Epson Projector Emp S4 User Manual

							50
Problems Solving
 Image is truncated (large) or small
Check
Remedy
Has the Aspect ratio
g been set 
correctly?
Press the [Resize] button on the remote control.
 sp.21
Is the image still being enlarged by the 
E-Zoom function?
Press the [Esc] button on the remote control to cancel the E-Zoom function. sp.23
Has the Position setting been adjusted 
correctly?
If analogue RGB images from a computer or RGB video images are being projected, press the [Auto] 
button on the remote control or the [Enter] button on the projectors control panel to carry out automatic 
adjustment.
If the images have not been correctly adjusted after using the automatic setup function, adjust the setting 
manually using the Position menu command.
If signals other than analogue RGB images from a computer or RGB video images are being input, adjust 
the setting manually using the Position menu command. Signal - Position sp.34
Has the computer been set for dual 
display?
If dual display has been activated in the Display Properties of the computers Control Panel, the projector 
will only project about half of the image on the computer screen. To display the whole of the image on 
the computer screen, turn off the dual display setting. sComputer video driver documentation
Has the correct resolution been selected?
Set the computer so that the signals that are output are compatible with this projector. 
List of Supported Monitor Displays sp.70 sComputer documentation
Only when projecting computer imagesOnly when projecting computer images 
						

							51
Problems Solving
 Image colours are not right
 Images appear dark
 Nothing appears on the external monitor
Check
Remedy
Do the input signal settings match the 
signals from the connected device?
If a composite video
g or S-Video
g source is connected to the projector, use the Video Signal menu 
command to select the video signal format.
Signal - Video Signal sp.34
Has the image brightness been adjusted 
correctly?
Use the Brightness menu command to adjust the brightness. Image - Brightness sp.33
Are the cables connected correctly?
Check that all of the cables required for projection are securely connected. sQuick Start Guide
Has the image contrast
g been adjusted 
correctly?
Use the Contrast menu command to adjust the contrast. Image - Contrast sp.33
Has the colour been adjusted correctly?
Use the Color Adjustment menu command to adjust the colour. Image - Color Adjustment sp.33
Have the colour saturation and tint been 
adjusted correctly?
Use the Color Saturation and Tint menu commands to adjust the colour and tint. Image - Color 
Saturation, Tint sp.33
Check
Remedy
Have the image brightness and luminance 
been adjusted correctly?
Use the Brightness and Brightness Control menu commands to adjust the brightness and luminance.
Image - Brightness sp.33 Settings - Brightness Control sp.35
Has the image contrast
g been adjusted 
correctly?
Use the Contrast menu command to adjust the contrast. Image - Contrast sp.33
Is the lamp due for replacement?
When the lamp is nearly due for replacement, the images will become darker and the colour quality will 
become poorer. When this happens, the lamp should be replaced with a new one. sp.59
Check
Remedy
Are images from a port other than the 
Computer port being projected?
The only images that can be displayed on an external monitor are those from the Computer port. You 
cannot output video equipment images to an external monitor. sp.63
Only when projecting images 
from a video source 
						

							52
Problems Solving
 Power does not turn on
 No sound can be heard or the sound is faint
Problems when projection starts
Check
Remedy
Have you pressed the [Power] button?
Press the [Power] button to turn the power on.
Are all of the indicators switched off?
The power cable is not connected correctly or power is not being supplied. Connect the power cable to 
the projector correctly. sQuick Start Guide
Alternatively, check the circuit breaker to see if power is being supplied.
Do the indicators turn off and on when the 
power cable is touched?
There is probably a poor contact in the power cable, or the power cable may be defective. Reinsert the 
power cable. If this does not solve the problem, stop using the projector, disconnect the power cable from 
the wall outlet and contact the nearest address provided in the International Warranty Conditions 
section of the Safety Instructions/World-Wide Warranty Terms booklet.
Other problems
Check
Remedy
Is the audio source connected correctly?
Check that the cable is connected to the Audio port.
Has the volume been adjusted to the 
minimum setting?
Adjust the volume so that sound can be heard. sp.17
Is A/V Mute mode active? 
Press the [A/V Mute] button on the remote control to cancel the A/V mute function. sp.20
Is the A/V mute slide still closed?
Open the A/V mute slide. 
						

							53
Problems Solving
 The remote control does not work
Check
Remedy
Is the remote control light-emitting area 
facing towards the remote control light-
receiving area when it is operated?
Face the remote control towards the remote control light-receiving area.
The operating angle for the remote control is approximately ±30º horizontally and approximately ±15º 
vertically. sQuick Start Guide
Is the remote control too far from the 
projector?
The operating range for the remote control is approximately 6m. sQuick Start Guide
Is direct sunlight or strong light from 
fluorescent lamps shining onto the 
remote control light-receiving area?
Set the projector up in a location where strong light will not shine onto the remote control light-receiving 
area.
Are the batteries dead, or have the 
batteries been inserted correctly?
Insert new batteries, while making sure that they are inserted the correct way around. sp.57
Has a remote control button been pressed 
for more than 30 seconds?
If any of the buttons on the remote control are pressed down for more than 30 seconds, the remote control 
stops sending signals (remote controls sleep mode) . The purpose of this is to prevent the batteries from 
being consumed due to something being placed on top of the remote control. 
When the button is released, normal remote control operation will resume. 
						

							AppendicesThis chapter provides information on maintenance procedures to ensure the best level of performance from the projector.Installation ........................................................... 55
 Setting Up the Projector ..................................................... 55
Maintenance ........................................................ 56
 Cleaning ............................................................................... 56 Cleaning the Projectors Surface ................................................ 56
 Cleaning the Lens ...................................................................... 56
 Cleaning the Air Filter and Air Intake Vents ............................. 56 Replacing Consumables...................................................... 57 Replacing the batteries............................................................... 57
 Lamp Replacement Period......................................................... 58
 Replacing the Lamp ................................................................... 59
 Resetting the Lamp Operating Time.......................................... 61
 Replacing the Air Filter ............................................................. 62
Checking Projected Images on an External 
Monitor (Monitor Output) ................................... 63
Optional Accessories and Consumables ......... 64
 Optional Accessories ................................................................. 64
 Consumables .............................................................................. 64
Screen Size and Projection Distance ................ 65
Glossary ............................................................... 66
List of ESC/VP21 Commands............................. 68
 Command List .................................................................... 68
 Cable Layouts ..................................................................... 68 USB connection.......................................................................... 68 USB Connection Setup ....................................................... 69
List of Supported Monitor Displays .................. 70
 Computer/RGB Video ................................................................70
 Component Video/RGB Video ...................................................70
 Composite Video/S-Video .......................................................... 70
Specifications ...................................................... 71
 Angle of tilt ................................................................................71
Appearance.......................................................... 72
Index ..................................................................... 73 
						

							55
InstallationSetting Up the Projector
The projector supports the following four different projection methods, 
allowing you to choose the best method for displaying your images.
 For ceiling mount installation (suspending from the 
ceiling), a special installation procedure is required. 
Failure to install correctly may result in injury or 
damage if the projector falls.
 Do not set this projector up on its side to carry out 
projection,otherwise malfunctions may occur.
 If you use adhesives on the ceiling mount to prevent 
the screws from loosening, or you use lubricants, oils 
and so on, the casing may crack and the projector may 
fall causing serious injury and serious damage to the 
projector. When installing or adjusting the ceiling 
mount, do not use adhesives to prevent the screws from 
loosening and do not use oils or lubricants and so on.
Front projection (Front projection)
Rear projection using a translucent screen (Rear projection)
 The optional ceiling mount is required when installing 
the projector on a ceiling. sp.64
 When using ceiling projection or projection using a 
translucent screen, set the Projection command in 
the Extended menu to match the installation method. 
sp.36
Front/ceiling projection (Front/Ceiling projection)
Rear/ceiling projection using a translucent screen 
(Rear/Ceiling projection) 
						

							56
MaintenanceThis section describes maintenance tasks such as cleaning the projector and 
replacing consumable parts.Cleaning
You should clean the projector if it becomes dirty or if the quality of 
projected images starts to deteriorate.
Clean the projectors surface by wiping it gently with a soft cloth.
If the projector is particularly dirty, moisten the cloth with water 
containing a small amount of neutral detergent, and then firmly wring the 
cloth dry before using it to wipe the projectors surface. Then wipe it again 
with a soft, dry cloth.
Use a commercially-available air blower, or use a lens cleaning paper to 
gently wipe the lens.If dust collects on the air filter or the air intake vents, it can cause the 
internal temperature of the projector to rise, and this can lead to problems 
with operation and shortening of the optical engines service life.
It is recommended that you clean these parts at least once every three 
months. Clean them more often than this if using the projector in 
particularly dusty environments.Cleaning the Projectors Surface
Do not use volatile substances such as wax, alcohol or 
thinner to clean the projectors surface. These can 
cause the projector to warp and make the coating finish 
peel off.
Cleaning the Lens
Do not rub the lens with harsh materials or subject the 
lens to shocks, as it can easily become damaged.
Cleaning the Air Filter and Air Intake Vents
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 Replacing 
the Air Filter. sp.62 
						

							57
MaintenanceReplacing Consumables
This section explains how to replace the remote control batteries, the lamp, 
and the air filters.
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 
batteries are becoming flat. Replace the batteries. Have two spare AAA-
size alkali batteries ready to use when required.PROCEDUREA
Remove the battery cover.
While pushing the catch of the battery compartment cover, lift 
the cover up. 
B
Insert the batteries.
Check the positions of the (+) and (–) marks inside the battery 
holder to ensure that the batteries are inserted the correct way.
C
Replace the battery cover.
Press the battery compartment cover until it clicks into place.
Replacing the batteries
Catch 
						

							58
Maintenance
It is time to replace the lamp when:
The message Replace the Lamp. appears on the screen when 
projection star ts
When the Lamp indicator is flashing orange
The projected image gets darker or starts to deteriorate
Lamp Replacement Period
A message will be displayed.
Flashing orange
 The lamp replacement message is set to appear after the 
following periods of time in order to maintain the initial 
brightness and quality of the projected images. 
Brightness Control sp.35
· When used continuously at high brightness: Approx. 
1900 hours
· When used continuously at low brightness: Approx. 
2900 hours
 If you continue to use the lamp after this period, the 
possibility of the lamp breaking becomes greater. When 
the lamp replacement message appears, replace the 
lamp with a new one as soon as possible, even if it is still 
working.
 Depending on the characteristics of the lamp and on 
the way it has been used, the lamp may become darker 
or stop working before the lamp warning message 
appears. You should always have a spare lamp ready in 
case it is needed.
 Contact your dealer for a spare lamp. 
						

							59
Maintenance
PROCEDUREA
After you turn off the projector’s power, and the 
confirmation buzzer beeps twice, disconnect the 
power cable.
B
Wait until the lamp has cooled down, then remove the 
lamp cover from the base of the projector.
Loosen the lamp cover fixing screw with the screwdriver that is 
supplied with the spare lamp (or your own cross head 
screwdriver).
Then slide the lamp cover straight forward and lift it to remove.
Replacing the Lamp
 When replacing the lamp because it has stopped 
illuminating, there is a possibility that the lamp may be 
broken.
If replacing the lamp of a projector which has been 
installed on the ceiling, you should always assume that 
the lamp is broken, and you should stand to the side of 
the lamp cover, not underneath it. Remove the lamp 
cover gently. Small pieces of glass may fall out when 
the lamp cover is opened. If pieces of glass get into 
your eyes or mouth, seek medical advice immediately.
 Wait until the lamp has cooled down sufficiently before 
removing the lamp cover. If the lamp is still hot, burns 
or other injuries may result. It takes about one hour 
after the power has been turned off for the lamp to be 
cool enough.