Epson Powerlite 77c Multimedia Projector Users Guide

Solving Problems91
There is no sound.
■Press the   button on the projector (PowerLite 77c only) or the 
Vol+ button on the remote control to turn up the volume.
■If you’ve turned off the picture and sound, press the A/V Mute 
button on the remote control to turn them on again.
■If you’re using a DVD player or other video source, make sure its 
volume is not turned all the way down or muted. Also, make sure 
the cables are connected correctly, as described in Chapter 1.
■Make sure the audio cable is...

92Solving Problems
Solving Problems with the Remote 
Control
The projector doesn’t respond to remote control commands.
■Make sure you are within 20 feet of the projector, and within 
range of the projector’s front or back sensor (approximately 30° to 
the left or right and 15° above or below).
■If a button on the remote control is held for more than 30 
seconds, the remote enters sleep mode. Press another button for 
normal operation. 
■The remote control batteries may not be installed correctly or may...

Solving Problems93
■If you’re running Windows 98SE or Me, you may need to install 
USB drivers from your Windows CD-ROM. After you install the 
drivers, restart both the computer and the projector to 
resynchronize the setup.
Where To Get Help
Epson provides these technical support services:
Internet Support
Visit Epson’s support website for solutions to common problems with 
the PowerLite S5, PowerLite S5+, or PowerLite 77c. You can 
download utilities and documentation, get FAQs and troubleshooting...

94Solving ProblemsBefore you call, please have the following information ready:
■Product name (PowerLite S5 Series/77c)
■Product serial number (located on the bottom of the projector) 
■Proof of purchase (such as a store receipt) and date of purchase
■Computer or video configuration
■Description of the problem
Purchase Supplies and Accessories
You can purchase screens, carrying cases, or other accessories from an 
Epson authorized reseller. To find the nearest reseller, call 
800-GO-EPSON (800-463-7766)....

95
A
Technical Specifications
General
Type of display Poly-silicon TFT active matrix
Lens
PowerLite S5 series F=1.44, 16.6 mm
Lens
PowerLite 77c F=1.6 to 1.74, 18.4 to 22.12 mm
Resolution
PowerLite S5 Series 800 × 600 pixels (SVGA+)
Resolution
PowerLite 77c 1024 × 768 pixels (XGA)
Color reproduction Full color, 16.77 million colors
Brightness (ANSI)
PowerLite S5 Series 2000 lumens (High brightness mode)
1600 lumens (Low brightness mode)
Brightness (ANSI)
PowerLite 77c 2200 lumens (High brightness mode)...

96Technical SpecificationsZoom adjustment Digital ( PowerLite S5 Series) 
Manual ( PowerLite 77c)
Internal sound system1 W monaural 
Optical aspect ratio 4:3 (horizontal:vertical)
Zoom ratio 1:1.35 (PowerLite S5 Series)
1:1.2 ( Powerlite 77c)
Noise level 35 dB (High brightness mode)
28 dB (Low brightness mode)
Keystone correction
angle
± 30° vertical (maximum)
Projection Lamp
Power consumption 170 W UHE
Lamp life About 3000 hours (High brightness);
4000 hours (Low brightness)
Remote Control
Range 20 feet...

Technical Specifications97
Electrical 
Rated frequency 50/60 Hz
Power supply 100 to 120 VAC, 2.8 A
200 to 240 VAC, 1.2 A 
Power consumption Operating: 248 W
Standby: 4.1 W
Environmental
Temperature Operating: 41 to 95 °F (5 to 35 °C)
Storage: 14 to 140 °F (–10 to 60 °C)
Humidity  Operating: 20 to 80% RH, 
non-condensing 
Storage: 10 to 90% RH, 
non-condensing
Altitude Up to 4,900 feet (1,500 m)
Up to 7,500 feet (2,286 m) with high 
altitude mode enabled
Safety and Approvals
United States FCC Part15B...

98Technical Specifications
Compatible Video Formats
You can use any of the following video sources: VCR, DVD player, 
camcorder, digital camera, or gaming console. The projector supports 
composite video, S-Video, component video, and RGB video, and it 
automatically senses the video format (HDTV, SDTV, NTSC, PAL, 
or SECAM). 
The projector supports these international video standards:
Mode Refresh Rate (Hz)
NTSC 
NTSC 4:3
PAL
M-PAL
N-PAL
PAL60
SECAM60
60
50
60
50
60
50
TV480i
TV576i
SDTV480p
SDTV576p...

Technical Specifications99
Compatible Computer Display Formats
You can connect the projector to a wide range of computers, including 
PCs and notebooks, Apple Macintosh, Power Macintosh series 
(including G3, G4 and G5 systems), PowerBook computers, many 
iMac and iBook series systems, and high-end workstations such as the 
Sun
® SPARCstation.™ 
Although images are displayed at the projector’s native resolution of 
800 × 600 pixels (PowerLite S5 Series) or 1024 × 768 pixels 
(PowerLite 77c). Epson’s...

100Technical SpecificationsThe projector supports these monitor display formats: 
Mode Refresh Rate (Hz) Resolution
VGA EGA 70 640 × 350
VGA—60
VESA—72
VESA—75
VESA—85
VGA—120 (PL 77c only)60
72
75
85
120640 × 480
640 × 480
640 × 480
640 × 480
640 × 480
SVGA—56
SVGA—60
SVGA—72
SVGA—75
SVGA—85
SVGA—120 (PL 77c only)56
60
72
75
85
120800 × 600
800 × 600
800 × 600
800 × 600
800 × 600
800 × 600
XGA—60
XGA—70
XGA—75
XGA—85
XGA—120 (PL 77c only)60
70
75
85
1201024 × 768
1024 × 768
1024 × 768
1024 × 768
1024 ×...