Epson Powerlite 715c Multimedia Projector Users Guide

							92Solving Problems
The   temperature light is flashing orange.

The projector is in a high-temperature cooling cycle. Make sure 
the room temperature does not exceed 104 °F and there is plenty 
of space around and under the projector for ventilation. 

The air filter may be clogged. Clean or replace it as described on 
page 85. 
The   temperature light is red.

The projector has overheated and turned off. Let the projector 
cool for a few minutes, then turn it back on. Make sure the room 
temperature is not above 104 °F and there is plenty of space 
around and under the projector for ventilation. 

The air filter may be clogged. Clean or replace it as described on 
page 85. 

If the projector continues to overheat after you clean the air filter, 
the problem may be caused by damage to the cooling fan or 
internal circuits. Contact EPSON for help.
warning
Except as specifically 
explained in this 
User’s Guide, do not 
attempt to service this 
product yourself. 
						

							Solving Problems93
Refer to the following table for a complete description of the 
projector’s status lights and their meaning:
Status lights
Light Status Description
orange The projector is in sleep mode. You can unplug it or press the Power 
button to turn it on.
flashing green The projector is warming up. Wait for the image to appear.
green The projector is operating normally.
flashing orange The projector is cooling down. You can’t turn it back on (and you 
should not unplug it) until the light stops flashing and remains orange. 
flashing red Power is cut off because of an internal problem. Remove the power 
cord and contact EPSON for help.
red The lamp is burned out. Replace it as described on page 86.
flashing orange The lamp is almost burned out. This is a good time to replace it. See 
page 86 for instructions.
flashing red There is a problem with the lamp. If necessary, replace the lamp as 
described on page 86.
flashing orange The projector is in a high-temperature cooling cycle. Make sure the 
temperature surrounding the projector does not exceed 104 
°F and 
there is plenty of space around and under the projector for ventilation. 
Clean the air filter if necessary. See page 85 for instructions.
red The projector has overheated and turned itself off. Let it cool for a few 
minutes, then turn it back on. Make sure there is plenty of space 
around and under the projector for ventilation. If it continues to 
overheat, you may need to change the air filter. See page 85 for 
instructions.
flashing red There is a problem with the cooling fan or temperature sensor. Turn 
off the projector and unplug it. Contact EPSON for help. 
						

							94Solving Problems
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 
Power 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 
Power button again.

Make sure the Brightness setting on the Video menu is correct. 
See page 73 for more information. Try selecting the 
Reset All 
setting to return all setup menus to their default values. 

Press the A/V Mute button to make sure the picture has not been 
turned off temporarily. 

The attached computer may be in sleep mode or displaying a 
black screen saver. Try pressing a key on the computer.
You see a blue screen with the message No Signal 
displayed.

Make sure the cables are connected correctly, as described in 
Chapter 1 or Appendix A.

Try restarting your computer.

If you’ve connected a computer and one or more video sources, 
you may need to press the 
Source button (on the projector) or 
the 
Comp, Video, or S-Video button (on the remote control) to 
select the correct source. Allow a few seconds for the projector to 
sync up after pressing the button. 
						

							Solving Problems95
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   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 card, you might need to use 
the Display utility in the Control Panel to make sure that both the 
LCD screen and external monitor port are enabled. See your 
computer’s documentation or online help for details.
If you’re using a PowerBook:
1. From the Apple menu, select 
Control Panels, then click 
Monitors and Sound.
2. Click the Arrange icon.
3. Drag one monitor icon on top of the other. This lets you 
display on the projector screen as well as the LCD screen.
4. If this option isn’t available, click the 
Monitor icon. 
5. Select one of the listed 
Simulscan resolutions. (Allow a few 
seconds for the projector to sync up after making the 
selection.)
The message Not Supported is displayed.
Make sure your computer’s resolution doesn’t exceed UXGA 
(1600 
× 1200, for the PowerLite 715c) or SXGA (1280 × 1024, for the 
PowerLite 505c), and the frequency is supported by the projector 
(see page 124). If necessary, change your computer’s resolution setting 
as described on page 96.  
						

							96Solving Problems
Only part of the computer image is displayed.

Press the Resize button on the remote control.

Make sure the image Position setting is correct on the Video 
menu. See page 73 for more information.

Make sure the Input Signal setting is correct on the Video menu. 
See page 74 for more information.

Make sure your computer’s resolution setting is correct. Ideally, it 
should be 1024 
× 768 to match the projector’s native resolution 
(800 
× 600 on the PowerLite 505c). If this option isn’t available, 
select one of the other compatible video formats listed on 
page 124. 

Windows:
Right-click the desktop, select 
Properties, click the Settings 
tab, and use the dialog box to select a different resolution. 

Macintosh:
On the Apple menu, choose 
Control Panels, then click 
Monitors and Sound. Select a different resolution. 

You also may need to modify existing presentation files if you 
created them for a different resolution. See your software 
documentation for specific information.
The image isn’t square, but trapezoid-shaped.

Make sure the projector isn’t placed off to one side of the screen, 
at an angle, or the image won’t be square. Place the projector 
directly in front of the center of the screen, facing the screen 
squarely.

If you’ve tilted the projector upward by extending the legs, the 
image will be broader at the top. Hold down the 
+ or – side of the 
Keystone button on top of the projector until the image is 
square.  
						

							Solving Problems97
The image contains static or noise.

If you’re using a computer cable longer than 6 feet, or an 
extension cable, the image quality may be reduced.

Keep your computer and video cables separated from the power 
cord as much as possible to prevent interference.

The video signal may be split between the computer and the 
projector. If you notice a decline in the projected image quality 
when the image is displayed simultaneously on your laptop 
computer and the projector, turn off the laptop’s LCD display.
The image is blurry.

There may be dirt or smears on the lens. Clean the lens as 
described on page 84.

Make sure the lens is fully extended.

Adjust the focus using the focus ring.

Make sure the lens is not fogged by condensation. You may need 
to wait before using the projector after moving it from a cold 
environment.

Adjust the Sharpness setting on the Video menu (see page 73). 
When you change video settings, you should be able to see the 
effect on the screen immediately. If you’re projecting from a 
computer, you may also need to adjust the Tracking and Sync as 
described in the next section. If you don’t like the new settings, 
you can always select 
Reset to return to the factory default 
settings.  
						

							98Solving Problems
You see vertical stripes or the image still looks blurry after 
trying the solutions in the previous section.

If you’re projecting from a computer and displaying an image that 
contains a lot of fine detail, you may notice one or more vertical 
stripes or bands, or some of the characters may look heavy or 
blurred. Press the 
Auto button on the remote control. This resets 
the projector’s tracking and sync settings.

If further adjustment is needed, you can fine-tune the Tracking 
and 
Sync settings manually using the Video menu as described 
on page 73. 
1. Fill the screen with an image containing fine detail when 
making these adjustments. For example, in Windows you can 
select a pattern to appear as your desktop background. If this 
option isn’t available, try projecting black text on a white 
background.
2. Adjust the 
Tracking to eliminate vertical stripes. 
3. Adjust the 
Sync to increase the sharpness of the image.
The colors of the image are not right.

If you’re displaying a computer image, use the Gamma option in 
the projector’s Video menu to select 
Dynamic or Natural 
coloring. If you’re displaying video, adjust the 
Color, Tint, and 
Gamma settings on the Video menu. 

Try adjusting the Color Setting option on the Advanced menu.

Make sure the Input Signal setting is correct on the Video menu. 
See page 74 for more information.

Check your computer display settings to correct the color balance.
note
Because of the different 
technologies used, your 
projected image may not 
exactly match the colors on 
your laptop or computer 
monitor. 
						

							Solving Problems99
There is no sound.

Try turning up the volume. Press the right side of the Volume 
button on the remote control.

If you’re using a VCR or other video source, make sure the 
volume is not turned all the way down or muted. Also, make sure 
the cables are connected correctly, as described in Chapter 1.

If your presentation includes computer audio, make sure the 
volume control on your computer is not turned all the way down 
or muted. Make sure the audio cable is securely connected to both 
the projector and your computer’s   headphone jack or   
audio out jack. See page 14 (for laptops) or Appendix A (for other 
systems).

Make sure the Windows volume controls on your computer are 
not turned all the way down or set to Mute. You may be able to 
check this by right-clicking the sound icon on your Windows 
desktop. 

Make sure the A/V Mute button is not enabled.

The wrong source may be selected. Press the Source button on 
the projector—or the 
Comp, Video, or S-Video button on the 
remote control—to select the correct source.    
						

							100Solving Problems
Solving Problems with the Remote 
Control
The projector doesn’t respond to remote control commands.

Make sure the remote control is turned on. 

Make sure you are within 30 feet of the projector, and within 
range of the projector’s front or back sensor (approximately 30° to 
left or right and 15° above or below).

The remote control batteries may not be installed correctly or may 
be low on power. To test the batteries, press the  light button. 
The other buttons on the remote should light up temporarily. If 
they don’t, you need to change the batteries as described on 
page 30.

Dim the room lights and turn off any fluorescents. Make sure the 
projector is not in direct sunlight. Strong lighting, especially 
fluorescent lights, may affect the projector’s infrared receivers.

Turn off any nearby equipment that emits infrared energy, such 
as a radiant room heater.
You can’t control the mouse pointer with the remote 
control.

Make sure the mouse cable is securely connected to both your 
computer’s mouse port or USB port and the projector’s mouse 
port. For details, see page 13 (for laptops) or Appendix A (for 
other systems).

To use the USB mouse connection on a PC, your system must 
have a “clean” installation of Windows 98 (SR2), Windows Me, 
or Windows 2000. The connection may not work correctly if 
your system was upgraded from Windows 95.
USB support requires OS9 or higher on a Macintosh.
Power
Freeze
A/V MuteE-ZoomR/C ON
OFF
3
15
24
Enter
Esc
on/off 
switch 
						

							Solving Problems101
Solving EasyMP Problems 
An image displayed with EasyMP appears distorted.
Because of their resolution, some JPEG images cannot be displayed 
correctly. Some JPEG files from digital cameras cannot be previewed. 
Files with a high compression ratio may appear blurry.
In EMP SlideMaker, some PowerPoint files don’t appear in 
the file window.
EMP SlideMaker does not support PowerPoint 95. Files created in 
this version of PowerPoint must be opened and resaved in PowerPoint 
97 or later.
In EMP SlideMaker, your PowerPoint files don’t display 
thumbnails and can’t be pasted into scenarios.
If you use PowerPoint 97, make sure the MS Office JPEG converter 
has been installed. Run the Office 97 installer, display the 
Converters 
and Filters
 option, and install the JPEG filter. 
You can’t edit scenario files in EMP SlideMaker after they 
have been transferred to the memory card.
When scenario files are transferred, they are converted to the .SIT 
format. You can only edit scenarios before they are transferred (in the 
.SIC format).
You can’t access the memory card in the projector through 
the USB cable.

To use the USB connection, your system must have a “clean” 
installation of Windows 98 (SR2), Windows Me, or Windows 
2000. The connection may not work correctly if your system was 
upgraded from Windows 95.

Make sure the projector is not accessing the memory card.