Epson Powerlite 78 Multimedia Projector Users Guide

							Fine-Tuning the Projector71
4. Use the arrow buttons to select the area of the image you want to 
use. Then press 
Enter.
5. When you see the message 
Select this image?, highlight Yes 
and press 
Enter. 
6. Use the arrow buttons to select a zoom factor (display size) and 
press 
Enter.
7. When the message 
Save this image as the User’s Logo? 
appears, select 
Yes and press Enter. Saving the logo may take a 
few moments. Do not use your projector, remote control, or 
video source while the logo is being saved.
8. When you see the message 
Completed, press Menu to exit. 
Choosing When to Display the Image
After your image is saved, you can set it to display as the startup 
screen, the screen you see when there’s no signal, or the screen you see 
when you press the 
A/V Mute button (see page 50).
1. Press the 
Menu button, highlight the Extended menu, and press 
Enter. 
2. Select 
Display and press Enter.
3. Choose from these display options:
■Set Display Background to Logo to display your image 
when there is no signal. 
■Set Startup Screen to On to display your image when the 
projector is warming up. 
■Set A/V Mute to Logo to display your image when you press 
the 
A/V Mute button. 
4. When you’re finished, press
 Menu to exit. 
note
You can lock these settings to 
prevent them from being 
changed without a password 
(see page 68).  
						

							72Fine-Tuning the Projector
Disabling the Projector’s Buttons
When you enable the Control Panel Lock function, you can lock all of 
the projector’s buttons, or all of the buttons except the Ppower 
button. The remote control can still be used to operate the projector.
1. Press the 
Menu button, highlight the Settings menu, and press 
Enter.
2. Select 
Control Panel Lock and press the Enter button.
3. Select 
Full Lock (to lock all projector buttons) or Partial Lock (to 
lock all buttons except the Ppower button) and press 
Enter.
4. Select 
Yes and press Enter to confirm the setting.
5. Press the 
Menu button to exit. 
To disable the Control Panel Lock function, select 
Off in the Control 
Panel Lock menu. Or press and hold the 
Enter button on the 
projector’s control panel for seven seconds. A message is displayed and 
the lock is released.
Using Security Locking
The projector includes two security locking points to prevent its theft 
when installed or used in public locations:  
						

							Fine-Tuning the Projector73
■Security cable attachment. You can attach a commercially 
available security cable as shown below to secure the projector to a 
table or ceiling mount.
■Kensington security slot. The security slot (located on the side 
of the projector) is compatible with the MicroSaver security 
systems manufactured by Kensington. You can purchase this lock 
from Epson (see page 12).
Security cable 
attachmentKensington 
security slot 
						

							74Fine-Tuning the Projector 
						

							5
75
5
Maintaining the Projector
Your projector needs little maintenance. All you have to do on a 
regular basis is clean the lens, and check that the air filter and vents are 
clean. A clogged air filter or vent can block ventilation needed to cool 
the projector.
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 the air filter
■Replacing the air filter
■Replacing the lamp
■Replacing the remote control batteries
■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 
cover. 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. 
						

							76Maintaining the Projector
Cleaning the Lens
Clean the lens whenever you notice dirt or dust on the surface.
To remove dirt or smears on the lens, use a commercially available 
cloth for cleaning glasses.
Cleaning the Projector Case
Before cleaning, 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 neutral detergent and firmly wring the cloth dry. Then wipe 
the case.
Cleaning the Air Filter 
Your projector includes an air filter to ensure the best performance. If 
dust collects on the air filter, clean it as described here. Dust clogs 
prevent proper ventilation and can cause overheating, which can 
damage the projector.
1. Turn off the projector and unplug the power cord.
2. Remove dust from the air filter using a small vacuum cleaner 
designed for computer or office equipment, or gently clean the 
vent with a soft brush (such as an artist’s paintbrush).
caution
Do not rub the lens with 
harsh materials or subject 
the lens to shocks, or you 
may damage it.
Do not use wax, alcohol, 
benzene, paint thinner, or 
other chemical detergents. 
These can damage the case.
note
To order replacement air 
filters, request part number 
V13H134A13. See page 12 
for ordering information. 
						

							Maintaining the Projector77
You can remove the air filter to clean both sides
If the filter is too dirty or broken, replace the filter as described below. 
Replacing the Air Filter
You need to replace the air filter if:
■You cannot remove the dust from it
■The air filter is damaged or torn
■You repeatedly see a projected message telling you to clean or 
replace it
Contact your dealer or call Epson at 800-GO-EPSON 
(800-463-7766) to obtain a new air filter. Request part number 
V13H134A13.
1. Turn off the projector and unplug the power cord.
2. Slide the air filter out of its slot as shown.
3. Slide the new air filter into the slot until it clicks into place.
note
Air filters contain 
polycarbonate, ABS resin, 
and polyurethane foam. 
Dispose of used air filters 
according to local 
regulations. 
						

							78Maintaining the Projector
Replacing the Lamp
The life span of the projection lamp is about 3000 hours if 
Brightness Control in the Settings menu is set to High (default), and 
4000 hours if 
Brightness Control is set to Low. See page 81 to check 
the lamp usage.
It is time to replace the lamp when: 
■The projected image gets darker or starts to deteriorate.
■The message Replace the lamp appears on the screen and the 
Lamp light flashes orange. To maintain projector brightness 
and image quality, replace the lamp as soon as possible.
You may also need to replace the lamp if the 
Lamp light flashes or 
stays on red. See page 87.
Contact your dealer or call Epson at 800-GO-EPSON 
(800-463-7766). Request part number V13H010L41.
Follow these steps to replace the lamp:
1. Turn off the projector and, after the projector beeps twice, unplug 
the power cord.
2. Let the projector cool for at least an hour (if it has been on). The 
lamp is extremely hot immediately after use. 
note
Turn off this product when 
not in use to prolong the life 
of the projector. 
Lamp light
warning
Let the lamp cool fully 
before replacing it. 
In the unlikely event that 
the lamp has broken, small 
glass fragments may be 
present and should be 
removed carefully to avoid 
injury. If the projector has 
been installed on the ceiling, 
you should stand to the side 
of the lamp cover, not 
underneath it.
If the lamp is used after the 
replacement period has 
passed, the possibility that 
the lamp may break 
increases. When a lamp 
replacement message 
appears, replace the lamp 
with a new one as soon as 
possible, even if it is still 
working. 
						

							Maintaining the Projector79
3. Loosen the lamp cover screw (you cannot remove it). Then slide 
the lamp cover off.
4. Loosen the two screws holding the lamp in place (you can’t 
remove them).
5. Hold the lamp as shown and pull it straight out.
 
Loosen, but don’t 
remove these screws
note
The lamp(s) in this 
product contain mercury. 
Please consult your state and 
local regulations regarding 
disposal or recycling. Do not 
put in the trash. 
						

							80Maintaining the Projector6. Gently insert the new lamp. (If it doesn’t fit easily, make sure it is 
facing the right way.) Then tighten its screws.
7. Replace the lamp cover, then tighten its screw.
8. Reset the lamp timer as described in the next section. 
Resetting the Lamp Timer
After you replace the lamp, you need to reset the lamp timer using the 
projector’s menu system. 
1. Press the 
Menu button on the remote control or on the 
projector’s control panel. You see the main menu.
note
Tighten the lamp cover 
securely so you do not receive 
a lamp cover error when you 
turn the projector back on.