Epson Powerlite 7900p Multimedia Projector Users Guide

							Solving Problems121
Where To Get Help
Epson provides technical assistance through electronic support 
services 24 hours a day, as listed in the following table.
Telephone Support Services
To use the Epson PrivateLine Support service, call (800) 637-7661 
and enter the PIN on the Epson PrivateLine Support card included 
with your projector. This is the fastest way of speaking to a live 
representative, and it’s free. This service is available 6
AM to 6PM, 
Pacific Time, Monday through Friday, for the duration of your 
warranty period.
You may also speak with a projector support specialist by dialing one 
of these numbers:
■U.S.: (562) 276-4394, 6AM to 6PM, Pacific Time, Monday 
through Friday
■Canada: (905) 709-3839, 6AM to 6PM, Pacific Time, Monday 
through Friday
Toll or long distance charges may apply.
Before you call, please have the following information ready:
■Product name (Epson PowerLite 7900p)
■Product serial number (located on the bottom of the projector)
■Computer configuration
■Description of the problem
You can purchase screens, carrying cases, or other accessories from 
Epson at (800) 873-7766 or by visiting the Epson Store at 
www.epsonstore.com (U.S. sales only). In Canada, please call 
(800) 463-7766 for dealer referral
.
Service Access
World Wide Web From the Internet, you can reach Epson’s product support page at 
http://support.epson.com. After selecting your product, you can access 
troubleshooting information, download product documentation, and receive 
technical advice through e-mail.
Presenters Online Access tips, templates, and training for developing successful presentations at 
http://www.presentersonline.com 
						

							122Solving Problems 
						

							123
A
Appendix A: Projector 
Installation
This appendix provides guidelines on installing the projector in a 
permanent location, such as a theater or conference room.
Installation Guidelines
The projector can be installed for four different viewing setups: front 
projection, ceiling mounting, rear projection onto a semi-transparent 
screen, or rear/ceiling projection, as shown: 
To project from overhead, you’ll need the optional ceiling mounting 
hardware; see page 15 for ordering information. You’ll also need to 
select 
Ceiling in the projector’s Advanced1 menu to flip the image 
upside-down. To project from the rear, select 
Rear Proj (see page 76).
Front projectionRear projection
Rear/ceiling projectionCeiling mounting 
						

							124Appendix A: Projector InstallationIf you’re mounting the projector on the ceiling and you place it above 
screen level, you’ll have to tilt it down to position the image on-screen. 
This causes the image to lose its square shape. You can then correct 
the distortion by using the 
Keystone function in the projector’s 
menu system (see page 71) or by using the 
Keystone buttons on the 
projector’s control panel.
If you place the projector so that the base of the lens is level with the 
bottom of the screen, the image will be square and you won’t have to 
adjust it. If you place the lens lower than the bottom of the screen, 
you’ll have to tilt the projector upward if you want to fill the whole 
screen with the image. 
If you want to be able to control the projector’s settings from a remote 
computer, see Chapter 5.
You can also use the remote control to operate more than one 
projector. See page 63. 
						

							125
A
Appendix B: Technical 
Specifications
General
Type of display Poly-silicon TFT active matrix
Size of LCD panels Diagonal: 1.0 inch (25.4 mm)
Lens F=1.7 to 2.3, f=28 to 37 mm
Resolution
(native format) 1024 × 768 pixels (XGA)
Color reproduction 24 bit, 16.7 million colors
Brightness 4000 lumens (High brightness mode)
3500 lumens (Low brightness mode)
Contrast ratio 700:1
Image size 30 to 300 inches
Projection distance 2.5 to 36.5 feet (0.8 to 11 meters)
Projection methods Front, rear, upside-down (ceiling mount)
Internal sound system 5 W monaural
Optical aspect ratio 4:3 (horizontal:vertical)
Zoom ratio 1:1.35
Noise level 36 dB
Keystone correction Automatic with manual adjustment 
capability, 
± 40° (vertical), ± 20° (horizontal) 
						

							126Appendix B: Technical Specifications
Projection Lamp
Type UHE (Ultra High Efficiency)
Power consumption 250 W
Lamp life Up to 2000 hours (high brightness mode)
Up to 3000 hours (low brightness mode)
Part number V13H010L22
Remote Control
Range 33 feet (10 meters)
Batteries (2) Alkaline size AA 
Mouse Compatibility
Supports USB
Dimensions
Height 4.6 inches (117 mm), feet retracted
Width 16.5 inches (419 mm)
Depth 12.8 inches (325 mm)
Weight 12.3 lb (5.6 kg)
Electrical
Rated frequency 50/60 Hz AC
Power supply 100 to 120 VAC, 3.6 A
200 to 240 VAC, 1.6 A
Power consumption Operating: 350 W
Standby: 1.5 W with Network OFF
 47 W with Network ON 
						

							Appendix B: Technical Specifications127
Environmental
Temperature Operating: 41 to 104 °F (5 to 40 °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
Safety
United States FCC 47CFR Part 15B Class B (DoC)
UL60950 Third Edition
Canada ICES-003 Class B
CSA C22.2 No. 60950
CE Marking Directive 73/23/EEC
Directive 89/336/EEC
EN 55022, EN 55024
Pixelworks
™ DNX™ ICs are used in this 
projector. 
						

							128Appendix B: Technical Specifications
Compatible Video Formats
The projector supports NTSC, PAL, and SECAM international video 
standards, as well as the monitor display formats listed below.
To project images output from a computer, the computer’s video card 
must be set at a refresh rate (vertical frequency) that’s compatible with 
the projector; see the following table for compatible formats. As noted 
below, some images are automatically resized to display in one of the 
projector’s “native” formats (such as XGA). In addition, the 
frequencies of some computers may not allow images to display 
correctly; see your computer’s documentation for details.
Mode Refresh Rate (Hz) Resolution
VGAEGA 70 640 
× 350*
VGA—60
VESA—72
VESA—75
VESA—8560
72
75
85640 × 480*
640 × 480*
640 × 480*
640 × 480*
SVGA—56
SVGA—60
SVGA—72
SVGA—75
SVGA—85
SVGA—100
SVGA—12056
60
72
75
85
100
120800 × 600*
800 × 600*
800 × 600*
800 × 600*
800 × 600* 
800 × 600*
800 × 600*
XGA—60
XGA—70
XGA—75
XGA—85
XGA—100
XGA—12060
70
75
85
100
1201024 × 768
1024 
× 768
1024 
× 768
1024 
× 768
1024 
× 768
1024 
× 768
SXGA1—70
SXGA1—75
SXGA1—85
SXGA1—10070
75
85
1001152 
× 864
1152 
× 864
1152 
× 864
1152 
× 864
SXGA2—60
SXGA2—75
SXGA2—8560
75
851280 
× 960*
1280 × 960*
1280 × 960*
SXGA3—60
SXGA3—75
SXGA3—8560
75
851400 × 1050*
1400 × 1050*
1400 × 1050* 
						

							Appendix B: Technical Specifications129
*The image is resized using Epson’s SizeWise™ Technology. 
UXGA—60
UXGA—65
UXGA—70
UXGA—75
UXGA—80
UXGA—8560
65
70
75
80
851600 × 1200*
1600 × 1200*
1600 × 1200*
1600 × 1200*
1600 × 1200*
1600 × 1200*
MAC13
MAC16
MAC19
MAC2167
75
75
75640 × 480*
832 × 624*
1024 × 768
1152 
× 870*
NTSC 
NTSC 4:43
PAL
N-PAL
M-PAL
PAL—60
SECAM60
60
50
50
60
60
50—
—
—
—
—
—
—
HDTV (720p)
HDTV (1080i)60
601024 
× 576*
1024 × 576*
SDTV (480i)
SDTV (480p)
SDTV (625i)
SDTV (625p)60
60
50
501024 × 768
1024 
× 768
1024 
× 768
1024 
× 768 Mode Refresh Rate (Hz) Resolution 
						

							130Appendix B: Technical Specifications