Epson Powerlite S4 Users Guide

11Part Names and Functions 
Remote Control
[A/V Mute] button (see page 19) [E-Zoom] button ( ) ( ) (see page 21
)
[Enter] and [Esc] button (see page 22)
[Auto] button (see p.12)[Menu] button (see page 31
) [Power] button (see Quick Setup sheet)
[Color Mode] button (see page 14
) [ ] button (see page 22
)
[Freeze] button (see page 20) [Page down] [Page up] buttons (see page 22
)
[Computer] button (see page 18
)
[S-Video] button (see page 18
)
[Video] button (see page 18
)
[Resize] button (see page 20
)...

12Adjusting the Image Quality 
Adjusting and Changing the Image
Adjusting the Image Quality
Adjusting Computer Images and RGB Video Images
Automatic Setup
Automatic setup detects analog RGB signals coming from a connected 
computer, and automatically adjusts these signals so that the optimum 
images can be obtained.
Automatic setup involves adjustment of Tracking, Position, and Sync 
(synchronization).
If Auto Setup in the Signal menu is set to Off, automatic setup is not 
carried out. In this case,...

13Adjusting the Image Quality 
2Adjust the tracking until the vertical stripes disappear from the 
image. 
The tracking value increases or decreases each time a button is 
pressed.
3Press the [Menu] button to exit the configuration menu.
Adjusting the Sync
If flickering, fuzziness or interference appear in 
computer or RGB video images, and this cannot be 
fixed using automatic setup, you will need to adjust 
the Sync (synchronization) manually using the 
following procedure.
1Select Signal from the...

14Adjusting the Image Quality 
The sync value increases or decreases each time a button is pressed.
3Press the [Menu] button to exit the configuration menu.
Selecting the Projection Quality (Color Mode)
The following seven preset color modes are 
available for use depending on the characteristics of 
the images that are being projected. You can easily 
obtain the optimum image quality simply by 
selecting the color mode that corresponds to the 
projected images. The brightness of the images will 
vary...

15Adjusting the Image Quality 
Each time you press the button, the color modes change in the following 
order.
The current setting appears in the top-right corner of the screen each time the 
color mode is changed. While the color mode name is displayed on the 
screen, it does not change to the next color mode setting unless you press the 
button.
p
The color mode can also be set using the Color Mode command in the 
Image menu. See page 32
. 

16Adjusting the Projection Position (Image Shift) 
Adjusting the Projection Position (Image Shift)
When you cannot setup this projector directly in front of the screen, the 
projection position can be finely tuned without moving this projector. 
1Using the button on the projector, perform zoom adjustment or 
keystone correction. See the Quick Setup sheet.
The Image Shift adjustment screen is displayed after you finish 
making adjustments.
2Adjust projection position.3Press the [Esc] button to close the...

17Adjusting the Volume 
Adjusting the Volume
The volume of the projectors built-in speaker can be adjusted as follows.
When the button is pressed to the [ ] side, the volume increases, and when 
it is pressed to the [ ] side, the volume decreases. 
The volume gauge appears on the screen when the volume is being adjusted. 
Selecting the Image Source
The image source is the projector port to which your video equipment is 
connected. You can select the image source automatically, using Source 
Search as...

18Selecting the Image Source 
3The projector searches for an active source and displays the 
image. 
Unused sources are skipped, as shown below. When two or more 
pieces of equipment are connected, press the [Source Search] button 
repeatedly to select the desired source. Selecting the Source from the Remote Control
You can use the remote control to select a specific image source.
p
You see this screen if no picture signal is available. You can use the screen 
to choose the input source. 
Computer...

19Functions for Enhancing Projection 
Additional Projector Functions
This chapter explains functions used when giving presentations and for using 
the projector’s security functions.
Functions for Enhancing Projection
Muting the Image and Sound (A/V Mute)
For example, this can be used if you want to pause the projection for a 
moment and focus the audience’s attention on what you are saying. Or if you 
are making a computer presentation and you do not want to show details, 
such as selecting different...

20Functions for Enhancing Projection 
Freezing the Image
The source image continues to project even when the screen is frozen. You 
can still perform operations such as changing files, without projecting any 
images.
You can turn this function on or off by pressing the [Freeze] button.
Changing the Aspect Ratio
This function changes the aspect ratio of images from 4:3 to 16:9 when 
component video, S-video, or composite video images are being projected. 
Images which have been recorded in digital video...