Acer Projector K138ST User Manual

11
EnglishTurning the projector off
1 To turn the projector off, press the power button. This message appears: 
Please press the power button again to complete the shutdown process. 
Press the power button again.
2 The LED power indicator will stop blinking and turn solid red to indicate 
standby mode after the projector is turned off.
3 It is now safe to unplug the power cord.
Warning indicators:
• Projector Overheated. Will automatically turn off soon.
This onscreen message indicates that the projector...

12
English
Adjusting the Projected Image
Adjusting the Height of Projected Image
The projector is equipped with tilt adjusting wheel for adjusting the height of 
image.
To raise/lower the image:
•Use Tilt adjusting wheel to fine-tune the display angle.
Tilt adjusting wheel 

13
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 1.50 m from the screen, good image quality is possible for image 
sizes 87.1.
Note: Remind as below figure, the space of 117 cm height is 
required when located at 1.50 m distance.
Desired 
Distance (m)
Screen size
Top
(Min zoom)
Diagonal (inch)
W (cm) x H (cm) From base to top of 
image...

14
English
User 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...

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...

16
English
Color
LumiSense+The light sensor of LumiSense+ technology can intelligently 
optimizes the brightness and color saturation of projected image 
based on actual ambient light. The feature greatly enhances dark 
detail visibility and color saturation.
•Off: For normal mode. (ambient light sensor is off)
•Auto Bright: Light sensor is on to automatically detect 
ambient light and optimize the brightness and color 
saturation of projected image.
•Dynamic Black:automatically optimize the display of...

17
English
Note: Saturation and Tint functions are not supported under computer 
mode or HDMI mode.
Image
Advanced Color TemperatureUse this function to choose CT1, CT2, CT3.
DegammaEffects the representation of dark scenery. With greater gamma 
value, dark scenery will look brighter.
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.
•...

18
English
Note: H. Position, V. Position, Frequency and Tracking functions 
are not supported under HDMI, DVI or Video mode.
Note: Sharpness functions is not supported under HDMI (RGB) or 
Computer mode.
Note: HDMI Color Range and HDMI Scan Info functions are only 
supported under HDMI mode.
Setting
H. Position•Press   to move the image left.
•Press   to move the image right.
V. Position
•Press   to move the image down.
•Press   to move the image up.
Frequency Frequency changes the projectors refresh...

19
EnglishManagement
Audio
ECO Mode Choose On to dim the projector LED brightness which will lower 
power consumption, extend the LED life and reduce noise. Choose 
Off to return normal mode.
High Altitude 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.
Turn Off Mode
•Instant Off: Shuts down the projector without fan cooling.
•Instant Resume: Resumes the system when the Power button 
is pressed again within...

20
English
3D
Note: It needs correct settings on graphic card 3D application program for 
correct 3D display.
Note: The SW players, such as Stereoscopic Player and DDD TriDef Media 
Player can support 3D format files. You can download these three players 
on web page below,
- Stereoscopic Player (Trial): http://www.3dtv.at/Downloads/Index_en.aspx
- DDD TriDef Media Player (Trial): 
http://www.tridef.com/download/TriDef-3-D-Experience-4.0.2.html
Note: 3D L/R Invert is only available when 3D is enabled....