Knoll Systems Ht221 Projector User Manual

							• The projector and computer will be turned on as described in Using the Projector on page 
13.  Do not turn on either the computer or unit until you read this section.  
• Please also refer to the manual of the computer to be connected. 
Connecting the remote mouse receiver to an IBM PC/AT computer 
Connect the IBM/Mac connector on the remote mouse receiver and PCs mouse port with the 
supplied serial cable. 
 
 
Connecting the remote mouse receiver to an IBM PS/2 or Macintosh compute\
r 
Connect the supplied serial cable to the IBM/Mac connector on the remote mouse receiver. 
 
Connect the supplied mouse adapter to the other end of the serial cable and the computer mouse 
port.  Note that two types of mouse adapters are supplied; one is for IBM PS/2 and the other is for 
Macintosh. 
 
 
Operation  
Using the Projector 
 
Before starting 
• Remove the lens cap from the lens.  
Please retain it because it must be 
replaced after use. 
• Dont use the Projector in a bright room 
and dont expose the screen to direct 
sunlight or other strong light sources. 
 
1) Connect the supplied power cable to the 
unit, then to the wall outlet (the mains). 
The POWER indicator on top of the 
unit lights in amber. 
 11 
						

							 
 
 
2) Press the POWER ON button on the remote control or the POWER button on t\
op of 
the unit to turn on the unit. 
The POWER indicator on top of the unit turns to green and start blinking. It will take one 
minute for the projector to be ready to use.  Wait until the indicator stops blinking and lights 
steadily in green. 
Note: While the POWER indicator is blinking, the unit doesnt turn off even if you press the 
POWER OFF button on the remote control or the POWER button on the unit. 
Tip: If you set AUTO START to ON in the menu, the projector will turn on automatically 
after setting the POWER switch to on in step 1. 
3) Turn on the connected source (computer, VCR, DVD player, etc.). 
 If you use a video component, start playback for screen/image adjustment. 
4) Press VIDEO, S-VIDEO, or RGB to select the input source. 
 You can also select the input source with the menu operation. 
Notes 
• If the blue, black or focus pattern screen (the background type differs depending on the 
BACKGROUND setting.) is projected, check the following: 
- Is the source is properly connected to the unit? 
- Is the source component or computer turned on? 
- Is the video signals are coming to the 
projector? 
• The video resolution of the connected 
computer can be changed. 
      5)  Adjust the position and height. 
Move the unit to the position where the 
projected image is horizontally centered 
to the screen. 
• When the projected image is offset 
horizontally 
Adjust the position of the unit so that 
the unit is square to the screen 
• When the projected image is offset 
vertically 
Adjust the height balance of the unit 
with the adjusters. 
Using the adjusters to adjust the 
height balance 
There are two front adjusters and a rear 
adjuster. 
To lower the position of the screen, pull 
out the folded leg of the rear adjuster. 
For the front adjusters, rotate each adjuster until the unit is vertically parallel to the screen. 
 
If the vertical offset cannot be adjusted with the adjustors or the ceiling mount kit, press the 
keystone +/- key to correct for the offset. The maximum correction value is 29° including the 
optical correction. 
 
 
 
 12 
						

							6)  Adjust the image size with the 
zoom ring lever, and then adjust the 
focus with the focus ring. 
 
 
 
 
 
 
 
 
 
7) Change the unit setting to suit to the projecting method and selected source as described 
in step 4. 
• Select the type of projection 
• If the projected image is horizontally reversed or upside down, change the projection type.  
This setting can provide the correct image. 
• Adjust the projected image from the source connected to the RGB IN connector. 
The resolutions most suitable to the incoming signals will automatically be selected.  
However, if any vertical banding, noise, dot interference, or crosstalk appears on the screen, 
adjust PICTURE ADJ, then FINE PICTURE using the menus.  You can also adjust the 
horizontal and vertical position of the image. 
6) Adjust the picture elements and select the picture type. 
You can adjust the picture elements; select the picture type according to the video contents. 
7) Start using the Projector. 
The following functions are available while using the Projector: 
• Adjusting the volume of the unit speaker,  
• Using the laser pointer, 
• Turning off the image and muting the sound temporarily, 
• Freezing a moving picture, and 
• Enlarging the picture. 
Note 
If POWER OFF is set to ON, the image will be turned off if the unit has been projecting a 
blank screen for five minutes with an RGB input source. 
If the image is suddenly turned off while projecting a computer image, the computers screen 
saver or the units POWER OFF function may be activated. 
 
Turning the Projector off 
1) 
Operating with the remote control:  Press the POWER OFF button a little bit longer. 
Operating with the projector keypad  Press the POWER button for 2-3 seconds. 
         
When the projector is turned off, the POWER indicator will start blinking then turn to amber in 
about one minute. 
 
***Never disconnect the power cable while the POWER indicator is blinking.*** 
 
2) If the POWER indicator is lit in amber, the power cable may be disco\
nnected. 
 
We suggest disconnecting the power cord if it is not to be used for an extended period. 
 13 
						

							Changing computers video resolutions 
Depending on your computers graphic capability, you may be able to select one of several 
resolutions.  Generally a computer- either a PC or Macintosh- with 1 MB VRAM will run: 
640 x 480 at 16.7 million colors (24 bit True color) 
800 x 600 at 65,000 colors. 
1024 x 768 at 256 colors. 
As the resolution increases, the number of colors you can run decreases.  With 2 MB VRAM a 
computer will run: 
640 x 480 at 16.7 million colors (24 bit True color). 
800 x 600 at 16.7 million colors (24 bit True color). 
1024 x 768 at 65,000 colors. 
1280 x 1024 at 256 colors. 
 
Windows 95 
There are two methods you can use to change your resolution. 
Method 1 
1. Move your cursor to the background image and click. 
2. In the Properties menu, select Settings. 
3. Change your resolution and click OK. 
4. You may be asked to reboot for the changes to take effect, or a message saying, Windows is 
about to resize your display may appear.  Youll be asked if you want to keep your settings.  
Select Yes. 
Method 2 
1. Click on your My Computer icon. 
2. Open Control Panel and select Display. 
3. Change your resolution and click OK. After the new resolution is selected. 
4. You may be asked to reboot for the changes to take effect, or a message saying, Windows is 
about to resize your display may appear.  Youll be asked if you want to keep your settings.  
Select Yes. 
 
Windows 3.1 
1. Click on the Main icon and open Control Panel. 
2. Select Change System Settings and click on Option. 
3. Choose Change Display Settings. 
4. Select the resolution you want. 
5. Choose the current or desired drive. 
6. Restart Windows for the changes to take effect. 
Macintosh 
1. Under the Apple menu, select Control Panels and open Monitors. 
2. Click and open Options. 
3. Select your new resolution and click OK. 
 
Notebook computers and resolution standards 
This Projector is designed to project industry-standardized video such as VESA (Video 
Electronics Standards Association) or VGA (Video Graphics Array).  Notebook computers do not 
use industry standards.  They use whatever timing is necessary to match their local LCD display.  
The end result is typically not standard.  By turning off your notebooks display, the timing 
parameters are a bit more like the real VESA or VGA signal. 
 
 
 14 
						

							Adjusting the volume of the projector speaker 
Press VOLUME + to increase the volume or - to decrease. 
The volume can also be adjusted with the menu operation. 
 
 
Using the laser pointer 
You can highlight the desired point on the screen with the beamed red light. 
 
 
***Caution*** Do not look into the laser pointer while it is on. Do not point the lase\
r beam at 
any other persons.  This could result in serious eye damage or blindness. 
 
 
Press the LASER button. The red laser light will be on while pressing the button. 
 
 
Turning off the image and muting the sound temporarily 
Press the MUTE button. The image will turn off and the sound will be muted at the same time.  
To restore the picture and sound, press the MUTE button again. 
 
 
Freezing a moving picture 
You can capture the desired frame of the moving picture. 
Press the FREEZE button. A still image of the current frame will be displayed.  To restore the 
present picture, press the button again. 
Tip: The still picture can also be enlarged (see next page). 
 
 
Enlarging the picture 
You can enlarge a portion of the picture up to four times its normal size. The overall picture size 
will remain the same and the enlarged picture will completely fill the overall picture frame.  
Press MAGNIFY +.  While the button is pressed the picture is enlarged until it becomes a 
maximum of four times the normal size. Release the button at the desired size. 
 
To reduce the size of the enlarged picture 
Press MAGNIFY -.  While the button is pressed the picture is reduced until it becomes the 
normal size. 
 
To move to the desired portion of the enlarged picture 
1) Press POSITION.  The button lights in red.  If you dont proceed to step 2 within ten 
       seconds, the button goes off. 
2) Press the desired portion of the cursor key while POSITION lights. 
The moving directions are indicated by the eight triangle marks on the cursor key.   
The picture will move in the direction pointed by the mark where you are pressing. 
Note: The full size image cannot be moved because the whole image is fully displayed. 
 
 
 
 
 
 15 
						

							Menu operation- Selecting the input source with the remote 
1) Press MENU. The button lights 
       in red and the main menu 
      appears on the screen. If you  
      dont proceed to step 2 within ten 
      seconds, the button goes off. 
Note: The menu will not be 
displayed if the picture is enlarged 
even slightly.  In such a case, reduce 
the picture size to normal before 
starting the menu operation. 
 
2) Press the cursor up or down to 
      select  SOURCE MENU. 
 
     3) Press L-CLICK. (the button on the remote bottom) 
                                                                      Th\
e source menu appears on the screen. 
SETTINGS MENU 
POWER MENU 
IMAGE ADJ  MENU 
SOURCE MENU 
 
RGB
STANDARD
S-VIDEO 
VIDEO  
 
 
 
 
 
 
 
 
4)  Press the big round cursor up or down to select the desired input sour\
ce. 
5)  Press L-CLICK again. The source youve selected in step 4 will be confirmed, then the 
      picture from the selected source will be projected on the screen. 
6)  Press R-CLICK (the button next to the big round curser key) to turn off the menu display. 
 Whenever you wish to turn off the menu display, press R-CLICK button. 
 
Menu operation- Selecting the input source with the projector 
The menu operation is explained above using the remote control. It can also be controlled with 
the projector keypad buttons. The remote control and unit button comparison table 
Remote control buttons  Projector operation buttons 
 MENU 
The main menu appears on the screen when 
you press this button. 
To turn off any menu, press R-CLICK. 
MENU 
The main menu appears on the screen when 
you press this button. 
To turn off any menu, press R-CLICK on the 
remote control. 
Cursor up or down key 
Press either key to select the menu item. 
SELECT 
Each press changes the menu item to the next. 
L-CLICK 
Press this button whenever confirming 
operation is required. 
ENTER 
Press this button whenever confirming 
operation is required. 
Cursor +/- key 
Press either key to choose the setting or value 
of the selected menu item. 
ADJUST +/- 
Press either button to choose the setting or 
value of the selected menu item. 
 16 
						

							Selecting the projection type; Floor, Ceiling, Rear and Front 
This reorients your image for your type of projection. 
1. Press MENU to display the main menu. 
2. Press the cursor up or down key to select SETTING MENU. 
3. Press L-CLICK to display the SETTING MENU. 
4. Press the cursor up or down key to select PROJECTION. 
5. Press the cursor +/- key to select the projection type, which suits the Projector setup 
conditions. 
The following four projection types can be selected: 
a. FRONT FLOOR (Normal). 
b. REAR CEILING (Upside down and horizontally reversed). 
c. REAR FLOOR (Horizontally reversed), or 
d. FRONT CEILING (Upside down). 
6. Press L-CLICK. 
 
Selecting a display language 
1. Press MENU to display the main menu. 
2. Press the cursor up or down key to select SETTING MENU. 
3. Press L-CLICK to display the SETTING MENU. 
4. Press the cursor up or down key to select LANGUAGE, then press the cursor + / - to select 
one of the following languages: 
ENGLISH (English), 
DEUTSCH (German), 
FRANCAIS (French), 
ITALIANO (Italiano), 
ESPANOL (Spanish), 
SVENSKA (Swedish),  
JAPANESE 
5. Press L-CLICK again. 
 
Adjusting the volume 
The volume can also be adjusted with VOLUME +/- on the remote control. 
1. Press MENU to display the main menu. 
2. Press the cursor up or down key to select IMAGE ADJ MENU. 
3. Press L-CLICK to display the IMAGE ADJ MENU. 
4. Press the cursor up or down key to select VOLUME, then press the cursor +/- key to adjust 
the volume. 
 
Selecting the background 
1. Carry out steps 1 to 3 in Selecting the projection type on the left column. 
2. Press the cursor up or down key to select BACKGROUND. 
3. Press the cursor +/- key to select one of the following background types: 
• BLUEBACK, 
• BLACKBACK, or 
• FOCUS PATTERN. 
4. Press L-CLICK. 
 
 
 
 
 17 
						

							Adjusting the image from the source connected to the RGB IN connector 
The Projector selects the most suitable resolutions as shown in the Timing Chart below 
according to the incoming signals from the RGB IN connector.  However, you may need manual 
adjustment depending on the computer or video component connected to the RGB IN connector.  
If you have any of vertical banding, noise, dot interference, or crosstalk on the proje\
cted picture, 
adjust clock frequency with PICTURE ADJ then clock phase with FINE PICTURE (see next 
page).  You can also adjust the horizontal and vertical position of the\
 image. 
 
Quick starting the projector 
The projector can be turned on by switching the main power on the unit (see step 1 on page 11).  
There is no need to press the remote control POWER ON button or the projector POWER button. 
 
1. Press MENU to display the main menu. 
 
2. Press the cursor up or down key to select “POWER MENU.” 
 
3.          Press L-CLICK to display the POWER MENU. 
 
4.          Press the cursor up or down key to select “AUTO START,” then press the cursor + key to 
             select “ON” to activate the function. 
 
To deactivate this function, set “AUTO START” to “OFF” by pressing the cursor – key. 
 
 
Adjusting the image from the source connected to the RGB IN connector 
The Projector selects the most suitable resolutions as shown in the Timing Chart below 
according to the incoming signals from the RGB IN connector (When RGB is set to 
STANDARD).  However, you may need manual adjustment depending on the computer or 
video component connected to the RGB IN connector.  If you have any of vertical banding, noise, 
dot interference, or crosstalk on the projected picture, adjust clock frequency with PICTURE 
ADJ then clock phase with FINE PICTURE (see next page).  You can also adjust the 
horizontal and vertical position of the image. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 18 
						

							Timing Chart 
 Signal Resolution H. Sync. 
(kHz) 
V. Sync. 
(Hz) 
Dot Clock 
(MHz) 
1 NTSC 640 x 480 15.734 59.94 - 
2 PAL 768 x 576 15.625 50 - 
3 SECAM 768 x 576 15.625 50 - 
4 VESA 640 x 350 37.86 85.08 31.5 
5 Mac 640 x 400 35 66 30.24 
6 IBM 640 X 400 31.47 70 25.175 
7 VESA 640 X 400 37.86 85.08 31.5 
8 VESA 640 X 480 31.47 59.94 25.175 
9 IBM 640 X 480 31.47 60 25.175 
10 Mac 640 X 480 31.47 60 25.175 
11 Mac 640 X 480 34.97 66.67 31.334 
12 Mac 640 X 480 35 66.67 30.24 
13 VESA 640 X 480 37.86 72.81 31.5 
14 VESA 640 X 480 37.5 75 31.5 
15 IBM 640 X 480 39.375 75 31.49 
16 VESA 640 X 480 43.269 85.01 36 
17 IBM 720 X 350 39.44 87.85 35.5 
18 IBM 720 X 350 31.469 70.09 28.322 
19 IBM 720 X 400 31.469 70.09 28.322 
20 VESA 720 X 400 37.927 85.04 35.5 
21 IBM 720 X 400 39.375 87.7 35.5 
22 VESA 800 X 600 35.16 56.25 36 
23 VESA 800 X 600 37.879 60.32 40 
24 VESA 800 X 600 48.077 72.19 50 
25 VESA 800 X 600 46.88 75 49.5 
26 VESA 800 X 600 53.674 85.06 56.25 
27 Mac 832 X 624 49.725 74.55 57.283  * 
28 VESA 1024 X 768 48.363 60 65         * 
29 VESA 1024 X 768 57.476 70.07 75 
30 IBM 1024 X 768 58.131 72.03 79 
31 Mac 1024 X 768 60.241 74.93 80         * 
32 
33 
34 
34 
36 
37 
38 
39 
40 
41 
 
VESA 
Mac19 
NEC 
VESA 
Mac 
NEC 
Mac 
HP 
VESA 
SUN 
1024 X 768 
1024 X 768 
1120 X 750 
1280 X 960 
1280 X 1024 
1280 X 1024 
1280 X 1024 
1280 X 1024 
1280 X 1024 
1280 X 1024 
 
60.023 
74.93 
60.06 
85 
60.38 
59.93 
69.89 
72.01 
74.12 
76.11 
75.03 
60.241 
50.025 
85.938 
64.31 
64.603 
74.882 
78.125 
78.855 
81.13 
78.75 * 
80 
60.06 
148.5 
107 
107.5 
118.5 
135 
135 
135 
* AccuBlend TM 
The resolution of the Data Project is 1024 x 768.  Other resolution images (e.g. 1280 x 1024) are 
compressed into 1024 x 768.  In such a case, projected letters and lines on the screen might 
appear unevenly. 
 19 
						

							 Adjusting the clock frequency (PICTURE ADJ) and clock phase (FINE 
PICTURE) manually 
When AUTO PICTURE is set to ON, the clock frequency and clock phase will be adjusted 
automatically.  However, if you need any manual adjustment for these two items, you first need 
to set AUTO PICTURE to OFF as indicated in the following steps.  Adjust the clock 
frequency to eliminate any vertical banding, then clock phase to reduce any video noise, dot 
interference, or cross talk.  (When clock phase is not matched evidently, the image appears to be 
shimmering.) 
1. Setting the input source to RGB 
 Select the input source RGB 
2. Setting AUTO PICTURE to OFF for manual adjustment 
1. Press MENU to display the main menu. 
2. Press the cursor up or down key to select IMAGE ADJ MENU. 
3. Press L-CLICK to display the IMAGE ADJ MENU. 
4. Press the cursor up or down key to select ALIGNMENT. 
5. Press L-CLICK to display the ALIGNMENT menu. 
6. Press the cursor up or down key to select AUTO PICTURE. 
7. Press the cursor - key to select OFF, then press L-CLICK. 
 PICTURE ADJ and FINE PICTURE appear below AUTO PICTURE. 
3. Adjusting the clock frequency 
1. Press the cursor up or down key to select PICTURE ADJ. 
2. Press the cursor - key until the vertical banding disappears. 
  Press + to increase the frequency and - to decrease. 
4. Adjusting the clock phase 
1. Press the cursor up or down key to select FINE PICTURE. 
2. Press the cursor +/- key until the video noise, dot interference, and cross talk are reduced. 
  Press + to increase the number and - to decrease the number. 
 
If the image (and the menu) has disappeared while setting the clock frequency or clock 
phase, please carry out the following steps: 
1. Turn off the source connected to the RGB IN connector.  The incoming signals from the 
source go down and blue, black, or focus pattern screen (the background type differs 
depending on the “BACKGROUND” setting will be displayed. 
2. Carry our “Resetting the present settings to factory settings” on the next page. 
3. Turn on the source, then carry out “Adjusting the clock frequency and clock phase manually” 
from the beginning. 
 
When you have connected another computer or video component 
Set “AUTO PICTURE” to “ON” by pressing the cursor + key in Step 2-7 above. 
 
Adjusting the horizontal (H POSITION) and vertical (V POSITION) position 
of the image 
1. Carry out step 1 to 2-5 above. 
2. Press the cursor up or down key to select “H POSITION.” 
3. Press the cursor +/- key to adjust the horizontal position.  Press + to move the image right 
and – to move it left. 
4. Press the cursor up or down key to select “V POSITION.” 
5. Press the cursor +/- key to adjust the vertical position.  Press + to move the image up and 
– to move it down. 
 20