BenQ Projector SH940 User Manual

							  51
  Additional information
EnglishAdditional information
Care of the projector
Your projector needs little maintenance. The only thing you have to do on a regular basis is keep the lens 
clean. Never remove any parts of the projector except the lamp. Contact your dealer or local customer 
service center if the projector fails to operate as expected.
Cleaning the lens
Clean the lens whenever you notice dirt or dust on the surface. Before you attempt to clean the lens, 
turn the projector off, unplug the power cable, and leave it several minutes to cool completely.
1. Use a canister of compressed air to remove dust. (Available from building hardware or photographic 
suppliers.)
2. If there is stubborn dirt or smudge marks, use a proper photographic lens brush or moisten a clean 
soft lens cloth with lens cleaner to gently wipe the lens surface.
3. Never use any type of abrasive pad, alkaline/acid cleaner, scouring powder, or volatile solvent, such as 
alcohol, benzene, thinner or insecticide. Using such materials or maintaining prolonged contact with 
rubber or vinyl materials may result in damage to the projector surface and cabinet material.
•  Never touch the lens with your finger or rub the lens with abrasive materials. Even paper towels can 
damage the lens coating. Only ever use a proper photographic lens brush, cloth, and cleaning solution. 
Do not attempt to clean the lens while the projector is switched on or is still hot from previous use.
•  Be sure to turn off the projector and let it cool down completely before cleaning the lens.
Cleaning the projector case
Before you attempt to clean the case, turn the projector off, unplug the power cable, and leave it several 
minutes to cool completely.
1. To remove dirt or dust, wipe the case with a soft, dry, lint-free cloth.
2. To remove stubborn dirt or stains, moisten a soft cloth with water and a neutral detergent. Then 
wipe the case.
Never use wax, alcohol, benzene, thinner or other chemical detergents. These can damage the case.
Storing the projector
If you need to store the projector for an extended time, please:
1. Make sure the temperature and humidity of the storage area are within the recommended range for 
the projector. Please refer to the Spec. page in this manual or consult your dealer about the range.
2. Retract the adjuster feet.
3. Remove the batteries from the remote control.
4. Pack the projector in its original packing or equivalent.
Transporting the projector
It is recommended that you ship the projector with its original packing or equivalent.
SH940_EN.book  Page 51  Wednesday, October 3, 2012  2:36 PM 
						

							52 Additional information  
EnglishLamp 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:
Equivalent lamp hour 
= 1 (hours used in Economic mode) + 3/2 (hours used in Normal mode)
See Setting Lamp Power as Economic below for more information on Economic mode.
To obtain the lamp hour information:
1. Press MENU on the projector or MENU/EXIT on the remote control, and then press  /  until 
the Advanced Setup menu is highlighted.
2. Press   to highlight Lamp Settings and press ENTER. The Lamp Settings page is displayed.
3. The lamp hour information is shown in the row of Equivalent Lamp Hour.
4. To leave the menu, press MENU on the projector or MENU/EXIT on the remote control.
Extending lamp life
The projection lamp is a consumable item. To keep the lamp life as long as possible, you can do the 
following settings via the OSD menu.
•  Setting Lamp Power as Economic
Using Economic mode reduces system noise and power consumption. If the Economic mode is 
selected, the light output will be reduced and result in darker projected pictures.
Setting the projector in Economic mode also extends the lamp life. To set Economic mode, go to the 
Advanced Setup > Lamp Settings > Lamp Power menu and press  / .
•  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  s e t  Auto Power Off, go to the System Setup > Operation Settings > Auto Power Off menu 
and press  /  to select a time period. The time period can be set from 5 to 30 minutes in 5-minute 
increments. If the preset time lengths are not suitable for your presentation, select Disable. The 
projector will not automatically shut down in a certain time period.
SH940_EN.book  Page 52  Wednesday, October 3, 2012  2:36 PM 
						

							  53
  Additional information
EnglishTiming of replacing the lamp
When the Lamp indicator lights up red or a message appears suggesting it is time to replace the lamp, 
please install a new lamp or consult your dealer. An old lamp may cause a malfunction in the projector 
and in some instances the lamp may explode. Go to http://lamp.BenQ.com for a replacement lamp.
The Lamp indicator light and Temperature warning light will light up if the lamp becomes too hot. Turn 
the power off and let the projector cool for 45 minutes. If the Lamp or Temp indicator still lights up after 
turning the power back on, please contact your dealer. See Indicators on page 56 for details.
The following Lamp warning displays will remind you to change the lamp.
XXXX shown in the above messages are numbers that vary depending on different models.
Replacing the lamp
•  To reduce the risk of electrical shock, always turn the projector off and disconnect the power cable 
before changing the lamp.
•  To reduce the risk of severe burns, allow the projector to cool for at least 45 minutes before replacing the 
lamp.
•  To reduce the risk of injuries to fingers and damage to internal components, use caution when removing 
lamp glass that has shattered into sharp pieces.
•  To reduce the risk of injuries to fingers and/or compromising image quality by touching the lens, do not 
touch the empty lamp compartment when the lamp is removed.
•  This lamp contains mercury. Consult your local hazardous waste regulations to dispose of this lamp in a 
proper manner.
StatusMessage
Install a new lamp for optimal performance. If the projector is 
normally run with Economic selected (See Getting to know the 
lamp hour on page 52), you may continue to operate the projector 
until the next hour lamp warning appears.
Press ENTER to dismiss the message.
It is strongly recommended that you replace the lamp at this age. 
The lamp is a consumable item. The lamp brightness diminishes with 
use. This is normal lamp behavior. You can replace the lamp 
whenever you notice that the brightness level has significantly 
diminished.
Press ENTER to dismiss the message.
The lamp MUST be replaced before the projector will operate 
normally.
Press ENTER to dismiss the message.
OK
NOTICE: Order replacement lampLamp > XXXX hrs
Order a new lamp at 
lamp.benq.com
WARNING
OK
NOTICE: Replace lamp soonLamp > XXXX hrs
Order a new lamp at 
lamp.benq.com
WARNING
NOTICE: Replace lamp now
Lamp > XXXX hrs
Lamp-usage time exceeded
Replace lamp (refer to User’s Manual)
then reset lamp timer.
Order a new lamp at 
lamp.benq.com
OK
WARNING
SH940_EN.book  Page 53  Wednesday, October 3, 2012  2:36 PM 
						

							54 Additional information  
English1. Turn the power off and disconnect the 
projector from the power outlet. Turn off all 
connected equipment and disconnect all other 
cables. See Turning the projector off on 
page 41 for details.
2. Slightly lift the projector up. Loosen the 
screws on the lamp cover.
3. Remove the lamp cover. 
4. Loosen the screws that hold the lamp to the 
projector. If the screws are not loosened 
completely, they could injure your fingers.
5. Lift the handle so that it is perpendicular to 
the lamp. Use the handle to slowly pull the 
lamp out of the projector. Notes
•  Pulling it too quickly may cause the lamp to 
break and scatter broken glass in the projector. 
To reduce the risk of injuries to fingers and 
damage to internal components, use caution 
when removing lamp glass that has shattered.
•  Do not place the lamp in locations where water 
might splash on it, children can reach it, near or 
above heat sources, or near flammable 
materials.
•  Do not insert your hand into the projector when 
the lamp is removed. If you touch the optical 
components inside, it could cause blurred 
images.
6. Insert the replacement lamp. Make sure it is 
pushed fully and firmly in place.
7. Tighten the screws securing the lamp box.
8. Ensure the handle is fully locked in place.
 Notes
•  Please be careful to not over-tighten the screws.
•  Loose screws may cause a bad connection, which 
could result in malfunction.
9. Re-install the lamp cover.
10. Tighten the screws on the lamp cover.
11.  Reapply power and turn the projector back 
on.
SH940_EN.book  Page 54  Wednesday, October 3, 2012  2:36 PM 
						

							  55
  Additional information
EnglishResetting the lamp timer
Do not reset the lamp timer if the lamp has not been replaced as this could cause damage.
1. After the start-up logo, press MENU on the projector or MENU/EXIT on the remote control, and 
then press  /  until the Advanced Setup menu is highlighted.
2. Press   to highlight Lamp Settings and press ENTER. The Lamp Settings page is displayed.
3. Highlight Reset Lamp Timer and press ENTER. A warning message is displayed asking if you want 
to reset the lamp timer. Highlight Reset and press ENTER. The lamp time will be reset to 0.
SH940_EN.book  Page 55  Wednesday, October 3, 2012  2:36 PM 
						

							56 Additional information  
EnglishIndicators
There are three indicators which show the status of the projector. Check the following for information 
about the indicator lights. If there is anything wrong, turn the projector off and contact your dealer.
LightStatus & Description
POWERTEMPLAMP
Pow e r  eve n t s
Orange Off OffStand-by mode.
Green
FlashingOff OffPowering up.
Green Off OffNormal operation.
Orange
FlashingOff OffNormal power-down cooling
Lamp events
Off Off RedLamp error in normal operation
Orange Off RedLamp is not lit up
Thermal events
Off Red OffFan 1 error (the actual fan speed is +25% outside the desired speed)
Off Red RedFan 2 error (the actual fan speed is +25% outside the desired speed)
Off Red GreenFan 3 error (the actual fan speed is +25% outside the desired speed)
Off Red OrangeFan 4 error (the actual fan speed is +25% outside the desired speed)
Orange Red RedTemperature 1 error (over limited temperature)
Orange Red GreenTemperature 1 error (over limited temperature)
Off Orange RedFans do not rotate in the process of powering up
SH940_EN.book  Page 56  Wednesday, October 3, 2012  2:36 PM 
						

							  57
  Additional information
EnglishTroubleshooting
ProblemCauseRemedy
The projector does 
not turn on.There is no power from the power 
cable.Plug the power cable into the AC inlet on the 
rear of the projector, and plug the power 
cable into to the power outlet. If the power 
outlet has a switch, make sure that it is 
switched on. (See page 20.)
Attempting to turn the projector on 
again during the cooling process.Wait until the cooling down process has 
completed.
The lamp cover is not securely 
attached.Correctly attach the lamp cover. (See page 
53.)
No picture.The video source is not turned on or 
connected correctly.Turn the video source on and check that the 
signal cable is connected correctly. (See page 
17.)
The projector is not correctly 
connected to the input source device.Check the connection. (See page 17.)
The input source has not been 
correctly selected.Select the correct input source with the 
Source keys on the remote control or 
SOURCE on the projector. (See page 21.)
Image is unstable.The connection cables are not 
securely connected to the projector 
or the signal source.Correctly connect the cables to the 
appropriate terminals. (See page 17.)
Picture is blurred.The projection lens is not correctly 
focused.Adjust the focus of the lens using the focus 
ring. (See page 25.)
The projector and the screen are not 
aligned properly.Adjust the projection angle and direction as 
well as the height of this projector if 
necessary. (See page 25.)
Remote control does 
not work correctly.The batteries are out of power.Replace both of the batteries with new ones. 
(See page 7.)
There is an obstacle between the 
remote control and the projector.Remove the obstacle. (See page 7.)
You are too far away from the 
projector.Stand within 8 meters (26.2 feet) of the 
projector. (See page 7.)
SH940_EN.book  Page 57  Wednesday, October 3, 2012  2:36 PM 
						

							58 Additional information  
EnglishSpecifications
All specifications are subject to change without notice. 
 Optical
Projection systemSingle-chip DLP™ system.
DMD chip0.65 DLP (1920 x 1080)
LensF = 2.48 to 2.81, f = 24.1 to 36.15 mm
Projection screen size30 to 300
Lamp300W
 Electrical
CompatibilityPC: 640 x 400 to 1920 x 1200
Video: NTSC, PAL, SECAM, YPbPr (480i/480p/576i/576p), HDTV 
(720p/1080i/1080p)
DDC 2B
Color SpaceTyp. = 60% NTSC (Target Color Gamut = HDTV Rec. 709)
 Te r m i n a l s
InputAnalog RGB: D-Sub 15-pin (female) x 1
HDMI (V. 1.3) x 2
Component Video in 5BNC x 1
Component Video (Y/C
B/CR, Y/PB/PR) x 1 (shared with RGB input)
Composite Video x 1
PC Audio x 1
Output12VDC (Max. 0.5 A)
Analog RGB: D-Sub 15-pin (female) x 1
PC Audio x 1
Speaker: 10W x 1
ControlSerial Connector: RS232 9 pin (male)
Mini B type USB x 1
IR receiver x 2
LAN x 1
 General characteristics
Projector weight< 7.2 kg (15.9 lbs)
Pow e rVAC 100-240V, 5A, 50-60Hz (Automatic)
Power consumptionMax. 470W; Standby < 0.5 W
Operating temperature0 °C to 40 °C at sea level
Operating humidity10% - 90% (without condensation)
Operating altitude0-1499 m at 0°C-35°C
1500-3000 m at 0°C-30°C (with High Altitude Mode on)
Storage temperature-20°C- 60°C/-4°F to 140°F
Storage humidity10% - 90%
SH940_EN.book  Page 58  Wednesday, October 3, 2012  2:36 PM 
						

							  59
  Additional information
English Dimensions
428 mm x 318 mm x 145 mm (W x D x H)
 Ceiling mount installation
428
318145
Unit: mm
83.2
104 175240
214.01
537.90 668.70
577.70
178.17
127.70
92.2
222.2282.2
Ceiling mount screws:
M6 (Max. L = 25 mm; 
Min. L= 20 mm)
Unit: mm
SH940_EN.book  Page 59  Wednesday, October 3, 2012  2:36 PM 
						

							60 Additional information  
English Timing chart
Supported timing for PC input
* Only for the PC (analog RGB) inputs
FormatResolutionRefresh rate 
(Hz)H. Frequency 
(KHz)Pixel Frequency 
(MHz)
640 x 480 640 x 48059.94 31.469 25.175
72.809 37.861 31.5
75 37.5 31.5
85.008 43.269 36
720 x 400 720 x 400 70.087 31.469 28.3221
800 x 600 800 x 60060.317 37.879 40
72.188 48.077 50
75 46.875 49.5
85.061 53.674 56.25
1024 x 768 1024 x 76860.004 48.363 65
70.069 56.476 75
75.029 60.023 78.75
84.997 68.667 94.5
*1024 x 576 1024 x 576 60 35.82 46.996
*1024 x 600 1024 x 600 64.995 41.467 51.419
1152 x 864 1152 x 864 75 67.5 108
1280 x 720 1280 x 720 60 45.000 74.250
1280 x 768 1280 x 76860 47.396 68.25
59.87 47.776 79.5
1280 x 800 1280 x 80059.81 49.702 83.5
74.934 62.795 106.5
84.88 71.554 122.5
1280 x 1024 1280 x 102460.02 63.981 108
75.025 79.976 135
85.024 91.146 157.5
1280 x 960 1280 x 96060 60 108
85.002 85.938 148.5
1360 x 768 1360 x 768 60.015 47.712 85.5
1440 x 900 1440 x 90060 55.469 88.75
59.887 55.935 106.5
1400 x 1050 1400 x 1050 59.978 65.317 121.75
1600 x 1200 1600 x 1200 60 75 162
1680 x 1050 1680 x 1050 59.954 65.29 146.25
640 x 480@67Hz
(MAC13)640 x 480@67Hz 66.667 35 30.24
832 x 624@75Hz
(MAC16)832 x 624@75Hz 74.546 49.722 57.28
1024 x 768@75Hz
(MAC19)1024 x 768@75Hz 75.020 60.241 80
1152 x 870@75Hz
(MAC21)1152 x 870@75Hz 75.06 68.68 100
SH940_EN.book  Page 60  Wednesday, October 3, 2012  2:36 PM