NEC M311x Portbale Projector Users Manual

111
6. Installation and Connections
Connecting to a Wireless LAN (Optional: NP02LM series)
The	USB	 Wireless	 LAN	Unit	also	 provides	 a	wireless	 LAN	connection. 	To	 use	 a	wireless	 LAN	connection,	 you	are	
required	to	assign	an	IP	address	to	the	projector.
Important:
•	 If	 you	use	 the	projector	 with	the	USB	 Wireless	 LAN	Unit	in	the	 area	 where	 the	use	 of	wireless	 LAN	equipment	 is	
prohibited,	remove	the	USB	 Wireless	LAN	Unit	from	the	projector.
•	 Buy	the	appropriate	USB	 Wireless	LAN...

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6. Installation and Connections
Prepare	a	Phillips	screw	driver	beforehand.
1.	 Press	the	POWER	 button	to	turn	 off	the	 projector	 and	set	it	
into	standby	condition, 	and	disconnect	the	power	cord.
2.	 Remove	the	USB	(LAN)	port	cover.
 Loosen the screw securing the port cover.
	 •	 The	screw	is	not	removable. 	
3.	 Slowly	insert	the	USB	 Wireless	 LAN	Unit	into	the	USB	 (LAN)	
port.
 Remove the cap from the USB Wireless LAN Unit, and then insert 
it with the surface (side of indicator) facing...

113
6. Installation and Connections
Example	of	wireless	LAN	connection
(Network	Type	→	Infrastructure)
 PC with wireless 
LAN card inserted PC with built-in wireless 
LAN function
Wired LAN
Wireless access point
USB Wireless LAN Unit
To	
enable	 direct	communication	 (i.e.,	peer-to-peer)	 between	personal	 computers	 and	projectors,	 you	need	 to	
select	the	Ad	Hoc	mode.
Use	the	HTTP	server	function	to	make	the	settings. 	(→	page	41)
PC with wireless 
LAN card inserted PC with built-in wireless 
LAN...

114
This	section	 describes	 the	simple	 maintenance	 procedures	you	should	 follow	to	clean	 the	filters,	 the	lens,	 the	cabinet, 	
and	to	replace	the	lamp	and	the	filters.
1 Cleaning the Filters
The	air-filter	 sponge	keeps	dust	and	dirt	from	 getting	 inside	the	projector	 and	should	 be	frequently	 cleaned.	If	 the	 filter	
is	dirty	or	clogged,	your	projector	may	overheat.
NOTE:	 The	message	 for	filter	 cleaning	 will	be	displayed	 for	one	 minute	 after	the	projector	 is	turned	 on	or	off.	 When...

115
7. Maintenance
4.	 Remove	dust	from	the	filter	unit	and	the	filter	cover.
 Clean both outside and inside.
5.	 Attach	the	four	filters	to	the	filter	unit	and	the	filter	cover.
 Filter unit: Attach two coarse-texture sponge filters (large and 
small) to the filter unit.
 Filter  cover:  Attach  two  fine-texture  sponge  filters  (large  and 
small) to the filter cover.
 The  fine-texture  sponge  filter  has  slits  on  it.  Align  these  slits 
with the protrusions of the filter cover.
6.	 Attach	the...

116
7. Maintenance
 Cleaning the Lens
•	 Turn	off	the	projector	before	cleaning.
•	 The	projector	has	a	plastic	lens.	Use	a	commercially	available	plastic	lens	cleaner.
•	 Do	not	scratch	or	mar	the	lens	surface	as	a	plastic	lens	is	easily	scratched.
•	 Never	use	alcohol	or	glass	lens	cleaner	as	doing	so	will	cause	damage	to	the	plastic	lens	surface.
 Cleaning the Cabinet
Turn	off	the	projector,	and	unplug	the	projector	before	cleaning.
•	 Use	a	dry	soft	cloth	to	wipe	dust	off	the	cabinet.
	 If	heavily...

117
7. Maintenance
 Replacing the Lamp and the Filters
When	the	lamp	 reaches	 the	end	 of	its	 life,	 the	LAMP	 indicator	 in	the	 cabinet	 will	blink	 red	and	 the	message	 “THE	
LAMP	HAS	REACHED	 THE	END	 OF	ITS	 USABLE	 LIFE.	PLEASE		 REPLACE	 THE	LAMP	 AND	FILTER.” 	will	 appear	
(*).	Even	 though	 the	lamp	 may	still	be	working,	 replace	the	lamp	 to	maintain	 the	optimal	 projector	 performance. 	After	
replacing	the	lamp,	be	sure	to	clear	the	lamp	hour	meter. 	(→	page	99)
 CAUTION
•	 DO	NOT...

118
7. Maintenance
2.	 Remove	the	lamp	housing.
(1)	Loosen	the	two	 screws	 securing	 the	lamp	 housing	 until	the	phillips	 screwdriver	 goes	into	a	freewheeling	 condi-
tion.
	 •	 The	two	screws	are	not	removable.
	 •		There	 is	an	 interlock	 on	this	 case	 to	prevent	 the	risk	 of	electrical	 shock.	Do	 not	 attempt	 to	circumvent	 this	
interlock.
(2)	Remove	the	lamp	housing	by	holding	it.
Interlock
To	replace	the	lamp: 	
1.	 Remove	the	lamp	cover.
(1)	Loosen	the	lamp	cover	screw
	 •	The	lamp	cover...

119
7. Maintenance
This	completes	the	lamp	replacement.
Go	on	to	the	filter	replacement.
NOTE:	When	you	continue	 to	use	 the	projector	 for	another	 100	hours	 after	the	lamp	 has	reached	 the	end	 of	its	 life,	 the	projector	
cannot	turn	on	and	the	menu	is	not	displayed.
If	this	happens,	press	the	HELP	button	on	the	remote	control	for	10	seconds	to	reset	the	lamp	clock	back	to	zero.
When	the	lamp	time	clock	is	reset	to	zero,	the	LAMP	indicator	goes	out.
	
4.	 Reattach	the	lamp	cover.
(1)	Slide	the...

120
7. Maintenance
To	replace	the	filters:
Four	filters	are	made	of	non-woven	white	material,	packaged	with	the	replacement	lamp.
Honeycomb	hard	filter:	Large	and	small	sizes	(attached	to	the	filter	unit)
Accordion	soft	filter:	Large	and	small	sizes	(attached	to	the	filter	cover)
NOTE:	
•	 Replace	all	four	filters	at	the	same	time.
•	 Before	replacing	the	filters,	wipe	off	dust	and	dirt	from	the	projector	cabinet.	
•	 The	projector	is	precision	equipment.	Keep	out	dust	and	dirt	during	filter...