Dell Projector 7700 User Manual

							Specifications111
 NOTE: The lamp life rating for any projector is a measure of brightness 
degradation only, and is not a specification for the time it takes a lamp to fail 
and cease light output. Lamp life is defined as the time it takes for more than 
50 percent of a lamp sample population to have brightness decrease by 
approximately 50 percent of the rated lumens for the specified lamp. The lamp 
life rating is not guaranteed in any way. The actual operating life span of a 
projector lamp will vary according to operating conditions and usage patterns. 
Usage of a projector in stressful conditions which may include dusty 
environments, under high temperatures, many hours per day, and abrupt 
powering-off will most likely result in a lamp’s shortened operating life span or 
possible lamp failure. Lamp Philips 400 W user-replaceable lamp (up to 2000 
hours in eco mode; up to 1500 hours in normal 
mode) 
						

							112Specifications
RS232 Pin Assignment
RS232 Protocol 
• Communication Settings 
• Command types
To pop up the OSD menu and adjust the settings.
• Control command Syntax (From PC to Projector)
[H][AC][SoP][CRC][ID][SoM][COMMAND] 
•Example: Power ON Command (Send low byte firstly)
--> 0xBE, 0xEF, 0x10, 0x05, 0x00, 0xC6, 0xFF, 0x11, 0x11, 0x01, 0x00, 0x01
•Control Commands List 
To view the latest RS232 code, go to the Dell Support site at: support.dell.com.
Connection settingsVa l u e
Baud Rate 19,200
Data Bits 8
Pa r i t y N o n e
Stop Bits 1 
						

							Specifications113
PIP Combination Sources
HDMI-A HDMI-B VGA-A VGA-B Component
HDMI-A No No Yes Yes Yes
HDMI-B No No Yes Yes Yes
VGA-A Yes Yes No No No
VGA-B Yes Yes No No No
Component Yes Yes No No No
S-Video Yes Yes No No No
Composite Yes Yes No No No
Wireless Display No No Yes Yes Yes
USB Display No No Yes Yes Yes
USB Viewer No No Yes Yes Yes
S-Video Composite Wireless 
DisplayUSB 
DisplayUSB 
Viewer
HDMI-A Yes Yes No No No
HDMI-B Yes Yes No No No
VGA-A No No Yes Yes Yes
VGA-B No No Yes Yes Yes
Component No No Yes Yes Yes
S-Video No No Yes Yes Yes
Composite No No Yes Yes Yes
Wireless Display Yes Yes No No No
USB Display Yes Yes No No No
USB Viewer Yes Yes No No No 
						

							114Specifications
Compatibility Modes (Analog/Digital) 
ResolutionRefresh Rate (Hz)Hsync Frequency 
(KHz)Pixel Clock (MHz)
 640 x 350  70.08731.46925.175
 640 x 480  59.94031.46925.175
 640 x 480 p60 59.940 31.469 25.175
 720 x 480 p60 59.940 31.469 27.000
 720 x 576 p50 50.000 31.250 27.000
 720 x 400  70.08731.46928.322
 640 x 480  75.00037.50031.500
 848 x 48060.00031.02033.750
 640 x 480  85.00843.26936.000
 800 x 600  60.31737.87940.000
 800 x 600  75.00046.87549.500
 800 x 600  85.06153.67456.250
 1024 x 768  60.00448.36365.000
 1280 x 720 p50 50.000 37.500 74.250
 1280 x 720 p60 60.000 45.000 74.250
 1920 x 1080 i50 50.000 28.125 74.250
 1920 x 1080 i60 60.000 33.750 74.250
 1280 x 720  59.85544.77274.500
 1024 x 768  75.02960.02378.750
 1280 x 800  59.81049.70283.500
 1366 x 76859.79047.71285.500
 1360 x 768  60.01547.71285.500
 1024 x 768  84.99768.67794.500
 1440 x 900  59.88755.935106.500
 1152 x 864  75.00067.500108.000
1280 x 96060.00060.000108.000
 1280 x 1024  60.02063.981108.000
 1152 x 864  85.00077.095119.651
 1400 x 1050  59.97865.317121.750
1280 X 80084.88071.554122.500
 1280 x 1024  75.02579.976135.000
1440 X 90074.98470.635136.750
 1680 x 1050  59.95465.290146.250
1280 x 96085.00285.938148.500
 1920 x 108060.00067.500148.500
1400 X 105074.86782.278156.000
 1280 x 1024  85.02491.146157.000
1440 X 90084.84280.430157.000
 1600 x 1200  60.00075.000162.000 
						

							Contacting Dell115
Contacting Dell
For customers in the United States, call 800-WWW-DELL (800-999-
3355). 
 NOTE: If you do not have an active Internet connection, you can find contact 
information on your purchase invoice, packing slip, bill, or Dell product catalog. 
Dell™ provides several online and telephone-based support and service 
options. Availability varies by country and product, and some services may 
not be available in your area. To contact Dell for sales, technical support, 
or customer service issues:
1Visit support.dell.com.
2Verify your country or region in the Choose A Country/Region drop-
down menu at the bottom of the page. 
3Click Contact Us on the left side of the page.
4Select the appropriate service or support link based on your need.
5Choose the method of contacting Dell that is convenient for you. 
						

							116Glossary
Appendix: Glossary
ANSI LUMENS — A standard for measuring the brightness. It is calculated by 
dividing a square meter image into nine equal rectangles, measuring the lux (or 
brightness) reading at the center of each rectangle, and averaging these nine 
points.
A
SPECT RATIO — The most popular aspect ratio is 4:3 (4 by 3). Early television and 
computer video formats are in a 4:3 aspect ratio, which means that the width of 
the image is 4/3 times the height.
Brightness — The amount of light emitted from a display or projection display or 
projection device. The brightness of projector is measured by ANSI lumens.
Color Temperature — The color appearance of white light. Low color 
temperature implies warmer (more yellow/red) light while high color temperature 
implies a colder (more blue) light. The standard unit for color temperature is 
Kelvin (K).
Component Video — A method of delivering quality video in a format that 
consists of the luminance signal and two separate chrominance signals and are 
defined as YPbPr for analog component and YCbCr for digital component. 
Component video is available on DVD players.
Composite Video — A video signal that combines the luma (brightness), chroma 
(color), burst (color reference), and sync (horizontal and vertical synchronizing 
signals) into a signal waveform carried on a single wire pair. There are three kinds 
of formats, namely, NTSC, PAL, and SECAM.
Compressed Resolution — If the input images are of higher resolution than the 
native resolution of the projector, the resulting image will be scaled to fit the 
native resolution of the projector. The nature of compression in a digital device 
means that some image content is lost.
Contrast Ratio — Range of light and dark values in a picture, or the ratio between 
their maximum and minimum values. There are two methods used by the 
projection industry to measure the ratio:
1Full  On/Off — measures the ratio of the light output of an all white image (full 
on) and the light output of an all black (full off) image. 
2ANSI — measures a pattern of 16 alternating black and white rectangles. The 
average light output from the white rectangles is divided by the average light 
output of the black rectangles to determine the 
ANSI contrast ratio. 
Full On/Off contrast is always a larger number than ANSI contrast for the same 
projector. 
						

							Glossary117
dB — decibel — A unit used to express relative difference in power or intensity, 
usually between two acoustic or electric signals, equal to ten times the common 
logarithm of the ratio of the two levels. 
Diagonal Screen — A method of measuring the size of a screen or a projected 
image. It measures from one corner to the opposite corner. A 9 ft high and 12 ft 
wide, screen has a diagonal of 15 ft. This document assumes that the diagonal 
dimensions are for the traditional 4:3 ratio of a computer image as per the example 
above. 
DHCP — Dynamic Host Configuration Protocol — A network protocol that 
enables a server to automatically assign a TCP/IP address to a device.
DLP
® — Digital Light Processing™ — Reflective display technology developed by 
Texas Instruments, using small manipulated mirrors. Light passing through a color 
filter is sent to the DLP mirrors which arrange the RGB colors into a picture 
projected onto screen, also known as DMD.
DMD — Digital Micro-Mirror Device — Each DMD consists of thousands of 
tilting, microscopic aluminum alloy mirrors mounted on a hidden yoke.
DNS — Domain Name System — An Internet service that translates domain 
names into IP addresses.
Focal Length — The distance from the surface of a lens to its focal point.
Frequency — It is the rate of repetition in cycles per seconds of electrical signals. 
Measured in Hz (Hertz).
HDCP — High-Bandwidth Digital-Content Protection — A specification 
developed by Intel™ Corporation to protect digital entertainment across digital 
interface, such as DVI, HDMI.
HDMI — High-Definition Multimedia Interface — HDMI carries both 
uncompressed high definition video along with digital audio and device control 
data in a single connector.
Hz (Hertz) — Unit of frequency.
IEEE802.11 — A set of standards for wireless local are network (WLAN) 
communication. 802.11b/g/n uses the 2.4 GHz band.
Keystone Correction — Device that will correct an image of the distortion 
(usually a wide-top narrow-bottom effect) of a projected image caused by 
improper projector to screen angle.
Maximum Distance — The distance from a screen the projector can be to cast an 
image that is usable (bright enough) in a fully darkened room. 
Maximum Image Size — The largest image a projector can throw in a darkened 
room. This is usually limited by focal range of the optics.  
						

							118Glossary
Minimum Distance — The closest position that a projector can focus an image 
onto a screen.
NTSC — National Television Standards Committee. North American standard for 
video and broadcasting, with a video format of 525 lines at 30 frames per second.
PAL — Phase Alternating Line. A European broadcast standard for video and 
broadcasting, with a video format of 625 lines at 25 frames per second.
Reverse Image — Feature that allows you to flip the image horizontally. When 
used in a normal forward projection environment text, graphics, etc. are 
backwards. Reverse image is used for rear projection.
RGB — Red, Green, Blue — typically used to describe a monitor that requires 
separate signals for each of the three colors.
S-Video — A video transmission standard that uses a 4-pin mini-DIN connector 
to send video information on two signal wires called luminance (brightness, Y) and 
chrominance (color, C). S-Video is also referred to as Y/C.
SECAM — A French and international broadcast standard for video and 
broadcasting, closely related to PAL but with a different method of sending color 
information.
SSID — Service Set Identifiers — A name used to identify the particular wireless 
LAN to which a user wants to connect.
SVGA — Super Video Graphics Array — 800 x 600 pixels count.
SXGA — Super Extended Graphics Array, — 1280 x 1024 pixels count.
UXGA — Ultra Extended Graphics Array — 1600 x 1200 pixels count.
VGA — Video Graphics Array — 640 x 480 pixels count.
WEP — Wired Equivalent Privacy — This is a method for encrypting 
communication data. The encryption key is created and notified only to the 
communicating user, so the communication data cannot be decrypted by a third 
party.
XGA — Extended Video Graphics Array — 1024 x 768 pixels count.
WXGA — Wide Extended Graphics Array — 1280 x 800 pixels count.
1080p — 1080p is the shorthand identification for a set of HDTV high-definition 
video modes that are characterized by 1080 horizontal lines of resolution and 
progressive scan, meaning the image is not interlaced as is the case with the 1080i 
display standard.
Zoom Lens — Lens with a variable focal length that allows operator to move the 
view in or out making the image smaller or larger. 
Zoom Lens Ratio — Is the ratio between the smallest and largest image a lens can  
						

							Glossary119
the project from a fixed distance. For example, a 1.4:1 zoom lens ratio means that 
a 10 foot image without zoom would be a 14 foot image with full zoom.  
						

							120Index
Index
A
Adjusting the Projected Image 26
Elevator button
 26
lower the projector
Elevator foot
 26
Tilt adjustment wheel
 26
Lowering the Projector Height
 
26
Raising the Projector Height
 26
Adjusting the Projector Zoom and 
Focus
 27
Focus ring
 27
Horizontal lens shift knob
 27
Lens shift lock
 27
Side door
 27
Vertical lens shift knob
 27
Zoom ring
 27
C
Changing the Lamp 106
Connecting the Projector
12 V DC Plug
 23
3 RCA to 3 RCA Component 
Video (Male to Male) cable
 
20
Composite Video cable
 18
Connecting a Computer with a 
RS232 cable
 14, 15
Connecting with a Component 
Cable
 19Connecting with a Composite 
Cable
 18
Connecting with an HDMI 
Cable
 21
Connecting with an S-video 
Cable
 17
HDMI cable
 21, 22
Motorized projection screen
 23
Power cord
 12, 13, 14, 15, 17, 
18, 19, 20, 21, 22, 23, 24
RS232 (9-pin D-sub female to 
female pin2-3 swap) cable
 
14, 24
S-Video cable
 17
To Computer
 12
USB to USB cable
 12
USB-A to USB-B cable
 15
VGA to VGA cable
 12, 13
VGA to YPbPr cable
 19
Connection Ports
+12 V DC out connector
 10
Audio input connector
 10
Audio output connector
 10
Component Video input 
connector
 10
Composite Video connector
 10
HDMI-A connector
 10
HDMI-B connector
 10
Mini USB (Mini Type B) 
connector for remote 
control
 10
Power cord connector
 10