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...

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...

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...

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...

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...

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...

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...

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...

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...

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....