Epson Powerlite 7550c Users Guide

							Connecting to a Video Source Other Than a Computer
43
Connecting to a Video Source Other Than a Computer 
 
In addition to your computer, you can connect a VCR, camcorder, 
DVD player, or any other compatible video source to your projector.
If you want, you can connect a single video source, such as a VCR. 
You don’t have to connect a computer unless you want to use the 
optional ELP Link III software. You can also connect a computer 
plus a second video source simultaneously. If your video source has 
audio capability, it can also be an audio source.
The projector can receive composite video or S-Video:
p
If your video device has a one-pin RCA video jack, it’s a 
composite video source. Use the audio/video (A/V) cable 
supplied with the projector to connect the projector to your 
video device.
p
If your video device has a four-pin video jack, it’s an S-Video 
source. To connect the video device to your projector, use the 
S-Video cable supplied with your video device, or obtain an 
S-Video cable from your computer dealer.
Note: The projector is not compatible with a cable TV-style F 
connector.
If both a composite video and S-Video device are connected to the 
projector, the projector automatically selects S-Video as the default 
video source. To display composite video, disconnect the S-Video 
device. 
						

							1    Setting Up the Projector             44
The projector supports NTSC, PAL, PAL60, and SECAM video 
formats, and automatically detects and identifies the video format. 
However, if automatic selection is not possible for some reason, you 
can specify that a specific video format be detected (see page 74). 
Note: If you change the Video Signal setting in the Setting menu to 
specify a particular video format, the projector will be able to detect 
only the format specified. To have the projector automatically detect 
any supported video format, reset the Video Signal setting to Auto.
Follow these steps to connect a video device:
1. Turn off the projector and video device, if they’re on.
2. Locate the appropriate video cable:
p
If your video source has a large, round, four-prong S-Video 
connector, use the cable that came with your video device, or 
purchase an S-Video cable from your computer dealer.
p
If your video source has a small, round, one-prong composite  
(RCA) video connector, use the audio/video (A/V) cable that  
came with the projector. (The A/V cable has three RCA 
plugs on either end of the cable.) 
						

							Connecting to a Video Source Other Than a Computer
45
3. For S-Video, insert one end of an S-Video cable into the 
projector’s S-Video In connector. Insert the other end into the 
S-Video Out jack on your video device.
If you want to use your S-Video device as an audio source too, 
follow the instructions earlier in this chapter for connecting the 
projector’s audio cable, except connect it to your S-Video 
device instead of your computer. 
S-Video In 
connector
S-Video cable 
						

							1    Setting Up the Projector             46
4. For composite video, connect the yellow RCA plug on one end 
of the audio/video cable to the projector’s Video In port. 
Connect the other yellow RCA plug to the video-out jack on 
your video device. 
If you want to use your composite video device as an audio 
source too, connect the other plugs on the audio/video cable to 
the Audio jacks on the projector: insert the white plug into the L 
Audio jack and the red plug into the R Audio jack. Connect the 
plugs at the other end of the audio/video cable to the audio 
output jacks on your video device. 
Video In port
L Audio
R Audioaudio/video (A/V) cable 
						

							Connecting to an External Speaker or Public Address System
47
Connecting to an External Speaker or Public Address 
System  
 
Although the projector’s internal speakers are enough for most 
small- or medium-size rooms, you can connect the projector to an 
external speaker or public address (PA) system for large rooms or to 
gain maximum benefit from the projector’s built-in 3D sound 
function.
To connect the projector to an external sound system, you need to 
get an RCA-to-3.5 mm stereo audio cable from your computer 
dealer.
1. Turn off the projector and speaker or PA system, if they’re on.
2. Connect the cable’s 3.5 mm stereo miniplug to the projector’s 
Audio Out jack. 
Audio Out jackstereo audio 
cable 
						

							1    Setting Up the Projector             48
3. Connect the RCA plugs to the speaker or PA system. Insert the 
cable’s red plug into the Audio R jack, and the white plug into 
the Audio L jack. 
						

							Turning the Equipment On and Off
49
Turning the Equipment On and Off
It’s best to turn on the projector and its attached equipment in the 
following order:
1. Video source (such as a VCR), if your video source is not your 
computer
2. Audio source (if different from the computer or video source)
3. External amplified speaker or PA system (if you’ve connected 
one)
4. Projector (see instructions below)
5. Computer
When you’re ready to turn off the equipment, do so in the reverse 
order.
Turning the Projector On and Off 
Before you turn on the projector, make sure it is plugged in and 
connected to your video source.
1. Remove the projector lens cap. 
2. Turn on the main power switch located at the rear of the 
projector and wait until the power light turns orange. 
						

							1    Setting Up the Projector             50
3. Press the Power button on the remote control or the control 
panel on top of the projector. The power light flashes green as 
the projector warms up. When the projector is fully warmed up, 
this light remains green.
If computer or video equipment is attached, the computer or video 
signal is projected. Allow about 30 seconds for full illumination.
Warning: Never look into the lens when the lamp is on. This can 
damage your eyes. It is especially important that children not look 
into the lens.
When you want to stop projecting images, press the Power button 
again. The fan remains on and the power light flashes orange for 
about two minutes as the projector cools down.
Note: Projecting an image for an extended time may cause an 
afterimage to appear on the screen.
  
power light
projector lamp light
temperature light 
						

							Turning the Equipment On and Off
51
When the projector has cooled down, the power light stops flashing 
and remains orange.
To turn off the projector completely, wait until it cools down and the 
power light stops flashing. Then turn off the switch on the back of 
the projector. 
Note: If you press the Power button to turn the projector back on 
while the power light is orange, there may be a delay before a 
projected image appears.
Sleep Mode
Sleep mode conserves electricity by automatically turning off the 
lamp after the projector has not been used for 30 minutes. In sleep 
mode, the projector’s power light turns a steady orange and only a 
minimum amount of the projector’s circuitry remains on. This 
conserves electricity, cools the projector, and extends the life of the 
lamp. 
When the projector is in sleep mode, press the Power button to 
resume projecting images, or press the power switch on the back of 
the projector to turn it off.  
						

							49
2Using the Projector
T
his chapter provides instructions for the following:
p
Positioning the projector relative to the screen
p
Focusing and positioning the screen image
p
Using the remote control and control panel to control 
the projector
p
Monitoring the projector’s operating status