Epson Projector Emp 7850 User Manual

							50
Adjusting the Screen ImageEMP-7850 User’s Guide
Press the [Auto/Enter] button on the projectors 
control panel and then select the corner to be 
corrected on the screen. 
You can also press the [Enter] button on the remote control to 
select the corner.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.
2
[          ]:Adjust[    ]      :Move next[ESC]   :Return (Press 1 second to
reset)
/
The selected 
angle will 
appear yellow.
3
[          ]:Adjust
Adjust
[    ]      :Mo[    ]      :Mo
ve nee nextxt
[ESC][ESC]
   :Retur:Retur
n (Press 1 second ton (Press 1 second toreset)reset)/
Screen
TIP
 If you press down the [ESC] button on the remote control or the 
projectors control panel for one second while the Quick Corner 
correction screen is displayed, the correction results will be restored 
to their default values.
 If the message Cannot move anymore. appears on the screen 
while using the Quick Corner function, it means that the limit for 
correction has been reached. Check the following two points.
· Is the projection distance appropriate for the size of the projection 
screen?  p.15
· Is the projector tilted too much?   p.45
 If the input signal is interrupted or an image signal that is not 
supported is input while using the Quick Corner function, the 
correction value at that point will be recorded and the Quick Corner 
function will be cancelled.
 When the Quick Corner correction screen is displayed, the following 
functions will be cancelled.
· E-Zoom function  · Real display   · Freeze4 
						

							51 EMP-7850 User’s Guide
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 function uses a 
sensor to measure the condition of the projection surface and automatically 
adjusts the colour of the projected images based on these measurements.
The Wall Shot function also allows shading to be adjusted. If projecting 
onto a screen that is located near a window, the Wall Shot function can be 
used to obtain clear images when they might otherwise appear faded.
PROCEDUREThe Wall Shot function can be operated using either the remote control or 
the projectors control panel.
Press the [Wall Shot] button on either the remote 
control or the projectors control panel while the 
images are being projected.
When the button is pressed, the current status is displayed on 
the screen.
TIP
 Wall Shot can be used for adjustment if the projection distance is 
within approximately 80–1000 cm (2.6–32.8 ft.). However, this 
distance will vary depending on the condition of the projected 
surface, for instance if the projection surface is an extremely 
reflective surface such as a whiteboard, or if it is a highly non-
reflective surface such as a dark wall.
 The sensor may not be able to correctly measure the condition of the 
projection surface if you are projecting on a striped or patterned 
wall. In this event, Wall Shot may not be able to correctly adjust the 
color of the projected images.
1
Remote control
Wall Shot ON 
						

							52
Adjusting the Image QualityEMP-7850 User’s Guide
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 complete, the images will be projected 
in the corrected condition.
To cancel the correction, press the [Wall Shot] button while 
Wall Shot ON is being displayed on the screen so that Wall 
Shot OFF is selected.
23
TIP
 When the projectors power is turned off, images will be projected 
next time with the status set to Wall Shot OFF. However, the 
correction values that were obtained by the previous measurement 
operation will be stored even when the power is turned off.
If projecting in the same location as before, you can retrieve the 
colour correction values that were used previously (the five seconds 
required for readjustment will not be necessary).
The status will change as follows each time the [Wall Shot] button is 
pressed.
When Wall Shot retrieval is selected, the previous adjustment 
values are retrieved.
 If you change the projection location or change the condition of the 
projection surface, you should repeat the Wall Shot measurements. 
If you press the [Wall Shot] button twice while Wall Shot ON is 
being displayed, Wall Shot Readjustment will be displayed and 
adjustment will then start.
Wall Shot Memory CallWall Shot ON
Wall Shot OFFWall Shot Readjustment Wall Shot ONWall Shot OFF 
						

							53
Adjusting the Image QualityEMP-7850 User’s Guide
Adjusting Computer Images
Automatic setup detects analogue RGB signals coming from a connected 
computer connected by a computer cable, and automatically adjusts these 
signals so that the optimum images can be obtained.
Automatic setup involves adjustment of the following three items: 
Tracking
, Position and Sync
. 
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 on the remote control or 
the [Auto/Enter] button on the projectors control panel while 
computer images (analogue RGB signals) are being projected, 
adjustment will then be carried out.
 If you press the [Auto] button on the remote control or the [Auto/
Enter] button on the projectors control panel while the E-Zoom 
function or Freeze function is active, the active function will be 
cancelled and then the adjustment will be carried out.
 Sometimes the signals may not be adjusted correctly depending on 
the type of signals being output by the computer. In such cases, use 
the Tracking, Position and Sync. menu commands to make 
the adjustments manually.   p.54, p.55, p.76
 Automatic setup is not carried out while the preview function is 
being used.
Remote control 
						

							54
Adjusting the Image QualityEMP-7850 User’s Guide
l
If vertical stripes appear in the projected images, 
and this cannot be fixed using automatic setup, 
you will need to adjust the tracking
 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.76
Press the following buttons to adjust the tracking value until the 
vertical stripes disappear from the projected images.
While holding down the [Shift] button on the projectors 
control panel, press the [ ] button.
The tracking value increases each time the button is pressed.While holding down the [Shift] button on the projectors 
control panel, press the [ ] button.
The tracking value decreases each time the button is pressed. Adjusting the Tracking
Projector
Projector
TIP
The images will flash when continuous tracking adjustment is carried 
out, but this is normal. 
						

							55
Adjusting the Image QualityEMP-7850 User’s Guide
If flickering, fuzziness or interference appear in 
images that are input from the computer, and this 
cannot be fixed using automatic setup, you will 
need to adjust the sync
 manually using the 
following procedure.
PROCEDURESync 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 sync.
For adjustment using the configuration menus: 
See   Video - Sync. p.76
Press the following buttons to adjust the sync value until the 
flickering, fuzziness or interference disappears from the projected 
images.
While holding down the [Shift] button on the projectors 
control panel, press the [ ] button.
The sync value increases each time the button is pressed.While holding down the [Shift] button on the projectors 
control panel, press the [ ] button.
The sync value decreases each time the button is pressed. Adjusting the Sync
Projector
Projector
TIP
 If you adjust the sync without adjusting the tracking first, it will not 
be possible to get the best adjustment results. Incorrect tracking 
adjustment may not be noticeable with some types of image. 
However, images 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. 
						

							56
Adjusting the Image QualityEMP-7850 User’s Guide
Selecting the Projection Quality (Colour Mode Selection)
The following five preset colour 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 colour mode that 
corresponds to the projected images. The brightness of the images will 
vary depending on which colour mode is selected.
PROCEDURESelecting the colour mode can be carried out using either the remote 
control or the configuration menus. This procedure explains how to 
use the remote control to select the colour mode.
For selecting using the configuration menus 
See   Video - Color Mode
 p.77, p.80
The colour mode changes as follows each time the [Color 
Mode] button on the remote control is pressed.The current setting is displayed on the screen each time the mode is 
changed.The default setting for the colour mode is as follows:
When computer images are being input: Presentation
When other types of images are being projected: Dynamic
Mode
Application
Dynamic
Images are modulated and made fresher to emphasise 
brightness.
Presentation 
Brightness is emphasised. For presentations in bright rooms.
Theatre
Movie images are optimised using natural tints.
Living Room
Brightness is emphasised. Ideal for playing video games in 
bright rooms.
sRGB
Images conform to the sRGB colour standard. If the connected 
source has a sRGB mode, set both the projector and the 
connected signal source to sRGB.
Dynamic
Living Room sRGBTheatre Presentation
Remote control
Presentation 
						

							57 EMP-7850 User’s Guide
Adjusting the VolumeYou can adjust the volume for the sound from the projectors built-in speaker 
or from the external speakers that are connected to the projector.
PROCEDUREThe volume can be adjusted using either the remote control, the projectors 
control panel or the configuration menus. This procedure explains how to 
use the remote control and the projectors control panel to adjust the 
volume.
For adjustment using the configuration menus: 
See   Audio - Volume p.81Press the [Volume] button on either the remote control or 
the projectors control panel.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.
+
-
Volume
  15 :
Remote control
TIP
 If the value displayed in the gauge on the screen stops changing 
when the volume is being adjusted, it indicates that the limit for 
volume adjustment has been reached.
 The volume adjustments are stored individually for each image 
source. 
						

							58 EMP-7850 User’s Guide
Preventing theft (Password Protect)
The projector is provided with a Password Protect function. When 
Password Protect is set to ON, a password entry screen is displayed when 
the power is next turned on after the power plug has been disconnected 
from the electrical outlet, and you must enter a password before projection 
can start. This means that the projector cannot be taken away and used by 
someone else, thereby providing a defence against theft.
The default setting is for Password Protect to be OFF. You should change 
the Password Protect setting to ON and set a password as soon as 
possible after starting to use the projector.
When Password Protect is enabled
When Password Protect is enabled (ON), a Password Protect Release 
screen requesting you to enter a password will be displayed when the 
power plug is inserted into the electrical outlet and the power for the 
projector is first turned on.
Use the numeric buttons on the remote control to set the password.   p.59
If the correct password is entered, projection will then start.If you leave the power plug connected to the electrical outlet, the Password 
Protect Release screen will not be displayed the next time the projectors 
power is turned on and projection can be started straight away. The 
Password Protect Release screen will only be displayed the first time the 
projectors power is turned on after the power cord has been inserted into 
an electrical outlet.
Password Protect ReleasePassword Protect Release
Enter the password.Enter the password.
[0-9]:Enter[0-9]:Enter
TIP
 If an incorrect password is entered three times in succession, the 
message The projectors operation will be locked. will be displayed 
for approximately five minutes, and then the projector will switch to 
standby mode. If this happens, disconnect the power plug from the 
electrical outlet and then reinsert it and turn the projectors power 
back on. The screen requesting you to enter the password will be 
displayed, so enter the password correctly.
If you happen to forget the password, make a note of the request 
code: xxxx number that appears in the Password Protect Release 
screen and contact the nearest address provided in the 
International Warranty Conditions section of the Safety 
Instructions/World-Wide Warranty Terms booklet.
 If the above operation should happen to be repeated nine times 
without a correct password being entered, the following message will 
be displayed and the projectors power will not be able to be turned 
on.
The projectors operation will be locked. Contact the nearest 
address provided in the International Warranty Conditions section 
of the Safety Instructions/World-Wide Warranty Terms booklet. 
						

							59
Preventing theft (Password Protect)EMP-7850 User’s Guide
Entering a password with the remote control
Press the [Num] button on the remote control to enter the password.
If you press the [Num] button, it will light up and the remote control 
buttons will change to numeric keypad mode so that you can enter 
numbers.
If you press the [Num] button once more, it will stop lighting up and 
numeric keypad mode will be cancelled.
Changing the Password Protect settings
Follow the procedure given below to enable Password Protect and to set 
the password.PROCEDURE
Press the [Freeze] button on the remote control for 
approximately five seconds.
If using the projectors control panel, hold down the 
[ ] button and press the [Menu] button for 
approximately five seconds.
The Password Protect menu will be displayed.
Remote control
The buttons inside the box will switch 
to numeric keypad mode while the 
[Num] button is lit.
Numeric buttons
1
Remote control
TIP
If Password Protect has already been enabled, the Password Protect 
Release screen will be displayed.
When the correct password has been entered, the Password Protect 
menu will be displayed. 
See   When Password Protect is enabled p.58