Dukane Projector 8421A User Manual

							20
Entering the password recall procedure
1. Press and hold AUTO on the remote control 
for 3 seconds. The proj ector will display a 
coded number on the screen.
2. Write down the number and turn off your  projector.
3. Seek help from the local dealer to decode the  number. You may be required to provide 
proof of purchase documentation to verify 
that you are an authorized user of the 
projector.
Changing the password
1. Open the OSD menu and go to the  SYSTEM SETTING: Advanced > Security 
Settings >  Change Password  menu.
2. Press  MODE/ENTER on the projector or remote control. The message  INPUT 
CURRENT PASSWORD  is displayed.
3. Enter the old password.
• If the password is correct, another  message INPUT NEW PASSWORD is 
displayed.
• If the password is incorrect, the password  error message is displayed lasting for 
three seconds, and the message  INPUT CURRENT PASSWORD  is 
displayed for your retry. You can press  MENU on the projector or  MENU/
EXIT on the remote control to cancel the change or try another password.
4. Enter a new password.
5. Confirm the new password by re-entering the new password.
6. You have successfully assigned a new password to the projector. Remember to enter  the new password next time the projector is started.
7. To leave the OSD menu, press  MENU on the projector or  MENU/EXIT on the 
remote control .
The digits being input will be displayed as asterisks on-screen. Write your selected password 
down here in this user manual in advance or right after the password is entered so that it is 
available to you should you ever forget it.
Password: __ __ __ __ __ __
Keep this user manual in a safe place.
Please write down the recall code, 
and contact the dealer.
Recall Code: XXX  XXX  XXX  XXX
RECALL PASSWORD
Exit
MENU 
						

							21
Disabling the password function
To disable password protection, go back to the SYSTEM SETTING: Advanced > 
Security Settings > Power on Lock  menu after opening the OSD menu system. Select  Off 
by pressing  / . The message  INPUT PASSWORD  is displayed. Enter the current 
password. 
• If the password is correct, the OSD menu returns to the  Security Settings page 
with  Off shown in the row of  Power on Lock. You will not have to enter the 
password next time you turn on the projector.
• If the password is incorrect, the password  error message is displayed lasting for 
three seconds, and the message  INPUT PASSWORD is displayed for your 
retry. You can press  MENU on the projector or  MENU/EXIT on the remote 
control to cancel the change or try another password.
Though the password function is disabled, you need to keep the old password in hand should 
you ever need to re-activate the password function by entering the old password.
Switching input signal
The projector can be connected to multiple de vices at the same time. However, it can only 
display one full screen at a time. 
Be sure the  Quick Auto Search  function in the SOURCE menu is  On if you want the 
projector to automatically search for the signals.
You can also manually select the desired signal  by pressing one of the source selection keys 
on the remote control, or cycle through the avai lable input signals. Once you have done this, 
the Quick Auto Search  function will be turned off automatically.
1. Press  SOURCE on the projector or remote cont rol. A source selection bar is 
displayed. 
2. Press  /  until your desired si gnal is selected and press MODE/ENTER on the 
projector or remote control.
Once detected, the selected source informat ion will be displayed on the screen for 
seconds. If there are multiple devices conn ected to the projector, repeat steps 1-2 to 
search for another signal.
• The brightness level of the projected image will change accordingly when you switch  between different input signals. Data (graph ic) computer presentations using mostly 
static images are generally brighter than Video using mostly moving images (movies).
• The input signal type effects the optio ns available for the Preset Mode. See Selecting a 
preset mode on page 26  for details.
• Please see  Projector specifications on page 48  for the native display resolution of this 
projector. For best display picture results,  you should select and use an input signal 
which outputs at this resolution. Any other resolutions will be scaled by the projector 
depending upon the aspect ratio setting, which may cause some image distortion or loss 
of picture clarity. See  Selecting the aspect ratio on page 24  for details. 
						

							22
Adjusting the projected image
Adjusting the projection angle
The projector is equipped with two adjuster feet. 
They change the image height and vertical 
projection angle. Screw the  adjuster feet to fine 
tune the angle until the image is positioned 
where you want it.
If the projector is not placed on a flat surface or 
the screen and the projector are not 
perpendicular to each other, the projected image 
becomes trapezoidal. To correct this situation, 
see  Correcting keystone on page 23  for 
details.
CAUTION
Do not look into the lens while the lamp is on. The strong light from the lamp may cause 
damage to your eyes.
Be careful when you screw the front adjuster foot as it is close to the exhaust vent where hot 
air comes from.
Auto-adjusting the image
In some cases, you may need to optimize  the picture quality. To do this, press AUTO on the 
remote control or activate the  Auto Adjustment function in the SOURCE menu. Within 3 
seconds, the built-in Intelligent Auto Adjustme nt function will re-adjust the values of 
Frequency and Clock to provi de the best picture quality.
The current source information will be displayed in  the upper left corner of the screen for 3 
seconds.
• The screen will be blank while AUTO is functioning.
• This function is only available when computer signal (analog RGB) is selected.
Fine-tuning the image clarity
1. Adjust the projected image to 
the size that you need using the 
zoom ring.
2. If necessary, sharpen the image  by rotating the focus ring.
FOCUS ring
ZOOM  ring 
						

							23
Correcting keystone
Keystoning refers to the situation where the projected image is noticeably wider at either the 
top or bottom. It occurs wh en the projector is not perpendicular to the screen.
To correct this, besides adjust ing the height of the projector, you will need to manually 
correct it following one of these steps.
• Press  /  on the projector or remote control 
to display the Keystone correction page. Press  to correct keystoning at the top of the 
image. Press   to correct keystoning at the 
bottom of the image.
• Using the OSD menu
1. Press  MENU on the projector or  MENU/EXIT on the remote control and then press 
/  until the 
DISPLAY menu is highlighted.
2. Press   to highlight  Keystone and press  MODE/ENTER  on the projector or remote 
control. The  Keystone correction page is displayed.
3. Press   to correct keystoning at the  top of the image or press   to correct 
keystoning at the bottom of the image.
Magnifying and searching for details
If you need to find the details on the proj ected picture, magnify the picture. Use the 
direction arrow keys fo r navigating the picture.
• Using the remote control
1. Press  Magnify + /Magnify  - on the remote control to display the Zoom bar.
2. Press  Magnify + on the remote control or   on the projector repeatedly to magnify 
the picture to a desired size.
3. To navigate the picture, pre ss the directional arrows ( , , , ).
4. To reduce size of the picture, press  Magnify - on the remote control, or   on the 
projector. You can also restore the pictur e to its original size by pressing the AUTO 
button on the remote control.
• Using the OSD menu
1. Press  MENU on the projector or  MENU/EXIT on the remote control and then press 
/  until the  DISPLAY menu is highlighted.
2. Press
  to highlight  Magnify and press  MODE/ENTER on the projector remote 
control. The Zoom bar is displayed.
3. Repeat steps 2-4 in the section of  Using the remote control above.
The picture can only be navigated after the picture is magnified. You can further magnify the 
picture while searching for details.
Press/Press / 
						

							24
Selecting the aspect ratio
The aspect ratio is the ratio of the image width to the image height. Most analog TV and 
computers are in 4:3 ratio,  and digital TV and DVDs are usually in 16:9 ratio.
With the advent of digital signal processing,  digital display devices like this projector can 
dynamically stretch and scale the image output to  a different aspect than that of the image 
input signal.
To change the projected image ratio (n o matter what aspect the source is):
1. Press  MENU on the projector or  MENU/EXIT on the remote control and then press 
/  until the  DISPLAY menu is highlighted.
2. Press
  to highlight  Aspect Ratio .
3. Press  /  to select an aspect ratio to su it the format of the video signal and your 
display requirements. 
						

							25
About the aspect ratio
In the pictures below, the black portions are inactive areas and the white portions are active 
areas. OSD menus can be displayed on those unused black areas.
1.Auto: Scales an image proportionally to fit the 
projectors native reso lution in its horizontal 
width. This is suitable for the incoming image 
which is neither in 4:3 nor 16:9 and you want to 
make most use of the screen without altering the 
images aspect ratio.
2.
Real : The image is projected as its original 
resolution, and resized to fit within the 
display area. For input signals with lower 
resolutions, the projected image will display 
smaller than if resized to full screen. You 
could adjust the zoom  setting or move the 
projector towards the screen to increase the 
image size if necessary.  You may also need to 
refocus the projector after making these 
adjustments.
3. 4:3: Scales an image so that it is displayed in the 
center of the screen with a 4:3 aspect ratio. This 
is most suitable for 4:3 images like computer 
monitors, standard definition TV and 4:3 aspect 
DVD movies, as it displays  them without aspect 
alteration.
4. 16:9: Scales an image so that it is displayed in 
the center of the screen with a 16:9 aspect ratio. 
This is most suitable for images which are 
already in a 16:9 aspect , like high definition TV, 
as it displays them wi thout aspect alteration.
16:10 picture
15:9 picture
4:3 picture
16:9 picture
4:3 picture
16:9 picture 
						

							26
Optimizing the image
Selecting a preset mode
The projector is preset with several predefined preset modes so that you can choose one to 
suit your operating environment  and input signal picture type.
To select an operation mode that suits your n eed, you can follow one of the following steps.
• Press  MODE/ENTER on the projector or remote control repeatedly until your desired 
mode is selected.
•Go to the  PICTURE > Preset Mode  menu and press  /  to select a desired mode.
The preset modes available for differen t types of signals are listed below.
1. Bright mode : Maximizes the brightness of the project ed image. This mode is suitable 
for environments where extra- high brightness is required, such as using the projector 
in well lit rooms.
2. Presentation mode : Is designed for presentations under daylight environment to 
match computer and notebook computer coloring.
3. sRGB mode : Maximizes the purity of RGB colors  to provide true-to-life images 
regardless of brightness setting. It is most  suitable for viewing photos taken with an 
sRGB compatible and properly calibrated  camera, and for viewing computer graphic 
and drawing applications.
4. Cinema mode : Is appropriate for playing colorfu l movies, video clips from digital 
cameras or DVs through the computer input  for best viewing in a blackened (little 
light) environment.
5. Game mode : Suitable for all types of entert ainment media, including gaming and 
movies.
6. User mode : Recalls the settings customized ba sed on the current available preset 
modes. See Setting the User mode on page 26  for details.
Setting the User mode
1. Press MENU on the projector or  MENU/EXIT on the remote control to open the On-
Screen Display (OSD) menu.
2. Go to the  PICTURE > Preset Mode  menu.
3. Press  /  to select  User. The adjustments you make in the  Brightness, Contrast, 
Color , Tint , Sharpness,  Brilliant Color , Color Temperature  and 3D Color 
Management will automatically be saved as the User mode.
Fine-tuning the image qu ality in user modes
According to the detected signal type, there  are some user-definable functions available 
when  User mode is selected. You can make adjustments to these functions based on your 
needs.
Adjusting Brightness
Highlight the  PICTURE > Brightness  menu and press  / .
The higher the value, the br ighter the image. And the 
lower the setting, the darker the image. Adjust this 
control so the black areas of the image appear just as 
black and that detail in  the dark areas is visible.
+50+0 +100 
						

							27
Adjusting 
Contrast
Highlight the  PICTURE > Contrast  menu and press  / .
The higher the value, the great er the contrast. Use this 
to set the peak white level after you have previously 
adjusted the  Brightness setting to suit your selected 
input and viewing environment.
Adjusting Color
Highlight the  PICTURE > Color  menu and press  / .
Lower setting produces less saturated colors. If  the setting is too high, colors on the image 
will be overpowering, which makes the image unrealistic.
This function is only available when a Video,  S-Video or Component Video signal is selected.
Adjusting Tint
Highlight the PICTURE > Tint  menu and press  / .
The higher the value, the more reddish the pict ure becomes. The lower the value, the more 
greenish the picture becomes.
This function is only available when a Video, S-Video with NTSC signal is selected.
Adjusting Sharpness
Highlight the  PICTURE > Sharpness  menu and press  / .
The higher the value, the sharper the picture b ecomes. The lower the value, the softer the 
picture becomes.
This function is only available when a Video,  S-Video or Component Video signal is selected.
Adjusting Brilliant Color
Highlight the PICTURE > Brilliant Color  menu and press  / .
This feature utilizes a new color-processing algorithm and system level enhancements to 
enable higher brightness while providing truer,  more vibrant colors in the projected picture. 
It enables a greater than 50% brightness incr ease in mid-tone images, which are common in 
video and natural scenes, so the projector reprodu ces images in realistic and true colors. If 
you prefer images with that quality, select  On. If you don’t need it, select  Off.
When  Off is selected, the  Color Temperature  and 3D Color Management  functions are 
not available.
Selecting a Color Temperature
Highlight the  PICTURE > Color Temperature  menu and press  / .
The options available for color temperature*  settings vary according to the signal type 
selected.
1. Cool: Makes images appear bluish white.
2. Normal:  Maintains normal colorings for white.
3. Warm: Makes images appear reddish white.
*About color temperatures:
0-50 +50 
						

							28
There are many different shades that are considered to be white for various purposes. One 
of the common methods of representing white color is known as the “color temperature”. A 
white color with a low color temperature appear s to be reddish white. A white color with a 
high color temperature appears to have more blue in it.
Color Management
Only in permanent installations with controlled  lighting levels such as boardrooms, lecture 
theaters, or home theaters, should color management be considered. Color management 
provides fine color control adjustment to allo w for more accurate color reproduction, should 
you require it.
If you have purchased a test disc which contains  various color test patterns and can be used 
to test the color presentation on monitors, TV s, projectors, etc., you can project any image 
from the disc on the screen and enter the  3D Color Management menu to make 
adjustments.
To adjust the settings:
1. Go to the  DISPLAY menu and highlight  3D Color Management .
2. Press  MODE/ENTER on the projector or remote control  and the  3D Color 
Management page is displayed.
3. Highlight  Primary Color and press  /  to select a color from among Red, Yellow, 
Green, Cyan, Blue, or Magenta.
4. Press   to highlight  Hue and press  /  to select its range. Increase in the range will 
include colors consisted of more pr oportions of its two adjacent colors.
Please refer to the illustration to the right for 
how the colors relate to each other.
For example, if you select Red and set its 
range at 0, only pure red in the projected 
picture will be select ed. Increasing its range 
will include red close to yellow and red close 
to magenta.
5. Press  to highlight  Saturation and adjust 
its values to your preference by pressing  / . Every adjustment made will reflect to the 
image immediately.
For example, if you select Red and set its  value at 0, only the saturation of pure red 
will be affected.
Saturation is the amount of that color in a video picture. Lower settings produce less 
saturated colors; a setting of “0” removes that  color from the image entirely. If the saturation 
is too high, that color will be overpowering and unrealistic.
6. Press   to highlight  Gain and adjust its values to your preference by pressing  / . 
The contrast level of the primary color you  select will be affected. Every adjustment 
made will reflect to the image immediately. 
7. Repeat steps 3 to 6 for other color adjustments.
8. Make sure you have made all of the desired adjustments.
9. Press  MENU on the projector or  MENU/EXIT on the remote control to exit and save 
the settings.
RED
BLUEGREEN
Yellow
Cyan
Magenta 
						

							29
Setting the presentation timer
This function is only available when an input signal is selected and active.
Presentation timer can indicate the presentation  time on the screen to help you achieve 
better time management when giving presenta tions. Follow these steps to utilize this 
function:
1. Press  TIMER SET UP  on the remote control to access the  Presentation Timer menu 
or go to the  SYSTEM SETTING: Basic > Presentation Timer  menu and press 
MODE/ENTER to display the  Presentation Timer page.
2. Highlight  Timer Period and decide the time period by pressing  / . The length of 
time can be set from 1 to 5 minutes in 1- minute increments and 5 to 240 minutes in 5-
minute increments.
If the timer is already on, the timer will restart whenever the Timer Period is reset.
3. Press  to highlight  Timer Display and choose if you want the timer to show up on 
the screen by pressing
 /.
4. Press  to highlight  Timer Position and set the timer position by pressing  /.
5. Press  to highlight Timer Counting Direction  and select your desired counting 
direction by pressing  / .
6. Press  to highlight  Sound Reminder and decide if you want to activate sound 
reminder by pressing  / . If you select  On, a double beep sound will be heard at the 
last 30 seconds of counting down/up, and a tr iple beep sound will be produced when 
the timer is up.
7. To activate the presentation timer,  press   and press  /  to highlight On and press 
MODE/ENTER.
8. A confirmation message displays. Highlight  Ye s and press  MODE/ENTER on the 
projector or remote control to c onfirm. You will see the message “ Timer is On” 
displaying on the screen. The timer starts counting when the timer is on.
SelectionDescription
Always Displays the timer on screen throughout the presentation 
time.
1 min/2 min/3 min  Displays the timer  on screen in the last 1/2/3 minute(s).
Never Hides the timer throughout the presentation time.
Top-Left Bottom-Left Top-Right Bottom-Right
SelectionDescription
Count Up Increases from 0 to the preset time.
Count Down Decreases from the preset time to 0.