Acer K11 User Manual

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EnglishHow to optimize image size and distance
Consult the table below to find the optimal image sizes achievable when the 
projector is positioned at a desired distance from the screen.  Example: If the 
projector is 3 m from the screen, good image quality is possible for image sizes 
71.
¥
Note: Remind as below figure, the space of 118 cm height is 
required when located at 3m distance.
screen size
71screen size
711
AC
3m
Desired Distance
Height: 
118cm 
						

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EnglishDesired
Distance (m)
Screen size
Top
(Min zoom)
Diagonal (inch)
W (cm) x H (cm) From base 
to top of 
image (cm)

0.64 15 31 x 22 25
1.2 28 59 x 41 47
2.0 47 98 x 69 79
2.457118 x 8295
2.6 60 125 x 87 101
3.0 71 147 x 103 118
3.4 80 167 x 117 134
Zoom Ratio: 1.0x 
						

							13
EnglishUser Controls
Installation menu
The installation menu provides an onscreen display (OSD) for projector 
installation and maintenance. Use the OSD only when the message No signal 
input is displayed on the screen. 
The menu options include settings and adjustments for screen size and distance, 
focus, keystone correction and more .
1 Turn on the projector by pressing Power button on the control pad.
2 Press the MENU button on the control pad to launch the OSD for 
projector installation and maintenance.
 
3 The background pattern acts as a guide to adjusting the calibration and 
alignment settings, such as screen size and distance, focus and more .
4 The Installation menu includes the following options:
•Projection method
•Projection location
•Menu location
•Keystone settings
•Language settings
•Reset to factory default function
Use the up and down arrow keys to select an option, the left and right 
arrow keys to adjust selected option settings, and the right arrow key to 
enter a submenu for feature setting. The new settings will be saved 
automatically upon exiting the menu.
5 Push the menu button anytime to exit the menu and return to the Acer 
welcome screen.
 
 
  
						

							14
English
Acer Empowering Technology
Empowering  KeyAcer Empowering Key provide three 
Acer unique functions, they are Acer 
eView Management, Acer eTimer 
Management and Acer ePower 
Management respectively. Press   
key for more than one second to launch 
the Onscreen display main menu to 
modify its function.
Acer eView ManagementPress   to launch Acer eView 
Management  submenu.
Acer eView Management is for 
display mode selection. Please refer to 
Onscreen Display Menus section for 
more detail.
Acer eTimer ManagementPress   to launch Acer eTimer 
Management submenu.
Acer eTimer Management provides 
the reminding function for 
presentation time control. Please refer 
to Onscreen Display Menus section for 
more detail.
Acer ePower ManagementPress   to launch Acer ePower 
Management.
Acer ePower Management provides 
user one shortcut to save lamp and 
projector life. Please refer to Onscreen 
Display section for more detail. 
						

							15
EnglishOnscreen Display (OSD) Menus
The projector has multilingual OSD that allow you to make image adjustments 
and change a variety of settings.
Using the OSD menus
•To open the OSD menu, press MENU on the remote control.
•When the OSD is displayed, use the   keys to select any item in the 
main menu. After selecting the desired main menu item, press   to enter 
submenu for feature setting.
•Use the   keys to select the desired item and adjust the settings by 
using the   keys.
•Select the next item to be adjusted in the submenu and adjust as described 
above.
•Press MENU on the remote control, the screen will return to the main 
menu.
•To exit OSD, press MENU on the remote control again. The OSD menu 
will close and the projector will automatically save the new settings.
Setting Main menu
Sub menu 
						

							16
English
Color
Display ModeThere are many factory presets optimized for various types of 
images.
•Bright: For brightness optimization.
•Standard: For common environment.
•Video: For playing video in a bright environment.
•Picture: For graphic picture.
•Game: For game content.
•User: Memorize user’s settings.
Wall colorUse this function to choose a proper color according to the wall. 
There are several choices, including white, light yellow, light blue, 
pink, dark green. It will compensate the color deviation due to the 
wall color to show the correct image tone.
BrightnessAdjust the brightness of the image.
•Press   to darken image.
•Press   to lighten the image.
ContrastContrast controls the difference between the lightest and 
darkest parts of the picture. Adjusting the contrast changes the 
amount of black and white in the image.
•Press   to decrease the contrast.
•Press   to increase the contrast.
Color 
TemperatureAdjust the color temperature. At higher color temperatures, the 
screen looks colder; at lower color temperatures, the screen looks 
warmer.
DegammaEffects the representation of dark scenery. With greater gamma 
value, dark scenery will look brighter.
SaturationAdjusts a video image from black and white to fully saturated 
color.
•Press   to decrease the amount of color in the image.
•Press   to increase the amount of color in the image. 
						

							17
English
Note: Saturation and Tint functions are not supported under computer 
mode or HDMI mode.
Image
TintAdjusts the color balance of red and green.
•Press   to increase the amount of green in the image.
•Press   to increase the amount of red in the image.
Projection mode
•Front: The factory default setting.
•Rear: Reverses the image so you can project from behind a 
translucent screen.
Projection Location
•Auto: Automatically adjusts projection location of image.
•Desktop
•Ceiling: Turns the image upside down for ceiling-mounted 
projection. 
						

							18
English
Note: H. Position, V. Position, Frequency and Tracking functions 
are not supported under DVI or Video mode.
Note: Sharpness functions is not supported under DVI and Computer 
mode. Aspect Ratio Use this function to choose your desired aspect ratio.
•Auto: Keep the image with original width-higth ratio and maxi 
mize the image to fit native horizontal or vertical pixels.
•4:3: The image will be scaled to fit the screen and displayed using 
a 4:3 ratio.
•16:9: The  image will be scaled to fit the width of the screen and 
the height adjusted to display the image using a 16:9 ratio.
•Full: Resize image to fit full screen by width (1280 pixels) and 
height (800 pixels).
Auto Keystone Automatically adjusts vertical image.
Manual Keystone Adjust image distortion caused by tilting projection. (±40 degrees)
 The Manual Keystone funcion is unavailable under Auto 
Keystone setting to On.
H. Position 
(Horizontal 
position)
•Press   to move the image left.
•Press   to to move the image right.
V. Position 
(Vertical position)
•Press   to move the image down.
•Press   to move the image up.
Frequency Frequency changes the projectors refresh rate to match the 
frequency of your computer’s graphics card. If you can see a vertical 
flickering bar in the projected image, use this function to make the 
necessary adjustments.
Tracking Synchronizes the signal timing of the projector with the graphics card. 
If you experience an unstable or flickering image, use this function to 
correct it.
Sharpeness Adjusts the sharpness of the image.
•Press   to decrease the sharpness.
•Press   to increase the sharpness. 
						

							19
EnglishSetting
Management
Menu Location Choose the menu location on the display screen.
Source Lock When source lock is turned off, the projector will search for other signals if the current input signal is lost. When source lock is 
turned on, it will lock the current source channel unless you 
press Source button on the remote control for the next channel.
Closed Caption Selects a preferred closed captioning mode from CC1, CC2, CC3,  CC4, (CC1 displays captions in the primary language in your area). 
Select Off to turn off the captioning feature. This function is only 
available when a composite video or S-Video input signal is 
selected and its system format is NTSC.
 Set your screen aspect ratio to 4:3. This function is not 
available when the aspect ratio is 16:9 or Auto .
Reset Press the   button and choose Yes to return the  parameters 
on all menus to the factory default settings.
High Altitutde Choose On to turn on High Altitude mode. Operate the fans at 
full speed continuously to allow for proper high altitude cooling of 
the projector.
Auto Shutdown The projector will automatically shutdown when there is no signal  input after the allocated time. (in minutes)
LED Calibration Press   after choosing Yes, please wait for 10 seconds to finish 
the white color fine tune process. It helps to adjust LED color 
performance. 
						

							20
English
Audio
Timer
Volume•Press   to decrease the volume.
•Press   to increase the volume.
Mute
•Choose On to mute the volume. 
•Choose Off to restore the volume. 
Power On/Off Volume
•Select this function to adjust the notification volume when 
turning the projector on/off.
Alarm Volume
•Select this function to adjust the volume of any warning 
notifications.
Timer Location
•Choose the location of the timer on the screen.
Timer Start
•Press   to start or stop the timer.
Timer Period
•Press   or   to adjust the timer period.
Timer Display
•Press   or   to which timer mode to display on the 
screen.
Timer Volume
•Select this function to adjust the notification volume when 
the timer function is enabled and time is up.