Epson Powerlite 74c Multimedia Projector Users Guide

							Solving Problems81
There is no sound.
■Try turning up the volume in the Audio menu (see page 51). 
■Make sure the A/V Mute function is not on.
■If you’re using a VCR 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 connected to the correct Audio port. 
See page 20 or page 23. 
■If your presentation includes computer audio, make sure the 
volume control on your computer is not turned all the way down 
or muted. Make sure the audio cable is securely connected to both 
the projector and your computer’s   headphone jack or
 audio out jack. See page 20.
■Make sure the Windows volume controls on your computer are 
not turned all the way down or set to Mute. Check this by 
clicking the volume control in your Windows System Tray (lower 
right corner of the screen). 
■The wrong source may be selected. Press the Source button on 
the projector—or the 
Computer1/2 or S-Video/Video button 
on the remote control—to select the correct source.
■Check the Audio Input setting in the Audio menu. 
						

							82Solving Problems
Solving Password Problems 
You have forgotten the password.
■Write down the request code that appears in the Password Protect 
Release screen and contact EPSON. See “Where To Get Help” 
on page 83.
■If you turned on the password protect feature before setting the 
password and no password was set before, try using the default 
password: 
0000.
You don’t have the remote control.
You must have the remote control to enter the password. If necessary, 
you can purchase a replacement remote control from EPSON (part 
number: V12H007T13).
Solving Problems with the Remote 
Control
The projector doesn’t respond to remote control commands.
■Make sure the tape has been removed from the battery tray as 
described on page 40. 
■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).
■The remote control battery may not be installed correctly or may 
be low on power. Change the battery as described on page 44.
■Dim the room lights and turn off any fluorescents. Make sure the 
projector is not in direct sunlight. Strong lighting, especially 
fluorescent lights, may affect the projector’s infrared receivers.
■Turn off any nearby equipment that emits infrared energy, such 
as a radiant room heater. 
						

							Solving Problems83
You have lost the remote control.
You need the remote control to access many projector features. If you 
have lost it, you can order another from EPSON (part number 
V12H007T13).
To prevent losing the remote control, store it in the compartment 
beneath the projector, as described on page 40.
You can’t control the mouse pointer with the remote 
control.
■Make sure the mouse cable is securely connected to both your 
computer’s mouse port or USB port and the projector’s USB 
port. For details, see page 19.
■Make sure RS232C is selected as the COM Port setting in the 
Advanced menu. See page 54. 
■To use the USB mouse connection on a PC, your system must 
have a “clean” installation of Windows 98, Windows Me, 
Windows XP, or Windows 2000. The connection may not work 
correctly if your system was upgraded from Windows 95.
Where To Get Help
EPSON provides technical assistance through electronic support 
services 24 hours a day, as listed in the following table.
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 
						

							84Solving Problems
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 
in your Start Here kit. 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 54c or PowerLite 74c)
■Product serial number (located on the bottom of the projector)
■Computer or video 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
. 
						

							Appendix A: Technical Specifications85
A
Appendix A: Technical 
Specifications
General
Type of display Poly-silicon TFT active matrix
LCD panels (3) Diagonal size: 0.7 inches (17.8 mm)
Lens F=1.70 to 1.87, f=21.3 to 25.6 mm
Resolution 74c: 1024 
× 768 pixels 
54c: 800 
× 600 pixels 
Color reproduction Full color, 16.8 million colors
Brightness (ANSI) 2000 lumens (High brightness mode)
1500 lumens (Low brightness mode)
Contrast ratio 500:1
Image size 30 to 300 inches (0.8 to 7.6 meters)
Projection distance 2.9 to 34.4 feet (0.9 to 10.5 meters)
Projection methods Front, rear, ceiling
Focus adjustment Manual
Zoom adjustment Manual
Internal sound system 1 W monaural 
Optical aspect ratio 4:3 (horizontal : vertical)
Zoom ratio 1 : 1.2
Noise level 38 dB (High brightness mode)
33 dB (Low brightness mode)
Keystone correction
angle
± 15° vertical (maximum)
Pixelworks DNX
™ ICs are used in this projector. 
						

							86Appendix A: Technical Specifications
Projection Lamp
Power consumption 200 W
Lamp life About 2000 hours (High brightness);
3000 hours (Low brightness)
Part number V13H010L27
Remote Control
Range 20 feet (6 meters)
Battery CR2025 lithium
Mouse Compatibility
Supports USB
Dimensions
Height 3.4 to 3.8 inches (feet extended)
(87 to 97 mm)
Width 12.4 inches (315 mm)
Depth 9.5 inches (240 mm)
Weight 6.4 lb (2.9 kg) 
Electrical 
Rated frequency 50/60 Hz
Power supply 100 to 120 VAC, 2.6 A
200 to 240 VAC, 1.3 A 
Power consumption Operating: 280 W
Standby: 3 W 
						

							Appendix A: Technical Specifications87
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
Safety and Approvals
United States FCC 47CFR Part15B Class B (DoC)
UL1950 Rev. 3
Canada ICES-003 Class B
CSA C22.2 No. 950-95 (cUL)
CE Marking Directive 73/23/EEC, 89/336/EEC
EN 55022, EN 55024 
						

							88Appendix A: Technical Specifications
Compatible Video Formats
The projector supports NTSC, PAL, and SECAM international video 
standards, as well as the monitor and HDTV 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—8556
60
72
75
85800 × 600* 1
800 × 600* 1
800 × 600* 1
800 × 600* 1
800 × 600* 1
XGA—43i
XGA—60
XGA—70
XGA—75
XGA—8543
60
70
75
851024 × 768* 2 
1024 × 768* 2
1024 × 768* 2
1024 × 768* 2
1024 × 768* 2
SXGA1—70
SXGA1—75
SXGA1—8570
75
851152 × 864*
1152 × 864*
1152 × 864*
SXGA2—60
SXGA2—75
SXGA2—8560
75
851280 × 960*
1280 × 960*
1280 × 960*
SXGA3—43i
SXGA3—60
SXGA3—75
SXGA3—8543
60
75
851280 × 1024*
1280 × 1024*
1280 × 1024*
1280 × 1024* 
						

							Appendix A: Technical Specifications89
* The image is resized using EPSON’s SizeWise Technology.1Resized on the PowerLite 74c only; native mode on the PowerLite 54c.2Resized on the PowerLite 54c only; native mode on the PowerLite 74c.3Resized on the PowerLite 74c only; not available on the PowerLite 54c.
UXGA—48i
UXGA—6048
601600 × 1200* 3
1600 × 1200* 3
MAC13
MAC16
MAC19—60
MAC19
MAC2167
75
59
75
75640 × 480*
832 × 624*
1024 × 768* 2
1024 × 768* 2
1152 × 870*
NTSC 
NTSC 4:3
PAL
M-PAL
N-PAL
PAL—60
SECAM60
60
50
60
50
60
50—
—
—
—
—
—
—
HDTV (480i)
HDTV (480p)
HDTV (575i)
HDTV (575p)
HDTV (720p)
HDTV (1080i)
HDTV (1080i) 33.75/
31.2559.94
59.94
50
50
60
60
50720 
× 480*
720 × 480*
720 × 574*
720 × 574*
1280 × 720*
1920 × 1080*
1920 × 1080*
Mode Refresh Rate (Hz) Resolution 
						

							90Appendix A: Technical Specifications
Computer Video Port Pin Assignments
The Computer port is a female video RGB, 15-pin micro-D-style 
connector. Here are its pin assignments:  
Pin no. Computer port
1 Red video
2 Green video
3 Blue video
4GND
5GND
6 Red GND
7 Green GND
8 Blue GND
9 Reserved
10 Synchronous GND
11 GND
12 SDA
13 Horizontal sync / composite sync
14 Vertical sync
15 SCL