BenQ Mh740 Digital Projector User Manual

							MH740
Digital Projector
User Manual 
						

							Table of contents 2
Ta b l e  o f  c o n t e n t s
Important safety 
instructions ................... 3
Introduction.................. 7
Projector features ..................................... 7
Shipping contents ...................................... 8
Projector exterior view........................... 9
Controls and functions ..........................11
Positioning your 
projector ..................... 16
Choosing a location ................................16
Obtaining a preferred projected 
image size ..................................................17
Connection ................. 19
Connecting video source devices........20
Playing sound through the 
projector ...................................................21
Operation ................... 22
Starting up the projector ......................22
Adjusting the projected image .............23
Using the menus ......................................25
Securing the projector ...........................26
Utilizing the password function ...........26
Switching input signal .............................29
Magnifying and searching for details ...30
Selecting the aspect ratio ......................30
Optimizing the image .............................32
Setting the presentation timer .............35
Remote paging operations ....................36
Freezing the image ..................................37
Hiding the image......................................37
Locking control keys ..............................37Operating in a high altitude 
environment............................................. 38
Adjusting the sound ............................... 38
Using the test pattern............................ 39
Using the teaching templates ............... 40
Using the quick install ............................ 40
Shutting down the projector ............... 41
Menu operation ...................................... 42
Maintenance ............... 53
Care of the projector ............................ 53
Lamp information ................................... 54
Troubleshooting......... 60
Specifications .............. 61
Projector specifications ......................... 61
Dimensions .............................................. 62
Timing chart ............................................. 63
Warranty and 
Copyright 
information ................. 68 
						

							Important safety instructions 3
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
1.Please read this manual before 
you operate your projector. Save 
it for future reference. 
2.Do not look straight at the 
projector lens during operation. 
The intense light beam may damage 
your eyes. 
3.Refer servicing to qualified 
service personnel. 
4.Always open the lens shutter or 
remove the lens cap when the 
projector lamp is on. 5. In some countries, the line voltage is 
NOT stable. This projector is 
designed to operate safely within a 
mains voltage between 100 to 240 
volts AC, but could fail if power cuts 
or surges of 10 volts occur. In 
areas where the mains voltage 
may fluctuate or cut out, it is 
recommended that you connect 
your projector through a power 
stabilizer, surge protector or 
uninterruptible power supply 
(UPS). 
6. Do not block the projection lens with 
any objects when the projector is 
under operation as this could cause 
the objects to become heated and 
deformed or even cause a fire. To 
temporarily turn off the lamp, press 
ECO BLANK on the projector or 
remote control. 
						

							Important safety instructions 4
Safety Instructions (Continued)
7. The lamp becomes extremely hot 
during operation. Allow the 
projector to cool for approximately 
45 minutes prior to removing the 
lamp assembly for replacement. 
8. Do not operate lamps beyond the 
rated lamp life. Excessive operation 
of lamps beyond the rated life could 
cause them to break on rare 
occasions. 
9. Never replace the lamp assembly or 
any electronic components unless 
the projector is unplugged. 10. Do not place this product on an 
unstable cart, stand, or table. The 
product may fall, sustaining serious 
damage. 
11. Do not attempt to disassemble this 
projector. There are dangerous high 
voltages inside which may cause 
death if you should come into 
contact with live parts. The only 
user serviceable part is the lamp 
which has its own removable cover.
Under no circumstances should you 
ever undo or remove any other 
covers. Refer servicing only to 
suitably qualified professional 
service personnel.
12. When the projector is under 
operation, you may sense some 
heated air and odor from its 
ventilation grill. It is a normal 
phenomenon and not a product 
defect. 
						

							Important safety instructions 5
Safety Instructions (Continued)
13. Do not place this projector in any of 
the following environments.
- Space that is poorly ventilated or 
confined. Allow at least 50 cm clearance 
from walls and free flow of air around 
the projector. 
- Locations where temperatures may 
become excessively high, such as the 
inside of a car with all windows rolled up.
- Locations where excessive humidity, 
dust, or cigarette smoke may 
contaminate optical components, 
shortening the projectors life span and 
darkening the image.
- Locations near fire alarms
- Locations with an ambient temperature 
above 40°C / 104°F
- Locations where the altitudes are higher 
than 3000 m (10000 feet).
14. Do not block the ventilation holes.
- Do not place this projector on a blanket, 
bedding or any other soft surface.
- Do not cover this projector with a cloth 
or any other item.
- Do not place inflammables near the 
projector.
If the ventilation holes are seriously 
obstructed, overheating inside the 
projector may result in a fire.
15. Always place the projector on a level, 
horizontal surface during operation.
- Do not use if tilted at an angle of more 
than 10 degrees left to right, nor at angle 
of more than 15 degrees front to back. 
Using the projector when it is not fully 
horizontal may cause a malfunction of, or 
damage to, the lamp. 
16. Do not stand the projector on end 
vertically. Doing so may cause the 
projector to fall over, causing injury or 
resulting in damage to the projector.
3000 m
(10000 feet)
0 m
(0 feet) 
						

							Important safety instructions 6
Safety Instructions (Continued)
17. Do not step on the projector or place 
any objects upon it. Besides probable 
physical damage to the projector, 
doing so may result in accidents and 
possible injury.
18. Do not place liquids near or on the 
projector. Liquids spilled into the 
projector may cause it to fail. If the 
projector does become wet, 
disconnect it from the power supplys 
wall socket and call BenQ to have the 
projector serviced.
19. This product is capable of displaying 
inverted images for ceiling mount 
installation. 
Use only BenQs Ceiling Mount Kit for 
mounting the projector and ensure it is 
securely installed. 
Ceiling mounting the 
projector
We want you to have a pleasant 
experience using your BenQ 
projector, so we need to bring this 
safety matter to your attention to 
prevent possible damage to person 
and property.
If you intend to mount your projector 
on the ceiling, we strongly recommend 
that you use a proper fitting BenQ 
projector ceiling mount kit and that 
you ensure it is securely and safely 
installed.
If you use a non-BenQ brand 
projector ceiling mount kit, there is a 
safety risk that the projector may fall 
from the ceiling due to an improper 
attachment through the use of the 
wrong gauge or length screws.
You can purchase a BenQ projector 
ceiling mount kit from the place you 
purchased your BenQ projector. 
BenQ recommends that you also 
purchase a separate Kensington lock 
compatible security cable and attach it 
securely to both the Kensington lock 
slot on the projector and the base of 
the ceiling mount bracket. This will 
perform the secondary role of 
restraining the projector should its 
attachment to the mounting bracket 
become loose.
Hg - Lamp contains mercury. Manage 
in accordance with local disposal 
laws. See www.lamprecycle.org. 
						

							Introduction7
Introduction
Projector features
The projector offers the following features
•SmartEco™ starts your dynamic power saving
The SmartEco™ technology offers a new way of operating the projector lamp system 
and saves lamp power up to 70% depending on the content brightness level.
•Longer lamp life with SmartEco™ technology
The SmartEco™ technology lowers the power consumption and increases the lamp life 
when SmartEco mode is selected.
•ECO BLANK saves 70% of lamp power
By pressing the ECO BLANK button to hide the image and immediately lower 70% of 
the lamp power at the same time.
•Less than 0.5W in standby condition
Less than 0.5W power consumption under standby mode.
•Filter Free
Filter free design to lower maintenance and operating costs.
•Network Control
Integrated RJ45 connector for wired network control allowing management of 
projector status from a computer using a web browser.
•Crestron RoomView
®, PJ Link and AMX supported
The projector supports Crestron eControl and RoomView, PJ Link and AMX allowing 
you to control and manage equipment from a remote computer via LAN connection.
•One-key auto-adjustment
Pressing AUTO on the keypad or remote control to show the best picture quality 
immediately.
•Built-in 5W speaker(s)
Built-in 5W speaker(s) providing mixed mono audio when an audio input is connected.
•Quick Cooling, Auto Power Off, Signal Power On, Direct Power On
Quick Cooling function speeds up the cooling process when turning off the 
projector. Auto Power Off function allows the projector to turn off automatically if 
no input signal is detected after a set period of time. Signal Power On function turns 
on your projector automatically once detecting the signal input and Direct Power On 
boots up the projector automatically when the power is connected.
•Instant Restart
Selectable Instant Restart function enables you to restart the projector immediately 
within 90 seconds after turning it off.
•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.
• The apparent brightness of the projected image will vary depending on the ambient lighting conditions, 
selected input signal contrast/brightness settings, and is directly proportional to projection distance.
• The lamp brightness will decline over time and may vary within the lamp manufacturers specifications. This 
is normal and expected behavior. 
						

							Introduction 8
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.
Optional accessories
*The warranty card is only supplied in some specific regions. Please consult your dealer for 
detailed information.
Projector Remote control with battery
      Power cord               VGA cable
Quick start guide User manual CD
Warranty card*
1. Spare lamp kit
2. Ceiling mount kit3. Soft Carry Case
4. RS232 Cable
 
Digital Projector
Quick Start Guide 
						

							Introduction9
Projector exterior view
1. Lamp compartment cover
2. Quick-release button
3. Projection lens
4. Focus ring and Zoom ring
5. External control panel 
(See Projector on page 11 for 
details.)
6. Vent (cool air intake)
7. Front IR remote sensor
8. Lens cap & string
9. USB Type B port
10. RGB signal output jack
11. COMPUTER-1 input jack
12. COMPUTRR-2 input jack
13. HDMI 1 input jack
14. HDMI 2 input jack
15. 12V TRIGGER input jack
16. Kensington anti-theft lock slot
17. Rear adjuster foot
18. Audio speaker
19. Rear IR remote sensor
20. VIDEO input jack
21. S-VIDEO input jack
22. Audio (L/R) input jack
23. RS-232 control port
24. Audio input/output jack
25. Quick-release foot
26. RJ45 LAN input jack
27. AC power cord inlet
3
8
6
2
Front/upper side
5
7
41
Rear/lower side
121415
1620212223242627
1391011
19172518 
						

							Introduction 10
28. Celling mount holes
29. Rear adjuster foot
Bottom side
28
29
28
28