Epson Projector Emp 7900 User Manual

40
Adjusting the Screen Image
Manually Correcting Keystone Distortion
This projector is equipped with an automatic keystone correction function 
that detects the vertical angle of the projector during projection and 
automatically corrects vertical keystone distortion. If you would like to 
make further fine adjustments after automatic keystone correction has been 
carried out, or if the projector is tilted horizontally, you can carry out 
keystone correction manually.This projector is equipped with the...

41
Adjusting the Screen Image
When the projector has been tilted vertically, automatic keystone 
correction is carried out so that images with no distortion are projected.
Automatic keystone correction is carried out approximately one second 
after the projector is set up and projection starts. A vertical keystone 
correction gauge appears on the screen while automatic adjustment is in 
progress.
TIP
 The Auto Keystone, H/V-Keystone and Quick Corner 
functions cannot both be used together to correct...

42
Adjusting the Screen Image
Vertical correction and horizontal correction can be carried out using either 
the projectors control panel or the configuration menus. This procedure 
explains how to use the projectors control panel to correct keystone 
distortion.
For adjustment using the configuration menus: - Setting - Keystone - 
H/V-Keystone  p.80
If you use the horizontal correction function when height correction 
adjustment has already been carried out, the height correction adjustment 
will be...

43
Adjusting the Screen Image
When Automatic keystone correction and horizontal correction is carried 
out, the height of the projected images will become shorter. Use the height 
correction function to adjust the height of the projection area.
The height correction function is accessible from the configuration menu.
This cannot be set when vertical correction is carried out.PROCEDURE
Press the [Menu] button on either the remote control 
or the projectors control panel. Then select Height 
from the...

44
Adjusting the Screen Image
Quick Corner correction can be carried out using either the projectors 
control panel or the configuration menus. This procedure explains how to 
use the projectors control panel to correct keystone distortion.
If using the configuration menu: Setting - Keystone - Quick Corner 
 p.80PROCEDURE
Press the [ ], [ ], [ ] or [ ] button on the 
projectors control panel.
The Quick Corner correction screen will be displayed.
Press the [Auto/Enter] button on the projectors 
control...

45
Adjusting the Screen Image
Press the [ ], [ ], [ ] and [ ] buttons on the 
remote control to correct the angle position.
You can also tilt the [ ] button on the remote control to correct 
the angle position.
When the adjustment is complete, press the [Menu] 
button on either the remote control or the projectors 
control panel to close the configuration menu.
3
[          ]:Adjust[    ]      :Move next[ESC]   :Return (Press 1 second to
reset)/
Screen
TIP
 If you press down the [ESC] button on the...

46
Adjusting the Image QualityThe quality of the projected images can be adjusted as follows.Projecting Easy-to-see Images Without a Screen  (Wall Shot)
When the Wall Shot function is used, images can be projected without loss 
of original colour even onto surfaces such as blackboards and coloured 
wall surfaces which are being used instead of a screen. For example, if 
projecting onto a green blackboard, the projected images would normally 
appear greenish and be very difficult to see. The Wall Shot...

47
Adjusting the Image Quality
To change the status, press the [Wall Shot] button  
while the status is being displayed on the screen.
For example, if you press the [Wall Shot] button while Wall 
Shot OFF is displayed, the status will change to Wall Shot 
ON and measurement of the projection surface will start.
Colours in the order red → green → blue → black will be 
projected for approximately five seconds while measurement is 
in progress.Once the measurement is finished and colour 
correction is...

48
Adjusting the Image Quality
Adjusting Computer Images
Automatic setup detects analogue 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 the following three items: 
Tracking
g, Position and Sync
g. 
Automatic Setup
TIP
 If Auto Setup in the Advanced2 menu is set to OFF (the 
default setting for this command is ON), automatic setup is not 
carried out. If you press the [Auto] button...

49
Adjusting the Image Quality
l
If vertical stripes appear in the projected images, 
and this cannot be fixed using automatic setup, 
you will need to adjust the tracking
g manually 
using the following procedure.
PROCEDURETracking adjustment can be carried out using either the projectors 
control panel or the configuration menus. This procedure explains 
how to use the projectors control panel to adjust the tracking.
For adjustment using the configuration menus: 
See Video - Tracking   p.73
Press the...