Dukane Imagepro 8758 Users Guide

							20
Projector troubleshooting
Problem Solution Result
Image not square Adjust keystone on keypad or Picture menuSquare image
Image not sharpAdjust the focus lens or Sharpness in the 
Picture>Advanced menuCorrect image
Image does not fit 16:9 screenChange aspect ratio to 16:9 in 
Picture>Aspect ratio menuCorrect image
computer
2
networkmonitoroutaudioout
audioin
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audioinserial
control
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in computer
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ABAB
AB 
						

							21
Image upside downTurn off Ceiling in Settings>System menu
Correct image
Image reversed left to rightTurn off Rear in Settings>System menu
Correct image 
Projected colors don’t match source
Adjust color, tint, color temperature, 
brightness, contrast in the menusCorrect image
A
B
AB
A
AB
COLOR
COLOR 
						

							22
Lamp won’t turn on, LED blinking red (page 16)Make sure vents aren’t blocked; allow 
projector to cool for one minute Unplug projector; wait one minute; plug in 
projector and turn it on: lamp lights
Lamp won’t turn on, LED blinking red (page 16)Lamp must be replaced (page 38)
Lamp turns onblinks
red
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							23 Still having problems?
If you need assistance, visit our website or call us. See the inside of the back 
cover for a list of all contact numbers and relevant web addresses.
This product is backed by a limited two-year warranty. An extended war-
ranty plan may be purchased from your dealer. When sending the projector 
in for repair, we recommend shipping the unit in its original packing mate-
rial, or having a professional packaging company pack the unit. Please 
insure your shipment for its full value.Image not centered on screenMove projector, adjust zoom, adjust heightCorrect image
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Adjust horizontal or vertical position in 
Picture>Advanced menuzoom
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							24
Using the keypad buttonsMost buttons are described in detail in other sections, but here is an over-
view of their functions:
power–turns the projector on (page 9) and off (page 14).
menu–opens the on-screen menus (page 29).
select–confirms choices made in the menus (page 29).
up/down arrows–navigates to and adjusts settings in the menus (page 29).
auto image–resets the projector to the source.
presets–cycles through the available preset settings (page 31).
keystone–vertical keystone adjusts the squareness of the image (page 12). 
You can also adjust the horizontal keystone of the LP640 via the menus. See 
page 30.
volume–adjusts sound (page 26).
video and computer–changes the active source. 
menu navigation buttons 
						

							25
Using the remote controlThe remote uses two (2) provided AA batteries. They are easily installed by 
sliding the cover off the remote’s back, aligning the + and - ends of the bat-
teries, sliding them into place, and then replacing the cover.
To operate, point the remote at the projection screen or at the projector (not 
at the computer). The range of optimum operation is about 30 feet (9.14m).
Previous and Next buttons allow you to navigate through your PowerPoint 
presentation while in Slide Show mode. Connect the USB connector on the 
computer cable to your computer to use these buttons. When you do this for 
the first time, the Add New Hardware wizard may appear. See page 10 for 
details on loading the correct USB drivers.
Press the remote’s Menu button to open the projector ’s menu system. Use 
the arrow buttons to navigate, and the Select button to select features and 
adjust values in the menus. See page 29 for more info on the menus.
The remote also has a Powe r button to turn the projector on and off (see 
page 16 for shutdown info), Vo l u m e and Mute buttons to control the sound, 
and Video and Computer buttons to switch between sources.
Two presentation-specific features are also provided. Use the Blank button 
to display a blank screen instead of the current slide (you can choose which 
color is displayed, see page 34); use the Effect button to invoke a user-defin-
able action, such as freeze or zoom (see page 35 to learn to program this but-
ton).
Troubleshooting the remote Make sure the batteries are installed in the proper orientation and are 
not dead. The LED at the top of the remote lights when any button is 
pressed when the battery power is adequate.
 Make sure you’re pointing the remote at the projector, not the com-
puter, and are within the remote range of 30 feet (9.14m).
 If you are trying to advance PowerPoint slides, make sure the USB 
cable is connected. If using a USB cable, make sure the correct drivers 
are installed.
navigation
buttons
previous button
next button 
						

							26
Using the audio To play sound from the projector, connect your source to the Audio In con-
nector on the projector.
To adjust the volume, use the buttons on the keypad or remote.
To adjust the balance or turn off the projector ’s chime, use the Audio menu 
(see page 33).
To mute the sound, press the Mute button.Troubleshooting audioIf there is no sound, check the following:
 Make sure the audio cable is connected.
 Make sure mute isn’t active. 
 Make sure the volume is turned up enough. Press the Vo l u m e button 
on the keypad or remote.
 Adjust the audio source.
 If playing a video, make sure the playback has not been paused.Connecting external speakersThe projector can be attached to external speakers that have their own 
power source by plugging a speaker cable into the projector ’s Audio Out 
connector. 
connect audio cable
computer 2
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adjust volume
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external speakers
speaker
cable 
						

							27
Optimizing computer imagesAfter your computer is connected properly and the computer ’s image is on 
the screen, you can optimize the image using the onscreen menus. For gen-
eral information on using the menus, see page 29.
 Adjust the Keystone, Contrast, or Brightness in the Picture menu. 
 Change the Aspect Ratio. See page 30 for details.
 Adjust the Color Temperature in the Advanced menu.
 Adjust the Phase, Tracking, or Horizontal or Vertical position in the 
Advanced menu.
 Once you have optimized the image for a particular source, you can 
save the settings using Presets. This allows you to quickly recall these 
settings later. See page 31.
 Adjust the Room Lighting. Select Dark if you are in a dark room, Light 
if in a bright room (page 31). 
Presentation featuresSeveral features are provided to make giving presentation easier. The fol-
lowing is an overview, details are found in the menu section on page 29.
The remote’s Effect button allows you to assign various features to the 
key. The default effect is Freeze. You can select from Blank, Mute, 
Aspect Ratio, Source, Auto Image, Freeze, Zoom, About, PiP, and Mask. 
See page 35 for details. 
 The Freeze effect allows you to freeze the displayed image. This is use-
ful if you want to make changes on your computer without your audi-
ence seeing them. 
The Blank button on the remote allows you to display a blank screen 
instead of the active source. See page 34.
 The PiP effect lets you show a video source in a smaller window on top 
of the computer image. See page 35.
 The Startup Logo menu option lets you change the default startup 
screen to a black, white, or blue screen. See page 34.
 Two menu options, Power Save and Screen Save, are provided to auto-
matically shut down the projector after several minutes of inactivity or 
display a blank screen. This helps preserve lamp life. See page 33. 
						

							28
Optimizing video imagesAfter the video device is connected properly and the image is on the screen, 
you can optimize the image using the onscreen menus. For general informa-
tion on using the menus, see page 29.
 Adjust the Keystone, Contrast, Brightness, Color, or Tint in the Picture menu. See page 30. 
 Change the Aspect ratio. Aspect ratio is the ratio of the image width to  image height. TV screens are usually 1.33:1, also known as 4:3. HDTV 
and most DVDs are 1.78:1, or 16:9. Choose the option that best fits your 
input source. See page 30.
 Select a Sharpness setting. See page 32.
 Adjust the Color Temperature. Select a listed value, or select User and  individually adjust the intensity of the red, green, and blue color. See 
page 32.
 Adjust the Room Lighting. Select Dark if you are in a dark room, Light  if in a bright room (page 31). 
Customizing the projectorYou can customize the projector for your specific setup and needs. See 
page 33 to page 37 for details on these features.
 For rear projection, turn Rear mode on in the  Settings>System menu.
 For ceiling mounted projection, turn Ceiling mode on in the  Set-
tings>System  menu. 
 Turn on Automatic Vertical Keystone adjustments.
 Specify which source the projector checks first for active video during  power-up. 
 Specify the function of the Effect Key on the remote. 
 Turn the projector ’s display messages on and off.
 Turn on power saving features. 
 Specify blank screen colors and startup logos.
 Specify the menu language.
   Pro je ct w ir e less ly  w it h  w ir e le ss  adap te r. S ee pa ge 6 .
 Manage your projector via ProjectorNet software. See page 8 for more  information.
 Control your projector using RS232 commands. See page 8. 
						

							29
Using the menusTo open the menus, press the Menu button on the keypad or remote. (The 
menus automatically close after 60 seconds if no buttons are pressed.) The 
Main menu appears. Use the arrow buttons to move up and down to high-
light the desired submenu, then press the Select button. 
To change a menu setting, highlight it, press Select, then use the up and 
down arrow buttons to adjust the value, select an option using radio but-
tons, or turn the feature on or off using check boxes. Press Select to confirm 
your changes. Use the arrows to navigate to another setting. When your 
adjustments are complete, navigate to Exit, then press Select to go to the 
previous menu; press the Menu button at any time to close the menus. 
Dots appear before the menu name. The number of dots indicate the menu’s 
level, ranging from one (the Main menu) to four (the most nested menus). 
The menus are grouped by usage:
 The Picture menu provides image adjustments.
 The Settings menu provides set-up type adjustments that are not 
changed often.
 The About menu provides a read-only display of information about the 
projector and source. 
Certain menu items may be grayed out until a particular source is con-
nected. For example, Sharpness is only available for video sources and will 
be hidden when a computer source is active. Other menu items may be 
grayed out when they are not available. For example, Brightness is grayed 
out until an image is active.
Keypad navigation 
buttons
Main menuMenu
button
Dot
 
 
Picture
Settings
menuDotsmenu
About menu