BenQ Projector LU9715 User Manual

21
Removing the existing lens from the projector
1. Push the Lens Release button all the way in and rotate the lens counterclockwise, and the 
existing lens will be disengaged.
2.  Pull out the existing lens slowly.
Note:
•  Do not shake or place excessive pressure on the projector or the lens components as the projector and lens 
components contain precision parts.
•  Before removing or installing the lens, be sure to turn off the projector, wait until the cooling fans stop, and turn 
off the main power...

22
Choosing a location
Your projector is designed to be installed in one of four possible installation locations. Your 
room layout or personal preference will dictate which installation location you select. Take into 
consideration the size and position of your screen, the location of a suitable power outlet, as well 
as the location and distance between the projector and the rest of your equipment.
1. Front Table:
Select this location with the projector 
placed near the floor in front of the 
screen....

23
Projection distance and screen size
Example of LU9715 using Standard lens:
The further your projector is from the screen or wall, the larger the image. The minimum size the 
image  can  be  is  approximately  40  inches  (1  m)  measured  diagonally  when  the  projector  is  roughly 
75.8  inches  (1.93  m)  from  the  wall  or  screen. The  largest  the  image  can  be  is  500  inches  (12.7  m) 
when the projector is about 978.3 inches (24.85 m) from the wall or screen.
Distance (A)Height (B)Lens...

24
 120 
 873  285 
 216 
Screen size
5J.JCY37.001
Ultra Short Reflection
Diagonal WidthHeight H1H2 L1L2L3
inch mminch mminch mminch mminch mminch mminch mminch mm
100 2540 852166 531355 19485 28701 33849 22564 -1-24
120 3048 1022599 641627 23596 32812 391000 28715 5127
150 3810 1283247 802032 30763 39979 481227 37942 14354
200 5080 1704330 1072711 411041 491257 631606 521321 29733
250 6350 2135415 1333391 521320 601536 781984 671699 441111
300 7620 2566500 1604071 631598 711814 932362 822077 591489
350...

25
Lens shift adjustable range
The adjustable range for lens shift is tabulated below and subject to the conditions listed.
Note:
The drawings below apply to the standard lens only.
 
Desk-Front Projection
Vertical ShiftNormal projection position
Max 
0.5V
1V
1V 0.1H
Shift to Left
Shift to Right
0.1H
Max 
0.5V
Height of projected image
Height of projected image
Width of projected image
1H
Vertical Shift
Ceiling Mount-Front Projection
English  

26
Making connections
Preparations
When connecting a signal source to the projector, be sure to:
1. Turn off all equipment before making any connections.
2.  Only use the correct type cables for each source with proper type plugs.
3.  Ensure that all cable plugs are firmly fitted to the equipment jacks.
Note that all cables shown in the following connection diagrams may not be supplied with the projector (See "Shipping 
contents" on page 13 ). Most cables are commercially available from...

27
Connect to video equipment
You may connect any video equipment to your projector’s input port with a DVI-D, HDMI, 
DisplayPort or YPBPR cable.
Camera
Connect to control port
Your projector features the following control ports:
• HDBaseT/LAN
Your projector supports network control with shared LAN (network control) and HDBaseT.
•  RS-232 (RS-232c control)
Your projector supports RS-232c serial control, you may connect the projector to a PC with 
standard 9-pin serial cable (straight through wire) for...

28
Caution:
• The projector enters wired control mode automatically and cannot be controlled by a remote controller’s IR 
signal once the terminal of a remote controller is inserted in the projector’s wire port. To control your projector 
with the IR signal of a remote controller again, remove the wire control terminal from the projector.
•  Make sure the port is valid before inserting a wired remote controller. The remote controller may be damaged if 
a port is invalid, e.g. a wired remote controller is...

29
Connect to external digital transmitter
The projector features a built-in HDBaseT for you to work with optional digital transmitter 
to send video, RS-232, LAN signal to projector with single RJ-45 cable. If the optional digital 
transmitter supports IR remote controller I/O, you may also send IR remote controller signal to 
LU9715 projector using the same RJ-45 cable.
VGA INRJ45Lan HDMIRS232RJ45
HDBaseT
YPbPr
VGA Cable DVD Player
DVD Player
Hub
Control PC
Control PC RS-232c
RJ-45 Cat5e or above...

30
Using the projector
Preparations
1. Plug in and turn all of the connected equipment on.
2.  Insert the projection lens.
3.  Plug the power cable into a wall power outlet, check the voltage switch placed at right voltage in 
the region being used, and turn on AC switch.
Note:
Please  use  the  original  accessories  (e.g.  power  cable)  only  with  the  device  to  avoid  possible  dangers  such  as  electric 
shock and fire.
Please make sure the Voltage Switch is selected at the right voltage in the...