Dukane 8755D Projector User Manual

							
9

Adjusting the projector's elevator
CAUTION  ►If you press the elevator button without holding the projector, 
the projector might crash down, overturn, smash your fingers and possibly 
result in malfunction. To prevent damaging the projector and injuring yourself, 
always hold the projector whenever using the elevator buttons to adjust the 
elevator feet.
►Do not incline the projector rightward or leftward. Also do not incline it 
backward or forward exceeding 9 degrees. Exceeding these range could cause 
malfunction, and could shorten the lifetime of the consumables.
►Except for inclining by the elevator feet adjustment, place the projector 
horizontally.
You can use the elevator feet to make adjustments if the surface on which you 
need to set the projector is uneven or if you otherwise need to adjust the angle of 
projection. The adjustment range of the elevator feet is 0 to 9 degrees.
1. After making sure that the projector is cool adequately, press and hold in the 
elevator buttons  while holding the projector. 
   The elevator buttons and the elevator feet are on the both sides.
2. Raise or lower the projector to the desired height and release the elevator 
buttons.  
   When you release the elevator buttons, the elevator feet will lock into position.
3. If necessary, you can also finely adjust the height of the projector by twisting 
the elevator feet by hand.
Setting up
Elevator feetElevator button 
						

							
10

Setting up
Using the Security Bar
WARNING  ►Do not use the security bar to prevent the projector from 
falling. Dropping or knocking over the projector may cause damage or injury .
A commercial anti-theft chain or wire can be attached to the security bar on the 
projector. 
1. How to attach 
An anti-theft chain or wire can be 
attached as shown in the illustration. 
(Anti-theft chains or wires of up to 
10mm in diameter can be used)
Anti-theft chain or wire[sold separately]
Security Bar
CAUTION  ►The security bar is not a comprehensive theft prevention 
measure. It is intended to be used as an extra theft prevention measure. 
						

							
11

Setting up
Connecting your devices
CAUTION  ►Turn off all devices prior to connecting them to the projector. 
Attempting to connect a live device to the projector may generate extremely 
loud noises or other abnormalities that may result in malfunction and/or damage 
to the device and/or projector.
►Use the accessory cable or a designated-type cable for the connection. 
Some cables have to be used with core set. A too long cable may cause a 
certain picture degradation. Please consult with your dealer for details. For 
cables that have a core only at one end, connect the core to the projector .
►Make sure that you connect devices to the correct port. Incorrect connection 
may result in malfunction and/or damage to the device and/or projector . 
NOTE  • Whenever attempting to connect a laptop computer to the projector, be sure 
to activate the laptop’s RGB external image output (set the laptop to CRT display or to 
simultaneous LCD and CRT display). For details on how this is done, please refer 
to the 
instruction manual of the corresponding laptop computer.
• Secure the screws on the connectors and tighten.
• Some computers may have multiple display screen modes. Use of some of these 
modes will not be possible with this projector.
• For some RGB signal modes, the optional M ac adapter is necessary.
• When the image resolution is changed on a computer, depending on an input, 
automatic adjustment function may take some time and may not be completed. In this 
case, you may not be able to see a check box to select “Yes/No” for the new resolution 
on Windows. Then the resolution will go back to the original. It might be recommended 
to use other CRT or LCD monitors to change the resolution.
About Plug-and-Play capability
Plug-and-Play is a system composed of the computer, its operating system and 
peripheral equipment (i.e. display devices). This projector is compatible with VESA DDC 
2B. Plug-and-Play can be achieved by connecting this projector to a computer is VESA  
DDC (display data channel) compatible. 
• Please take advantage of this function by connecting the accessory RGB cable to the 
RGB IN1 port (DDC 2B compatible). Plug-and-Play may not work properly if any other 
type of connection is attempted.
• Please use the standard drivers in your computer as this projector is a Plug-and-Play 
monitor. 
						

							
12

Setting up
Examples of connection with a computer 
* In the default setting, the AUDIO IN1 port is the audio port for the RGB IN1 and RGB IN2 
ports. To change the settings, refer to the AUDIO item in the SETUP menu. 
(34)
Y R
L
AUDIO IN
2
AUDIO OU
T
CONTROL
RGB IN1
RGB IN2 USB
RGB OUT
AUDIO IN1
VIDE
O
S-VIDEO
CB/PB
CR/PRK
Y R
L
AUDIO IN
2
AUDIO OU
T
CONTROL
RGB IN1
RGB IN2 USB
RGB OUT
AUDIO IN1
VIDE
O
S-VIDEO
CB/PB
CR/PRK
Y R
L
AUDIO IN
2
AUDIO OU
T
CONTROL
RGB IN1
RGB IN2 USB
RGB OUT
AUDIO IN1
VIDE
O
S-VIDEO
CB/PB
CR/PRK
Y R
L
AUDIO IN
2
AUDIO OU
T
CONTROL
RGB IN1
RGB IN2 USB
RGB OUT
AUDIO IN1
VIDE
O
S-VIDEO
CB/PB
CR/PRK
RGB IN2
RGB OUT
Audio outRS-232CRGB out
Stereo mini audio cable 
RGB cable
RGB in
RGB cable
Audio out
Stereo mini audio cable 
RS-232C cable
Connecting to a monitor (output)
Connecting to a  speaker with amplifier (output)
USB
RGB out
Use the RGB IN OUT switch to select RGB IN2 (RGB IN2 is selected if the switch is not pushed in). 
Use the RGB IN OUT switch to select RGB OUT (RGB OUT is selected if the switch is pushed in).
RGB cable
Audio in
USB cable
Stereo mini 
audio cable  
						

							
13

Y R
L
AUDIO IN
2
AUDIO OUTCONTROL
RGB IN
1
RGB IN2 USB
RGB OUT
AUDIO IN1
VIDE
O
S-VIDEO
CB/PB
CR/PRK
Y R
L
AUDIO IN
2
AUDIO OUTCONTROL
RGB IN
1
RGB IN2 USB
RGB OUT
AUDIO IN1
VIDE
O
S-VIDEO
CB/PB
CR/PRK
Y R
L
AUDIO IN
2
AUDIO OUTCONTROL
RGB IN
1
RGB IN2 USB
RGB OUT
AUDIO IN1
VIDE
O
S-VIDEO
CB/PB
CR/PRK
Y R
L
AUDIO IN
2
AUDIO OUTCONTROL
RGB IN
1
RGB IN2 USB
RGB OUT
AUDIO IN1
VIDE
O
S-VIDEO
CB/PB
CR/PRK

Setting up
Examples of connection with a VCR/DVD player
Audio (R) out
Video  out
Audio cable 
Audio/Video
 cable 
Audio (R) out
S-Video
 out
S-Video cable 
Audio (R) out  
Component video out
Audio cable 
Audio (L) out
Audio (L) out
Y
CB/PB
CR/PR
Audio (L) out  
Component video cable 
* In the default setting, the AUDIO IN2 L/R port is the audio port for the VIDEO, S-VIDEO 
and COMPONENT VIDEO ports. To change the settings, refer to the AUDIO item in the 
SETUP menu.
 (34)

Y R
L
AUDIO IN2
AUDIO OUTCONTROL RGB IN1
RGB IN2USB
RGB OU T
AUDIO IN1
LAN
LINK
ACT
VIDE
O
S-VIDEO
CB/PB
CR/PR
K

8755D-RJ Only! 
						

							
14

Setting up
Connecting power supply
WARNING  ►Please use extra caution when connecting the power cord, as 
incorrect or faulty connections may result in fire and/or electrical shock.
• Only use the power cord that came with the projector. If it is damaged, contact 
your dealer to newly get correct one.
• Only plug the power cord into an outlet rated for use with the power cord's 
specified voltage range.
• Never modify the power cord. Never attempt to defeat the ground connection 
of the three-pronged plug.
1. Connect the connector of the power cord to the AC inlet of the projector.
2. Firmly plug the power cord's plug into the outlet. 
AC inlet
Connectorof the power cord 
						

							
15

Putting batteries
WARNING  ►Always handle the batteries with care and use them only as 
directed. Improper use may result in battery explosion, cracking or leakage, 
which could result in fire, injury and/or pollution of the surrounding environment.
• Be sure to use only the batteries specified. Do not use batteries of different 
types at the same time. Do not mix a new battery with used one. 
• 
Make sure the plus and minus terminals are correctly aligned when loading a battery.
• Keep a battery away from children and pets.
• Do not recharge, short circuit, solder or disassemble a battery.
• 
Do not allow a battery in a fire or water. Keep batteries in a dark, cool and dry place.
• If you observe a leakage of a battery, wipe out the flower and then replace a battery. 
If the liquid adheres to your body or clothes, rinse well with water immediately.
1. Remove the battery cover.  
Slide back and remove the battery cover in the direction of the arrow .
2. Insert the batteries. 
 Align and insert the two AA batteries according to their plus and minus   
terminals as indicated in the remote control.
3. Close the battery cover. 
 Replace the battery cover in the direction of the arrow and snap it back into place.
Remote control
Remote control 
						

							
16
Using the remote control
CAUTION  ►Be careful in handling the remote control.
• Do not drop or expose the remote control to physical impact.
• Do not get the remote control wet or place it on wet objects. It may result in 
malfunction.
• Remove the batteries from the remote control and store them in a safe place if 
you won’t be using the remote control for an extended period. 
• Replace the batteries whenever the remote control starts malfunctioning. 
• When strong lights (such as direct sunlight) or light from an extremely close 
range (such as from an inverter fluorescent lamp), hit the projector’s remote 
sensor, the remote control may cause to function. Adjust the direction of the 
projector to keep the light from directly hitting the projector’s remote sensor.
The remote control works with the projector’s remote sensor.
• The range of the remote sensor is 3 meters with a 60 degree range (30 degrees 
to the left and right of the remote sensor).
• Also  a  remote  signal  reflected  in  the  screen  etc.  may  be  available.  If  it  is  difficult 
to send a remote signal to the sensor directly, please try to use the reflected signal.
•  Since  the  remote  control  uses  infrared  light  to  send  signals  to  the  projector 
(Class1  LED),  be  sure  to  use  the  remote  control  in  an  area  free  from  obstacles 
that could block the remote control’s output signal to the projector.
Remote control
30º30ºapprox. 3 meters 
						

							
17
Power on/off
Power on/off
WARNING  ►When the power is on, a strong light is emitted. Do not look into 
the lens of projector. Also do not peep at the inside of projector through a hole.
NOTE  • Turn the power on/off in right order. Please power on the projector prior 
to the connected devices. Power off the projector later than the connected devices.
Turning on the power
1. Make sure that the power cord is firmly and 
correctly connected to the projector and the 
outlet.  
2. Remove the lens cover, and set the power 
switch to the ON position.  
The power indicator will light up in steady orange. 
Then wait several seconds because the buttons 
may not function for these several seconds. 
3. Press the STANDBY/ON button on the projector or the remote control.  
The projector lamp will light up and the POWER 
indicator will begin blinking in green. When the power is 
completely on, the indicator will stop blinking and light in 
green.
To display the picture, select an input signal according to 
the section "Selecting an input signal" (18).
Turning off  the power
This product is able to turn off the main power during the cooling. However, please 
pay special attention to below two points when you do:
(1) Please do not turn the projector on again for at least 1 minute in this case. 
Neglect could shorten the lifetime of the lamp.
(2) During use or immediately after use, do not touch around the lamp and vents 
of the projector (4 ) It could cause a burn.
1. Press the STANDBY/ON button on the projector or the remote control.
The message "Power off?" will appear on the screen for approximately 5 
seconds.
2. Press the STANDBY/ON button on the projector or the 
remote control again while the message appears. 
The projector lamp will go off, and the POWER indicator will 
begin blinking in orange. 
Then the POWER indicator will stop blinking and light in 
steady orange when the lamp cooling is complete.
3. Make sure that the power indicator lights in steady orange, 
and set the power switch to the OFF position. The POWER 
indicator will go off. 
Attach the lens cover.
POWER
(Steady orange)
POWER (Blinking in green)
POWER
(Steady green)
HOMEPAGE UPPAGE DOWNEND
VIDEO RGBSEARCH
FREEZE
OFFONMAGNIFYASPECT AUTOBLANK
MUTEVOLUME
KEYSTONEPOSITION
ES
C ENTERMENU
RESET
STANDBY/ON button
POWER indicator
 Power off ?
POWER
(Blinking in orange)
POWER
(Steady orange) 
						

							
18

Operating
Operating
Adjusting the volume
1. Press the VOLUME button on the remote control. 
A dialog will appear on the screen to aid you in adjusting the volume.
2. Use the cursor buttons ▲/▼ to adjust the volume.
To close the dialog and complete the operation, press the 
VOLUME button again. Even if you don’t do anything, the 
dialog will automatically disappear after a few seconds. 
Temporarily muting the sound
1. Press the MUTE button on the remote control.  
A dialog will appear on the screen  indicating that you have muted the sound. 
To restore the sound, press the MUTE or VOLUME button. 
Even if you don’t do anything, the dialog will automaticallyy
disappear after a few seconds.
Selecting an input signal
1. Press the INPUT button on the projector.  
Each time you press the button, the projector switches its 
input port as below.
             RGB IN1          RGB IN2  
          VIDEO  S-VIDEO  COMPONENT VIDEO
● When the RGB IN2/RGB OUT port functions as an RGB out  port (the RGB IN OUT switch is pushed in), RGB IN2 cannot 
be selected. In that case “RGB2/RGB OUT  RGB OUT” message will be 
displayed.
1. Press the RGB button on the remote control to select an 
input port for the RGB signal. 
Each time you press the button, the projector switches its RGB 
input port as below.
RGB IN1  RGB IN2
● If the RGB button is pushed (when switching from VIDEO to RGB signals) 
when TURN ON is selected for the AUTO SEARCH item in the OPTION menu 
the projector will check the RGB IN1 port first.
 If no input is detected at the port, 
the projector will check the RGB IN2 port.
● When the RGB IN2/RGB OUT port functions as an RGB out port (the RGB IN  OUT switch is pushed in), RGB IN2 cannot be selected. In that case 
“RGB2/
RGB OUT 
 RGB OUT” message will be displayed.
HOMEPAGE UP
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VIDEO RGBSEARCH
FREEZE
OFF
ONMAGNIFY
ASPECT AUTOBLANK
MUTE
VOLUME
KEYSTONE
POSITION
ES
C ENTE
RMENU
RESE
T
HOMEPAGE UP
PAGE DOWNEND
VIDEO RGBSEARCH
FREEZE
OFF
ONMAGNIFY
ASPECT AUTOBLANK
MUTE
VOLUME
KEYSTONE
POSITION
ES
C ENTE
RMENU
RESE
T
HOMEPAGE UP
PAGE DOWNEND
VIDEO RGBSEARCH
FREEZE
OFF
ONMAGNIFY
ASPECT AUTOBLANK
MUTE
VOLUME
KEYSTONE
POSITION
ES
C ENTE
RMENU
RESE
T