BenQ Projector MH741 User Manual

							MH741
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 ..................... 18
Choosing a location ................................18
Obtaining a preferred projected 
image size ..................................................19
Connection ................. 21
Connecting video source devices........22
Playing sound through the 
projector ...................................................23
Operation ................... 24
Starting up the projector ......................24
Adjusting the projected image .............25
Using the menus ......................................28
Securing the projector ...........................29
Utilizing the password function ...........29
Switching input signal .............................32
Magnifying and searching for details ...33
Selecting the aspect ratio ......................33
Optimizing the image .............................35
Setting the presentation timer .............39
Remote paging operations ....................40
Freezing the image ..................................40
Hiding the image......................................40
Locking control keys ..............................41Operating in a high altitude 
environment............................................. 41
Adjusting the sound ............................... 41
Using the test pattern............................ 42
Using the teaching templates ............... 43
Using the quick install ............................ 43
Shutting down the projector ............... 44
Menu operation ...................................... 45
Maintenance ............... 56
Care of the projector ............................ 56
Lamp information ................................... 57
Troubleshooting......... 64
Specifications .............. 65
Projector specifications ......................... 65
Dimensions .............................................. 66
Timing chart ............................................. 67
Warranty and 
Copyright 
information ................. 73 
						

							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).  
						

							Important safety instructions 4
Safety Instructions
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.
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. 
						

							Important safety instructions 5
Safety Instructions (Continued)
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.
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. 
3000 m
(10000 feet)
0 m
(0 feet) 
						

							Important safety instructions 6
Safety Instructions (Continued)
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.
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.
•HDMI/MHL compatible
You can project the content from your smart devices via HDMI-1/MHL connection.
•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.
•USB MINI-B jack to use the page up/down commands (like Microsoft PowerPoint) 
using the remote control when connected a PC.
•USB TYPE A jack to support 5V/1.5A output.
•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.
•One-key auto-adjustment
Pressing AUTO on the keypad or remote control to show the best picture quality 
immediately.
•Built-in 10W speaker(s)
Built-in 10W 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 
Pow e r  O f f 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.
• Auto keystone function to correct image keystoning automatically.
• 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 Soft carry case
Quick start guide User manual CD Warranty card*
1. Spare lamp kit
2. Ceiling mount kit3. Soft carry case
4. 3D glasses
 
Digital Projector
Quick Start Guide 
						

							Introduction9
Projector exterior view
1. Lamp compartment cover
2. External control panel 
(See Projector on page 11 for 
details.)
3. Focus ring and Zoom ring
4. Vent (cool air intake)
5. Lens cap & string
6. Projection lens
7. Front IR remote sensor
8. HDMI-1 input jack
9. VIDEO input jack
10. HDMI-2/MHL input jack
11. Audio (L/R) input jack
12. Audio input/output jack
13. MONITOR-OUT output jack
14. RS232 control port
15. PC input jack
16. Kensington anti-theft lock slot
17. Rear adjuster foot
18. Rear IR remote sensor
19. USB Mini-B port
20. Front adjuster foot
21. Microphone jack
22. S-VIDEO input jack
23. USB Type-A port
24. AC power cord inlet
6
5
4
Front/upper side2
7
31
Rear/lower side
13108
1619222024181723
9
21
14111512 
						

							Introduction 10
25. Front adjuster foot
26. Ceiling mount holes
27. Rear adjuster foot
Bottom side
26
27
26
26
25