60 1440 x 900 WXGA+_60 59.887 55.935...
  • Page 69 Support timing for Component - YPbPr input Horizontal Vertical Dot Clock 3D Field Timing Resolution frequency Frequency Frequency Sequential (KHz) (Hz) (MHz) 480i 720 x 480 15.73 59.94 13.5 480p 720 x 480 31.47 59.94 576i 720 x 576 15.63 13.5 576p 720 x 576...
  • Page 70 XGA_85 84.997 68.667 94.500 XGA_120 119.989 97.551 115.500 (Reduce Blanking) 75.00 67.500 108.000 1152 x 864 1152 x 864_75 BenQ 1024 x 576 60.00 35.820 46.996 Notebook Timing BenQ 64.995 41.467 51.419 1024 x 600 Notebook Timing 45.000 74.250 1280 x 720...
  • Page 71 Refresh Clock 3D Field Resolution Mode rate frequency over- side- (MHz) Sequential (Hz) (kHz) under by-side 1280 x 768 1280 x 768_60 59.870 47.776 79.5 WXGA_60 59.810 49.702 83.500 WXGA_75 74.934 62.795 106.500 1280 x 800 WXGA_85 84.880 71.554 122.500 WXGA_120 119.909 101.563...
  • Page 72 Supporting timing for HDMI Video input Horizontal Vertical Dot Clock 3D Field 3D frame Timing Resolution frequency frequency Frequency over- side- Sequential packing (KHz) (Hz) (MHz) under by-side 480i 720 (1440) x 480 15.73 59.94 480p 720 x 480 31.47 59.94 576i 720 (1440) x 576...

  • Page 73: Warranty And Copyright Information

    Proof of purchase date will be required with any warranty claim. In the event this product is found to be defective within the warranty period, BenQ's only obligation and your exclusive remedy shall be replacement of any defective parts (labor included). To obtain warranty service, immediately notify the dealer from which you purchased the product of any defects.

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