BenQ Pe8720 Users Manual

  31
  Additional information
EnglishTo clean the filter:
1.Shut down the projector if turned on and wait 
until the fans stop running. 2. Release the bottom edge of the filter cover (right 
side of projector) by gently pulling the tabs on the 
lower ends of the panel (as illustrated). 
3. Remove the filter cover by gently lifting the 
loosened cover vertically upwards and then away 
from the projector body. 4. Remove the dust filter grill by pulling the tab 
outwards and away from the projector. 
5. Use...

32 Additional information  
EnglishInstalling the cable connector-panel cover
The cable connector-panel cover is used to cover those unsightly cables and connections in the rear of the 
projector.
To install the cover:
1.Repeat Step 1~Step 3 in the To clean the filter: 
section. 
See page 31  for details. 2. Place a soft item on the desk for padding. Turn the 
projector over so that you can locate the screws 
that hold the back cover to the projector on the 
both sides. Loosen the screws.
3. Turn the...

  33
  Additional information
EnglishReplacing the lamp
The lamp may be very hot. Allow the projector to cool for at least 45 minutes before replacing the lamp.
This lamp contains mercury. Consult your local hazardous waste regulations to dispose of this lamp in a 
proper manner.
10.  Turn the power on and go into Setup > Lamp > Reset Lamp Timer menu to reset the lamp time.
Do not reset the lamp timer if the lamp has not been replaced as this could cause damage.
1. Turn the power off and disconnect the...

34 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. 
When the projector is in a normal state, ... 
When the projector is in an abnormal state, ... 
POWER TEMP LAMP STATE REMARK
Orange
Off OffStandby mode.
Flashing 
orangeThe projector is powering up. Cannot turn the projector off.
GreenThe projector is...

  35
  Additional information
EnglishTroubleshooting
Problem Cause Remedy
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 19)
The power switch is not in the on 
position.Put the power switch in the on position. (See 
page 19)
Attempting to turn the projector on 
again during the...

36 Additional information  
EnglishSpecifications
All specifications are subject to change without notice. 
Dimensions
492 x 195 x 444 mm (W x H x D) with the cable connector-panel cover attached
492 x 195 x 393 mm (W x H x D) without the cable connector-panel cover attached
Unit: mm
Optical
Projection systemSingle-chip DLPTM system.
DMD chip0.8 DLP (1280 x 720)
Lens1.35x zoom
Projection screen size23.5 ~ 300
Lamp250W
Electrical
Video SignalNTSC / NTSC4.43 / PAL-M / PAL-N / SECAM / DTV
Data SignalWXGA,...