NEC Projector Np4001 User Manual

							
5. Using On-Screen Display 
99 
Version 
The Version tab displays all the version and pr oduct details of the projector and associ-
ated software. 
NP4000 Version Screen: 
 
 
NP4001 Version Screen: 
  
						

							
5. Using On-Screen Display 
100
The following table lists all items with a description. 
ITEM DESCRIPTION 
Product  Displays Product ID. 
Serial Number  Displays projector Serial Number. 
Firmware Displays Firmware version and Color Wheel currently installed (4-seg 
or 6-seg). 
Data 
Displays Data version.  
						

							
5. Using On-Screen Display 
101 
v Reset Menu Descriptions and Functions 
Occasionally, circumstances may require that  factory defaults are reset, for demonstration 
purposes for example, or when components are replaced. 
The Reset menu contains options for returning  settings to the factory default and is accessed 
via the Main menu. 
 
The following table lists all items with a description. 
ITEM DESCRIPTION 
Current Signal  Reset the adjustments for current signal to factory preset levels. All 
items in 
Adjust can be reset. 
All Data  Reset all the adjustments and settings for all the signals to the factory 
preset except 
Language, Background , Control Panel Lock , Secu-
rity , LAN Mode , Communication Speed , Lamp Life Remaining , 
Lamp Hours Used , and Filter Hours Used . 
Clear Lamp1 Hours
Reset lamp1 hours 
Clear Lamp2 HoursReset lamp2 hours 
Clear Filter Hours Reset filter hours  These options should only be 
used when components are 
cleaned or replaced (see 6. 
Maintenance on page 105
).  
						

							
 
102 
6. Maintenance 
n Cleaning the projector 
Cleaning the Cabinet
 
Refer to the following guide to clean the projector cabinet. 
1.  Wipe off dust with a clean dampened cloth. 
2.  Moisten the cloth with warm water and mild detergent and wipe the cabinet. 
3.  Rinse all detergent from the cl oth and wipe the projector again. 
CAUTION 
  To prevent discoloration or fading of
 the case, do not use abrasive alco-
hol-based cleaners. 
 
Cleaning the Lens 
Refer to the following guide to clean the projector lens.  
1.  Apply a little optic lens cleaner to a clean, lint free cloth (do not apply the cleaner  directly to the lens). 
2.  Lightly wipe the lens in a circular motion. 
 
CAUTION 
  Do not use abrasive cleaners or solvents. 
To prevent discoloration or fading, 
avoid getting cleaner on the projector 
case. 
  
						

							
6. Maintenance 
103 
Cleaning the Filters 
The projector uses three filters to keep the  fans free of dust and other particles, and 
should be cleaned every 500 hours of operati on. In dustier environments, it is recom-
mended to clean the filters more frequently. If t he filter is dirty or clogged, your projector 
may overheat. When the message below is displayed the filters must be cleaned. 
 
Note:   
When the  Please clean filter  message is displayed,  please clean or replace 
all three filters at the same time to  synchronize the hours used display.  
The Filter Message item should be enabled  in the Options menu. Refer to Op-
tions on page 95. 
Refer to the following guide to clean the filters. 
1.  Lift the projector to  
expose the underside to 
locate the first filter.  
See the drawing on the 
right. 
Note:  Only clean the out-
side of the exhaust vents 
with a vacuum cleaner. Bottom view
 
2.   The left-hand filter can be 
accessed as shown.  
  
						

							
6. Maintenance 
104
  
 
3.  The rear filter can be  
accessed as shown. 
 
Once the filters are cleaned, please  reset the filter hours via the Clear Filter Hours op-
tion in the 
v  Reset Menu Descriptions and Functions on page 101 . 
Note: 
Using the projector without t he air filter fitted inside, dirt and dust are sucked into 
the projector, causing failure.  
  
						

							
6. Maintenance 
105 
o Replacing Consumable Parts 
During the course of normal usage, consumable  parts become worn out resulting in reduced 
performance. The following guides detail how to replace the various consumable parts within 
the projector quickly and safely. 
Before replacing any of the parts, please take note of the following: 
•  Ensure that the projector is turned o ff and disconnected from the power supply. 
•   Ensure that the projector is in a cle an, stable position before replacing parts. 
•   Allow at least one hour after shutdown for the projector to cool before attempting to 
replace any consumable parts. 
•   Do not interchange Lamp 1 and Lamp 2 after the projector has been used once.  
Doing so will not allow the projector to  display the correct lamp usage hours. 
•   A minimum space is required for replacement. See pages 
27  and  106 for more de-
tails. 
Replacing the Filters 
When the lamps are replaced, the filter s should also be replaced, not cleaned. 
Refer to the following guide to replace the filters. 
  CAUTION: 
Do not drop the projector on your hand 
or fingers while lifting the projector to 
replace the filters. Doing so c ould injure your hand or fingers. 
Note: 
The filters on the side and the r ear are located on the bottom. 
1.  Gently slide the filter  
covers in the direction 
shown. 
 
2.  Lift the foam from all 
three filters in the  
direction shown. Remove 
completely from the filter 
cover and discard. 
  
						

							
6. Maintenance 
106
3.  Insert replacement foam 
and press down firmly. 
 
4.  Replace the filter covers 
by pushing gently in the 
direction shown. 
 
 
Once the filters are replaced, plea se reset the filter hours via the Clear Filter Hours op-
tion in the 
v  Reset Menu Descriptions and Functions on page 101 . 
 
  
						

							
6. Maintenance 
107 
Replacing the Lamps 
When a lamp reaches the end of it’s usable lif e, the following message is displayed. Re-
place the lamp. 
 
The projection lamps should be replaced when they burn out. They should only be re-
placed with a certified replacement part,  contact your local dealer if unsure. 
Note: 
1. Lamps are positioned differently. Take ca re not to force the lamps when replac-
ing. 
 
2. Installation of both lamp modules (Lamp 1 and Lamp 2) is required to operate 
the projector in dual or single lamp mode.  If only a single lamp module is installed, 
the projectors lamp will not turn on and will appear as a lamp failure 
 
3. Lamps last approximately 2000-2100 hours (2500-2600 hours in Eco mode) 
and the End of lamp life message is displa yed during the lamps final 100 hours of 
operational life. Please replace during 2000-2100 hour. 
Important: 
1. The lamp contains a certain amount of  mercury and should be disposed of ac-
cording to local ordinance regulations. 
2. Avoid touching the glass surface of t he new lamp: doing so may shorten its op-
eration life. 
3. If the lamp’s useful life ends and proj ector could not turn on over 2100 hours, 
please have the projector serviced. 
Note: 
The projector turns off and goes into standby mode after 2100 hours (up to 2600 
hours in Eco mode) of service. In this  condition you cannot clear the lamp hour 
meter using the menu. Should this condit ion exist, press the HELP button on the 
remote control for 10 seconds to reset the lamp clock back to zero.  
Ensure the lamp is replaced before performing this operation. 
  
						

							
6. Maintenance 
108
To replace the lamp, refer to the following. 
1.  Loosen the screw on the lamp 
cover (A), and remove the 
lamp cover as shown (B). 
 
2.   Loosen the two captive screws 
(A) on the lamp module. Lift 
the module handle up (B) in 
the direction shown. 
A
A
 
B
B
 
3.  Pull firmly on the module 
handle in the direction shown 
to remove the lamp. 
4.   Reverse steps 1 to 3 to install 
the new lamp module and re-
place the lamp cover. 
 
Note:   
The filters should be replaced when  replacing the lamp modules.