NEC Vt770 Projector User Manual

101
 Menu Descriptions & Functions [Reset]
Returning to Factory Default
The Reset feature allows you to change adjustments and settings to the factory preset for sources by the following
methods:
Current Signal
Resets the adjustments for the current signal to the factory preset levels.
All the items in “Adjust (except “Wall Color”) and “Image can be reset.
All Data
Reset all the adjustments and settings for all the signals to the factory preset except Remaining Lamp Time, Lamp
Hour Meter, Filter Usage,...

102
	 Entry List
Displaying the Entry List
Press the SOURCE button to display the list of the entry signals. Use the SELECT 
 buttons on your remote control
or the projector cabinet to select the signal and press the ENTER button on the remote control or the projector cabinet
to display the Entry Edit Command screen.
Entering the Currently Projected Signal into the Entry List
1. Display the Entry List.
2. Use the SELECT 

 or  button on your remote control or the projector cabinet to select any number...

103
7. Using On-Screen Menu
Entry Edit Command
You can edit signals on the Entry List.
Load ...................... Enables you to select a signal from the list.
Store ..................... Enables you to store the currently projected signal.
Cut ........................ Enables you to remove a selected signal from the list and place it on the clipboard in the projector.
Copy ...................... Enables you to copy a selected signal from the list and place it on the clipboard in the projector.
Paste...

104
8
Maintenance
○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○

  Cleaning the Filters ................................................. 105
  Cleaning the Cabinet .............................................. 105
  Cleaning the Lens ................................................... 106
  Replacing the Lamp and Filters .............................. 107 

105
8. Maintenance
This section describes the simple maintenance procedures you should follow to clean the filter and replace the lamp.

 Cleaning the Filters
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 filters are dirty or clogged, your projector may overheat.
CAUTION
•Turn off the projector, turn off the main power switch and unplug the projector before cleaning the...

106
8. Maintenance
 Cleaning the Lens
CAUTION
Turn off the projector, turn off the main power switch and unplug the projector before cleaning lens.
Z
O
O
M
 FOCUS 
3D REFORMSOURCE
SELECT
STATUSLAMP 
PC CARD POWERON/STAND BY AUTO ADJUST
MENUENTERCANCEL
Use a blower or lens paper to clean the lens, and be careful not to scratch the lens. 

107
 Replacing the Lamp and Filters
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.
CAUTION
•DO NOT TOUCH THE LAMP immediately after it has been used.
It will be extremely hot. Turn the projector off, wait 10 seconds, turn off the main power...

108
3. Insert a new lamp housing until the lamp housing is plugged into the socket.
CAUTION
Do not use a lamp other than the NEC replacement lamp (VT77LP).
Order this from your NEC dealer.
Secure it in place with the two screws.
Be sure to tighten the screws.
8. Maintenance
4. Reattach the lamp cover.
Tighten the lamp cover screw.
Be sure to tighten the screw.
5. After you install a new lamp, select the menu 
→ [Setup] → [Page 5] → [Lamp Hour] → [Clear Lamp Hour
Meter], and then press “Clear” to clear...

109
Replacing the Filters
NOTE: Do not wash the filter with soap and water. Soap and water will damage the filter membrane. Before replacing the filter,
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 filters. The filters come in the same package with your replace-
ment lamp.
CAUTION
•Turn off the projector, turn off the main power switch and unplug the projector before replacing the...

110
9
Appendix
○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○

  Troubleshooting ...................................................... 111
  Specifications ......................................................... 114
  Cabinet Dimensions ............................................... 116
  Pin Assignments of D-Sub COMPUTER 1/2 Input
        Connector ............................................................. 117
  Compatible Input Signal List ................................... 118
  PC Control...