Knoll Projector HD284 User Manual

HD284  
HDTV  
DLP Projector  
Users Manual v1.3  
 
3
TABLE OF CONTENTS  
Safety Warnings  
Safety Instructions  
2
4
Introduction/Usage guidelines  
5
Setting up and positioning the projector  
Projection distances  
Video device connections  
6
7
8
Displaying a video image  
Connecting a computer  
10  
11  
12  
12  
Shutting down the projector  
Troubleshooting your setup  
Using the keypad buttons  
Using the remote control  
Optimizing video images  
Customizing the projector  
15  
16  
17  
17  
Using the menus  
Picture menu  
Settings menu  
17  
18  
22  
Maintenance  
Cleaning the lens  
Replacing the projection lamp  
24  
24  
25  
Specifications  
Red LED behavior and projector errors  
Source compatibility  
26  
27  
27  
Projector dimensions for ceiling mount installations 29  
RS-232 terminal specifications  
30  
Warranty  
34  
 
4
SAFETY INSTRUCTIONS  
Please read and follow all safety instructions provided BEFORE using your new projector. Failure to  
comply with safety instructions may result in fire, electrical shock, or personal injury and may damage or  
impair protection provided by equipment. Please save all safety instructions.  
Safety Definitions:  
Warning: Statements identify conditions or practices that could result in personal injury.  
Caution: Statements identify conditions or practices that could result in damage to your equipment.  
Safety Symbols:  
Attention: For information about usage of a feature, please refer to the User’s Guide.  
Warning: Hot surface. Do not touch.  
An arrow pointing to the lamp door on the projector.  
Safety Terms:  
Warning: Don’t look directly into the lens when the lamp is turned on.  
Warning: To replace the lamp, turn off the projector and unplug the power cord. To avoid burns, wait  
30 minutes before opening the lamp door. Follow all instructions provided in this User’s Guide.  
Warning: Please use the power cord provided. Connect the power cord to a receptacle with a  
protective safety (earth) ground terminal.  
Warning: Refer all service to qualified service personnel. Servicing your own projector will void the  
warranty. See the following page for the technical support contact information.  
Caution: Don’t block ventilation openings. Use of an unauthorized ceiling mount may lead to ventilation  
blockage and/or personal injury.  
Caution: Don’t subject projector to prolonged exposure to smoke.  
Caution: Don’t set liquids on the projector. Spilled liquids may damage your projector.  
Caution: Don’t place the projector on a hot surface or in direct sunlight.  
Caution: Do not drop the projector. Transport the projector in a Knoll approved shipping carton.  
Important Operating Considerations  
Do not place any objects along the side or  
the front of the projector for at least 2 feet  
(0.6m).  
Do not place the projector on a tablecloth or  
other soft covering that may block the  
vents.  
Do not use a non-Knoll ceiling mount. In  
the unlikely event of the bulb rupturing,  
thoroughly clean the area around the  
projector and discard any edible items  
placed in that area.  
 
5
INTRODUCTION  
The Knoll HD284 Introduction  
Congratulations and thank you for your choice of a superior digital image projection device. Your  
new Knoll HD284 is specifically designed for home cinema applications. The HD284 sets new  
standards for high-definition digital perfection, featuring true High Definition 1280x720 resolution  
using the latest DLP™ technology and new DCDi video processing from Faroudja™. Calibrated  
to D65 color mastering standards, the HD284 reproduces colors and details the way the director  
intended. Whether you are watching movies or High Definition broadcasts or playing the latest  
video game, you will enjoy breathtaking image quality.  
Usage Guidelines  
1. Do not look directly into the projection lens when the lamp is turned on. The bright light may  
harm your eyes.  
2. Do not block the grills on the projector. Restricting the airflow can cause it to overheat and turn  
off. If this happens, you must wait a minute before turning it back on.  
3. Handle the projector as you would any product with glass components. Be especially careful  
not to drop it.  
4. Avoid leaving the projector in direct sunlight or extreme cold for extended periods of time. If  
this happens, allow it to reach room temperature before use.  
5. Transport the  
projector in a  
vendor-approved  
hard or soft case.  
6. Do not subject  
projector to  
prolonged  
exposure to  
smoke. Smoke  
may cause  
damage to the  
projector.  
 
6
SETTING UP THE PROJECTOR  
There are a number of factors to consider when determining where to set up the projector,  
including the size and shape of your screen, the location of your power outlets, and the distance  
between the projector and the rest of your equipment. But here are some general guidelines.  
NOTE: To ensure adequate cable access, do not place the  
projector within 6 inches (.15m) of a wall or other object.  
Position the projector on a flat surface at a right angle to the screen.  
The projector should be within 10 feet (3 m) of your power source and within 6 feet (1.8 m) of  
your video source(s), unless good quality extension cables are to be used.  
When installing the projector on the ceiling, refer to the installation guide that comes with the  
Ceiling Mount Kit for more information. Knoll recommends use of an authorized Knoll CM25  
ceiling mount. The addition of a CM20+6 extension bar lowers the projector 6” per bar as  
required. The ceiling mount kit may be sold separately.  
Position the projector the desired distance from the screen.  
NOTE: The projector must be at least 5.6 feet (1.7 m) from the projection screen.  
The distance from the lens of the projector to the screen, the zoom setting, and the video format  
determine the size of the  
projected image.  
Projector Positioning  
The projected image becomes  
larger as the distance between  
the unit and screen increases.  
The HD284 manual zoom allows  
the distance from the screen to  
be within a minimum and  
maximum range. See the chart  
on the next page for details. The  
example on the right shows a  
very large image 10’ high by  
17.8’ wide. Note the bottom of  
the image starts about 1.6’ above  
the lens center with a horizontally  
or flat mounted projector.  
 
7
HD284 Projection Distances 16:9 Image  
Screen Diagonal  
Min. Distance  
Max. Distance  
Screen Offset  
92” 103” 106” 110” 122.5” 146.75” 165.25”  
133.3” 149.6” 153.3” 160” 178.33” 213.33” 214”  
166.6” 187” 191.6” 200” 222.9” 266.6 299”  
7.3” 8.2” 8.4” 8.8” 9.8”  
11.7”  
15”  
Note: Maximum distance to screen (16.9) = 1.816 x screen diagonal size  
Minimum distance to screen (16.9) = 1.452 x screen diagonal size  
Screen offset (image drop or rise) (16.9) = 0.08 x screen diagonal size  
Rear Connector Panel  
The projector provides eight discreet video connectors:  
two component RCA, two S-video, one composite RCA, one M1-DA (HD, DVI, and computer),  
one VESA (HD, HD component, and computer) and one component D5.  
It also has a mini-jack input for a Knoll, Niles or Xantech-compatible IR repeater and an RS-232 connector  
for serial control. The Command Line Interface (CLI) specifications and commands are listed in the  
Appendix.  
Two 3.5 mm mini-  
jack triggers  
provide 12-volt  
current. Trigger 1  
provides a con-  
stant output while  
the projector is on.  
If you connect your  
projection screen  
to Trigger 1, when  
you turn on the  
projector the  
screen will move  
down; when you  
turn the projector  
off, the screen will  
return to the  
storage position.  
Trigger 2 provides  
a 4:3 aspect  
trigger. When you  
select 4:3 in the  
Aspect Ratio menu  
or from the Resize  
button on the  
remote, a 12v  
signal will be sent  
after a five second  
delay. Use this  
trigger for screens  
with 4:3 aspect  
curtains. When  
you switch back to  
16:9 format, the  
curtains open to  
reveal the entire screen.  
 
8
Video Connections  
1. Place the projector on a flat surface or using a ceiling mount kit, on the ceiling.  
If you want to project from behind a rear projection screen, set up the projector behind  
your screen.  
2. Position the projector the desired distance from the screen.  
The distance from the lens of the projector to the screen and the zoom setting determine  
the size of the projected image. See the table on page 7 for maximum and minimum  
distances for a given screen size.  
3. Make sure the projector and source equipment and/or computer are turned off.  
Make sure the projector is unplugged and your equipment is turned off.  
WARNING: Do not place the projector on a tablecloth or other soft covering that may block the vents.  
Do not use a non-Knoll ceiling mount. In the unlikely event of the bulb rupturing, thoroughly clean the  
area in front of the projector and discard any edible items placed in that area.  
Connecting a Video Device  
You can connect VCRs, DVD players, camcorders, digital cameras, video games, HDTV receivers, and TV  
tuners to the projector. (You cannot directly connect the coaxial cable that enters your house from a cable or  
satellite company; the signal must pass through a tuner first. Examples of tuners are digital cable boxes,  
VCRs, digital video recorders, and satellite TV boxes. Basically, any device that can change channels is  
considered a tuner.) Audio must be provided by your own speakers, as the projector has no separate audio  
controls. If  
there is more  
than one  
output, select  
the highest  
quality one.  
DVI  
Component  
video and  
RGB (M1,  
HD15) have  
the best  
quality,  
followed by S-  
video, and  
then  
composite  
video.  
 
9
Connecting a Video Device  
If your video device has more than one output, select the highest quality one. DVI video has the best quality,  
followed by Component video, S-video, and then composite video.  
If the video  
device uses  
component  
cable  
connectors,  
plug the cable’s  
green con-  
nectors into the  
green  
component-out  
connector on  
the video device  
and into the  
green  
component  
connector  
(labeled “Y”) on  
the projector.  
Plug the  
component  
cable’s blue  
connectors into  
the blue  
component-out  
connector on  
the video device  
and into the  
blue component  
connector  
(labeled “Pb”)  
on the projector.  
Plug the  
component  
cable’s red  
connectors into  
the red  
component-out  
connector on  
the video device  
and into the red  
component  
connector  
(labeled “Pr”) on  
the projector.  
If the video device uses a round, four-prong S-video connector, plug an S-video cable into the S-video  
connector on the video device and into the S-video connector on the projector.  
If the video device uses a yellow composite video connector, plug a composite video cable’s yellow  
connector into the video-out connector on the video device. Plug the other yellow connector into the yellow  
Video connector on the projector.  
If the video device uses a DVI connector, plug an M1-D cable into the video-out connector on the video  
device. Plug the other connector into the M1-DA connector on the projector.  
 
10  
If the video device uses a VESA connector, plug a VESA cable into the video-out connector on the video  
device. Plug the other connector into the VESA connector on the projector.  
Connecting the power cable  
Connect the power cable to the connector on the back of the projector and to your electrical outlet. The  
Power LED on the keypad turns solid green.  
NOTE: Always use the power cable that shipped with the projector.  
Displaying an Image (Video or Computer)  
Displaying a video image  
Remove the lens cap.  
Press the Power button on the top of the projector or the power button on the remote  
The projector chimes if the chime feature is enabled. The LED flashes green and the fans start to run. When  
the lamp comes on, the startup screen displays and the LED is steady green. It can take a minute for the  
image to achieve full brightness.  
.
Plug in and turn on the video device.  
An image from the video device should appear on the projection screen. If it doesn’t, press the Source  
button on the keypad.  
Adjust the height of the projector by pressing the release button to extend the elevator foot. Rotate the  
leveling foot, if necessary.  
Position the projector the desired distance from the screen at a 90-degree angle to the screen. See page 7  
for a table listing screen projected image sizes and distances to the screen. Adjust the zoom and/or focus  
rings by rotating them until the desired image size and sharpness are produced.  
 
11  
If the image is not square, adjust the keystone using the buttons on the keypad. Press the upper Keystone  
button to reduce the width of the upper portion of the image, and press the lower Keystone button to reduce  
the width of the lower portion.  
The Contrast, Brightness, Color, and Tint are factory calibrated to D65 colors, but you can adjust these  
settings in the Picture menu if necessary.  
Connecting to a computer  
Connect either a VESA cable or M1 cable into the appropriate connector on the projector. Connect the other  
end to the video port on your computer. If you are using a desktop computer, you first need to disconnect  
the monitor cable from the computer’s video port.  
You can control the projector from an LCD control panel or computer by connecting a RS-232 cable to the  
projector’s Serial connector. Specific RS-232 commands can be found in the Appendix.  
 
12  
Shutting down the projector  
Power Save  
The projector has a Power Save feature in the System menu that automatically turns the lamp off after no  
signals are detected for 20 minutes. After 10 additional minutes with no signal, the projector powers down. If  
an active signal is received before the projector powers down, the image is displayed. You must press the  
Power button to display an image after 30 minutes have passed.  
Turning off the projector  
To turn off the projector, press the Power button. The lamp turns off and the LED blinks green for about one  
minute while the fans continue to run to cool the lamp. When the lamp has cooled, the LED lights green and  
the fans stop. Unplug the power cable to completely power off the projector.  
Troubleshooting your setup  
If your image appears correctly on the screen, skip to the next section. If it does not,  
troubleshoot the setup.  
The LED on top of the projector’s keypad indicates the state of the projector and can  
help you troubleshoot.  
 
13  
The following table shows some potential problems. In some cases, more than one possible solution is  
provided. Try the solutions in the order they are presented. When the problem is solved, you can skip the  
additional solutions.  
 
14  
 
15  
Using the projector keypad buttons  
Most buttons are described in detail in other sections, but here is an overview of their functions:  
Power–turns the projector on and off.  
Menu–opens the on-screen menus.  
Select–confirms choices made in the menus.  
Up/down arrows–navigates to and adjusts settings in the menus.  
Auto image–resets the projector to the source.  
Presets–cycles through the three available user preset settings.  
Keystone–adjusts squareness of the image.  
Brightness–adjusts intensity of the image.  
Resize–changes the aspect ratio.  
Source–changes the active source.  
 
16  
Using the remote control  
The remote uses two (2) provided AAA batteries. They are easily installed by sliding the cover off the  
remote’s back, aligning the + and - ends of the batteries, sliding them into place, and then replacing the  
cover.  
To operate, point the remote at the projection screen or at the projector (not at the video device or  
computer). The range of optimum operation is 1 to 30 feet (9.14m).  
Press the remote’s Menu button to open the projector’s menu system. Use the arrow buttons to navigate,  
and the Select button to select features and adjust values in the menus. The remote also has:  
Power button to turn the projector on and off  
Backlight button to light the remote’s buttons in the dark  
Brightness and Contrast buttons to adjust the image  
Blank button to display a blank screen instead of the current image (to change the color of the screen)  
Source buttons to switch among sources and a source toggle  
Resize button to change the Aspect Ratio  
Auto Image button to resynch the projector to the source  
Preset button to restore stored settings  
Overscan button to remove noise in a video image  
Troubleshooting the remote  
Make sure the batteries are installed in the proper orientation and are not dead.  
Try installing fresh alkaline batteries.  
Make sure you’re pointing the remote at the projector or the screen, not at the video  
device or the computer, and are within the remote range of 30 feet (9.14m).  
 
17  
Optimizing video images  
After the video device is connected properly and the image is on the screen, you can optimize the image  
using the onscreen menus.  
Change the Aspect ratio. Aspect ratio is the ratio of the image width to image height. TV screens are usually  
1.33:1, also known as 4:3. HDTV and most DVDs are 1.78:1, or 16:9. Choose the option that best fits your  
input source in the menus, or press the Resize button on the remote to cycle through the options.  
Adjust the Keystone, Contrast, Brightness, Color, or Tint in the Picture menu.  
Select a different Color Temperature or use the Color Control to adjust the gain and offset of the red, green,  
and blue color.  
Select a specific Color Space or Gamma.  
Select a different Video Standard. Auto tries to determine the standard of the incoming video. Select a  
different standard if necessary.  
Turn overscan on to remove noise around the video image.  
Fine tune component inputs using the TrueLife™ adjustments.  
Choose High Power to maximize the light output.  
Make sure your DVD player is set for a 16:9 television. See your DVD player’s user’s guide for instructions.  
Customizing the projector  
You can customize the projector for your specific setup and needs.  
For rear projection, turn Rear mode on in the Settings>System menu.  
For ceiling mounted projection, turn Ceiling mode on in the Settings>System menu.  
Turn the projector’s display messages and power-on chime on and off.  
Turn on power saving features.  
Specify blank screen colors and startup logos. Make the menus translucent.  
Specify the menu language.  
Using the menus  
To open the menus, press the menu button on the  
keypad or remote. (The menus automatically close  
after 60 seconds if no buttons are pressed.) The Main  
menu appears. Use the arrow buttons to move up and  
down to highlight the desired submenu, then press the  
Select button.  
To change a menu setting, highlight it, press Select,  
then use the up and down arrow buttons to adjust the  
value, select an option using radio buttons, or turn the feature on or off using check boxes. Press Select to  
confirm your changes. Use the arrows to navigate to another setting. When your adjustments are complete,  
navigate to Exit, then press Select to go to the previous menu; press the Menu button at any time to close  
the menus.  
Dots appear before the menu name. The number of dots  
indicate the menu’s level, ranging from one (the Main  
menu) to four (the most nested menus).  
 
18  
The menus are grouped by usage:  
The Picture menu provides image adjustments.  
The Settings menu provides set-up type adjustments that are not changed often.  
The About menu provides a read-  
only display of information about  
the projector and source.  
Certain menu items may be hidden  
until a particular source is  
connected. For example, Tint is  
only available for NTSC video  
sources and will be hidden when  
other sources are active. Other  
menu items may be grayed out when they are not available. For example, Brightness is grayed out until an  
image is active.  
Picture menu  
To adjust the following five settings, highlight the setting,  
press Select, use the up and down arrows to adjust the  
values, then press select to confirm the changes.  
Keystone: adjusts the image vertically and makes a  
squarer image. You can also adjust keystone from the  
keypad.  
Contrast: controls the degree of difference  
between the lightest and darkest parts of the picture and changes the amount of black and white in the  
image.  
Brightness: changes the intensity of the image. You can also adjust brightness from the keypad.  
Color: (video sources only) adjusts a video image from black and white to fully saturated color.  
Tint: (NTSC video sources only) adjusts the red-green color balance in the image.  
Aspect Ratio: Aspect ratio is the ratio of the image width to  
image height. TV screens are usually 1.33:1, also known as  
4:3. HDTV and most DVDs are 1.78:1, or 16:9. You can  
choose Native, 4:3, 16:9, Letterbox, or Natural Wide. The  
default is 16:9. The goal is to show the most detail on the  
screen while preserving the ratio of width to height. The native  
resolution of the projector is 1280x720. Use Native, 4:3 or  
Natural Wide for 4:3 input sources; use Native, 16:9 or  
Letterbox for 16:9 input. Pressing the Resize button on the  
remote cycles through these options.  
 
19  
Native: this mode bypasses the internal scaler, displaying the image with no resizing.  
Since the native resolution is 1280x720 and 4x3 video images are approximately  
640x480, 4x3 images will always be smaller than the display and will be centered in the  
display. Computer images 1024x768 or smaller will also be centered in the display. If a  
16x9 video source or a 1280x1024 or larger computer source is viewed, it will display up  
to 1280 pixels and 720 lines from the center of the input.  
16:9: the default is 16:9, which preserves the 16:9 aspect ratio and is designed to be  
used with content that is Enhanced for Widescreen TVs.  
4:3: resizes the image from its original version to fit a standard 4:3 aspect ratio screen. If  
you have a 4:3 source on a 16:9 screen, the image is placed in a 16:9 space, so black  
bars appear at the sides of the image.  
Letterbox: preserves the 16:9 aspect ratio. If you have a 16:9 source and screen, the  
image fills the screen. If your source is letterboxed, the image expanded to fill the  
screen.  
 
20  
Natural Wide: this mode stretches a 4:3 image to fill the entire 16:9 screen. The center  
two-thirds of the image is unchanged; the edges of the image are stretched.  
Presets: This allows you to customize settings and save the settings to be restored later. To restore the  
factory default settings, choose Factory Reset in the Settings>Service menu.  
To set a preset for the current source, adjust the image, select Save Settings in the Presets menu, then  
choose Save User 1, 2, or 3. You can recall these settings in the future by selecting the appropriate user  
presets.  
 
21  
Advanced settings  
TrueLife: This option refers to Faroudja’s  
TrueLife processing of the image. All standard  
definition interlaced video signals (composite,  
S-video and component) are routed through  
this processor. Extended and High Definition  
progressive component sources are not  
routed though this processor by default. You  
can turn TrueLife on to route these signals  
through the processor and then adjust the  
following 2 options:  
Chroma Detail: This adjusts the color  
sharpness.  
Luma Detail: This adjusts the sharpness.  
Noise Reduction: adjusts signal noise  
reduction. Choose Off to have no noise  
reduction, choose Auto to have the software  
determine the amount of noise reduction, or  
choose Manual and adjust the Level.  
Skintone Bypass prevents the noise reduction processing from being applied to skin tones. Images of  
people often look better with less processing. Available when Auto or Manual are selected.  
CCS: (Cross Color Suppression) processes the signal to remove any color information from the luma portion  
of the signal. It is On for all composite signals, Off for all component signals, and can be turned on or off for  
all S-video signals.  
NTSC 2:2 Pulldown: Turn this feature on to correctly display NTSC signals created from 30-frames/second-  
source material (instead of the film standard 24 frames/ second).  
2:2/3:2 Off: Turn this feature on to turn off film mode detection. Some video material (especially film  
animation) is difficult to distinguish from film.  
Color Space: This option applies to computer and HDTV  
sources (it won’t appear in the menu for video sources). It  
allows you to select a color space that has been specifically  
tuned for the video input. When Auto is selected, the  
projector automatically determines the standard. To choose  
a different setting, turn off Auto, then choose RGB for  
computer sources, choose REC709 for component 1080i or  
720p sources, or choose REC601 for component 480p or  
576p sources.  
Color Temperature: changes the intensity of the colors. Select  
a listed value.  
 
22  
Color Control: allows you to individually adjust the gain  
(relative warmth of the color) and the offset (the amount of black  
in the color) of the red, green, and blue colors.  
Gamma: Gamma tables contain preset intensity configurations  
optimized for the input source. You can select a gamma table  
that has been specifically tuned for either film, video, Bright  
Room, or PC input. (Film input is material originally captured on  
a film camera, like a movie; video input is material originally  
captured on a video camera, like a TV show or sporting event.)  
NOTE: Your viewing preferences may vary. Cycle through  
the gamma options and pick the one you like the best.  
Video Standard: When it is set to Auto, the projector  
attempts to pick the video standard automatically based on  
the input signal it receives. (The video standard options may  
vary depending on your region of the world.) If the projector is  
unable to detect the correct standard, the colors may not look  
right or the image may appear “torn.” If this happens,  
manually select a video standard by selecting NTSC, PAL, or  
SECAM from the Video Standard menu.  
Overscan: (video sources only) removes noise around the video image.  
The following options are for computer or HDTV sources only  
Phase: adjusts the phase of the video signal’s digital conversion.  
Tracking: adjusts the frequency of the video signal’s digital conversion.  
Horizontal/Vertical Position: adjusts the position of the source.  
Settings menu  
Sources: allows you to assign a particular  
input to a specific source key on the remote  
and enables or disables Autosource. When  
Autosource is not checked, the projector  
defaults to the last-used source. If no source is  
found, a blank screen displays. When  
Autosource is checked, the projector checks  
the last-used source first at power up. If no signal is  
present, the projector checks the sources in order  
until a source is found or until power down.  
 
23  
The Source Enable feature is used to eliminate  
certain sources from this search, which will speed the  
search. By default, the check boxes for all sources  
are checked. Uncheck a source’s box to eliminate it  
from the search.  
System  
All options in this menu toggle between on and off.  
Rear: reverses the image so you can project from  
behind a translucent screen.  
Ceiling: turns the image upside down for ceiling-  
mounted projection.  
NOTE: It is recommended that all final image adjustments in Ceiling mode are made once the unit has fully  
warmed up (approximately 20 minutes).  
Auto Power: When Auto Power is checked, the projector automatically goes into the startup state after the  
projector receives power. This allows control of ceiling mounted projectors with a wall power switch.  
Display Messages: displays status messages (such as “Searching”) in the lower-left corner of the screen.  
High Power: Turn this on to increase the light output of the lamp. This also shortens lamp life and increases  
fan noise.  
Translucent OSD: makes the menus translucent. This prevents the image from being completely covered  
by the menus while you are making image adjustments.  
Chime: turn this on to hear a sound when the Power button is pressed.  
Power Save: when On, the lamp is automatically turned off after no signals are detected for 20 minutes.  
After 10 additional minutes with no signal, the projector powers down. If an active signal is received before  
the projector powers down, the image will be displayed.  
Startup Logo: allows you to display a blank Black, White, or Blue screen  
instead of the default screen at startup and when no source is detected.  
 
24  
Blank Screen: determines what color displays when you press  
the Blank button on the remote or when no source is active.  
Language: allows you to select a language for the onscreen  
display of menus and messages.  
Service Menu  
Use these features, highlight them and press Select.  
Factory Reset: restores all settings (except Lamp Hours, Ceiling, and Rear) to their default after displaying  
a confirmation dialog box.  
Test Pattern: displays a test pattern when the Blank button on the remote is pressed. To select the  
patterns, use the up/down arrows on the remote or keypad.  
Service Code: only used by authorized service personnel.  
Maintenance  
Cleaning the lens  
Apply a non-abrasive camera lens cleaner to a soft, dry cloth.  
Avoid using an excessive amount of cleaner, and  
don’t apply the cleaner directly to the lens.  
Abrasive cleaners, solvents or other harsh  
chemicals might scratch the lens.  
Lightly wipe the cleaning cloth over the lens in a  
circular motion. If you don’t intend to use the  
projector immediately, replace the lens cap.  
 
25  
Replacing the projection lamp  
The lamp hour timer in the About menu counts the number of hours the lamp has been in use. After 1980  
hours, the message “Change lamp” briefly appears on the screen at each startup. To maintain optimal video  
performance, we recommend changing the lamp after 2000 hours, depending on usage. You can order new  
lamp modules from your dealer.  
.
1. Turn off the projector and unplug the power cable.  
2. Wait 60 minutes to allow the projector to cool thoroughly.  
3. Turn the projector upside down and remove the lamp door by  
removing the two screws and sliding the lamp door tabs out of  
the three tab bays.  
CAUTION: Never operate the projector with the lamp door  
removed. This disrupts the airflow and causes the projector to  
overheat.  
4. Loosen the captive screw on the lamp module.  
WARNINGS:  
To avoid burns, allow the projector to cool for at least 60 minutes before you replace the lamp.  
Do not drop the lamp module. The glass may shatter and cause injury.  
Do not touch the glass lamp screen. Fingerprints can obscure projection sharpness.  
Be extremely careful when removing the lamp module. In the unlikely event that the lamp ruptures, small  
glass fragments may be generated. The lamp module is designed to contain most of these fragments, but  
use caution when removing it.  
5. Carefully remove the lamp module by grasping and lifting the metal bail wire. Dispose of the lamp in an  
environmentally proper manner.  
6. Install the new lamp module. Make sure that it is properly seated.  
 
26  
7. Tighten the single screw.  
8. Replace the lamp door by sliding the tabs into the tab bays and tightening the two screws.  
9. Plug in the power cable, then press the Power button to turn the projector back on.  
10. Reset the lamp hour timer.  
Resetting the lamp timer  
To reset the lamp age, simultaneously holding down the two Brightness buttons on the projector’s keypad  
for 10 seconds.  
Using the security lock  
The projector has a security lock for use with a PC Guardian Cable Lock System. This lock needs to be  
order from Knoll Systems. Refer to the information that comes with the lock for instructions on how to use it.  
Specifications  
Temperature Operating  
50 to 95° F (10 to 35° C) at 0 - 10,000 feet  
Non-operating  
-4 to 158° F (-20 to 70° C) at 0 -20,000 feet  
Altitude Operating  
Non-operating  
0 to 10,000 feet (3,048 meters)  
0 to 20,000 feet (6,096 meters)  
Humidity Operating  
Non-operating  
10 percent to 95 percent relative humidity, non-condensing  
10 percent to 95 percent relative humidity, non-condensing  
Dimensions  
Weight  
13.8 x 12.8 x 4.3” (351W x 325L x 110H mm)  
9.3 lbs. (4.24 kg) unpacked  
Optics Focus Range  
Lamp Type  
5 - 32.8 feet (1.5 – 10 meters)  
UHP lamp (dual watt: 200 and 250 watt)  
Model SP-Lamp-006  
Input power requirements  
100V-120V 4A 50/60 Hz  
200V-240V 2A 50Hz  
 
27  
Red LED behavior and projector errors  
If the projector is not functioning properly and the red LED is blinking, consult the table below to determine a  
possible cause. There are two-second pauses between the blinking cycles.  
 
28  
 
29  
 
30  
RS232 Terminal Specifications and Commands  
To control the projector from an LCD control panel, connect an RS-232 cable to the serial control  
connec8tor on the projector and set your computer’s serial port settings to match this communication  
configuration:  
Command format  
All commands consist of 3 alpha characters followed by a request, all enclosed in parentheses. The request  
can be a read request (indicated by a “?”) or a write request (indicated by 1 to 4 ASCII digits).  
A read request format: (AAA?) where  
(
starts the command  
AAA denotes the command  
?
)
denotes the read request  
ends the command  
A read command returns  
the range and the current  
setting, for example:  
A write request example: (AAA####) where  
(
starts the command  
AAA denotes the command  
#### denotes the value to be written  
(leading zeros not necessary)  
)
ends the command  
Some commands have ranges, while others are absolute. If a number greater than the maximum range is  
received, it is automatically set to the maximum number for that function. If a command is received that is  
not understood, a “?” is  
returned. With absolute  
settings, “0” is off, 1-9999  
is on.  
The one exception is the  
Power command, where 0  
is off and 1 is on.  
 
31  
Supported commands  
Function  
Command  
ARZ  
Range  
Default  
Aspect Ratio  
0-4  
1
0 =Native  
1 = 16:9  
2 = 4:3  
3 = Letterbox  
4 = Natural Wide  
Auto Chime Enable  
Auto Power  
Auto Source  
Blank  
ACE  
APO  
ASC  
BLK  
BSC  
0-1  
0-1  
0-1  
0-1  
0-2  
1
0
0
0
0
Blank Screen  
0 = black  
1 = blue  
2 = white  
Blue Color Offset  
Blue Gain  
BCO  
BCG  
BRT  
CEL  
CDE  
CLR  
CSM  
1-63  
1-63  
2-254  
0-1  
32  
32  
128  
0
Brightness  
Ceiling  
Chroma Detail  
Color  
0-20  
2-254  
0
128  
7
Color Space  
0-7  
0 = RGB  
3 = REC601  
2 = REC709  
7 = Auto  
Color Temp  
TMP  
0-2  
2
0 = 9300  
1 = 8200  
2 = 6500  
Contrast  
CON  
CCS  
DMG  
RST  
GTB  
4-252  
0-1  
128  
0
CCS  
Display Messages  
Factory Reset (Write only)  
Gamma Table  
0-1  
1
0-1  
n/a  
3
0-5  
0 = CRT  
1 = Film  
2 = Video  
3= Bright Room 1  
4= Bright Room 2  
5= PC  
Green Color Offset  
GCO  
1-63  
32  
 
32  
Green Gain  
GCG  
HPE  
HPS  
DKC  
DKH  
LMP  
LMR  
LDE  
MNU  
NAV  
1-63  
32  
0
High Power Enable  
Horizontal Position  
Keystone (Vertical)  
Keystone (Horizontal)  
Lamp Hours (Read only)  
Lamp Reset  
0-1  
n/a  
n/a  
128  
128  
0
53-203  
63-193  
0-32767  
0-32767  
0-20  
0
Luma Detail  
0
Menu  
0-1  
0
Menu Navigation  
0-4  
n/a  
0 = up  
1 = down  
4 = select  
Language  
LAN  
0-11  
0
0 = English  
1 = French  
2 = German  
3 = Spanish  
4 = Chinese Traditional  
5 = Japanese  
6 = Korean  
7 = Portuguese  
8 = Russian  
9 = Norwegian  
10= Chinese Simplified  
11 = Italian  
NTSC 2:2 Pulldown Enable  
Noise Reduction Enable  
NPE  
NRE  
0-1  
0
0
0-2  
0 = Off  
1 = Auto  
2 = Manual  
Noise Reduction Level  
Overscan  
NRL  
OVS  
0-10  
5
127 = Crop  
128 = Off  
128  
129 = Zoom  
Phase  
MSS  
PWR  
PSV  
PST  
0-31  
0-1  
n/a  
0
Power  
Power Save  
Presets  
0-1  
1
0-2  
0
0 = User 1  
1 = User 2  
2 = User 3  
Rear Project  
REA  
RCO  
0-1  
0
Red Color Offset  
1-63  
32  
 
33  
Red Gain  
RCG  
1-63  
32  
Skintone Bypass Enable  
Source  
SBE  
SRC  
0-1  
0
2
0-7  
0 = Video 1, MI  
1 = Video 2, VESA  
2 = Video 3, Component 1  
3 = Video 4, S-Video 1  
4 = Video 5, S-Video 2  
5 = Video 6, Component 2  
6 = Video 7, Composite  
7 = Video 8, D5  
Startup Logo  
Tint  
DSU  
TNT  
MTS  
TOE  
TLE  
0-1  
1
2-254  
n/a  
128  
n/a  
1
Tracking  
Translucent OSD  
TrueLife Enable  
Vertical Position  
Video Standard  
0-1  
0-1  
0
VPS  
VSU  
n/a  
n/a  
0
0-3  
0 = Auto  
1 = NTSC  
2 = PAL  
3 = SECAM  
 
34  
LIMITED WARRANTY  
Knoll Systems, Inc. (“Knoll”) warrants that each HD284 (“the Product”) sold hereunder will conform to and  
function in accordance with the written specifications of Knoll. Said limited warranty shall apply only to the  
first person or entity that purchases the Product for personal or business use and not for the purpose of  
distribution or resale. Said warranty shall continue for a period of two (2) years from the date of such  
purchase. The standard limited warranty excludes the lamps in projectors after 90 days or 500 hours and the  
accessories after one year. Knoll does not warrant that the Product will meet the specific requirements of the  
first person or entity that purchases the Product for personal or business use. Knoll’ liability for the breach of  
the foregoing limited warranty is limited to the repair or replacement of the Product or refund of the purchase  
price of the Product, at Knoll’ sole option. Replacement Product may be re-furbished in “like-new” condition,  
at Knoll’ sole discretion. To exercise the Purchaser’s rights under the foregoing warranty, the Product must  
be returned at the Purchaser’s sole cost and expense, to Knoll or to any authorized Knoll service center  
provided, and the Product must be accompanied by a written letter explaining the problem and which  
includes (i) proof of date of purchase; (ii) the dealer’s name; and (iii) the model and serial number of the  
Product. When sending your unit in for repair, please ship your unit in its original packing material or a Knoll  
approved ATA Shipping Case, or have a professional packaging company pack the unit. Please insure your  
shipment for its full value. A return authorization number, issued by the Knoll customer service department,  
must also be clearly displayed on the outside of the shipping carton containing the Product.  
Note: Remanufactured Products are exempt from the foregoing Limited Warranty. Please refer to the  
Remanufactured Product Warranty for applicable warranty information.  
WARRANTY LIMITATION AND EXCLUSION  
Knoll shall have no further obligation under the foregoing limited warranty if the Product has been damaged  
due to abuse, misuse, neglect, accident, unusual physical or electrical stress, unauthorized modifications,  
tampering, alterations, or service other than by Knoll or its authorized agents, causes other than from  
ordinary use or failure to properly use the Product in the application for which said Product is intended.  
DISCLAIMER OF UNSTATED WARRANTIES  
THE WARRANTY PRINTED ABOVE IS THE ONLY WARRANTY APPLICABLE TO THIS PURCHASE. ALL  
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED  
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE  
DISCLAIMED. THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE FACE HEREOF AND THE  
FOREGOING WARRANTY SHALL NOT BE EXTENDED, ALTERED OR VARIED EXCEPT BY WRITTEN  
INSTRUMENT SIGNED BY KNOLL. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN  
IMPLIED WARRANTY MAY LAST, SO SUCH LIMITATIONS MAY NOT APPLY TO YOU.  
LIMITATION OF LIABILITY  
IT IS UNDERSTOOD AND AGREED THAT KNOLL’ LIABILITY WHETHER IN CONTRACT, IN TORT,  
UNDER ANY WARRANTY, IN NEGLIGENCE OR OTHERWISE SHALL NOT EXCEED THE RETURN OF  
THE AMOUNT OF THE PURCHASE PRICE PAID BY PURCHASER AND UNDER NO CIRCUMSTANCES  
SHALL KNOLL BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES  
OR LOST PROFITS, LOST REVENUES OR LOST SAVINGS. THE PRICE STATED FOR THE PRODUCT  
IS A CONSIDERATION IN LIMITING KNOLL’ LIABILITY. NO ACTION, REGARDLESS OF FORM,  
ARISING OUT OF THE AGREEMENT TO PURCHASE THE PRODUCT MAY BE BROUGHT BY PUR-  
CHASER MORE THAN ONE YEAR AFTER THE CAUSE OF ACTION HAS ACCRUED. SOME STATES  
DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES  
SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS LIMITED WARRANTY  
GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHT WHICH VARIES  
FROM STATE TO STATE.  
Copyright 2005 Knoll Systems. All Rights Reserved.  
 

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