Knoll Systems Hd177 Projector User Manual

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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...

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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...

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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...

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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...

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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...

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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...

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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.  
  
 
 
 
 
 
   

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RS232 Terminal Specifications and Commands  
 
To control the projector from an LCD control panel, connect an RS-232 cable to the serial control 
connector 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...