NEC Projector Np4001 User Manual

6. Maintenance 
109 
Resetting the Lamp Hours Counter 
After replacing the lamp(s), the lamp hour co unter(s) should be reset to zero. Refer to 
the following guide: 
1.   Press the  Menu button on the 
OSD control panel or Re-
mote Control to open the 
Main menu. 
 
2.   Press the  ▲or▼  button
 to 
move to the  Reset menu and 
press  Enter .  
3.  The  Reset  menu is displayed. 
Select  Clear Lamp 1  or 
Clear Lamp 2  as required 
using  ▲or▼  and press  En-
ter . 
 
4.  A confirmation box is dis-...

 
110 
7. Appendix 
n Using the Optional Remote Mouse Receiver (NP01MR) 
The optional remote mouse receiver enables y ou to operate your computer’s mouse func-
tions from the remote control. It is a great  convenience for clicking through your computer-
generated presentations. 
Connecting the remote mouse  receiver to your computer 
If you wish to use the remote mouse function, connect the mouse receiver and computer. 
The mouse receiver can be connected directly to the computer’s USB port (type A)....

7. Appendix 
111 
When connecting using the USB terminal 
The mouse receiver can only be used with a Microsoft Windows 98/Me/XP*/2000 PC 
system or a Mac OS X 10.0.0 or later operating system. 
Note:  
In Windows XP, if the mouse cursor will not  move correctly, do the following: Clear 
the Enhance pointer precision check box underneath t he mouse speed slider in 
the Mouse Properties dialog box  [Pointer Options tab]. 
Note:  
Wait at least 5 seconds  after disconnecting the mouse  receiver before...

7. Appendix 
112
o Troubleshooting 
Indicator Messages
 
Several indicator messages are used by the projector to alert users of problems with 
setup or internal parts. The LEDs on the top  surface of the projector show the status of 
the power, lamps 1 and 2 as well as the general working order of the projector through 
the status LED (see 
OSD Controls and Status LEDS on page 8  for location). The follow-
ing tables describe the various states of the 4 LEDs. 
The Power LED 
PROJECTOR 
STATUS LED...

7. Appendix 
113 
The Lamp LEDs 
PROJECTOR 
STATUS LED CONDITION LED SEQUENCE PROJECTOR 
CONDITION 
Lamp off  Off  Off  Lamp off 
End of the lamp life  Red blink  0.5 secs on 
0.5 secs off Replace lamp  
(see notes below) 
No lamp 
Red 1 time blink 
(repeatedly)  0.5 secs on 
2.5 secs off 
ERROR 
Lamp ERROR 
Red 6 times blink 
(repeatedly)  (0.5 secs ON > 0.5 
secs OFF) * 6 > 2.0 
secs OFF 
ERROR 
Cooling lamp  Orange blink 
0.5 secs ON > 0.5 
secs OFF Switching lamp1 
and 2 
Re-light up se-
quence...

7. Appendix 
114
Common Problems and Solutions 
These guidelines provide tips to deal with problems you may encounter while using the 
projector. If the problem remains unsolved, contact your dealer for assistance. 
Often the problem is something as simple as a loose connection. Check the following 
before proceeding to the problem-specific solutions. 
•  Use some other electrical device to confir m that the electrical outlet is working. 
•   Ensure the projector is turned on. 
•   Ensure all...

7. Appendix 
115 
p Image Problems 
Problem: No image appears on the screen 
1.  Verify the settings on your notebook or desktop PC. 
2.  Turn off all equipment and power up again in the correct order. 
Problem: The image is blurred  
1. Adjust the  Focus on the projector. 
2.  Press the  Auto Adjust  button on the remote control or projector. 
3.  Ensure the projector-to-screen distance  is within the specified range. 
4.  Check that the projector lens is clean. 
5.  Remove the lens cover. 
Problem:...

7. Appendix 
116
Lamp Problems 
Problem: There is no light from the projector  
1. Check that the power cable  is securely connected. 
2.  Ensure the power source is good by te sting with another electrical device. 
3.  Restart the projector in the correct  order and check that the Power LED is 
green. 
4.  If you have replaced the lamp recently,  try resetting the lamp connections.  
5.  Replace the lamp module. 
6.  Remove the lens cover. 
7.  Put the old lamp back in the projec tor and have the...

7. Appendix 
117 
Audio Problems 
Problem: There is no sound 
1. Adjust the volume on the remote control.  
2.  Adjust the volume of the audio source. 
3.  Check the audio cable connection. 
4.  Test the source audio output with other speakers. 
5.  Have the projector serviced. 
Problem: The sound is distorted  
1. Check the audio cable connection. 
2.  Test the source audio output with other speakers. 
3.  Have the projector serviced.  

7. Appendix 
118
q Having the Projector Serviced 
If you are unable to solve the problem, you shoul d have the projector serviced. Pack the pro-
jector in the original carton. Include a descripti on of the problem and a checklist of the steps 
you took when trying to fix the problem. The  information may be useful to the service person-
nel. Return the projector to the place you purchased it.