Epson Powerlite 7700p Multimedia Projector Users Guide

							6
Solving Problems65
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
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							66Solving Problems
Using On-Screen Help 
If you see a No Signal message or your audio isn’t working, you can 
get help by pressing the blue 
? Help button on top of the projector or 
under the cover on the remote control. The following choices are 
available:

Help for the image
Tells you what to do if you see a No Signal message

Help for the sound
Tells you what to do when your audio isn’t working

Language selection
Lets you display the help information and projector menus in any 
of nine different languages
Follow these steps to get help:
1. Press the blue 
? Help button. You see the help menu.
2. Use the   up or   down arrow buttons on the control panel (or 
move the 
Enter button up or down on the remote control) to 
highlight one of the options. Then press the   or 
Enter button to 
select it.
3. Press the   or 
Enter button again to view the solutions. (Press 
Esc if you need to back up.)
4. Press the down arrow button on the control panel (or press down 
on the 
Enter button on the remote control) to display additional 
text.
5. To exit the Help system, press the blue
 ? Help button.
If none of the suggestions solves your problem, see additional 
solutions to problems in the following sections.
caution
Don’t hold the ? Help 
button for more than 
5 seconds, or the projector 
will enter the mode for 
resetting the lamp timer.
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							Solving Problems67
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.
The   power light is flashing orange and you cannot turn 
on the projector.
The lamp is cooling down. Wait until the light turns off and then 
press the 
Power button to turn on the projector.
The   power light does not come on.
Make sure the power cord is connected securely both at the power 
outlet and the projector.
The   lamp warning light is flashing red.
Replace the lamp as described on page 60. If you have just replaced 
the lamp, make sure the cover is securely fastened.
Computer
A/V mute
Resize Power
power light
lamp light
temperature light
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							68Solving Problems
The   temperature light is flashing orange.

The projector is getting too hot. Turn it off and let it cool. 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 59. 
The   temperature light is red.

The projector has overheated. Turn it off and 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 59. 

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.
Refer to the table below for a complete description of the projector’s 
status lights and their meaning: 
warning
Except as specifically 
explained in this 
User’s Guide, do not 
attempt to service this 
product yourself.
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 (nor should 
you unplug it) until the lamp stops flashing and remains orange. 
red Power is cut off because of an internal problem. Remove the power 
cord and contact EPSON for help.
flashing orange The lamp is almost burned out. This is a good time to replace it. See 
Chapter 5 for instructions.
flashing red The lamp is burned out. Replace it as described on page 60. If you 
have just replaced the lamp, make sure the cover is fastened securely.
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							Solving Problems69
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 
cover 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 43 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.
flashing orange The projector is getting too hot. Turn it off and let it cool. 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. 
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 59 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. Light Status Description
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							70Solving Problems
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 more than one computer and/or video source, 
you may need to press the 
Computer or Video button (on the 
control panel) or the 
Comp1, Comp2/YCbCr, or 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.

If you’ve connected a second computer or you’re using 
component video, make sure the 
BNC option in the Setting menu 
is correct. See page 52 for more information.

Make sure the Computer 1 selector switch on the projector’s 
interface panel is set to 
Analog (for standard computer video) or 
Digital (for a computer using DVI video). See page 12. 
If you’re using a PC laptop:

Press the function key that lets you display on an external 
monitor. It’s often labelled with an icon such as   but it may 
also be labelled 
CRT/LCD. You may have to hold down the Fn key 
while 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 to display on both at the same time. 
Allow a few seconds for the projector to sync up after pressing it. 

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.
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							Solving Problems71
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 
(1,600 
× 1,200), and the frequency is supported by the projector 
(see page 99). If necessary, change your computer’s resolution setting 
as described below. 
Only part of the computer image is displayed.

Press the Resize button on the control panel or remote control.

Make sure the image Position setting is correct on the Video 
menu. See page 44 for more information.

If the right or left side of the image is cut off, you may need to 
adjust the tracking using the buttons on the control panel. Hold 
down the + or – 
Tracking button to change the setting until the 
image looks correct.

Make sure your computer’s resolution setting is correct. Ideally, it 
should be 1024 
× 768 to match the projector’s native resolution. 
If this option isn’t available, select one of the other compatible 
video formats listed on page 99. 

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.
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							72Solving Problems
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. 
The image is blurry or poor.

There may be dirt or smears on the lens. Clean the lens as 
described on page 58.

Adjust the focus using the focus ring.

Adjust the settings on the Video menu (see page 44). When you 
change video settings, you should be able to see the effect on the 
screen immediately. If you don’t like the new settings, you can 
always select 
Reset to return to the factory default settings. 

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

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 LCD display.
The image is flickering or “noisy,” or you see vertical lines.
If you’re projecting from a computer, try pressing Auto on the remote 
control or 
Enter on the control panel. This resets the computer 
display settings automatically.
If that doesn’t work, you may need to adjust the 
Tracking and Sync 
settings manually using the buttons on the control panel. Hold down 
each button to change the setting until your image looks correct. It is 
best to project a gray screen (or the screen you see when you exit 
Windows) when you adjust these settings.
note
Images will be projected more 
vividly if you adjust the 
Tracking before the Sync.
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							Solving Problems73
The colors of the image are not right.

The color balance may be incorrect. If you’re displaying a 
computer image, use the 
Gamma option in the projector’s Video 
menu to adjust the balance of red, green, and blue. If you’re 
displaying video, adjust the 
Color, Tint, and Gamma settings on 
the Video menu. Also try adjusting the 
Color Setting option in 
the Advanced menu.

Check your computer display settings to correct the color balance.
There is no sound.

Try turning up the volume. Hold down the Shift button and 
press the right side of the 
Volume button (control panel) or press 
the right side of the
 Volume button (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 Computer or Video 
button on the control panel—or the 
Comp1, Comp2/YCbCr, or 
Video button on the remote control—to select the proper source.   
note
Because of the different 
technologies used, your 
projected image may not 
exactly match the colors on 
your laptop or computer 
monitor.
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							74Solving 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).
Power
Freeze
A/V MuteE-ZoomR/C ON
OFF
3
15
24
Enter
Esc
on/off 
switch
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