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 button, the message will disappear automatically 
after seven seconds. (The power will not turn off at this time.)
3Press the [Power] button once 
more.
The lamp unit will turn off and the 
operation indicator will flash orange as the 
cool-down
period starts.
4Check that the cool-down is 
complete.
When cool-down is complete, the 
operation indicator lights orange.
The cool-down period lasts for 
approximately 2 minutes. (This varies 
depending on factors such as the ambient 
air temperature.)
Tip :
The projector buttons cannot be operated while the operation indicator is flashing 
orange. Wait until it lights steadily.
PowerA/V MuteFreeze
E-ZoomPowe r
Sync+
Tracking - Tracking +Menu EscHelp
Computer/YCbCrVideo
Ato
Source
Projector
Remote control
Operation indicator stops flashing 
and lights orange 
						

							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 
power.
Move the R/C switch to the OFF position when not 
using the remote control.
7Retract the front adjustable foot if it 
is extended.
Gently push down on the projector while 
pressing the foot adjust button.
8Attach the lens cover.
Attach the lens cover to the lens when not 
using the projector, in order to stop the 
lens from getting dusty or dirty.
Foot adjust button
Lens cover
Turning Off the Projector 
						

							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 enlarged in this way to 1.35 
times the normal size.
If you would like to enlarge the image further, 
move the projector further away from the 
screen. (P.18)
Tip :
For computer images, you can use the [Resize] 
button to switch between resized display and 
normal size display.
 Resized display (default): 
The images are processed so that they 
automatically fill the whole of the projection area, 
regardless of the resolution setting.
 Normal sized display (window display): 
The images are projected at the same resolution that they are input. The image size and 
the projection area may be different depending on the resolution.
Turn to Tele to 
reduce the size
Turn to Wide to 
increase the size
SourceVideoAuto
Preset
VolumeP in P
S-VideoResize
Volume A/V MuteResize
Sync-KeystoneShift
Projector
Remote control 
						

							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 button.
Tip :
 When the foot is adjusted, it may cause the size of the projected images to become 
distorted. Use the keystone correction function to adjust this distortion. (P.44)
 To retract the front adjustable foot, keep pressing the foot adjust button. The front 
adjustable foot will slowly retract inside the projector.
 If the projector is tilted horizontally, turn the rear adjustable foot to adjust the angle.
Seen from the side Seen from above
Foot adjust button
Adjusting the Screen Image 
						

							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 the wide angle direction. Furthermore, if the projector has been 
tilted both vertically and horizontally, the maximum adjustable angle will again 
be smaller than the maximum angle if the projector had been tilted in only one 
direction.
When tilted vertically
When tilted horizontally
30°30° Approx. 30° above Approx. 30° below
10° 10°Approx. 10° to the left Approx. 10° to the right 
						

							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 Esc
Keystone
Shift
AutoSync+
Tracking - Tracking +
Sync-
Menu Esc
Keystone
Shift
Auto
Projector Projector
Sync+
Tracking - Tracking +
Sync-
Menu Esc
Keystone
Shift
Auto
Sync+
Tracking - Tracking +
Sync-
Menu Esc
Keystone
Shift
Auto
Projector Projector
Adjusting the Screen Image 
						

							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 the 
picture are both horizontal.
 The keystone correction settings are memorized, so that if you change the position or 
angle of the projector, you may need to readjust the keystone correction settings.
To return a previous keystone correction to the initial setting, carry out the following 
operations.
To initalize vertical keystone correction: While holding down the [Sync +] button, 
press the [Sync -] button for 1 second or more.
To initalize horizontal keystone correction: While holding down the [Tracking +] 
button, press the [Tracking -] button for 1 second or more.
 If the images become uneven in appearance after keystone correction is carried out, 
decrease the Sharpness setting. (P.63)
 Keystone correction can also be carried out using the projector menu. (P.69)
 If you carry out both horizontal and vertical keystone correction, the correction range 
will become smaller than it would be if only one type of correction was carried out.
 If the value displayed in the gauge on the screen stops changing when horizontal or 
vertical keystone correction is being carried out, it indicates that the limit for 
horizontal or vertical keystone correction has been exceeded. Check that the projector 
has not been set up at an angle which exceeds the proper limit.
 If the horizontal (or vertical) keystone correction function is used at the same time that 
the E-Zoom, Effects or P in P function is being used, the keystone correction amount 
may change when the E-Zoom, Effects or P in P function is operated while the keystone 
correction amount is near the limit value.
 The limit value for keystone correction will vary depending on the video signal being 
input. 
						

							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 projecting range of 0.9 – 12.4 m (3.0 – 
40.7 ft.), it may not be possible to obtain the correct focus. If you have trouble 
obtaining the correct focus, check the projection distance.
Adjusting Computer Images
This procedure adjusts computer images to the optimum settings.
Automatic adjustment involves adjustment of the following three items: 
Tracking
, Display position and Synchronization (Sync).
Procedure
While an image is being projected from 
the computer, press the [Auto] button 
on either the remote control or the 
projectors control panel.
The screen will appear black while the 
adjustment is being made.
Automatic adjustment
SourceVideoAuto
Preset
VolumeP in P
S-VideoResize
Resize
Sync+
Tracking - Tracking +
Sync-Menu Esc
Keystone
Shift
Auto
Projector
Remote control 
						

							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 automatic adjustment is carried out. If the [Auto] button on the 
projector’s control panel is pressed, automatic adjustment will not be carried out if the 
E-Zoom or Picture in Picture function is being used.
 Automatic adjustment may not work properly with some types of signals which are 
output by computers. In such cases, you may need to adjust the tracking and 
synchronization manually.
If vertical stripes appear in the projected images, 
and this cannot be fixed using automatic 
adjustment. You will need to adjust the tracking 
manually using the following procedure.
Procedure
While holding down the [Shift] button 
on the projectors control panel, press 
the [Tracking +] button. 
The tracking value will increase by one setting 
each time the [Tracking +] button is pressed.
[While holding down the [Shift] button 
on the projectors control panel, press 
the [Tracking -] button.
The tracking value will decrease by one setting 
each time the [Tracking -] button is pressed.
Tip :
The image will flash when continuous tracking 
adjustment is carried out, but this is normal.
Adjusting the tracking
Resi e
Sync+
Tracking - Tracking +
Sync-
KeystoneShift
Auto
Projector
Ri
Sync+
Tracking - Tracking +
Sync-
KeystoneShift
Auto
Projector 
						

							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 control panel, press 
the [Sync -] button.
The synchronization value will decrease by 
one setting each time the [Sync -] button is 
pressed.
Tip :
 If you do not adjust the tracking first and then adjust the synchronization, it will not be 
possible to get the best adjustment results. Incorrect tracking adjustment may not be 
noticeable with some types of picture. However, pictures with lots of lines and shading 
will tend to show incorrect tracking adjustments more clearly, so be sure to check the 
tracking adjustment first.
 It may also be possible to fix flickering and fuzziness by adjusting the brightness, 
contrast
, sharpness and keystone correction settings.
Adjusting the synchronization
Ri
Sync+
Tracking - Tracking +
Sync-
KeystoneShift
Auto
Projector
Ri
Sync+
Tracking - Tracking +
Sync-
KeystoneShift
Auto
Projector
Adjusting the Image Quality