Knoll Systems Hdp420 Projector User Manual

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When Autosource is not checked, the projector defaults to Component initially, then defaults to 
whatever the last active source was when the projector was powered down. To display another 
source, you must manually select one by pressing the Source button on the remote or keypad.  
This cycles through all the sources that are selected in the Source Enable menu. 
 
The Source 1, 2, and 3 menus in the Sources menu allow  Sources   Source Enable  
you to assign a source to the Source 1, 2, and 3...

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Language: allows you to select a language for the onscreen display.
         
 
 
 
 
 
 
 
 
 
 
• Custom key: allows you to assign a different function to the Custom 
  key on the remote, allowing you to quickly and easily use the effect. \
Highlight an effect and 
  press Select to choose a different one. 
 
• Blank Screen: displays a solid blank image. 
 
• Freeze: takes a snapshot of the projected image. If you’re watching video, the source video 
   continues to run but the image is frozen....

  23  
Maintenance 
Cleaning the lens      
1 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. 
2 Lightly wipe the cleaning cloth over the lens in a  
   circular motion. 
         Lamp hours used 
 
 
Replacing the projection lamp 
The lamp hour’s timer in the Service Info menu counts the...

24 
7. Install the new lamp housing and tighten the screws. 
 
8. Replace the lamp door. 
 
9. Replace the base or ceiling mount plate, if necessary.   Service menu 
 
10. Plug in the power cord and press the Power button 
      on the remote to turn the projector back on. 
 
11. To reset the lamp hour timer, navigate to the  
      Settings>Service menu and select Reset  
      Lamp Hours. See page 22 for details. 
 
 
 
Remote control discrete codes 
 
You can use these codes to program another remote...

  25  
Supported video formats 
 
 
 
 
 
 
RS-232 terminal specifications  
 
Communication configuration 
To control the projector from and LCD control panel, connect RS-232 cable to the serial control 
connector on the projector and set your computer’s serial port settings to match this 
communication configuration. 
 
 
Setting    Value 
  Bits per second   19,200 
  Data bits   8 
  Parity    None 
  Stop bits   1 
  Flow control   None 
  Emulation   VT100 
   
 
 
  

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RS232 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: 
 
 
 Function   Command   Response 
 
 Brightness...

  27  
Supported commands 
 
Function   Command Range   Default 
 
Aspect Ratio   ARZ  0-5   1 
      0 = Auto 
      1 = Native 
      2 = 4:3 
      3 = 16:9 
      4 = Letterbox 
5= Natural Wide 
Auto Ceiling Enable  ACL  0-1   0 
Auto Color Gamut Enable AGA  0-1   1 
Auto Color Space Enable ACS   0-1   1 
Auto Image   AIM  0-1   0 
Auto Power Enable  APO  0-1   0 
Auto Source Enable  ASC  0-1   1 
Auto Video Standard Enable AVS  0-1   1 
Black Level Calibration  BLC  0-100   0 
Blank    BLK  0-1   0...

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Supported commands (continued) 
 
Function   Command Range   Default 
  
Gamma Table   GTB  5 = Bright Room  
7 = CRT 
      8 = PC 
Green Color Offset  GCO  0-255   128 
Green Gain   GCG  0-255   128 
HDMI DDC Enable 1  EE1  0-1   1 
HDMI DDC Enable 3  EE3  0-1   0 
High Power Enable  HPE  0-1   0 
Horizontal Position  HPS  n/a   n/a 
Illuminating State  LML  0-2   0 
Iris    IRI  0-100   100 
ISF Day Saved Status  IDS  0-2   0 
ISF Night Saved Status  INS  0-2   0 
Keycode Entry   KEY  0-70   0...

  29  
SUPPORTED COMMANDS (CONTINUED) 
 
Function   Command Range   Default 
 
Power Up Source  DSC  0-5   2 
Presets    PST  0-9   0 
      0 = Default 
      1 = User 1 
      2 = User 2  
      3 = User 3 
4 = Off 
8 = ISF Day 
9 = ISF Night 
Rear Project   REA  0-1   0 
Red Color Offset   RCO  0-255   128 
Red Gain   RCG  0-255   128 
Screen Trigger Enable  STE  0-1   1 
Sharpness   SHP  0-4   2 
Sleep Timer   SLT  0-1   0 
Sync Threshold Adjust  STH  1-15   8 
Source    SRC  0-5   2   
      0 =...

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LIMITED WARRANTY 
Knoll Systems, Inc. (“Knoll”) warrants that each HDP410 and HDP420 (“the Product”) sold hereunder will conform 
to and function in accordance with the written specificati ons of Knoll. Said limited warranty shall apply only to the 
first person or entity that purchases the Product for pers onal or business use and not for the purpose of distribution 
or resale. Said warranty shall continue for a period of tw o (2) years from the date of such purchase. The standard 
limited warranty...