BenQ Projector SW921 User Manual

  61
  Additional information
English
Additional 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...

62 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.
To obtain the lamp hour information:
1. Press  MENU/EXIT  and then press  /  until the  System Setup: Advanced menu is highlighted.
2. Press   to highlight  Lamp Settings and press MODE/ENTER . The Lamp Settings  page is 
displayed.
3. Press  to highlight  Lamp Timer and press MODE/ENTER . The Lamp...

  63
  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://www.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...

64 Additional information  
EnglishReplacing 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...

  65
  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 50  for details.
2. Loosen the screw on the lamp cover.
3. Remove the lamp cover.  4. Loosen the screw that hold the lamp to the 
projector. Disconnect the lamp connector 
from the projector.
5. Lift the handle so that  it is perpendicular to 
the lamp. Use the handle to slowly pull the...

66 Additional information  
English
Resetting the lamp timer
Do not reset the lamp timer if the lamp has no
t been replaced as this could cause damage.
1. After the start-up logo, press MENU/EXIT and then press  /  until the  System Setup: 
Advanced  menu is highlighted.
2. Press   to highlight  Lamp Settings and press MODE/ENTER . The Lamp Settings  page is 
displayed.
3. Highlight  Reset Lamp Timer and press  MODE/ENTER. A warning message is displayed asking if 
you want to reset the lamp timer....

  67
  Additional information
EnglishIndicators
LightStatus 
POWERTEMPLAMP
Pow e r  ev e n t s
Orange Off OffStand-by mode.
Green
Flashing Off OffPowering up.
Green
OffOffNormal operation.
Orange
Flashing Off OffNormal power-down cooling.
Red
Flashing Red
Flashing Red
FlashingDownload
Red
Flashing Off OffScaler shutdown fail (data abort)
Red
OffRedScaler reset fail (video projector only)
Off Red OffLAN download fail
OffGreen OffLAN download OK
Green Off OrangeLamp Life exhausted
Burn-in events
Green...

68 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 23.)
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...

  69
  Additional information
EnglishSpecifications
All specifications are subject  to change without notice. 
 Optical
Projection systemSingle-chip DLP™ system
Native resolutionSX920: 0.55 DLP (1024 x 768); 
SW921: 0.65 DLP (1280 x 800);
SU922: 0.67 DLP (1920 x 1200)
LensF = 2.45 to 3.07, f = 15.78 to 25.12 mm
Projection screen size60 to 240
Lamp370W
 Electrical
CompatibilityPC
SX920/SW921: 640 x 480 to 1600 x 1200
SU922: 640 x 480 to 1920  x 1200 
Video
NTSC, PAL, SECAM, YPbPr...

70 Additional information  
English Dimensions
411.4 mm 
x 267.5 mm  x 118.4 mm (W x D  x H)
 Ceiling mount installation
267.5 411.4
118.4
Unit: mm
205.94
411.88
135
267.5
75.53
549.7 582.7
407.7
289.7
291.2065.94
35.74
31
164.1172.26
3.5Ceiling mount screws: M5 (Max. L = 25 mm; 
 Min. L = 20 mm)
Unit: mm