NEC Vt670k Projector User Manual

44
5. Using On-Screen Menu
Selecting Menu Language [Language]
Y ou can choose one of 21 languages for on-screen instructions.
Selecting Menu Color [Menu Color Select]
You can choose between two color modes for menu color: color and monochrome.
Selecting Menu Display Time [Menu Display Time]
This option allows you to select how long the projector waits after the last touch of a button to turn off the menu.
The preset choices are “Manual”, “Auto 5 sec”, “Auto 15 sec”, and “Auto 45 sec”. The “Auto 45 sec”...

45
5. Using On-Screen Menu
 Menu Descriptions & Functions [Advanced]
Security
A keyword can be set for your projector to avoid operation by an unauthorized user using the Menu. When a keyword
is set, turning on the projector will display the Keyword input screen. Unless the correct keyword is entered, the
projector cannot project an image.
To  enable the Security function:
1. Select [Advanced] → [Security] and press the  button to select “On”.
The [Keyword] screen will be displayed.
The [Confirm...

46
5. Using On-Screen Menu
3.Type in the same combination of SELECT buttons 
 and press the ENTER button.
The confirmation screen will be displayed.
4. Select “Yes” and press the ENTER button. The Security function has been enabled.
To disable the Security function:
1. Select [Advanced] → [Security] and press the  button to select “Off”.
2. Type in your keyword and press the ENTER button.
When the correct keyword is entered, the Security function will be disabled.
When the Security function is...

47
5. Using On-Screen Menu
Disabling the Cabinet Buttons [Cabinet Button Lock]
This option turns on or off the Cabinet Button Lock function.
NOTE: • This Cabinet Button Lock does not affect the remote control and the PC C\
ontrol functions.
• When the cabinet buttons are unlocked, pressing and holding the EXIT but\
ton for about 10 seconds will change the setting to
enable.
• Key symbol  indicates the Cabinet Button Lock is enabled.
Enabling High Speed Fan Mode [Fan Mode]
This option allows you to...

48
5. Using On-Screen Menu
(Advanced Page 2)
Enabling Power Management [Power Management]
When this option is on and there is no input for five minutes or more, the projector will automatically turn itself off.
Tu rning On Noise Reduction [Noise Reduction] (not available for Video and S-Video signals)
Reduces video noise. Select “On” to enable the Noise Reduction feature.
Tu rning On Flicker Reduction [Flicker Reduction]
Reduces flicker which can occur in an interlaced signal. This feature is not...

49
5. Using On-Screen Menu
[Phase] (available for RGB and HDTV signals only)Use this item to adjust the clock phase or to reduce video noise, dot interference or cross talk. (This is evident
when part of your image appears to be shimmering.)
Use “Phase” only after the “Clock” is complete.
This adjustment is made automatically when the Auto Adjust is turned on.
Selecting Communication Speed [Communication Speed]
This feature sets the baud rate of the PC Control port (DIN 8 Pin). It supports data rates...

50
5. Using On-Screen Menu

 Menu Descriptions & Functions [Default]
Returning to Factory Default [Factory Default]
The Factory Default feature allows you to change adjustments and setting to the factory preset.
[Current Signal]
Resets the adjustments for the current signal to the factory preset levels.
The items that can be reset are: Brightness, Contrast, Color, Hue, Sharpness, Noise Reduction, Aspect Ratio,
Horizontal Position, Vertical Position, Clock, Phase and Picture Management.
[All Data] Reset...

51
6. Maintenance
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This section describes the simple maintenance procedures you should follow to clean the filter and replace the lamp.


 Cleaning or Replacing the Filter
The air-filter sponge keeps dust and dirt from getting inside the projector and should be cleaned after every 100 hours
of operation (more often in dusty conditions). If the filter is dirty or...

52
6. Maintenance
3. Reinstall the new filter cover.
NOTE: Do not wash the filter with soap and water. Soap and water will damage the filter membrane. Before replacing the f\
ilter,
remove dust and dirt from the projector cabinet. Keep out dust and dirt \
during filter replacement.
NOTE: When you replace the lamp, it is also wise to replace the filter. The filter comes in the same package with your replacement
lamp.
\f Cleaning the Cabinet and the Lens
1. Turn off the projector before cleaning.
2. Clean...

53

 Replacing the Lamp
After your lamp has been operating for 2000 hours (up to 3000 hours in Eco mode) or longer, the LAMP indicator in the
cabinet will blink red and the message will appear. Even though the lamp may still be working, replace it at 2000 (up to
3000 hours in Eco mode) hours to maintain optimal projector performance. After replacing the lamp, be sure to clear
the lamp hour meter. See page 
50 .
CAUTION
•DO NOT TOUCH THE LAMP immediately after it has been used. It will be extremely hot....