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-
played. Select  OK using  
◄  or  ► and press  Enter to 
reset the selected Lamp hours 
to zero. 
 
   
						

							
 
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). 
Note: 
Depending on the type of connection or OS  installed on your computer, you may 
have to restart your computer or change your computer settings. 
 
 
 
When operating a computer through the remote mouse receiver 
  
						

							
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 reconnect-
ing it and vice versa. The computer may not  identify the mouse receiver if it is 
repeatedly connected and disconnected in rapid intervals. 
Operating your computer’s mouse from the remote control 
You can operate your computers mouse from the remote control. 
PAGE UP/DOWN Button – scrolls the viewing ar ea of the window or to move to the pre-
vious or next slide in PowerPoint on your computer.  
SELECT  ▲▼◄► Buttons – moves the mouse cursor on your computer.  
MOUSE L-CLICK Button – works as the mouse left button.   MOUSE R-CLICK Button – works as the mouse right button. 
Note:  
When you operate the com puter using the SELECT ▲▼◄► buttons with the 
menu displayed, both the  menu and the mouse pointer  will be affected. Close the 
menu and perform the mouse operation. 
About Drag Mode 
By pressing the MOUSE L-CLICK or R-CLICK button for 2 or 3 seconds then releasing, 
the drag mode is set and the drag operati on can be performed simply by pressing the 
SELECT  ▲▼◄►buttons. To drop the item, press  the MOUSE L-CLICK (or R-CLICK) 
button. To cancel it, press the MOUSE R-CLICK (or L-CLICK) button. 
Note:  
You can change the Pointe r speed on the Mouse Proper ties dialog box on the 
Windows. For more information, see t he user documentation or online help sup-
plied with your computer. 
  
						

							
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 CONDITION LED SEQUENCE PROJECTOR 
CONDITION 
AC off  Off  Off  Off 
Cooling Orange blink  0.5 secs on 
0.5 secs off After power off 
Power up sequence  Green blink 
0.5 secs on 
0.5 secs off Start up 
Standby Orange on On  Standby 
Power on  Green on  On  On 
 
The Status LED 
PROJECTOR 
STATUS LED CONDITION LED SEQUENCE PROJECTOR 
CONDITION 
Normal condition  Off  Off  Power on 
Cover ERROR Red 1 time blink 
(repeatedly)  0.5 secs on 
2.5 secs off 
ERROR 
Temperature 
ERROR Red 2 times blink 
(repeatedly)  (0.5 secs ON > 0.5 
secs OFF) * 2 > 2.0 
secs OFF 
ERROR 
Fan ERROR 
Red 4 times blink 
(repeatedly)  (0.5 secs ON > 0.5 
secs OFF) * 4 > 2.0 
secs OFF 
ERROR 
Keylocked 
(when push key) 
Orange light up  On 
Keylocked function 
enabled 
Standby 
(Power-saving) Off Off  Standby 
(Power-saving) 
Standby (Normal)  Green light  On  Standby (Normal) 
  
						

							
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 
Green blink  0.5 secs ON > 0.5 
secs OFF Start up 
Lamp life over  
(cannot lamp on) Red on  On 
Replace lamp  
(see notes below) 
Eco mode  Orange on  On  Power on 
Normal mode  Green on  On  Power on  
						

							
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 connections are securely attached.  
•   Ensure the attached device is turned on. 
•   Ensure a connected PC is not in suspend mode. 
•   Ensure a connected notebook computer is  configured for an external display. 
(This is usually done by pressing an  Fn-key combination on the notebook.) 
Tips for Troubleshooting 
In each problem-specific section, try the st eps in the order suggested. This may help you 
to solve the problem more quickly. 
Try to pinpoint the problem to avoid replacing non-defective parts. 
For example, if you replace batteries and the  problem remains, put the original batteries 
back and go to the next step.  
Keep a record of the steps you take when  troubleshooting: The information may be use-
ful when calling for technical support or for passing on to service personnel. 
 
  
						

							
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: The image is blurred and distorted on NP4001 
Check the WXGA Mode is set to Off. (see page 72) 
When WXGA Mode is set to On, an XGA (1024 x 768) signal may not be recog-
nized on NP4001. In this case, select Off. 
To check if the signal is recognized,  go to Source under Information menu. 
(see page 
97 ) 
Problem: The image is wider at the top or bottom (trapezoid effect)  
1.  Position the projector so it is as perpendicular to the screen as possible.  
2.  Use the Keystone button on the remote control or projector to correct the 
problem. 
Problem: The image is reversed or upside down 
Check the  Orientation  setting on the  Setup menu of the OSD. 
Problem: The image is streaked  
1. Set the  Clock and Phase  settings on the  Adjust menu of the OSD to the de-
fault settings. 
2.  To ensure the problem is not caused by a connected PC’s video card, con-
nect to another computer.  
Problem: The image is flat with no contrast  
1. Adjust the  Contrast setting on the  Adjust menu of the OSD. 
2.  Adjust the Brightness setting on the  Adjust menu of the OSD. 
Problem: The color of the projected image does not match the source 
image. 
Adjust the Color  Temperature and Gamma Correction  settings on the Detail 
Settings  menu of the OSD.  
						

							
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 projector serviced. 
Problem: The lamp goes off 
1. Power surges can cause the lamp to tu rn off. Press the power button twice to 
turn off the projector. When the Power  LED is orange, press the power button. 
2.  Replace the lamp module. 
3.  Put the old lamp back in the projec tor and have the projector serviced. 
Remote Control Problems 
Problem: The projector does not respond to the remote control  
1. Direct the remote control towards remote sensor on the projector.  
2.  Ensure the path between remote and sensor is not obstructed. 
3.  Turn off any fluorescent lights in the room. 
4.  Check the battery polarity. 
5.  Replace the batteries. 
6.  Turn off other Infrared-enabled devices in the vicinity. 
7.  Have the remote control serviced.  
						

							
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.