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...

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...

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...

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...

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...

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”...

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...

130Appendix B: Technical Specifications