Epson Powerlite 71c Multimedia Projector Users Guide

56Solving Problems
Image or Sound Problems
No image appears or the No Signal message is displayed.

Check that the Power light is green and not flashing and the 
lens cover is off. If the 
Power light is orange, the projector is 
in sleep mode; press the 
Power button to wake it up.

Your computer’s screen saver may be on. Press a key on the 
computer keyboard.

The A/VMute feature may be turned on. Press the A/VMute 
button on the remote control to turn it off, if necessary.

Make sure the cables are...

Solving Problems57
Only part of the computer image is displayed.

If the computer’s output resolution setting is higher than 
800
×600 (EPSON PowerLite 51c) or 1024×768 (EPSON 
PowerLite 71c), the image is resized. If the computer output is 
not compatible with this resizing, choose a different display 
setting as follows:
Windows: In Windows 95/98/Me/2000/XP, right-click on the 
desktop, select 
Properties, click the Settings tab, and select the 
resolution you want. In Windows 3.x, use Windows Setup in...

58Solving Problems

There may be dirt or smears on the lens. Clean the lens by gently 
wiping it with an alcohol-based cleaner on a soft cloth. See 
page 48 for more information.

Your video signal mode may not be detected automatically. Select 
Manual and then choose the correct signal for the Mode setting 
on the projector’s Video menu; see page 41 for instructions.
The image vibrates, flickers, or has vertical lines.

Adjust the Tracking and Sync settings on the Video menu (or 
through the projector’s...

Solving Problems59

Check the current lamp life and replace the lamp, if necessary. See 
page 45 for instructions on checking the lamp usage using the 
projector’s About menu and page 50 for instructions on replacing 
the lamp.
There is no sound.

Press the right side of the Volume button on the remote control 
to turn up the sound.

Press the A/VMute button on the remote control to make sure 
this feature is not enabled.

Make sure the right source is selected. Press the Source button on 
top of the...

60Solving Problems

Make sure you are within 32 feet of the projector and within a 30° 
horizontal or 15° vertical angle of the infrared receiver on the 
front of the projector.

If you’re having trouble using the remote control as a wireless 
mouse, make sure the mouse cable is securely connected to both 
ends. See Chapter 1 for details.
Where To Get Help
EPSON provides technical assistance through electronic support 
services, as listed in the following table:
To use the EPSON PrivateLine Support...

Solving Problems61
Before you call, please have the following information ready:

Product name (EPSON PowerLite 51c or 71c)

Product serial number (located on the bottom of the projector)

Video source (computer, DVD player, etc.) and how it’s 
connected

Description of the problem 

62Solving Problems 

6
Technical Specifications63
Technical Specifications
General
Type of display Poly-silicon Thin Film Transistor (TFT)
Size of liquid
crystal panels Diagonal: 0.7 inch (17.8 mm)
Lens F=1.5, f=26.3 mm
Focus adjustment Manual
Zoom ratio Digital 0.8 to 1.0, lens at maximum size, 
100% to 83% (smallest)
Resolution 51c: 800 × 600 pixels
71c: 1024 × 768 pixels 
Color reproduction 24 bit, 16.7 million colors
Brightness (ANSI) 51c: 1200 lumens 
71c: 1000 lumens
Image size (diagonal) 2.3 to 25 ft (0.7 to 7.6 m)...

64Technical Specifications
Projection Lamp
Ty p e U H E  ( U l t r a  H i g h  E f f i c i e n c y )
Power consumption 160 W
Lamp life About 1500 hours 
Part number V13H010L16
Remote Control
Range 32.8 feet (10 meters)
Batteries Alkaline AA (2)
Mouse Compatibility
Supports PS/2, USB, and ADB
Dimensions
Height 3.14 inches (80 mm)
Width 11.8 inches (300 mm)
Depth 8.66 inches (220 mm)
Weight 6.8 lb (3.1 kg)
Electrical
Rated frequency 50/60 Hz
Power supply 100 to 120 VAC, 2.4 A
200 to 240 VAC, 1.2 A
Power...

Technical Specifications65
Safety
United States FCC Part 15J Class B
UL1950 Rev. 3
Canada DOC SOR/88-475
CSA C22.2 No. 950 Rev. 3
CE Marking Directive 89/336/EEC
EN 55022 Class B
EN 50082-1
Directive 73/23/EEC
EN 60950
Computer Connector Pin Assignments
The Computer port is a female video RGB, 15-pin micro-D-style 
connector. 
Input pin Computer connector signals
1 Red video
2 Green video
3 Blue video
4 GND
5 GND
6 Red video GND
7 Green video GND
8 Blue video GND
9 Reserve
10 Synchronous GND
11 GND
12...