Dukane Imagepro 28a7250 Projector Users Manual

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9
u uu u
uPowering On the Projection Display.
4 44 4
4Switch on the power; then turn on the lamp by pressing “STANDBY”
button.
Press the “ I ” sign of the power switch to turn on the projection display.  After a
few seconds, press the “Power on/Standby” button to power on the projection
lamp.  At this time, the “Power on/Standby” indicator (the Green Light, see follow-
ing  figure) will be illuminated.
*If you wish to turn off the projection display for a short period of time, press
the “Power on/Standby” button.  The Amber Light will illuminate.  This indi -
cates the projection lamp is powered off and is cooling down.
*If you want to turn on the projection lamp again, you must wait at least 1
minute until the Amber Light is OFF.  Be sure the Amber Light is in OFF status
so that you can press the “Power on/Standby” button to turn on the projection
lamp.
u uu u
uPowering Off the Projection Display
4 44 4
4Turn off lamp power first for three minute and then switch off the power.
Press “Power On/Standby” button to make the display in “Standby” mode first and
wait for three minutes, then you can switch off the power.
* After pressing the “Power on/Standby” button , you will see a message-
“Power off the lamp?”.  Press the “Power on/Standby” button again to turn
off  the lamp.  Otherwise the message will disappear itself 5 seconds later.
*The projection display will automatically shut down when the lamp is powered
o f f  and is not turned back on within 5 minutes.  Please switch off the
power if this occurs.
*Always remember to turn off the projection lamp first and allow it to cool for a
few minutes before switching off the power.
Powering On/Off the Projection Display
Power Switch Green Light
Amber Light 
						

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10
qPositioning the projection display
(projection distance and image size)
qSlide the lens latch and pop up the projection lens.  Switch on the power and
press the “Power on/Standby” button.  See “Powering On/Off the Projection
Display” on page 9 for more information.
qAdjusting the screen image.
1. Rotate the projection lens to focus the image.
2. Slide the keystone correction button to adjust image shape.
3. Adjust the elevation:
(1) Pull out the carrying handle.
(2) Lift the projection display to the desired angle.
(3) Press down on the elevator node to loosen the elevator foot.
Keystone Correction
Carrying Handle
Power Switch Power on/
Standby Buttons
Lens Latch
Elevator NodeLens
Adjusting the Image Size
Projection
Distance5 ft.
(1 . 5  m )6.5 ft.
(2 m)9.5 ft.
(3 m)13 ft.
(4 m)20 ft.
(6 m)
Image Siz e
(diagonal)40
(1.01m)
(m i n.)60
(1.52m)80
(2.03m)11 0 
(2.79m)160
(4.06m)
(max.) 
						

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User Control Overview
There are two ways for you to control the functions: panel control and remote control.
wPanel Control
POWER ON
STANDBYRESET
MENU ENTER
4 Directional  Keys
wRemote Control
Zoom in/Zoom out Source Selection
VolumeEnter/Pointer Power on/Standby
On-Screen Menus Directional Select Keys
FREEZE CURTAIN ON
STANDBY
ZOOM IN ZOOM OUT SOURCE
ENTER
POINTER MENU
MUTE
VOLUME
DRAG
R
L
Freeze
LIGHT
Mouse Left Button Down
Right Mouse Button
/Backlight Function
Left Mouse Button
The Joystick
(Mouse Cursor Function)
Curtain
User Controls 
						

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12
wOSD Menus
The OSD (On-Screen Display) menus will allow you to easily adjust the display
functions.  Press the “MENU” button for the OSD menu options.
4When in computer sources,
the OSD will be:
Language
Contrast
Tracking
Frequency
Custom Memory
Audio
Source
Rear Projection
Ceiling Projection
Auto Image
Lamp Reset
Lamp Warning
Exit
4When in video sources,
 the OSD will be:
Language
Contrast/Brightness
Color/Tint
Audio
Source
Rear Projection
Ceiling Projection
Lamp Reset
Lamp Warning
Exit 
						

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Function Descriptions
4Power On/StandbyPress the “Power On/Standby” button to turn on the
projection lamp.
Press “Menu” button to pop up the OSD menu.
Press “Reset” to return the display parameters of the
current mode to its factory default settings.
“Enter” is used for confirming your selection.
(1) Use 
5or
6 button to select items.  Use 
3or
4 to make
adjustments for your selection.
(2) Use 
5or
6 button to change vertical positioning of the
image; and 
3or
4button to change the horizontal
positioning of the image.
Choose “Language” item to select your choice of English,
French, German, Spanish, Italian, Japanese and Chinese.
(1) Volume adjustments: “+”, “-”, “Mute”
(2) Audio adjustments: Bass, Treble, Balance, Volume, 4
sound modes.
Use “ Source” control to choose between video and com-
puter source.
Choose this function from OSD menu for a rear projection.
4Menu
4Reset
4Enter
4Four Directional
Select Keys
4Audio
4Source
wBasic Functions:
4
Language
4Rear Projection 
						

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Choose this funtion from OSD menu for a ceiling mounted
projection.
After changing a new lamp, reset the lamp life timer from
OSD menus.
Choose this function to show or hide the warning
message.
Choose “Exit” item to leave OSD menu.
4Exit
4Lamp Warning
4Lamp Reset
4Ceiling Projection
4ContrastPress the “Pointer” button to show a hand shape pointer.
Use
5,
6,
3or
4button to move pointer around the
projected image.
Press the “Freeze” button to still the screen image.
Press “Curtain” button to cover all the screen, then use
5or
6to pull up or down the curtain.
Press “Zoom In” button to enlarge the projected image,
“Zoom Out” to resume the image.
Choose this function from OSD menu to adjust contrast of
the image.
4Curtain
4Zoom In/Zoom Out
4Freeze
wPresentation Functions - computer source
4
Pointer 
						

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Choose “Tracking” item to synchronize the signal timing
of the display to that of the graphic card.  When you
experience an unstable or flickering image, use this
function to correct it.
“Frequency” is for changing the display data frequency
to match the frequency of your computer’s graphic card.
When you experience a vertical flickering bar, use this
function to make an adjustment.
This function enables you to save your current settings
for the computer source.  To use this function, first
choose “Custom Memory” from OSD menus, and go to
the custom group you need (such as “Custom 3”), then
select “Save” and press “Enter” to save your current
settings; or choose “Open” and press “Enter” to load
your preset settings. There are six groups of custom
memories for your use.
If you want to come back to RGB standard source, go to
the “RGB Standard” mode located before “Custom 1” in
Custom Memory OSD menus.
* When opening your preset custom setting, you may
experience a “Invalid” message appearing on the
screen. This means the computer you connected or
the current setting is the wrong one, not what you
preset in the projection display.
* The “Reset” function of this projection display
only works in RGB Standard mode.
Choose “Auto Image” from OSD menus to obtain an
optimum quality for your projected image.
* “Auto Image” function will not support 1024 x
768 resolution.
* This feature could not perform well in case of
input weak signal from VGA cable.
4Auto Image
4Tracking
4Frequency
4Custom Memory
Language
Contrast
Tracking
Frequency
Custom Memory
Audio
Source
Rear Projection
Ceiling Projection
Auto Image
Lamp Reset
Lamp Warning
Exit 
						

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wPresentation Functions -- video source
To adjust the contrast or brightness of the image, select
“Contrast/Brightness” from OSD menus.
To adjust the color or tint of the image, select “Color/
Tint” from OSD menus.
Press the “Freeze” button to still the screen image.4Contrast/Brightness
4Color/Tint
4Freeze 
						

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Troubleshooting
If you are experiencing trouble with the projection display, refer to the follows.  If the
problem persists, please contact your local dealer or our service center.
Problem: No image appears on screen.

Press “Power on/Standby” button.

Ensure all the cables and power connections are correctly and securely connected
as described in the “Installation” section.

Ensure the pins of connectors are not crooked or broken.

Check if the projection lamp has securely installed.  Please refer to the “Changing
the lamp” section.

Ensure the cooling fan is on.  If not, you may need to change the fuse.  Please refer
to the “Changing the fuse” section.
Problem: Partial, scrolling or incorrectly displayed image.

If you are using a PC:
Resolution of your computer is higher than 800x600.  Follow the steps outlined
below to reset the resolution.
For Windows 3.x:
1. In the Windows Program Manager, click the “Windows Setup” icon in the Main
group.
2. Verify that your Display resolution setting is less than or equal to 800x600.
For Windows 95:
1. Open “My Computer” icon, the “Control Panel” folder, and then double click the
“Display” icon.
2. Select the “Setting” tab.
3. In the “Desktop Area” you will find the resolution setting.  Verify that the
resolution setting is less than or equal to 800x600 resolution.
If the projection display is still not projecting the whole image, you will need
to also change the monitor display you are using. Refer to the following steps.
4. Follow above steps 1~2. Click on the “Change Display Type” button.
5. Select the “Change” button under the “Monitor Type” box.
Appendices 
						

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If you are using a Notebook PC:
1. You are required to implement above steps of resolution setting of computer first.
2. Switch the Notebook PC display to the “external display only” or “CRT only”
mode.

If you are using an Apple Macintosh or Apple PowerBook:
1. Insert a Mac signal adapter and change the mode into Macintosh 13” of 640 x
480 resolution.
2. Change the adapter into VGA mode for IBM PC 640 x 480, 800 x 600, or 1024
x 768 display settings.

If you are experiencing difficulty in changing resolutions or your monitor freezes,
restart all the equipment and the projection display.
Problem: The screen of the Notebook or PowerBook computer is not display-
ing your presentation.

If you are using Notebook PC:
Some Notebook PCs may deactivate their own computers’ screens when a
second display device is in use. Each of them has different way to be reactivated.
Refer to your computer’s documentation for detailed information.

If you are using an Apple PowerBook:
In Control Panels, open the PowerBook Display to select Video Mirroring “On”.
Problem: Image is unstable or flickering

Use “Tracking” to correct it.

Change the monitor color setting from your computer.
Problem: Image has vertical flickering bar.

Use “Frequency” to make an adjustment.

Check and reconfigure the display mode of your graphic card to make it compatible
with the product.6. Under “Manufacturers”, select “Standard monitor types”
7. Verify that the resolution setting of the monitor display is less than or equal to
800x600.