Epson Projector Emp 53 User Manual

80
Maintenance Maintenance
The air filter can be replaced even if the projector is installed to a ceiling.
PROCEDURE
Turn off the projector power, wait for the cool-down
 
period to end, and then disconnect the power cable.
The cool-down period lasts for about 20 seconds.
Put your finger into the recess in the knob of the air 
filter cover, and lift up the air filter cover to remove it.
Replace the air filter with a new one.
Remove the old air filter, and install the new air filter. Place the 
new air...

81
Saving a Users LogoYou can record the image that is currently being projected as a users logo.
Use the remote control to carry out the operations for recording a users logo.
PROCEDURE
Project the image that you would like to use as a 
users logo, and then press the [Menu] button on the 
remote control.Select the Users Logo menu, and then press the 
[Enter] button.
Select Yes in the sub-menu, and then press the 
[Enter] button.
TIP
When a users logo is recorded, the previous users logo will be...

82
Saving a Users Logo Saving a Users Logo
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.
Press the [ ], [ ], [ ] and [ ] buttons to select the part of the 
image to use as the users logo, and then press the [Enter] 
button.
Select Yes at the confirmation screen, and then 
press the [Enter] button.Select the zoom rate in the Zoom rate setting screen, 
and then press the [Enter] button.
4
[ESC]: Return[    ]: Set
[...

83
Saving a Users Logo Saving a Users Logo
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.
7
Save image as users logo?If you save it, the previous users logo willbe overwritten.
YESNO Users Logo
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...

84
Optional AccessoriesThe following optional accessories are available for purchase if required. This list of optional accessories is current as of November 2002. Details of accessories 
are subject to change without notice.
* A special method of installation is required in order to suspend the projector from the ceiling. Please contact the place of purchase if you would like to use 
this installation method. Soft carry case ELPKS16
Use this case if you need to carry the projector by hand.
Spare lamp...

85
GlossaryFollowing is an explanation of some of the terms used in this guide which may be unfamiliar or which were not explained in the text of this guide itself. Further 
information can be obtained by referring to other commercially-available publications.
5BNCA port used to input analogue video signals.
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.
Colour temperatureThe...

86
Glossary Glossary
Progressive scanning
A method of image scanning whereby the image data from a single image is scanned sequentially from top to bottom to create 
a single image.
Refresh rateThe light-emitting element of a display maintains the same luminosity and colour for an extremely short time. Because of this, 
the image must be scanned many times per second in order to refresh the light-emitting element. The number of refresh 
operations per second is called the refresh rate, and is expressed...

87
Glossary Glossary
XGAA type of video signal with a resolution of 1024 (horizontal) × 768 (vertical) dots which is used by IBM PC/AT-compatible 
computers.
YCbCr
The carrier signal which is contained in the colour bar signal used in modern TV transmissions. The name comes from the Y 
(luminance) signal and the CbCr (chroma (colour)) signals.
YPbPrThe carrier signal which is contained in the colour bar signal used in high-definition TV (HDTV) transmissions. The name 
comes from the Y (luminance) signal...

88
List of ESC/VP21 CommandsCommand List
When a power ON command is sent to the projector, the power for the 
projector turns on. When the projector is in a command ready state, it 
returns the 3Ah (:) code. Furthermore, when command processing is 
complete, the projector also returns a : code.
The : code status can be used to determine whether the projector is ready 
or busy. If command processing terminates with an error, an error message 
is output and then the : code is sent.
Communication Protocol...

89
List of ESC/VP21 Commands List of ESC/VP21 CommandsCable Layouts
Serial connection•
•• •Connector shape : D-Sub 9 pin (male)•
•• •Projector input 
connector: Control (RS-232C)

 (PC serial cable) 
Signal Function
GND
5
5
GND
GND Signal wire ground
RD
2
3
TD
TD Transmit data
TD
3
2
RD
RD Receive data
DTR
4
6
DSR
DSR Data set ready
DSR
5
4
DTR
DTR Data terminal ready

USB connection•
•• •Connector shape : USB (type B)
 
(type B) (type A)*
* Can be used as a USB hub.