Epson Powerlite 720c Multimedia Projector Users Guide

Maintaining and Transporting the Projector55
5. Use a screwdriver to loosen the two screws holding the lamp in 
place. (You can’t remove the screws.) 
6. Hold the lamp by the top, as shown, and pull the lamp straight 
out. 
7. Gently insert the new lamp. 
8. Once the lamp is fully inserted, tighten its screws.
9. Replace the lamp cover.caution
Do not touch the glass 
portion of the lamp assembly. 
Touching the glass could 
result in premature lamp 
failure.
warning
This product includes a lamp 
component...

56Maintaining and Transporting the Projector
Resetting the Lamp Timer
You must reset the lamp timer after replacing the lamp to clear the 
LAMP REPLACE warning message. Follow the directions below to 
reset the lamp timer:
1. Press the 
Menu button. You see the main menu.
2. Use the directional buttons to highlight 
About. You see the 
following:
3. Press 
Enter to select the About menu.
4. Press 
Enter to select the Reset Lamp Timer option. You see the 
following:
5. Use the directional buttons to...

Maintaining and Transporting the Projector57
Transporting the Projector
The projector contains many glass and precision parts. If you need to 
transport it, please follow these packing guidelines to prevent damage 
to the projector: 
■When shipping the projector for repairs, use the original 
packaging material if possible. If you do not have the original 
packaging, use equivalent materials, placing plenty of cushioning 
around the projector.
■When transporting the projector as freight or checked...

58Maintaining and Transporting the Projector
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Solving Problems59
6
Solving Problems
This chapter helps you solve problems with your projector, and tells 
you how to contact technical support for problems you can’t solve 
yourself. This chapter explains the following:
■Using the projector’s on-screen help system
■What to do when the projector’s status lights flash
■Solving problems with the image or sound 
■Solving problems with the remote control
■Contacting technical support
720-730.book  Page 59  Thursday, October 30, 2003  11:32 AM 

60Solving Problems
Using On-Screen Help 
If the image doesn’t look right or your audio isn’t working, you can 
get help by pressing the green 
? Help button on top of the projector. 
The following choices are available:
■Help for the image
■Help for the sound
■Language selection
Follow these steps to get help:
1. Press the green 
? Help button on the projector. You see the help 
menu.
2. Press the left side of the 
Select (Keystone) button on the 
projector to highlight one of the options. Then press the...

Solving Problems61
What To Do When the Lights Flash
The lights on top of the projector indicate the projector’s status and 
let you know when a problem occurs.
If the projector is not working correctly, first turn it off and unplug it. 
Then plug the power cord back in and turn on the projector. If this 
does not solve the problem, check the status lights on top of the 
projector and try the solutions recommended below.
Status Lights
power light
warning light
Power
lightWarning
light Status Description...

62Solving Problems
Flashing orange Flashing orange 
(quickly)High 
temperature 
warningThe projector is too hot. Make sure the 
temperature surrounding the projector does 
not exceed 95
 °F and there is plenty of space 
around and under the projector for ventilation. 
Clean the air filter, if necessary. See page 53 
for instructions.
Green Flashing orange Lamp warning The lamp is almost burned out. This is a good 
time to replace it. See page 54 for instructions.
Orange Off Sleep  mode The projector is...

Solving Problems63
Solving Problems with the Image or 
Sound
No image appears on the screen.
■Check that the power light is green, not flashing, and the lens cap 
is off. 
■The projector may be in sleep mode. If the power light is orange, 
press the 
PPower button to turn the projector on.
■If the power was switched off and then on again, the projector 
may still be cooling down. Wait until the power light stops 
flashing and remains orange; then press the 
PPower button 
again.
■Make sure the Brightness...

64Solving Problems
If you’re using a PC laptop:
■Hold down the Fn key and press the function key that lets you 
display on an external monitor. It may have an icon such as 
, or it may be labelled 
CRT/LCD. Allow a few seconds for 
the projector to sync up after pressing it. Check your laptop’s 
manual or online help for details. 
On most systems, the   or 
CRT/LCD key lets you toggle 
between the LCD screen and the projector, or display on both at 
the same time. 
■Depending on your computer’s video...