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...

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...

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...

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)...

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...

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...

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...

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...

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