Dukane Imagepro 8755j Projector Users Manual

							1
Projector
8755J/8919H/8920H
User's Manual (detailed)  
Operating Guide
Thank you for purchasing this projector.►Before using this product, please read all manuals for this 
product. Be sure to read “Safety Guide” first. After reading them, store them in a 
safe place for future reference. WARNING
• The information in this manual is subject to change without notice.
• The manufacturer assumes no responsibility for any errors that may appear in 
this manual.
• The reproduction, transfer or copy of all or any part of this document is not 
permitted without express written consent. NOTE
Trademark acknowledgment Various symbols are used in this manual. The meanings of these symbols are 
described below. 
About this manual
WARNING
CAUTION
This symbol indicates information that, if ignored, could possibly 
result in personal injury or even death due to incorrect handling.
This symbol indicates information that, if ignored, could possibly 
result in personal injury or physical damage due to incorrect 
handling.
Please refer to the pages written following this symbol.

•   Mac
® is a registered trademark of Apple Inc.
•   Windows® is a registered trademark of Microsoft Corporation in the U.S. and/or 
other countries.
•   VESA and DDC are trademarks of the Video Electronics Standard Association.
All other trademarks are the properties of their respective owners.
NOTICE This entry notices of fear of causing trouble. 
						

							2
Contents
Contents
About this manual  . . . . . . . . . . .1
Contents   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .2
Projector features   . . . . . . . . . . .3
Preparations   . . . . . . . . . . . . . . . 3
Checking the contents of package ...3
Part names   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .4
Projector  . . . . . . . . . . . . . . . . . . . . . . 4
Control panel  ................... 5
Rear panel  . . . . . . . . . . . . . . . . . . . . 5
Remote control  . . . . . . . . . . . . . . . . . 6
Setting up   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .7
Arrangement  ................... 7
Connecting your devices  ..........9
Connecting power supply  . . . . . . . .11
Using the security bar and slot  . . . .11
Remote control   . . . . . . . . . . . .12
Installing the batteries  ...........12
About the remote control signal  . . .12
Changing the frequency of remote control signal . .13
Using as a simple PC mouse & keyboard . . 13
Power on/off   .  .  .  .  .  .  .  .  .  .  .  .  .  .14
Turning on the power  . . . . . . . . . . .14
Turning off the power  . . . . . . . . . . .14
Operating   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .15
Adjusting the volume  ............15
Temporarily muting the sound  .....15
Selecting an input signal  .........15
Searching an input signal  . . . . . . . .17
Selecting an aspect ratio  .........17
Adjusting the projector's elevator  . .18
Adjusting the zoom and focus  .....18
Using the automatic adjustment feature ...19
Adjusting the position  . . . . . . . . . . .19
Correcting the keystone distortions . .20
Using the magnify feature  ........20
Temporary freezing the screen  ....21
Temporarily blanking the screen   . .21
Using the menu function   . . . . . . . .22
EASY MENU .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 24
As p e c t, Au t o k e y s t o n e ex e c u t e,  
k
e y s t o n e, pi c t u r e m o d e, ec o m o d e,  
m
i r r o r, re s e t, Fi l t e r t i m e, lA n g u Ag e, 
A
d v An c e d m e n u, ex i t

PICTURE menu   .  .  .  .  .  .  .  .  .  .  . .26
Br i g h t n e s s, co n t r As t, gAm m A,  
c
o l o r t e m p, co l o r,  ti n t, sh Ar p n e s s,  
A
c t i v e i r i s, my m e m o r y
IMAGE menu   .  .  .  .  .  .  .  .  .  .  .  .  .  .29
As p e c t, ov e r s c An, v p o s i t i o n, h p o s i t i o n,  
h 
p h As e, h s i z e, Au t o Ad j u s t e x e c u t e
INPUT menu   .  .  .  .  .  .  .  .  .  .  .  .  .  .31
pr o g r e s s i v e, vi d e o n r, co l o r s p Ac e,  
c
o m p o n e n t, vi d e o F o r m At, co m p u t e r i n,  
F
r Am e l o c k, re s o l u t i o n
SETUP menu   . . . . . . . . . . . . .  .34
Au t o k e y s t o n e e x e c u t e, ke y s t o n e,  
e
c o m o d e, mi r r o r, st A n d By m o d e,  
m
o n i t o r o u t
AUDIO menu   .  .  .  .  .  .  .  .  .  .  .  .  .  .36
vo l u m e, sp e Ak e r, Au d i o s o u r c e
SCREEN menu   . . . . . . . . . . . . . 37
lAn g u Ag e, me n u p o s i t i o n, BlA n k,  
s
t A r t u p, MyScreen, MyScreen Lock,  
m
e s s Ag e, so u r c e n Am e, te m p l At e, c.c.
OPTION menu   .  .  .  .  .  .  .  .  .  .  .  .  .42
Au t o s e Ar c h, Au t o k e y s t o n e,  
d
i r e c t o n, Au t o o F F, lAm p t i m e,  
F
i l t e r t i m e, my B u t t o n, my s o u r c e, 
s
e r v i c e
SECURITY menu   . . . . . . . . . .  .47
se c u r i t y p A s s w o r d c h An g e,  
MyScreen pA s s w o r d, pi n l o c k,  
t
r An s i t i o n d e t e c t o r, my t e x t pA s s w o r d,  
m
y t e x t d i s p l Ay, my t e x t w r i t i n g
Maintenance   . . . . . . . . . . . . .  .53
Replacing the lamp  .............53
Cleaning and replacing the air filter  . .55
Other care .................... 57
Troubleshooting   .  .  .  .  .  .  .  .  .  . .58
Related messages  . . . . . . . . . . . . .58
Regarding the indicator lamps  . . . .59
Shutting the projector down  . . . . . .
60
Resetting all settings  

............60
Phenomena that may be easy  
   
to be mistaken for machine defects . . 61
Specifications   . . . . . . . . . . . . . 64
 
						

							3
Projector features / Preparations
• Keep the original packing materials, for future reshipment. Be sure 
to use the original packing materials when moving the projector. Use special 
caution for the lens. NOTE
Projector features
The projector provides you with the broad use by the following features.
Preparations
Checking the contents of  package
ü      This projector has a variety of I/O ports that supposedly cover for any 
business scene.
ü      This projector realizes the large projection image, even if in a small space.
ü     
The new double layer filter system is expected to function longer and of fers 
you less maintenance frequency.
Your projector should come with the items 
shown below. Check that all the items are 
included. Require of your dealer immediately if 
any items are missing.
(1) Remote control with two AA batteries 
(2) Power cord 
(3) Computer cable
(4)   Lens cover
(5)   User’s manuals (Book x1, CD x1)
(6) Security label
(5)
(6)
(2)
(3)
(1)VIDEODOC.CAMERA
KEYSTONE
ASPECT SEARCH
BLANK
MUTE
MY BUTTONPOSITION1 2
ESC ENTERMENURESET
COMPUTER
MY SOURCE/AUTOMAGNIFYPAGE
      UPVOLUMEDOWNo
ONOFF9×
FREEZE(4) 
						

							4
Part names
Part names
Projector
(1)   Lamp cover (53) 
The lamp unit is inside.
(2) Focus ring (
18)
(3) Zoom ring (
18)
(4) Control panel (
5)
(5) Elevator buttons (x 2) (
18)
(6) Elevator feet (x 2) (
18)
(7) Remote sensor (
12)
(8) Lens (
57)
(9) Intake vents
(10)   Filter cover (
55) 
The air filter and intake vent 
are inside.
(11) Speaker (
36)
(12) Exhaust vent
(13)   AC IN (AC inlet) (
11 )
(14) Rear panel (
5)
(15) Security bar (
11 )
(16) Security slot (
11 )
►HOT! : Do not touch around the lamp cover and the exhaust 
vents during use or just after use, since it is too hot.
►Do not look into the lens or vents while the lamp is on, since the strong light is 
not good for your eyes. 
►Do not handle the elevator buttons without holding the projector , since the 
projector may drop down. WARNING
►Maintain normal ventilation to prevent the projector from 
heating up. Do not cover, block or plug up the vents. Do not place anything that 
can stick or be sucked to the vents, around the intake vents. Clean the air filter 
periodically.
►Do not use the security bar and slot to prevent the projector from falling down, 
since it is not designed for it. CAUTION
HOT!
HOT!(12)
HOT!
(1)
(2) (3) (4)
(7)
(9) (8)
(10) (6)(5)
(12)
(11)
(6)
(6) (6)
(14)
(15) (13)
(4)
(12) (1)
(16)
(14)
(11) 
						

							5
Part names
Control panel
(1) STANDBY/ON button (14)
(2) INPUT button (
15, 22)
(3)   MENU button (
22) 
It consists of four cursor buttons.
(4) POWER indicator (
11, 14, 59)
(5) TEMP indicator (
59)
(6) LAMP indicator (
59)
Rear panel (9)
(1) AUDIO IN1 port 
(2) AUDIO IN2 port 
(3) COMPUTER IN1 port 
(4) COMPUTER IN2 port 
(5) MONITOR OUT port 
(6) Shutdown switch (
60)
(7) CONTROL port 
►Use the shutdown switch only when the projector is not 
turned off by normal procedure, since pushing this switch stops operation of the 
projector without cooling it down. CAUTION
(8) USB port (13)
(9)   COMPONENT 
(Y, Cb/Pb, Cr/Pr) ports 
(10) VIDEO port 
(11)   S-VIDEO port 
(12) AUDIO IN3 (R, L) ports 
(13) AUDIO OUT (R, L)  ports 
(7)
(2)(4)
(9)(10) (13)
(11)
(3)
(5) (6) (1)
(8)
(12)
(1) (3)
(2)
(4) (6)(5) 
						

							6
Part names
Remote control
(1) VIDEO button (16)
(2) COMPUTER button (
16)
(3) SEARCH  button (
17)
(4) STANDBY/ON button (
14)
(5) ASPECT button (
17)
(6) AUTO button (
19)
(7) BLANK button (
21)
(8) MAGNIFY - ON button (
20)
(9) MAGNIFY - OFF  button (
13, 20)
(10)  MY SOURCE/DOC.CAMERA button (
16, 44)
(11) VOLUME - button (
13, 15)
(12) PAGE UP button (
13)
(13) PAGE DOWN button (
13)
(14) VOLUME + button (
15)
(15) MUTE button (
15)
(16) FREEZE button (
21)
(17) MY BUTTON - 1 button (
44)
(18) MY BUTTON - 2 button (
44)
(19) KEYSTONE button (
20)
(20) POSITION  button (
19, 20, 23)
(21) MENU button (
22)
(22) ▲/▼/◄/► cursor buttons (
13, 22)
(23) ENTER button (
13, 22)
(24) ESC button (
13, 22)
(25) RESET button (
13, 22)
(26) Battery cover (
12)
Back of  
the remote control
(2)
(1)
(6)
(5)
(16)
(8)
(9)
(19)
(17)
(20)
(22)
(24)
(10)
(4)
(3)
(7)
(12)
(14)
(11)
(13)
(15)
(18)
(21)
(23)
(25)
(26)
VIDEODOC.CAMERA
KEYSTONE
ASPECT
SEARCH
BLANK
MUTE
MY BUTTON
POSITION
12
ESC ENTERMENURESET
COMPUTER
MY SOURCE/AUTO
MAGNIFYPAGE
      UPVOLUME
DOWNo
ONOFF
9×
FREEZE 
						

							7
Setting up
Install the projector according to the environment and manner the projector will be 
used in.
Arrangement
Refer to the illustrations and tables below to determine screen size and projection 
distance.
The values shown in the table are calculated for a full size screen: 1024 x 768
  a  Screen size (diagonal)   b  Projection distance (±10%)
 c1 , c2  Screen height (±10%)
On a horizontal surface
Suspended from the ceiling
• Keep a space of 30 cm or more between 
the sides of the projector and other 
objects such as walls.
• For the case of installation in a special 
state such as ceiling mount, the specified 
mounting accessories  (
64) and service 
may be required. Before installing the 
projector, consult your dealer about your 
installation.
Setting up
   
Screen size (diagonal) 4 : 3 screen
16 : 9 screen
  
Projection distance  Screen 
height Screen 
height  Projection distance 
Screen 
height  Screen 
height 
min. max. min. max.
type 
(inch) m m inch m inch cm inch cm inch m inch m inch cm inch cm inch
30
0.8  0.9 341.0 41 41 16 5 2 1.0 381.1 45 39 15 -1 0
40 1.0  1.2 461.4  55 55 22 6 2 1.3 511.5 60 51 20 -2 -1
50 1.3  1.5 581.8  69 69 27 8 3 1.6 641.9 76 64 25 -2 -1
60 1.5  1.8 702.1 83 82 32 9 4 1.9772.3 91 77 30 -2 -1
70 1.8  2.1 822.5 97 96 38 1142.3 892.7106 90 35 -3 -1
80 2.0  2.4 942.8 112 110 43 12 5 2.6102 3.1122 103 41 -3 -1
90 2.3  2.7 1063.2126 123 49 14 5 2.9115 3.5137 116 46 -4 -1
100 2.5  3.0 1183.6140 137 54 15 6 3.3128 3.9153 129 51 -4 -2
120 3.0  3.6 1424.3168 165 65 18 7 3.9154 4.7183 154 61 -5 -2
150 3.8  4.5 1775.3211 206 81 23 9 4.9193 5.8229 193 76 -6 -2
200 5.1  6.0 2377.1281 274 108 30 12 6.6258 7.8306 257 101 -8 -3
250 6.4  7.5 2978.9352 343 135 38 15 8.2323 9.7383 322 127 -10 -4
300 7.6  9.0 35610.7 422 411 162 46 18 9.9388 11.7 460 386 152 -12 -5
babc1c1c2c2 
						

							8
Setting up
►Place the projector in a stable horizontal position. If the 
projector falls or is knocked over, it could cause injury and/or damage to the 
projector. Using a damaged projector could then result in fire and/or electric 
shock.
•   Do not place the projector on an unstable, slanted or vibrational surface such 
as a wobbly or inclined stand.
•   Do not place the projector on its side, front or rear position. 
•   Consult with your dealer before a special installation such as suspending from 
a ceiling or somewhere else.
►Place the projector in a cool place, and ensure that there is sufficient 
ventilation. The high temperature of the projector could cause fire, burns and/or 
malfunction of the projector.
•   Do not stop-up, block or otherwise cover the projector's vents.
•   Keep a space of 30 cm or more between the sides of the projector and other 
objects such as walls.
• Do not place the projector on metallic thing or anything weak in heat.
•   Do not place the projector on carpet, cushions or bedding.
•   Do not place the projector in direct sunlight or near hot objects such as heaters.
•   Do not place anything near the projector lens or vents, or on top of the 
projector.
•   Do not place anything that may be sucked into or stick to the vents on the 
bottom of the projector. This projector has some intake vents also on the 
bottom.
►Do not place the projector anyplace where it may get wet. Getting the projector 
wet or inserting liquid into the projector could cause fire, electric shock and/or 
malfunction of the projector.
•   Do not place the projector in a bathroom or the outdoors.
•   Do not place anything containing liquid near the projector.
►Use only the mounting accessories the manufacturer specified, and leave 
installing and removing the projector with the mounting accessories to the 
service personnel.
•   Read and keep the user’s manual of the mounting accessories used.WARNING
►Avoid placing the projector in smoky, humid or dusty place. 
Placing the projector in such places could cause fire, electric shock and/or 
malfunction of the projector.
• Do not place the projector near humidifiers, smoking spaces or a kitchen.
►Position the projector to prevent light from directly hitting the projector's remote 
sensor. CAUTION
Arrangement (continued) 
						

							9
Setting up
      Y       CB/PB     CR/PRCOMPONENT  VIDEO OUT L   R
 
AUDIO OUTVIDEO OUT L    R
 
AUDIO OUT
AUDIO OUTRGB OUTAUDIO OUTRGB OUTRS-232CRGB IN
 L    R
 
AUDIO OUTS-VIDEO OUT
USB
 L    R
    AUDIO IN
Connecting your devices
Be sure to read the manuals for devices before connecting them to the projector . 
Make sure that all the devices are suitable to be connected with this product, and 
prepare the cables required to connect. Please refer to the following illustrations 
to connect them.
VCR/DVD player
Speakers(with an 
amplifier)
PCMonitor
►Do not disassemble or modify the projector and accessories.
►Be careful not to damage the cables, and do not use damaged cables. WARNING
►Turn off all devices and unplug their power cords prior to 
connecting them to projector. Connecting a live device to the projector may 
generate extremely loud noises or other abnormalities that may result in 
malfunction or damage to the device and the projector.
►Use appropriate accessory or designated cables. Ask your dealer about non-
accessory cables which may be required a specific length or a ferrite core by 
the regulations. For cables with a core only at one end, connect the end with 
the core to the projector.
►Make sure that devices are connected to the correct ports. An incorrect 
connection may result in malfunction or damage to the device and the projector.
NOTICE ►Use the cables with straight plugs, not L-shaped ones, as the 
input ports of the projector are recessed. CAUTION 
						

							10
Setting up
• Be sure to read the manuals for devices before connecting them to 
the projector, and make sure that all the devices are suitable to be connected 
with this product. Before connecting to a PC, check the signal level, the signal 
timing, and the resolution.
-   Some signal may need an adapter to input this projector.
-   Some PCs have multiple screen display modes that may include some signals 
which are not supported by this projector. 
-    Although the projector can display signals with resolution up to UXGA  
(1600X1200), the signal will be converted to the projector’s panel resolution 
before being displayed. The best display performance will be achieved if the 
resolutions of the input signal and the projector panel are identical.
• While connecting, make sure that the shape of the cable's connector fits the 
port to connect with. And be sure to tighten the screws on connectors with 
screws.
• When connecting a laptop PC to the projector, be sure to activate the PC’s 
external RGB output. (Set the laptop PC 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 PC.
• When the picture resolution is changed on a PC 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 “Y es/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.
• In some cases, this projector may not display a proper picture or display 
any picture on screen. For example, automatic adjustment may not function 
correctly with some input signals. An input signal of composite sync or sync on 
G may confuse this projector, so the projector may not display a proper picture. NOTE
About Plug-and-Play capability
Plug-and-Play is a system composed of a PC, its operating system and 
peripheral equipment (i.e. display devices). This projector is VESA DDC 2B 
compatible. Plug-and-Play can be used by connecting this projector to a PC 
that is VESA DDC (display data channel) compatible. 
• Take advantage of this feature by connecting an RGB cable to the 
COMPUTER 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 PC as this projector is a Plug-and-
Play monitor.
Connecting your devices (continued)