Epson Powerlite 821p Multimedia Projector Users Guide

							Fine-tuning the Projector61
Viewing Lamp Usage and Other 
Information
Use the Info menu to view information about the display settings of 
your computer and the number of hours the lamp has been used.
1. Press the 
Menu button and select the Info menu. You see one of 
the following menus:
■Lamp Hours
Displays the number of hours the lamp has been used. The 
life span of the lamp ranges from about 2000 hours in 
High 
brightness mode to about 3000 hours in 
Low brightness 
mode. If the number shown is close to 2000 or the 
information is displayed in red, make sure you have a spare 
lamp handy.
■Source
Displays the input source currently being projected.
■Input Signal (computer, RGB video, and component video)
Displays the input signal setting.
■Resolution (computer, RGB video, and component video)
Displays the input resolution.
■Video Signal (composite and S-video)
Displays the video signal format.
note
You can make changes to 
many of the signal settings on 
the Signal menu. See page 55 
for details.
note
The lamp usage timer doesn’t 
register until you’ve used the 
lamp for at least 10 hours.
Computer (analog RGB, digital RGB, RGB 
Video/Component videoVideo (Composite video, S-Video)
 
  
						

							62Fine-tuning the Projector
■Refresh Rate (computer, RGB video, and component video)
Displays the refresh rate.
■Sync Info (computer, RGB video, and component video)
Provides information that may be needed by the service 
technician.
2. When you’re finished, press 
Esc or Menu.
Using the Projector’s Security Features
To prevent unauthorized use of the projector, you can do the 
following:
■Create an identifying user logo that is displayed at startup and/or 
when the 
A/V Mute button is pressed
■Assign a password; this can be disabled for a set period if you want 
to loan the projector to someone
■Disable the projector’s buttons; this is useful, for example, if 
you’re projecting in a classroom and you want to ensure that no 
one touches the projector’s buttons while you’re using the remote 
control
If you create a user’s logo for the projector, you can lock the logo on so 
it is displayed as the startup screen and/or AV/Mute screen. 
Unauthorized users cannot turn it off or change it. This feature is 
intended to discourage theft and provides a way to identify the 
projector should it be stolen.  
						

							Fine-tuning the Projector63
If you assign the projector a password, a screen appears requesting the 
password whenever the projector is turned on. If you enter the 
password incorrectly three times in succession, the projector’s 
operation is locked and you’ll need to disconnect the power cord, then 
reconnect it to redisplay the password screen. If you enter the 
incorrect password 30 times in succession, the projector is locked and 
you’ll need to contact Epson to unlock it. See “Where To Get Help” 
on page 91.
If someone else will be using the projector for awhile but you want to 
make sure that person returns it by a certain time, you can temporarily 
disable the password for a set period. When that time has elapsed, the 
password is reactivated and must be entered before the projector can 
be used.
When you enable the Operation Lock feature, all of the projector’s 
buttons are disabled except the P
 Power button.
Creating Your Own Screen Logo
You can transfer any image on your computer to the projector, and 
then use it as the startup screen and/or the screen that is displayed 
when you press the A/V Mute button. The image can be a company 
logo, slogan, photograph, or any other image you want to use. The 
projector considers this image the “User’s Logo.” 
Follow these steps to capture the image and transfer it to the projector:
1. Display the image you want to use on the projector. You can use 
an image from either a computer or video source, such as a VCR. 
2. Press the 
Menu button and select the Extended menu.
note
If you enable the password 
before you set one and you 
see the prompt to enter the 
password, enter the default 
password 0000 to proceed.
note
If the User’s Logo Protect 
option is ON, you see a 
message that the logo cannot 
be recorded. You’ll need to 
disable the 
User’s Logo 
Protect
 option before you 
can create or change the 
user’s logo. See page 65. 
						

							64Fine-tuning the Projector3. Use the  pointer button (or the down arrow button) and press 
Enter to select User’s Logo.
4. When you see a message asking if you want to use the present 
image as a user’s logo, select 
Yes and press Enter. A selection box 
displays over the image.
5. Use the  pointer button on the remote control or the arrow 
buttons on the projector to select the area of the image you want 
to use. Once you have selected the area, press 
Enter.
6. When you see the message 
Select this image?, choose Yes and 
press 
Enter. If you want to change the area selected, select No, 
press
 Enter and repeat steps 4 through 6. 
7. When you see this screen, select a zoom rate (display size), and 
then press 
Enter. 
8. When you see the message 
Save image as user’s logo?, select 
Yes and press Enter. Saving the logo takes a few seconds. Do not 
use the projector or other sources (computer, video, etc.) while 
the logo is being saved.
9. When you see the message 
Completed, press Esc.
10. To display the logo as the background screen when the A/V Mute 
button is press, select the 
Display menu and press Enter.
11. Select 
Background Color and press Enter. Then select Logo and 
press 
Enter.
12. When you’re finished, press 
Menu to exit the menus. 
note
The default setting for the 
Startup Screen option in 
the 
Display menu is ON. If 
the 
Startup Screen is set to 
OFF, the logo will not 
display at startup.
If the 
User’s Logo Protect 
option has been set to 
ON, 
the 
Background Color 
setting cannot be changed. 
You need to turn the protect 
function off first. See page 65 
for details.
Once you’ve saved a user’s 
logo, you cannot reset the logo 
setting to its factory default 
(no logo). 
						

							Fine-tuning the Projector65
Setting a Password 
1. Press the Freeze button on the remote control for about 5 seconds 
until you see the Password Protect menu:
2. Select 
Password and press Enter. You see the message Change 
the password?
 
3. Select 
Yes and press Enter.
4. Hold down the 
Num key on the remote control and use the 
numeric keypad to enter a 4-digit password. 
The password will be displayed as 
****. After you enter the last 
digit, a confirmation screen appears. Enter the password again.
5. After you finish setting the password, press the 
Esc button to 
return to the Password Protect menu.
Make a note of the password and keep it in a safe place in case you 
forget it. 
Turning On the Password and User’s Logo
1. To enable the password, press the Freeze button on the remote 
control for about 5 seconds until you see the Password Protect 
menu
2. Select 
Power ON Protect and press Enter. 
3. Select 
ON and press Enter. Then press Esc. 
note
If a password has already 
been set, you see the 
Password Protect Release 
screen. See “Starting the 
Projector with a Password” 
on page 66.
Use these buttons like a 
numeric keypad to enter 
the password
Hold down this button to 
activate the numeric 
keypad 
						

							66Fine-tuning the Projector4. If you want to disable the password temporarily, select 
Timer and 
press 
Enter. Then hold down the Num button while you use the 
numeric keypad to enter the number of hours (from 0 to 9999) 
that you want the password feature disabled. If you want the 
projector to request the password every time it is turned on, set 
the timer to 
0H. Press Enter when you’re done.
The countdown for the elapsed time begins as soon as you close 
the Password Protect menu. (You can check the elapsed time in 
this menu next to 
Time elapsed.)
5. To enable your screen logo, select 
User’s Logo Protect and press 
Enter. Select ON and press Enter. 
When this feature is on the logo appears whenever the projector is 
turned on (if the 
Startup Screen is enabled in the Extended 
menu; see page 59) and as the A/V Mute screen (if you selected 
the 
Logo as the Background Color in the Extended menu). 
None of the User’s Logo features can be changed when the User’s 
Logo Protect function is enabled.
6. Press 
Menu to close the Password Protect menu.
If you lose the remote control, you will not be able to enter the 
password, so keep the remote control in a safe place at all times. 
When the period defined in the 
Time-elapsed setting has passed, and 
the password is entered correctly, the elapsed time will be reset to 
0 
and the countdown will start again. Remember to disable or change 
this setting when you need to.
Starting the Projector with a Password
When the password function is enabled, you see this screen when you 
turn on the projector:
note
If you make a mistake 
entering the time, press the 
Esc button and enter the 
time again. 
						

							Fine-tuning the Projector67
Press down the Num button on the remote control as you use the 
numeric keypad buttons to enter the password. Once you have 
entered the password correctly, the password screen closes, and 
projection begins.
If the password is not correct, you see the message 
Wrong password. 
Please try again.
 If you enter an incorrect password three times in 
succession, you see the message 
The projector’s operation will be 
locked. Request code xxxxx
 and the projector switches to standby 
mode for approximately 5 minutes. Write down the request code. 
Then disconnect the projector’s power cord from the electrical outlet, 
reconnect it, and turn the projector back on. 
When you see the Password Protect Release screen again, you can try 
to enter the correct password.
If you have forgotten the password, contact Epson with the request 
code number that appears in the Password Protect Release screen for 
assistance. See “Where To Get Help” on page 91.
If you enter an incorrect password 30 times in succession, the 
projector remains locked and you must contact Epson to unlock it. 
Disabling the Projector’s Buttons
When you enable the Operation Lock function, all the projector’s 
buttons are disabled except for the P 
Power button.
1. Press the 
Menu button.
2. Select the 
Setting menu and press Enter.
3. Use the  pointer button (or up and down arrow buttons) to 
select 
Operation Lock and press the Enter button.
4. Select 
ON and press Enter.
5. Select 
Yes and press Enter to confirm the setting.
6. Press the 
Menu button.
note
To cancel Operation Lock, 
press the projector’s 
Enter 
button for seven seconds. 
						

							68Fine-tuning the Projector
Restoring the Default Settings
The Reset menu lets you return most projector menu settings to their 
default values. It also lets you reset the lamp hours to their inital 
default value; see page 75 for instructions on resetting the lamp timer.
To reset most projector menu settings, select 
Reset All and press the 
Enter button to display the confirmation screen. Select Yes to reset all 
the default settings or 
No to cancel.
note
The input signal, Video 
Signal, User’s Logo, and 
Language settings do not 
return to their defaults when 
you select 
Reset All. To reset 
the input signal or video 
signal, use the 
Reset option 
on the Signal menu; see 
page 55 for details. To reset 
the 
User’s Logo and 
Language settings, use 
the 
Reset option on the 
Extended menu; see page 59 
for details. 
						

							69
5
Maintaining and 
Transporting the Projector
Your projector needs little maintenance. All you need to do on a 
regular basis is keep the lens clean. Any dirt or smears on the lens may 
show up on your projected image. 
You also need to periodically clean the air filter and the air intake and 
exhaust vents. A clogged air filter or air vent can block ventilation 
needed to cool the projector and cause overheating. 
The only parts you should replace are the lamp and air filter. If any 
other part needs replacing, contact your dealer or a qualified servicer. 
This chapter covers the following:
■Cleaning the lens
■Cleaning the projector case
■Cleaning and replacing the air filter
■Replacing the lamp
■Resetting the lamp timer
■Transporting the projector
warning
Before you clean any 
part of the projector, 
turn it off and unplug 
the power cord. Never 
open any cover on the 
projector, except the 
lamp and filter covers. 
Dangerous electrical 
voltages in the projector 
can injure you severely. 
Do not try to service 
this product yourself, 
except as specifically 
explained in this User’s 
Guide. Refer all other 
servicing to qualified 
service personnel. 
						

							70Maintaining and Transporting the Projector
Cleaning the Lens
Clean the lens whenever you notice dirt or dust on the surface. 
■Use a canister of compressed air to remove dust. 
■To remove dirt or smears on the lens, use lens-cleaning paper. If 
necessary, moisten a soft cloth with lens cleaner and gently wipe 
the lens surface.
Cleaning the Projector Case 
Before you clean the case, first turn off the projector and unplug the 
power cord. 
■To remove dirt or dust, wipe the case with a soft, dry, lint-free 
cloth. 
■To remove stubborn dirt or stains, moisten a soft cloth with water 
and a mild detergent. Then wipe the case. 
■Do not use wax, alcohol, benzene, paint thinner, or other 
chemical detergents. These can damage the case.
caution
The lens is easily 
damaged. Do not use 
glass cleaner to clean 
the lens. Never rub 
the lens or use paper 
or rough material to 
clean it. Handle the 
projector carefully to 
avoid subjecting the 
lens to shocks.