Epson Projector Emp 820 User Manual

39
Turning Off the Projector
Follow the procedure below to turn off the power of the projector.
Procedure
1Turn off the power for the signal sources that are connected to 
the projector.
Check that the power for all connected components has been tuned off.
2Press the [Power] button on either 
the remote control or the 
projectors control panel.
The following confirmation message will 
appear.
If you do not want to turn off the power, press any button except the 
[Power] button.
If you do not press any...

40
5Unplug the power cord from the electrical outlet.
Caution :
Do not disconnect the power cord from the outlet while the operation indicator is still 
flashing orange. If you disconnect the power cord while the indicator is still flashing, it 
may result in errors in projector operation and reduce the lamp unit operating life.
6Set the R/C switch on the remote 
control to the OFF position.
Tip :
If you leave the R/C switch at the ON position, the 
remote control will continue to consume battery...

41
Adjusting the Screen Image
You can adjust the screen image in order to obtain the best possible picture.
Adjusting the Image Size
The size of the projected image is basically determined by the distance from the 
projector to the screen. (P.18)
The following procedures explain how to adjust the screen image once the 
projector itself has been set up.
Tip :
The E-Zoom function lets you enlarge parts of the image. (P.56)
Procedure
Turn the zoom ring on the projector to 
adjust the image.
The image can be...

42
Adjusting the Image Angle
You can change the projection angle for the projector. The projector should be 
as perpendicular to the screen as possible.
You can extend or retract the front adjustable foot to adjust the projection angle 
within a maximum range of 12°.
Procedure
While pressing the foot adjust button, 
lift up the front of the projector so that 
the front adjustable foot can extend.
Extend the front adjustable foot until the 
desired angle is obtained, and then release the 
foot adjust...

43
If the projector cannot be set up so that it is perpendicular to the screen, you can 
use the keystone correction function which is described on the following page 
to adjust the projected images if the angle of the projector is within a range of 
approximately 30° vertically or approximately 10° horizontally from the 
perpendicular.
The values given here are for when the image is at the smallest zoom setting 
(telephoto). The maximum angles  will be smaller if the zoom setting has been 
increased in...

44
Correcting Keystone Distortion
In some cases it may not be possible to set up the projector so that the setting 
angle is perpendicular to the position of the screen. In such cases, a type of 
distortion known as keystone distortion may appear in the projected images. 
If keystone distortion occurs, you can correct it using the [Keystone] buttons on 
the projectors control panel.
Correcting vertical keystone distortion
Correcting horizontal keystone distortion
Sync+
Tracking - Tracking +
Sync-Menu...

45
Tip :
 When keystone correction is carried out, the projected image will become smaller.
 Procedure to follow if using both horizontal and vertical keystone correction:
1. With the front adjustable foot retracted, set the projector so that it is fully horizontal.
2. Extend the front adjustable foot to adjust the angle as necessary.
3. Adjust the vertical keystone distortion until both sides of the picture are vertical.
4. Adjust the horizontal keystone distortion until the top and bottom edges of...

46
Adjusting the Image Quality
The quality of the screen images can be adjusted as follows.
Focusing the Screen Image
Procedure
Turn the focus ring to adjust the image 
focus.
Turn the focus ring of the projector until the 
projected images are in proper focus.
Tip :
 If the surface of the lens is dirty or misted over as a result of condensation, it may not 
be possible to adjust the focus correctly. If this happens, clean or de-mist the lens. 
(P.91)
 If the projector is positioned outside the normal...

47
Tip :
 The [Auto] button on the projectors control panel does not work while a menu or help 
screen is being displayed. To use the [Auto] button on the projectors control panel, you 
need to first exit the menu or help screen. Alternatively, you can use the [Auto] button 
on the remote control instead.
 If you use the remote control to activate the automatic adjustment function while the E-
Zoom, A/V Mute or Picture in Picture functions are in use, the functions being used will 
be canceled before...

48
If flickering, fuzziness or interference appear 
in images that are input from the computer, 
and this cannot be fixed using automatic 
adjustment, you will need to adjust the 
synchronization manually using the following 
projection.
Procedure
While holding down the [Shift] button 
on the projectors control panel, press 
the [Sync +] button.
The synchronization value will increase by 
one setting each time the [Sync +] button is 
pressed.
While holding down the [Shift] button 
on the projectors...