![Epson EMP-74L [95/107] Glossary](/img/pdf.png)
Epson EMP-74L [95/107] Glossary
![Epson EMP-74L [95/107] Glossary](/views2/1055829/page95/bg5f.png)
94
Glossary
Following is an explanation of some of the terms used in this
guide which may be unfamiliar or which are not explained in the t
ext 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 whic
h is emitting 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.
Aspect ratio
The ratio between an image's 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.
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 cons
ist 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 toge
ther. The type of signals commonly used
by household video equipment (NTSC, PAL and SECAM formats).
The carrier signal Y (luminance signal) and chroma (colour) si
gnal which are contained 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 soft
er. Adjusting this particular property of an image is called
"contrast adjustment".
Cool-down
This is the process by which the projector's lamp is cooled do
wn after it has become hot through use. Cool-down is carried out
automatically when the [Power] button 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 properl
y. If the cool-down period is
not allowed to finish normally,
the projector's lamp and internal component
s will remain at high temperatures, and th
is may shorten the operating life of the
lamp or cause problems with the operation of the projector.
Dolby Digital
A sound format developed by Dolby Laboratories. Normal ster
eo is a 2-channel format which uses two speakers. Dolby
Digital is a 6-channel (5.1-channel) syst
em which adds to this a centre speaker two rear speakers and a sub-woofer.
EMP Link 21L
A utility software program that allows the pr
ojector to be connected to a computer so
that the computer can be used to control
the projector. For details on acquiring the software and for in
structions on using the software and compatible projector
models, please visit the Web site
http://www.epson.co.uk/support/download/projector.htm
.
HDTV
An abbreviation for High-Definition Televi
sion. It refers to high-definition system
s which satisfy the following conditions.
•Vertical resolution of 750p or 1125i or greater (p =
progressive scanning
, i = interlaced scanning
)
•Screen aspect ratio
of 16:9
•Dolby Digital
audio reception and playback (or output)
Interlaced scanning
A method of image scanning whereby the image
data is divided into fi
ne horizontal lines which are displayed in sequence
starting from left to right and then from the top to the bo
ttom of the screen. The even-num
bered lines and odd-numbered lines
are displayed alternately.
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.
Содержание
- Notations used in this user s guide 2
- Automatic keystone correction function 3
- Brightness control 3
- Colour mode function 3
- Features of the projector 3
- Compact and lightweight while producing beautiful crisp images 4
- Easy to operate 4
- Password protect function assists administration and theft prevention 4
- Advanced operations 5
- Basic operations 5
- Before using the projector 5
- Contents 5
- Appendices 6
- Troubleshooting 6
- Before using the projector 7
- Before using the remote control 12 7
- Connecting to a computer 16 7
- Connecting to a video source 22 7
- Installation 14 7
- Part names and functions 7 7
- Playing sound from the video equipment 25 7
- Preventing theft password protect 27 7
- Front top 8
- Part names and functions 8
- Control panel 9
- Help button p 9 9
- Keystone button p 0 9
- Part names and functions 9
- Power button p 3 p 5 9
- Source button p 4 9
- Remote control 12
- Before using the remote control 13
- Do not allow sunlight or light from fluorescent lamps to shine directly onto the projector s remote control light receiving areas otherwise it may interfere with the reception of signals from the remote control if delays in the responsiveness of the remote control occur or if it does not operate after it has been used for some time it probably means that the battery is getting flat if this happens replace the battery with a new one p 4 13
- Point the remote control light emitting area toward one of the remote control light receiving areas on the projector and operate the remote control buttons 13
- Using the remote control 13
- Using the remote control and remote operating 13
- Using the remote control and remote operating range 13
- When not using the remote control place it into the remote control holder underneath the projector so that it does not get lost 13
- Approx 6 m 20 ft approx 30º horizontally approx 15º vertically 14
- Before using the remote control 14
- Operating angle horizontal 14
- Operating angle vertical 14
- Operating distance operating angle 14
- Remote operating range 14
- Use the remote control within the ranges indicated below if the distance or angle between the remote control and the remote control light receiving area is outside the normal operating range the remote control may not work 14
- When suspended from the ceiling 14
- Before setting up the projector be sure to first read the separate safety instructions world wide warranty terms 15
- Caution 15
- Installation 15
- Setting up the projector 15
- When using ceiling projection or projection using a translucent screen set the projection command in the advanced menu to match the installation method p 2 15
- Installation 16
- Screen size and projection distance 16
- The distance between the projector s lens and the screen determines the actual image size 16
- The projector s lens allows a zoom ratio of up to about 1 the image size at the maximum zoom setting is about 1 times bigger than the image size at the minimum zoom setting the image size will be reduced when keystone correction is carried out 16
- When installing against a wall leave a space of about 20 cm 7 in between the projector and the wall 16
- While referring to the following table position the projector so that the images are projected onto the screen at the optimum size the values should be used as a guide for setting up the projector the actual values will vary depending on projection conditions and the zoom setting 16
- Caution 17
- Connecting to a computer 17
- Eligible computers 17
- When connecting the projector to a computer be sure to check the following turn off the power for both the projector and the computer before connecting them if the power for either device is on at the time of connection damage may result check the shapes of the cable connectors and the device ports before making the connections if you try to force a connector to fit a device port with a different shape or number of terminals damage to the connector or port may result do not bind the power cable and the connecting cable together if the power cable and the connecting cable are bound together image interference or errors in operation may result 17
- You may need to purchase a separate adapter depending on the shape of the computer s port refer to the documentation provided with the computer for further details if the computer and projector are too far away from each other for the accessory computer cable to reach use the optional vga hd15 pc cable see appendices optional accessories p 3 17
- If the monitor port is a 13w3 port 18
- If the monitor port is a mini d sub 15 pin port 18
- Projecting images from the computer 18
- If the monitor port is a 5bnc port 19
- Connecting to a computer 20
- Pointer wireless mouse function 20
- The usb cable can only be connected to computers with a standard usb interface if using a computer which is running windows the computer must have had a full version of windows 98 2000 me xp home edition xp professional installed if the computer is running a version of windows 98 2000 me xp home edition xp professional that has been upgraded from an earlier version of windows correct operation cannot be guaranteed it may not be possible to use the mouse function under some versions of both the windows and macintosh operating systems some computer settings may have to be changed in order for the mouse function to be used consult the documentation for the computer for further details 20
- Usb cable to connect the usb port of the computer to the usb port at the rear of the projector 20
- Using the remote control to operate the mouse 20
- Using the remote control to operate the mouse pointer wireless mouse function 20
- When using the remote control as a wireless mouse the page down and page up buttons on the remote control can be used to scroll back and forth through pages when projecting a powerpoint presentation 20
- You can use the remote control as a wireless mouse to control the mouse pointer on the computer screen to do this you must use the accessory 20
- Connecting to a computer 21
- Drag and drop 21
- If the mouse button settings have been reversed at the computer the operation of the remote control buttons will also be reversed the wireless mouse function cannot be used while the following functions are being used while a configuration menu is being displayed while a help menu is being displayed while the e zoom function is being used while a user s logo is being captured 21
- Left click 21
- Moving the mouse pointer 21
- Once the connection has been made the mouse pointer can be operated as follows 21
- Right click 21
- Connecting to an external monitor 22
- Video images cannot be output to an external monitor the setting gauge for keystone correction and the configuration menus and help menus are not output to the external monitor 22
- Connecting to a video source 23
- Projecting composite video images 23
- Connecting to a video source 24
- If more than one external component is connected to the projector after projection starts press the s video video button on the remote control or the source button on the projector s control panel until s video is displayed in the projected image p 4 24
- Projecting component video images 24
- Projecting s video images 24
- Use a commercially available s video cable to make the connections 24
- Use the optional component video cable to make the connection see appendices optional accessories p 3 24
- Projecting rgb video images 25
- If using a commercially available 2rca l r stereo mini jack audio cable use one that is marked as no resistance 26
- Playing sound from the video equipment 26
- You can adjust the volume after projection has started p 6 26
- Preventing theft password protect 28
- When password protect is enabled 28
- When power on protect is enabled on 28
- Setting password protect 29
- Once the setting is complete press the menu button 31
- Adjusting the image quality 41 32
- Adjusting the screen image 37 32
- Basic operations 32
- Turning off the projector 35 32
- Turning on the projector 32 32
- Connecting the power cable 33
- Turning on the projector 33
- Turning on the power and projecting images 34
- If more than one external device is connected to the projector use the remote control or projector control panel buttons to select the image source to be projected while referring to the following table 35
- If only one signal source has been connected the signals from that source will be projected without needing to press any of the buttons on the remote control or the projector s control panel if the no signal message does not disappear check the connections again if a laptop computer or a computer with an lcd screen has been connected to the projector the images may not be projected straight away after starting projection check that the computer has been set up to output signals externally the following table shows examples of how to toggle output settings for details refer to the section of the documentation provided with your computer under a heading such as external output connecting an external monitor or similar 35
- If the same still picture is projected for a long period of time the projected image may become burned in on the computer screen you should avoid leaving the same image displayed for long periods 35
- Turning off the projector 36
- Adjust by turning the zoom ring the image can be enlarged in this way to 1 times the normal size 38
- Adjusting the image size zoom function 38
- Adjusting the screen image 38
- Focusing the screen image 38
- If you would like to enlarge the image further move the projector further away from the screen p 5 38
- Turn the focus ring to adjust the image focus 38
- Adjusting the image angle and automatic keystone 39
- Adjusting the image angle and automatic keystone correction function 39
- Correction function 39
- If the projector is tilted horizontally turn the bases of the front adjustable feet to adjust the angle when the projector is tilted horizontally the correction may not be carried out correctly p 9 39
- Procedure 39
- To retract the front adjustable feet gently push down on the projector while pressing the two foot adjust buttons 39
- While pressing the two foot adjust buttons at either side lift up the front of the projector so that the front adjustable feet can extend extend the front adjustable feet until the desired angle is obtained and then release the foot adjust buttons 39
- Manually correcting keystone distortion 41
- Adjusting computer images and rgb video images 42
- Adjusting the image quality 42
- Automatic setup 42
- Colour mode selection 45
- Dynamic presentation theatre 45
- Living room srgb blackboard 45
- Selecting the projection quality 45
- Selecting the projection quality colour mode selection 45
- The colour mode can also be set using the color mode command in the image menu p 2 p 5 45
- The colour mode changes as follows each time the color mode button is pressed 45
- The current setting appears in the top right corner of the screen each time the colour mode is changed 45
- The default setting for the colour mode is as follows when computer or rgb video images are being input presentation when other images are being input dynamic 45
- Advanced operations 46
- Functions for enhancing projection 46 46
- Using the configuration menu functions 50 46
- A v mute 47
- Functions for enhancing projection 47
- Press the a v mute button the image and sound will then be paused 47
- Projection starts again when the a v mute button on the remote control is pressed you can also continue normal projection by pressing the esc button 47
- The default user s logo is the epson logo to change the user s logo you need to record your own logo p 0 47
- When the a v mute function is being used the brightness control setting in the advanced menu to will automatically change to low when the a v mute function is cancelled the brightness control setting will return to the original setting 47
- You can use the background color function in the setting menu to set the screen appearance when the images and sound have been paused to any one of the following three settings p 8 47
- Freeze 48
- Press the freeze button the images will then be paused 48
- Pressing the freeze button also clears configuration menu displays and help messages the freeze function still works while the e zoom function is being used 48
- Procedure 48
- To continue projecting the images press the freeze button once more you can also continue normal projection by pressing the esc button 48
- After making the adjustment press the menu button to exit the configuration menu 49
- Equipment changing the aspect ratio 49
- Press the and buttons to set the aspect ratio to either 4 3 or 16 9 and then press the enter button 49
- Press the menu button on the remote control and then select aspect ratio from the image menu for details on this operation refer to using the configuration menus p 6 49
- Procedure 49
- Wide screen projection of images from video 49
- Wide screen projection of images from video equipment changing the aspect ratio 49
- E zoom 50
- Using the configuration menu functions 51
- Computer analogue rgb rgb video 52
- Image menu 52
- List of functions 52
- Component video ycbcr ypbpr 55
- Video composite video s video 55
- Audio menu 58
- The audio menu settings are saved individually for each input signal source 58
- Setting menu 59
- User s logo menu 61
- Advanced menu 62
- Component video ycbcr ypbpr 65
- Computer analogue rgb rgb video 65
- Info menu 65
- Video composite video s video 65
- Reset all menu 66
- Using the configuration menus 67
- Problem solving 71 69
- Reading the indicators 1 69
- Troubleshooting 69
- Using the help 69 69
- When the indicators provide no help 4 69
- Using the help 70
- Repeat the operations in steps 2 and 3 to proceed through the menu to more detailed items the help menu is cleared when the help button is pressed 71
- Power indicator 72
- Problem solving 72
- Reading the indicators 72
- Warning indicator 73
- If the projector is not operating properly even though the indicators are all showing normal refer to when the indicators provide no help on the following page if an indicator is showing a status which does not appear in the previous tables contact your dealer or the nearest address provided at international warranty conditions in safety instructions world wide warranty terms booklet 74
- When the indicators provide no help 75
- Problems relating to images 76
- Problems when projection starts 81
- Other problems 82
- Appearance 102 83
- Appendices 83
- Cleaning 3 83
- Command list 97 communication protocol 97 cable layouts 98 83
- Glossary 94 83
- Index 103 83
- List of esc vp21 commands 97 83
- List of supported monitor displays 100 83
- Maintenance 83 83
- Optional accessories 93 83
- Replacing consumables 4 83
- Saving a user s logo 90 83
- Specifications 101 83
- Usb connection setup 99 83
- Be sure to read the separate safety instructions world wide warranty terms before cleaning 84
- Cleaning 84
- Cleaning the air filters and air intake vent 84
- Cleaning the lens 84
- Cleaning the projector case 84
- Do not rub the lens with harsh materials or subject the lens to shocks as it can easily become damaged 84
- Do not use volatile substances such as wax alcohol or thinner to clean the projector case these can cause the case to warp and make the coating finish peel off 84
- If the air filters are broken or if the warning message reappears after they have been cleaned they should be replaced replace with a new air filter see appendices optional accessories p 3 84
- Maintenance 84
- Spare lamps are provided with a spare air filter the air filter should also be replaced when the lamp is replaced 84
- Replacing consumables 85
- Lamp replacement period 86
- Project the image that you would like to use as a user s logo and then press the menu button 91
- Saving a user s logo 91
- Select the user s logo menu and then press the enter button 91
- Select yes in the sub menu then press the enter button 91
- 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 93
- Optional accessories 94
- Glossary 95
- Command list 98
- Communication protocol 98
- List of esc vp21 commands 98
- 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 98
- Cable layouts 99
- Connector shape d sub 9 pin male 99
- Connector shape usb type b 99
- List of esc vp21 commands 99
- Projector input connector control rs 232c 99
- Serial connection 99
- Usb connection 99
- Usb connection setup 100
- Component video rgb video 101
- Composite video s video 101
- Computer rgb video 101
- Connection is not possible if the equipment does not have a vga output port 101
- List of supported monitor displays 101
- The projection of some signals not listed in the table may still be possible however not all functions may be supported 101
- Specifications 102
- Appearance 103
- General terms 104
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