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...

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...

  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...

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...

  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...

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...

  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...

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...

  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...