Epson Powerlite 77c Multimedia Projector Users Guide

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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. 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 password problems
■Solving problems with the remote control
■Contacting technical support 

82Solving 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 remote 
control. 
Follow these steps to get help:
1. Press the 
? Help button on the remote control or projector. You 
see the help menu.
2. Use the up and down arrow buttons on the projector or remote 
control to highlight the problem you want to solve. Then press 
the 
Enter button to view the solution(s). 
Remote controlProjector 

Solving Problems83
3. Highlight a solution (if this choice is available). Then press the 
Enter button to select the solution. 
Press the 
Esc button if you need to back up.
If the solution is to adjust one of the settings, use left and right 
arrow buttons on the projector or remote control to adjust it. 
4. To exit the Help system, press the 
? Help button.
If none of the suggestions solves your problem, see additional 
solutions to problems in the following sections.
What To Do When the Lights Flash...

84Solving Problems
Power
lightLamp
lightTemperature 
light Description
Flashing 
redFlashing 
red Flashing red  There is an internal error in the projector. Turn the projector 
off and unplug it. Contact Epson for help. See page 93.
Red Off Flashing red There is a problem with the fan or a sensor. Turn the 
projector off and unplug it. Contact Epson for help. See 
page 93.
— Flashing 
orangeOff Replace the lamp with a new one as soon as possible; see 
page 76 for instructions. If you continue to use the...

Solving Problems85
Solving Problems with the Image or 
Sound
No image appears on the screen.
■Check that the power light is green, not flashing, and the A/V 
Mute
 slide is open. 
■If the projector doesn’t turn on, the Operation Lock may be 
enabled. Press and hold the 
Enter button on the projector for 
7 seconds to release the lock.
■The projector may be in standby or sleep mode. If the projector 
has not received any input signal for 30 minutes, it turns off the 
lamp to conserve the lamp life and...

86Solving Problems
Nothing appears on the external monitor.
■Make sure the VGA computer cable is connected to your 
computer’s video port and the projector’s 
Computer 
(Component Video)
 port. 
■Make sure the cable from your monitor is connected to the 
projector’s 
Monitor Out port.
You see a blue screen with the message No Signal displayed.
■Make sure the cables are connected correctly, as described in 
Chapter 1.
■Make sure the power to your computer or video source is 
turned on.
■If you’ve...

Solving Problems87
If you’re using a PowerBook or iBook with 
Macintosh OS X:
1. From the Apple menu, select System Preferences, then click 
Display or Displays.
2. Select 
VGA Display or Color LCD, click Arrange or 
Arrangement, then put a checkmark in Mirror Displays.
The message Not Supported is displayed.
■Make sure your computer’s resolution doesn’t exceed XGA (for 
the PowerLite 77c) or SVGA (for the PowerLite S5 Series) and 
the frequency is supported by the projector. See page 98. If 
necessary,...

88Solving Problems
■Make sure your computer’s resolution setting is correct and dual 
display is not activated. Ideally, the resolution should be 
1024 × 768 (for the PowerLite 77c) or 800 × 600 (for the 
PowerLite S5 Series) to match the projector’s native resolution. If 
this option isn’t available, select one of the other compatible video 
formats listed on page 98. 
■Windows:
Right-click the desktop, select 
Properties, click the Settings 
tab, and select a different resolution. 
■Macintosh OS X:
On...

Solving Problems89
■If you’re projecting from a composite or S-Video source, check 
the 
Video Signal setting in the Signal menu. In most cases, leave 
it set at 
Auto. If you’re using a 60-Hz PAL video source, change 
this setting to 
PAL60. See page 60 for details.
■Make sure the cables are securely connected at both ends.
■Select the correct resolution; see “Compatible Video Formats” on 
page 98.
■If you’re projecting from a computer, press the Auto button on 
the remote control or the 
Enter button...

90Solving Problems
■If further adjustment is needed, you can fine-tune the Tracking 
and 
Sync settings manually using the Signal menu as described 
on page 59. 
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. Or 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....