Grandview LF-MIRCII(Recessed-Ceiling Series) - Manual (Page 4)

3
1.Choose a position according to the required space, and then take apart the ceiling (figure 1). Please measure the
distance H between concrete roof and ceiling surface correctly (figure 2).
一. Grille-Ceiling Mount
Take apart the ceiling
Fi gur e 2
Concrete Roof Roof Surface
Ceiling Surface Grille-ceiling
Fi gur e 1
H
2.This screen equips bracket, and build up the hanging bracket using the hook, M12 nut and M12 bar. Cut the length
of M12 bar to H minus 100mm(H is the distance between concrete roof and ceiling surface) (Note: H is 500mm, the
length of hanging bracket is 400m which is 500mm minus 100mm) (figure 3).
figur e 3
Ceiling
Concrete Roof
Low Bar
L minus 26mm
（
） The width of groove
L（ ） The length of screen
M12 Bar
Screen
Screen Fabric
Hook 1
0
0
Hanging Board
This number of bars can
be four and two according
to different installation.
158（ ） The width of groove
170（ ） The length of screen
12
Caution
1.The shortest distance between receiver and emitter is 50cm。
2.Controller will work within 30 degree away horizontally from the center
of receiver point within 8 meters from the screen。
3.The controller will not work if the signal is covered by somthing。
4.Keep the controller far away from high temperature and humid situation。
5.Please change the battery when the signal is weak。
6.Please take the battery out if the controller was not being used for long
time。
Controller Battery Installation
1.Turn the controller around，push to open the cover as guide arrow.
2.Put the battery in according to the guide of cathode anode。
3.Close the cover。
二. External Control System
Four control systems are available
for motorized screen
(1)Manual Control
(2)Infrared Remote Control (IR)
(3)Dry Contact
(4)Switch
EXT CTRL
TRIG
EXT IR
Trigger
Dry Contact/RS232
External Infrared Receiver
B. Infrared Remote Control：
Because of the recessed mount, the
external infrared EXT lr input must be in
serted by external infrared receiver, then
please fix it in eyes for control.
External Infrared Input
A.Manual Control：
The manual control button is under
power box:
(Close to power line)Cyclic Control
Cyclic Control
Up
Stop
Down
Stop
C. Trigger ：
1. Please connect 2,5mm plug of trigger to
the TRIG input on the screen; connect 3.5mm
plug to the output on trigger (only for the equip
ments which have trigger function)
2. The projection screen will automatically
lower when the projector is on. It will automatically
retract when the projector is turned off
Trigger Line
Projector
TRIGGER
This screen needs to be recessed into the ceiling, and this instruction manual shows us the grille-ceiling and
wood-ceiling as example. Please install the screen according to different applications. This screen needs to be
recessed at the best viewing angle in order to improve the image. Take out all the parts from the packaging and
follow the accessories guideline to ensure you have all parts.
M12 Bar
M12 Nut
Hook Brooch
H
1
0
0
m
m
m
in
u
s
100. 0
Mz2 Screw (4pcs)
A
p
p
ro
x
im
a
te
ly
1 5
0
m
m
Installation Instruction
Back View