Epson Projector Emp 750 User Manual

							
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MaintenanceUser’s GuideReplacing Consumables
This section describes how to replace the lamp and the air filters.
It is time to replace the lamp when:
 The message Replace the Lam
p. appears on the screen when 
projection starts.. When the Lamp indicator is flashing orange.
 The projected image gets darker  or starts to deteriorate.Lamp Replacement Period
A message will be displayed.
Flashing orange
TIP
 The lamp replacement message is set to appear after the following 
periods of time in order to mainta in the initial brightness and quality 
of the projected images.
· When used continuously at hi gh brightness: Approx. 1900 hours
· When used continuously at low brightness : Approx. 2900 hours
Brightness Control  sp.62
 If you continue to use the lamp afte r this period, the possibility of the 
lamp breaking becomes greater.  When the lamp replacement 
message appears, replace the lamp with a new one as soon as 
possible, even if it is still working.
 Depending on the characteristics of  the lamp and on the way it has 
been used, the lamp may become darker or stop working before the 
lamp warning message appears. Yo u should always have a spare 
lamp ready in case it is needed.
 Contact your dealer for a spare lamp. 
						

							
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MaintenanceUser’s Guide
PROCEDURE
Turn off the projectors powe
r, wait until the pip-pip 
confirmation buzzer sounds , and then disconnect the 
power cable.
Wait until the lamp has cooled down, then remove the 
lamp cover from the base of the projector.
It takes approximately one hour for the lamp to cool down by 
itself after the cool-down period has finished.
While pressing the two hooks, pull the lamp cover up to 
remove it.Loosen the two lamp fixing screws.
Loosen the two lamp fixing screws with the screwdriver that is 
supplied with the spare lamp  (or your own cross head 
screwdriver).
Replacing the Lamp
CAUTION
 If you are replacing the lamp because it has stopped working, it is 
possible that the lamp is broken.
If replacing the lamp of a projecto r which has been installed on the 
ceiling, you should always assume  that the lamp is broken and 
handle it with extreme care during removal. Furthermore, you 
should stand to the side of the projector, not underneath it.
 Wait until the lamp has co oled down sufficiently before removing the 
lamp cover. It takes a further one hour after the power has been 
turned off for the lamp to be cool enough.1
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MaintenanceUser’s Guide
Take out the lamp.
Hold the lamp as shown in the illustration below and lift it up 
and out of the projector.
If the lamp is broken replace it 
with a new lamp, or contact your 
local dealer for further advice. If replacing the lamp yourself, 
be careful to avoid pieces of broken glass.Install the new lamp.
Insert the new lamp so that the lamp fits the place correctly and 
once it is fully inserted, tighten the two screws.
Install the lamp cover.
Insert the two cover tabs into the projector, and then press the 
other side of the lamp cover until it clicks into place.
45
6
TIP
 Install the lamp securely. If the  lamp cover is removed, the lamp 
turns off automatically as a safety precaution. Moreover, the lamp 
will not turn on if the lamp or the lamp cover is not installed 
correctly.
 The lamp contains mercury. Di spose of used lamps properly in 
accordance with your  local regulations. 
						

							
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MaintenanceUser’s Guide
The projector has a built-in counter  which keeps track of the lamp 
operating time. When the cumulative  operating time reaches a certain 
point, it causes the replacement  warning message to be displayed. 
Therefore, the counter needs to be re set after the lamp has been replaced 
with a new one. You can do this  using the configuration menu.
PROCEDURE
Connect the power cable, turn on the projectors 
power, and then press the [Menu] button.
The configuration menu will be displayed.
Select Lamp-Hours Reset from the Reset menu 
and then press the [Enter] button.Select Yes and then press the [Enter] button.
The lamp operating time will then be reset.
Resetting the Lamp Operating Time
TIP
Do not reset the lamp operating time  except after the lamp has been 
replaced, otherwise the lamp replacement period will not be indicated 
correctly.1
Remote Control Projector
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MaintenanceUser’s Guide
If the air filters are broken or if th e warning message reappears after they 
have been cleaned, th ey should be replaced.
The air filter can be replaced even if  the projector is installed on a ceiling.
PROCEDURE
Turn off the projectors power, wait until the pip-pip 
confirmation buzzer sounds , and then disconnect the 
power cable.Remove the air filter.
Put your finger into the recess of the air filter and slide it 
forward to remove it.
Install the new air filter.
Slide the air filter covers in from the outside and push them in 
until they click into place.
Replacing the Air Filter12
3
TIP
Dispose of used air filters properly in accordance with your local 
regulations.
Air filter frame: Polycarbonate, ABS plastic
Air filter: Polyurethane foam 
						

							
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User’s Guide
Saving a Users LogoYou can record the image that is currently being projected as a users logo.
PROCEDURE
Project the image that you would like to use as a 
users logo, and then press the [Menu] button.
Select User’s Logo from  the Extended menu, and 
then press the [Enter] button.
TIP
When a users logo is recorded, the previous users logo will be 
erased.1
Projector
Remote Control
2
TIP
 If the User’s Logo Protect function of Password Protect is set to 
ON, a message is displayed and the users logo can not be 
recorded. To record a users logo, set User’s Logo Protect to 
OFF first.  sp.33
 If keystone correction or E-Zoom ha ve been carried out, they will be 
cancelled when the User’s  Logo menu is selected. 
						

							
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Saving a Users LogoUser’s Guide
Select Yes in the sub-menu, then press the [Enter] 
button.
The image to be recorded
 and a selection marquee 
box will be displayed. Move  the marquee box to select 
the part of the image to use.
Tilt the [ ] button on the remote  control or press the [ ], [ ], 
[ ] and [ ] buttons on the projector s control panel to select the 
area of the image to use as the  users logo, and then press the 
[Enter] button.
3
TIP
When you press the [Enter] button on either the remote control or the 
projectors control panel, the image  signal will be displayed at their 
original resolution, so  if a signal with a resolution that is different 
from the panel resolution of the proj ector is projected, or if a video 
image is being projected, the display size will change.
4
TIP
Users logos can be saved at up to 480  × 360 dots in size. 
						

							
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Saving a Users LogoUser’s Guide
Select Yes at the confirmation screen, and then 
press the [Enter] button.Select the zoom rate in th
e Zoom rate setting screen, 
and then press the [Enter] button.
Select Yes at the confirmation screen, and then 
press the [Enter] button.
The image will then be saved. Once the image has been saved, 
the message Completed. will be displayed.
56
7
TIP
 Saving the users logo may take a few moments (about 15 seconds). 
Do not use the projector or any other sources which are connected to 
the projector while the users logo  is being saved, otherwise it may 
result in errors in projector operation.
 Once a users logo has been saved, the logo setting cannot be  returned to the factory default. 
						

							
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User’s Guide
Optional Accessories and ConsumablesThe following optional accessories are available for purchase if required. This list of optional accessories is current as of May 2005. Details of accessories are 
subject to change wit hout notice. Varies depending on country of purchase.
* A special method of installation is required in order to suspend the projector from the ceiling.  Please contact your dealer if you would like to 
use this installation method.
Optional AccessoriesSoft carrying case  ELPKS16
Use this case if you need to carry the projector by hand.
You can put a laptop computer into the case.60 screen ELPSC07
80 screen ELPSC08
100 screen ELPSC10
A portable roll-type screen. ( Aspect ratio
g 4:3)
50 portable screen ELPSC06 
A compact screen which can be ca rried easily. (Aspect ratio 4:3)VGA-HD15 PC cable ELPKC02 
(1.8 m (6 ft.) - for mini D-Sub 15-pin/mini D-Sub 15-pin)
This is the same computer  cable as the projectors accessory computer cable.VGA-HD15 PC cable ELPKC09
(3 m (9.8 ft.) - for mini  D-Sub 15-pin/mini D-Sub 15-pin)
VGA-HD15 PC cable ELPKC10
(20 m (65.6 ft.) - for mini  D-Sub 15-pin/mini D-Sub 15-pin)
Use this extension cable if the accessory computer cable is too short.Component video cable ELPKC19
(3 m (9.8 ft.) - for mini  D-Sub 15-pin/RCA male  × 3)
Ceiling plate * ELPFC03
Pipe 370 (370 mm (14. 57 in.)/silver)* ELPFP04
Pipe 570 (570 mm (22. 44 in.)/silver)* ELPFP05
Pipe 770 (770 mm (30. 31 in.)/silver)* ELPFP06
Use when installing the projector on a  high ceiling or a ceiling with veneer 
panels.Ceiling mount  * ELPMB18
Use when installing the projector to a ceiling.ConsumablesSpare lamp ELPLP32
Use as a replacement for spent lamps.Filter kit ELPAF08
(2 air filters)
Use as a replacement fo r used air filters. 
						

							
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User’s Guide
GlossaryThe following is an explanation of some of the terms used in this guide which may be unfamiliar or which are not explained in the text of this guide itself. Further 
information can be obtained by referring to  other commercially-available publications.
5BNC
A port used to input analogue video signals.
Abs. Color Temp.
The temperature of an object which is emit ting light. If the absolute colour temperature is high, the colours tend to take on a 
bluish tinge. If the absolute colour  temperature is lower, the colours tend to take on a reddish tinge.
Ad hoc mode
A method of wireless LAN connection that communicates with wireless L AN clients without using an access point.
Aspect ratio
The ratio between an images length and  its height. HDTV images have an aspect ratio of 16:9 and appear elongated. The 
aspect ratio for standard images is 4:3.
Authentication server
This is a server that  centrally manages user authenticati on. By using an authentication server, management  of user information 
and user authentication tasks can be cen tralised. In addition, many authentication servers use high-level authentication 
methods and so they also  tend to be highly secure.
CCX
Abbreviation for Cisco Compatible Extensi ons. This is a security technology for wireless LANs developed by Cisco Systems, 
Inc. It uses  RADIUS server
g for authentication. Several authen tication methods are available for CCX, and this projector uses 
LEAP
g  authentication.
Component video
Video signals which have the video brightness signals and colour  signals separated, in order to provide better image quality. 
In high-definition TV (HDTV), it refers to  images which consist of three independent signals: Y (luminance signal), and Pb 
and Pr (colour difference signals).
Composite video
Video signals which have the video bright ness signals and colour signals mixed together. The type of signals commonly used 
by household video equipment (N TSC, PAL and SECAM formats). 
The carrier signal Y (luminance  signal) and chroma (colour) signal which are cont ained in the colour bar are overlapped to 
form a single signal.
Contrast
The relative brightness of the light and dark areas of an im age can be increased or decreased in order to make text and 
graphics stand out more clearly, or to  make them appear softer. Adjusting this  particular property of an image is called 
contrast adjustment.
Cool-down
This is the process by which the pr ojectors lamp is cooled down after it has become hot through  use. Cool-down is carried out 
automatically when the [Power] bu tton is pressed to turn off the power. Do not  disconnect the power cable while cool-down is 
in progress, otherwise the cool-down process will not work prope rly. If the cool-down period is not allowed to finish normally, 
the projectors lamp and internal component s will remain at high temperatures, and this may shorten the operating life of the 
lamp or cause problems with  the operation of the projector.
DHCP
Abbreviation of Dynamic Host Configurati on Protocol. This protocol automatically assigns an IP address to a computer 
connected to a network. 
Dolby Digital
A sound format developed by Dolby Laborator ies. Normal stereo is a 2-channel format which uses two speakers. Dolby 
Digital is a 6-channel (5.1-cha nnel) system which adds to this a centre speaker two rear speakers and a sub-woofer.
DPOF
Abbreviation of Digital Print Order Format, which is a form at used to record infomation concerning the printing of 
photographs taken with a digital camera (whi ch images to print, how many copies, etc.) to recordable media, such as a 
memory card.