Epson Powerlite 7550c Technical Specifications

							EPSON PowerLite 5550C/7550C Multimedia Projector
9/99PowerLite 5550C/7550C Multimedia Projector - 1
Projector Specifications 
General
Type of display Poly-silicon Thin Film Transistor (TFT),
active matrix
Size of liquid 
crystal panels    Diagonal: 0.9 inches (22.9 mm) 
Lens F = 1.7–2.0, f = 37–48 mm
Resolution 5550C: SVGA 800 
´ 600 pixels
7550C: XGA 1024 
´ 768 pixels
Color 
reproduction 24 bit, 16.7 million colors
Image brightness 5550C: 850 lumens (ANSI)
7550C: 1000 lumens (ANSI)
Image size 19–300 inches
Projection 
distance 3.3–53.5 feet (1.0–16.3 meters)
(standard 8.2 feet [2.5 meters] on 60-inch
screen)
Projection 
methods Front, rear, upside-down (ceiling mount)
Optical aspect 
ratio 4:3 (horizontal:vertical)
Zoom ratio 1:1.3
Tilt angle 0° to 12°
Supported video
interface standards NTSC, NTSC 4.43, PAL, PAL N, 
PAL M, PAL 60, SECAM
Sound
Internal speaker 
system 2 
´ 1 W, SRS, 3D stereo output
Effective 
frequency range 5550C: 100 to 15000 Hz
7550C: 50 to 15000 Hz
S/N ratio 5550C: 71 dB; 7550C: 75 dB
Projector Lamp
Type UHE (Ultra High Efficiency)
Power 
consumption 120 W
Lamp life About 2000 hours
Part number ELPLP07
hand strap 
connectorsspeakers
focus ring
foot adjust 
levers
adjustable 
foot status lights
rear feet control panel
infrared 
receiver
hand strap 
slider button
zoom ring
AC inletRight Audio
Repeater
Audio InAudio OutMouse/Com  Computer In Computer Out S-Video In
Video In
power switch
Left Audio 
						

							EPSON PowerLite 5550C/7550C Multimedia Projector
2 - PowerLite 5550C/7550C Multimedia Projector9/99 Remote Control
Range 32.8 feet (10 meters)
Batteries Alkaline AA (2)
I/R receiver  Supports Xantech
® IR repeaters, 
interface 3.5 mm stereo mini-jack 
right/left ± 30°; upper/lower ± 15°
Mouse Compatibility
Supports PS/2, serial, ADB, and 98 Bus
Repeater Interface
Supports Xantech IR repeaters,
standard, 3.5 mm stereo mini-jack
Mechanical
Height 3.7 inches (93 mm)
Width 9.4 inches (238.5 mm)
Depth 13.6 inches (346 mm)
Weight 9.4 lb (4.3 kg)
Electrical
Rated frequency 50/60 Hz
Power supply 100 to 120 VAC (± 10%), 2.2 A, 
50/60 Hz
200 to 240 VAC (± 10%), 1.0 A, 
50/60 Hz
Power
consumption Operating: 220 W
Standby: 30 W
Noise Level
£ 42db-A (normal use)
Environmental
Temperature Operating: 41 to 95 °F (5 to 35 °C),
non-condensing
Storage: 14 to 140 °F (–10 to 60 °C),
non-condensing
Humidity Operating: 20 to 80% RH, 
non-condensing
Storage: 10 to 90% RH, 
non-condensing
Safety
United States FCC Part 15J Class B
UL1950 Rev. 3
Canada DOC SOR/88-475
CSA C22.2 No. 950 Rev. 3Supported Computers and Monitor Displays
The projector supports the following display formats.
* PowerLite 7550C only.
Note: The frequencies of some computers may not allow the image 
to be displayed correctly.
Computer In and Computer Out 
Connector Pin Assignments
The Computer In and Computer Out connectors are female 
video RGB, 15-pin micro-D-style connectors. The pin 
assignments are:
Computer type Formats Resolutions
IBM PC and 
IBM PC compatibleEGA
NEC PC 400
VGA60, VESA 72/75/85
VGA Text
VGA Text
SVGA 56/60/72/75/85
XGA 60/70A/75/85
SXGA 70/75
SXGA 85
SXGA 60/75640 ´
 350
640 ´
 400
640 ´
 480
720 ´
 350
720 ´
 400
800 ´
 600
1024 ´
 768
1152 ´
 864
1152 ´
 864*
1280 ´
 1024*
Apple Macintosh Standard 8- and 24-bit 
color monitor 640 ´
 480 (13”)
832 ´
 624 (16”)
1024 ´
 768 (19”)
1152 ´
 870 (21”)
EWS 1280 ´
 1024*
TV NTSC
PAL, PAL60, SECAM640 ´
 480
768 ´
 567
PinComputer Out
connector signalsComputer In
connector signals
1 Red analog input Red video
2 Green analog input Green video
3 Blue analog input Blue video
4 Reserved Monitor (ID bit 2)
5GND GND
6 Red GND Red video GND
7 Green GND Green video GND
8 Blue GND Blue video GND
9 Reserved +5 V
10 GND Synchronous GND
11 Reserved Monitor (ID bit 0)
12 Reserved SDA
13 Horizontal sync/composite sync  Horizontal sync
14 Vertical sync  Vertical sync
15 Vertical sync (SCL) 
						

							EPSON PowerLite 5550C/7550C Multimedia Projector
9/99PowerLite 5550C/7550C Multimedia Projector - 3
Projector Placement Guidelines
To get the best results when projecting your images, position 
the projector at the proper height and distance relative to the 
screen. When projecting from a table or desk, place the 
projector so the lens is aligned as closely as possible with the 
bottom of your screen:
When projecting from the ceiling, align the lens as closely as 
possible with the top of your screen:
The distance between the projector and the screen determines 
the actual image size. To determine the exact distance required 
for a particular image size (or to determine the size of an image 
at a particular distance), use the following formulas. 
(Remember that the size of the image can be changed by 
rotating the zoom ring.)
To determine the minimum and maximum diagonal size of an 
image when you know the projection distance:
oInches:
Maximum image size = (0.6038 ´ projection distance) + 1.8898
Minimum image size = (0.4631 
´ projection distance) + 1.4000
oCentimeters:
Maximum image size = (0.6038 ´ projection distance) + 4.8001
Minimum image size = (0.4631 
´ projection distance) + 3.5560
To determine the projection distance when you know the 
diagonal size of the screen image:
oInches:
Maximum projection distance = (2.1593 ´ image size) – 3.0229
Minimum projection distance = (1.6562 
´ image size) – 3.1291
oCentimeters:
Maximum projection distance = (2.1593 ´ image size) – 7.6782
Minimum projection distance = (1.6562 
´ image size) – 4.2068
For example, here are the measurements for three 
installations:
* For an image size of 300 inches, the projector may be up to 53.7 feet 
away from the screen, depending on the setting of the zoom ring.
Using the Remote Control
The remote control uses a line-of-sight infrared signal. To use 
the remote control, point it toward the infrared receiver 
located at the front of the projector.
To be able to use the remote control as a cordless mouse, 
connect the projector to your computer with the mouse cable 
(PS/2 or ADB-Macintosh) that came with the projector.
You can use the remote control up to about 32.8 feet 
(10 meters) from the projector. (This distance may be shorter 
if the remote control batteries are low.) You must also hold the 
remote control so that it is within 
± 30° left or right of, and 
±15° higher or lower than, the infrared receiver.
Note: If the projector doesn’t respond to remote control 
commands, a strong light source (such as direct sunlight) may be 
hitting the infrared receiver. The presence of a certain type of 
fluorescent light or equipment emitting infrared energy (such as a 
radiant room heater) can also interfere with the transmission of 
remote commands. 
Image size 
(diagonal)Horizontal distance from projector to 
screen
Minimum Maximum
300 inches* 
(762 cm)494 inches (12.6 m) 639 inches (16.2 m)
200 inches 
(508 cm)328 inches (8.4 m) 429 inches (10.9 m)
100 inches 
(254 cm)163 inches (4.2 m) 213 inches (5.4 m)
bottom 
multi-purpose 
button top 
multi-purpose 
button pointer 
button 
						

							EPSON PowerLite 5550C/7550C Multimedia Projector
4 - PowerLite 5550C/7550C Multimedia Projector9/99 This table summarizes the functions on the remote control.  
Using the Control Panel  
Although you must use the remote control to access custom 
features, such as functions assigned to the Effects buttons, you 
can use the control panel to perform most standard 
operations, such as selecting menu options, adjusting volume, 
or resizing the image on the screen.The following table summarizes the functions on the control 
panel.   
Projector Status Lights
The status lights on top of the projector tell you about its 
operating status.
Caution: A red indicator warns you if a serious problem occurs. 
Power Light
Button Function
Source Switches input source between computer and video. 
Menu Displays or hides the active menu. When a submenu is 
displayed, returns to the main menu.
Effects buttons Press each Effects button to use its assigned function. 
The function may be a factory default, or you can assign 
a new one with the optional ELP Link III software.
Pointer button Lets you navigate the menus. Press left or right to select 
menu options. Can also be used as a mouse pointer in 
place of the computer’s mouse pointer. (The projector 
must be connected to the computer with the mouse 
cable included with the projector, or with the ELP Link III 
mouse cable.)
Top multi-
purpose buttonActs as a right mouse click. Press to open submenus.
Bottom multi-
purpose buttonActs as a left mouse click. Press to open submenus.
AV/Mute Turns the projector’s audio and video output off and back 
on again—clears all special effects and displays a black, 
blue, or user-defined logo screen.
Resize Resizes the image on screen to match the resolution of 
your computer display.
Custom Lets you zoom the image using the top (zoom out) and 
bottom (zoom in) multi-purpose buttons. 
Freeze Keeps the current computer or video image on the 
screen until pressed again.
Help Displays the Help menu.
 – Volume +
 Adjusts the volume.
Power Turns the projector lamp on or off.
Enter button
Button Function
Power Turns the projector lamp on or off.
Source Switches the input source between computer and 
video. 
Menu Displays or hides the active menu.
Up, down arrows 
(Sync+/Sync-)Adjusts projector to match computer signal. Also lets 
you navigate menus.
Left, right arrows
(Tracking-/
Tracking+)Correct vertical fuzzy lines by matching the 
projector’s internal clock to various computer graphic 
signals (tracking adjustment). Change menu settings.
Enter Selects a menu option.
Resize Resizes the image on the screen to match the 
resolution of your computer display.
AV/Mute Turns the projector’s audio and video output off and 
back on again—clears special effects and displays a 
black, blue, or user-defined logo screen.
 – Volume +
 Adjusts the volume.
Help Displays the Help menu.
Light status Meaning
Steady orange  The projector is in sleep mode. (It is plugged in, but not 
projecting.)
Steady green  Power and projector lamp are on.
Flashing green  The projector is warming up. Allow about 30 seconds.
Flashing orange The projector is cooling down.
Off There is an internal projector problem, or the power to 
the projector has been cut off.
power light
projector lamp light
temperature light 
						

							EPSON PowerLite 5550C/7550C Multimedia Projector
9/99PowerLite 5550C/7550C Multimedia Projector - 5
Projector Lamp Light
Temperature Indicator
Cleaning the Air Filter  
Clean the air filter at the bottom of the projector after every 
100 hours of use. If it is not cleaned periodically, it can 
become clogged with dust, preventing proper ventilation. This 
can cause overheating and damage the projector. To clean the 
air filter, follow these steps:
1. Turn off the projector and unplug the power cable from the 
electrical outlet.
2. Place the projector on its side with the handle at the top so 
that the filter is easily accessible.
Note: Placing the projector in this position keeps dust from 
getting inside the projector housing.
3. Lift up the tab securing the air filter cover and remove the 
cover. (The air filter is attached to the inside of the cover.)4. Use a small vacuum cleaner designed for computers or other 
office equipment to clean the filter. If you don’t have one, 
use a dry, lint-free cloth. 
If the dirt is hard to remove or if the filter is torn, replace the 
air filter.
Note: An air filter comes with each replacement lamp (part 
number ELPLP07). 
5. Replace the air filter cover.
6. Plug the power cable back into the electrical outlet.
Replacing the Lamp   
The projector lamp typically lasts for about 2000 hours of use. 
It is time to replace the lamp when:
oThe projected image gets darker or starts to deteriorate
oThe projector lamp light is flashing orange and red 
alternately
oThe message LAMP REPLACE appears on the screen when 
the projector lamp comes on 
Warning: Let the lamp cool before replacing it. Also, don’t touch 
the glass portion of the lamp assembly; this can cause premature 
lamp failure. 
1. Turn off the projector and unplug the power cord from the 
electrical outlet and the projector. Wait at least 20 minutes 
for the bulb to cool.
2. Place the projector on its side with the handle on the top so 
you can easily access the lamp cover.
Note: Placing the projector in this position keeps dust from 
getting inside the projector housing.
3. Use a screwdriver, coin, or similar object to loosen the 
retaining screw on the lamp cover. When the screw is loose, 
lift off the lamp cover. (You cannot remove this screw from 
the cover.)
Light status Meaning
Orange and 
red flashing 
alternatelyProjector lamp needs to be replaced.
Steady red Projector lamp has burned out. Replace it to project 
images.
Flashing red There is a problem with the projector lamp, lamp power 
supply, or lamp fuse, or a circuit malfunctioned in the 
projector.
Off Lamp is functioning normally.
Light status Meaning
Flashing orange Projector is too hot.
Steady red Projector has turned off automatically because of 
overheating.
Flashing red There’s a problem with the cooling fan or temperature 
sensor.
Off The projector is functioning normally.
1
2air filter 
tab
2
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							EPSON PowerLite 5550C/7550C Multimedia Projector
6 - PowerLite 5550C/7550C Multimedia Projector9/99 4. Use a screwdriver, coin, or similar object to loosen the two 
screws holding the lamp assembly in position. (You cannot 
remove these screws either.) 
Caution: Don’t touch the glass portion of the lamp assembly; 
this can cause premature lamp failure.
5. Lift up the handle and pull out the lamp assembly.
6. Gently insert the new lamp assembly by sliding it into 
position. Make sure it’s inserted securely. Tighten the screws 
on the new lamp assembly.
7. Replace the lamp cover and tighten the cover screw. (Make 
sure the lamp cover is securely fastened. The projector won’t 
run if the lamp cover is open.)
Optional Accessories
The following optional accessories are available for the 
PowerLite 5550C and 7550C. To order, call EPSON 
Accessories at (800) 873-7766.
Information Reference List
Engineering Change Notices
None.
Technical Information Bulletins
None.
Product Support Bulletins
None.
Related Documentation
Accessory Part number
Replacement lamp and filter ELPLP07
Soft travel case for projector and laptop ELPKS13
Hard travel case ELPKS14
Wheeled soft travel case for projector and laptop ELPKS18
Computer cable ELPKC02
ELP Link III kit for PC for Windows (includes 
ELP Link III software and cables)ELPSW03
ELP Link III kit for Macintosh (includes ELP Link III 
software and cables)ELPSW04
Mac adapter set ELPAP01
Portable projection screen ELPSC06
2
1
CPD 8299 EPSON PowerLite 5550C/7550C User’s 
Guide
CPD  8319 EPSON PowerLite 5550C/7550C Portable 
Guide
TBD EPSON PowerLite 5550C/7550C 
Multimedia Projector Service Manual
PL-ELP5550C EPSON PowerLite 5550C Multimedia 
Projector Parts Price List 
PL-ELP7550 EPSON PowerLite 7550C Multimedia 
Projector Parts Price List