Epson Projector Ex21 User Manual

							Maintaining the Projector61
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. 
						

							62Maintaining 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. 
						

							Maintaining the Projector63
2. Select the Reset menu and press Enter. You see this screen:
3. Select 
Reset Lamp Hours and press Enter. 
4. When you see the prompt, select
 Yes and press Enter.
5. When you’re finished, press 
Menu to exit.
Checking Lamp Usage 
To check the number of hours the lamp has been used, press the 
Menu button and highlight the Info menu. You see a screen like this:
The life span of the lamp is about 3000 hours if the 
Brightness 
Control
 setting in the Settings menu is set to High (default), and 
4000 hours if the 
Brightness Control setting is set to Low. Make 
sure you have a spare lamp handy if the usage hours on this menu are 
close to the life span of your lamp.
note
The information displayed 
depends on the input signal 
currently selected.
If you have used the 
projector for less than 
10 hours, the hours are 
listed as 0H. 
						

							64Maintaining the Projector
Replacing the Remote Control Batteries
Replace the batteries in the remote control as described below: 
1. Turn the remote control over.
2. Press in on the catch on the battery cover as you lift the cover off.
3. Install two AA alkaline batteries, inserting the 
+and– ends as 
shown.
4. Replace the battery cover and press it down until it clicks into 
place.
caution
When replacing batteries, 
take the following 
precautions:
■Replace the batteries as 
soon as they run out. If the 
batteries leak, wipe away 
battery fluid with a soft 
cloth. If fluid gets on your 
hands, wash immediately.
■Do not expose batteries to 
heat or flame.
■Dispose of used batteries 
according to local 
regulations.
■Do not use batteries other 
than those specified in this 
User’s Guide and do not 
use batteries of different 
types or mix old and new 
batteries.
■Keep these batteries out of 
the reach of children. 
Batteries are choking 
hazards and are very 
dangerous if swallowed. 
						

							Maintaining the Projector65
Transporting the Projector
The projector contains many glass and precision parts. When 
hand-carrying the projector, consider using an optional carrying case, 
available as an accessory from Epson (see page 11.).
Follow these guidelines to prevent damage when transporting it: 
■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 a long distance, first place it in a 
hard-shell shipping case, then pack it in a firm box with 
cushioning around the case. 
■Close the A/V Mute slide (lens cover).
■Return the projector feet to their stored (highest) positions.
note
Epson shall not be liable for 
any damages incurred 
during transportation. 
						

							66Maintaining the Projector 
						

							67
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. The following information is included:
■Using the projector’s on-screen help system
■What to do when the projector’s status lights flash
■Solving projector operation problems
■Solving problems with the image or sound
■Solving problems with the remote control
■Contacting technical support 
						

							68Solving 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 
? Help button on the projector or the remote 
control.
1. Press the 
? Help button on the remote control or on the 
projector. 
You see the Help menu:
2. Use the arrow buttons on the remote control or the projector to 
highlight menu items.
3. Press the 
Enter button on the remote control or the projector to 
select the menu item and read the solutions. 
4. To exit the help system, press the 
? Help button.
If none of the suggestions solve your problem, see additional solutions 
to problems in the following sections. 
						

							Solving Problems69
Checking Projector Status
If your projector isn’t working correctly, first turn it off and unplug it. 
Then plug the power cord back in and turn on the projector. If this 
doesn’t solve the problem, check the lights on top of the projector.
What To Do When the Lights Flash
The lights on top of the projector indicate the projector’s status.
Refer to the following tables for a complete description of the 
projector’s status lights:
Temperature 
lightLamp light Power light
Power light status
P
Power light status Description
Flashing green The projector is warming up. Wait for the image to appear.
Green The projector is operating normally.
Orange The projector is in sleep or standby mode. You can unplug it or press the 
Ppower button to turn it on.
Red, flashing red, or 
orangeThere is a problem with the projector. Check the next table to diagnose the 
problem.  
						

							70Solving Problems Error light(s) status
Error light(s) status Description
PGreen or orange
Flashing orange
OffIt’s time to replace the lamp. See page 60 for instructions. If you continue 
to use the lamp after the replacement warning, there is an increased 
possibility that the lamp may break.
PRed
Off
Flashing orangeRapid cooling is in progress. Although this is not an abnormal condition, 
projection will stop automatically if the temperature rises higher. Make sure 
there is plenty of space around and under the projector for ventilation, and 
that the air filter and vents are clean.
PRed
Off
RedThe projector is overheating, which turns the lamp off automatically. 
Wait until the projector switches to standby mode (about 5 minutes). Make 
sure there is plenty of space around and under the projector for ventilation. 
The air filter may be clogged. Clean or replace the air filter as described on 
pages 58 to 59.
If you’re using the projector above an altitude of 4,900 feet (1,500 meters), 
turn on High Altitude Mode in the Operation menu (see page 50).
If the projector continues to overheat after you clean the air filter, stop 
using the projector, disconnect the power cord, and contact Epson for help 
as described on page 78.
Warning: Except as specifically explained in this User’s Guide, do not 
attempt to service this product yourself.
PFlashing red
Off
Flashing redThe projector has an internal problem. Stop using the projector, disconnect 
the power cord, and contact Epson for help, as described on page 78.
PRed
Off
Flashing redThere is a problem with the fan or temperature sensor. Stop using the 
projector, disconnect the power cord, and contact Epson as described on 
page 78.
PRed
Flashing red
OffThe lamp may be burnt out. First make sure the lamp cover is securely 
installed. If that’s not the problem, the air filter may be clogged. Clean or 
replace the air filter as described on pages 58 to 59.
If this does not resolve the problem, let the lamp cool and then remove it. If 
the lamp is cracked, replace it as described on page 60. If the lamp is not 
cracked, reinstall it. If reinstalling doesn’t work, replace the lamp.
If you’re using the projector above an altitude of 4,900 feet (1,500 meters), 
turn on High Altitude Mode in the Operation menu (see page 50).
If none of these suggestions resolves the problem, contact Epson as 
described on page 78.