NEC P350w Projector User Manual

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7. Maintenance
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	 the	message	 is	
displayed,	clean	the	filters.	The	time	to	clean	the	filters	is	set	to	[OFF]	at	time	of	shipment.
To	cancel	the	message,	press	any	button	on	the	projector	cabinet	or	the	remote	control.
The	two-layer	 filter	on	the	 projector	 improves	 cooling	and	dust-proof	 capabilities	 compared	with	the	conventional	
models.
The	outsides	(intake	side)	of	the	first	and	second	layer	filters	remove	dust.
To	clean	the	filter,	detach	the	filter	unit	and	the	filter	cover.
 CAUTION
•	 Before	 cleaning	the	filters,	 turn	off	the	 projector,	 disconnect	 the	power	 cord	and	then	 allow	 the	cabinet	 to	cool. 	
Failure	to	do	so	can	result	in	electric	shock	or	burn	injuries.
1.	 Push	 up	the	 buttons	 on	the	 left	and	 right	 to	release	 the	
filter	unit	and	pull	it	out.
2.	 Remove	the	filter	unit	by	pulling	out	the	tab.
3.	 Remove	the	four	filters.
(1) Turn the filter unit over and pull out the two soft accordion 
filters (large and small).
Filter cover
Filter unit 
						

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7. Maintenance
(2) Push  the  left  end  of  each  filter  and  remove  the  hard  two 
honeycomb filters (large and small).
	 •		 The	 large	 filter	cannot	 be	removed	 by	pushing	 on	its	right	
end.
4.	 Use	a	vacuum	cleaner	to	vacuum	all	the	dust	inside.
 Get rid of dust in the accordion filter
NOTE:	
•	 Whenever	 you	vacuum	 the	filter,	 use	the	soft	 brush	 attachment	 to	
vacuum.	This	is	to	avoid	damage	to	the	filter.
•	 Do	not	wash	 the	filter	 with	water.	 Doing	so	can	 result	 in	filter	 clog-
ging.
5.	 Remove	dust	from	the	filter	unit	and	the	filter	cover.
  Clean both outside and inside.
6.	 Attach	the	four	filters	to	the	filter	unit.
(1) Insert the left end of each hard honeycomb filter (large and 
small) first and then the right end of each hard honeycomb 
filter to the filter unit.
	 •		 The	large	filter	cannot	be	fitted	if	its	right	end	is	inserted.
(2) Turn the filter unit over.
	 •		 Attach 	the 	two 	soft 	accordion 	filters 	(large 	and 	small). 	Each	
accordion filter has a slit on it. Align the slit with each pro -
trusion of the filter unit.
Slit 
						

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7. Maintenance
7.	 Put	the	filter	unit	back	to	the	projector	cabinet.
	 Make	sure	that	the	filter	 unit	is	placed	 in	the	 correct	 orienta-
tion.
8.	 Put	the	filter	cover	back	to	the	projector	cabinet.
  Insert  two  catches  of  the  top  side  of  the  filter  cover  into  the 
groove of the cabinet, and push the buttons on the left and right 
to close the filter cover.
•	 Push	the	filter	cover	until	it	clicks	into	place.
9.	 Clear	the	filter	usage	hours.
 Plug the power cord into the wall outlet, and then turn on the 
projector.
 From the menu, select [RESET] → [CLEAR FILTER HOURS]. 
(→ page 104)
  The interval time to clean the filters is set to [OFF] at time of 
shipment. When  using  the  projector  as  it  is,  you  do  not  clear 
the filter usage  
						

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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	soiled,	use	a	mild	detergent. 	
•	 Never	use	strong	detergents	or	solvents	such	as	alcohol	or	thinner. 	
•	 When	cleaning	the	ventilation	 slits	or	the	 speaker	 using	a	vacuum	 cleaner,	 do	not	 force	 the	brush	 of	the	 vacuum	
cleaner	into	the	slits	of	the	cabinet.
Vacuum the dust off the ventilation slits.
•	 Clogged	ventilation	slits	may	cause	a	rise	in	the	internal	temperature	of	the	projector,	resulting	in	malfunction.
•	 Do	not	scratch	or	hit	the	cabinet	with	your	fingers	or	any	hard	objects
•	 Contact	your	dealer	for	cleaning	the	inside	of	the	projector.
NOTE:	 Do	not	 apply	 volatile	 agent	such	as	insecticide	 on	the	 cabinet,	 the	lens,	 or	the	 screen.	 Do	not	 leave	 a	rubber	 or	vinyl	 product	
in	prolonged	contact	with	it.	Otherwise	the	surface	finish	will	be	deteriorated	or	the	coating	may	be	stripped	off.	 
						

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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	104)
 CAUTION
•	 DO	NOT	TOUCH	 THE	LAMP	 immediately	 after	it	has	 been	 used.	It	 will	 be	extremely	 hot.	Turn	 the	projector	
off	and	then	disconnect	the	power	cord. 	Allow	at	least	one	hour	for	the	lamp	to	cool	before	handling.
•	 Use	the	specified	lamp	for	safety	and	performance.
•	 DO	NOT	REMOVE	 ANY	SCREWS	 except	one	lamp	 cover	 screw	 and	two	lamp	 housing	 screws.	You	 could	 receive	
an	electric	shock.
•	 Do	not	break	the	glass	on	the	lamp	housing.
	 Keep	 finger	prints	off	the	 glass	 surface	 on	the	 lamp	 housing. 	Leaving	 finger	prints	on	the	 glass	 surface	 might	cause	
an	unwanted	shadow	and	poor	picture	quality.
•	 The	 projector	 will	turn	 off	and	 go	into	 standby	 mode	when	you	continue	 to	use	 the	projector	 for	another	 100	hours	
after	 the	lamp	 has	reached	 the	end	 of	its	 life. 	If	 this	 happens,	 be	sure	 to	replace	 the	lamp. 	If	 you	 continue	 to	use	
the	 lamp	 after	the	lamp	 reaches	 the	end	 of	its	 life,	 the	lamp	 bulb	may	shatter,	 and	pieces	 of	glass	 may	be	scattered	
in	the	 lamp	 case.	Do	 not	 touch	 them	as	the	 pieces	 of	glass	 may	cause	 injury.	If	 this	 happens,	 contact	your	NEC	
dealer	for	lamp	replacement.
*NOTE:	This	message	will	be	displayed	under	the	following	conditions:
•	 for	one	minute	after	the	projector	has	been	powered	on
•	 when	the		(POWER)	button	on	the	projector	cabinet	or	the	POWER	OFF	button	on	the	remote	control	is	pressed
To	turn	off	the	message,	press	any	button	on	the	projector	cabinet	or	the	remote	control.
Optional	lamp	and	tools	needed	for	replacement:
•	 Phillips	screwdriver	(plus-head)
•	 Replacement	lamp: 	 
NP16LP	(P350X) 
NP17LP	(P420X/P350W)
Flow of Replacing the Lamp and the Filters
Step 1.	 Replace	the	lamp	
Step 2.	 Replace	the	filters	(→	page	150)
Step 3.	 Clear	the	lamp	usage	hours	and	the	filter	usage	hours	(→	page	104) 
						

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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	screw	is	not	removable.
(2)	Push	and	slide	the	lamp	cover	off.
CAUTION:
Make	 sure	that	the	lamp	 housing	 is	cool	
enough	to	before	removing	it. 
						

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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	lamp	cover	back	until	it	snaps	into	place.
(2)	Tighten	the	screw	to	secure	the	lamp	cover.
	 •	Be	sure	to	tighten	the	screw.
3.	 Install	a	new	lamp	housing.
(1)	Insert	a	new	lamp	housing	until	the	lamp	housing	is	plugged	into	the	socket. 	
(2)	Push	the	top	center	of	the	lamp	housing	to	secure	it.
(3)	Secure	it	in	place	with	the	two	screws.
	 •	Be	sure	to	tighten	the	screws. 
						

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7. Maintenance
To replace the filters:
Four	filters	are	packaged	with	the	replacement	lamp.
Honeycomb	filter	(coarse	mesh):	Large	and	small	sizes	(attached	to	the	outside	of	the	filter	unit)
Accordion	filter	(fine	mesh):	Large	and	small	sizes	(attached	to	the	inside	of	the	filter	unit)
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	replacement.
•	 Do	not	wash	the	filters	with	soap	and	water.	Soap	and	water	will	damage	the	filter	membrane.	
•	 Put	filters	into	place.	Incorrect	attachment	of	a	filter	may	cause	dust	and	dirt	to	get	into	the	inside	of	the	projector.	
Before	replacing	the	filters,	replace	the	lamp. 	(→	page	148)
1.	 Push	up	the	buttons	on	the	left	and	right	to	release	the	filter	unit	and	pull	it	out.
2.	 Remove	the	filter	unit	by	pulling	out	the	tab.
3.	 Remove	the	four	filters.
(1) Turn the filter unit over and pull out the two soft accordion filters (large and small).
Filter cover
Filter unit 
						

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7. Maintenance
(2) Push the left end of each filter and remove the hard two honeycomb filters (large and small).
	 •	 The	large	filter	cannot	be	removed	by	pushing	on	its	right	end.
4.	 Remove	dust	from	the	filter	unit	and	the	filter	cover.
 Clean both outside and inside.
5.	 Attach	four	new	filters	to	the	filter	unit.
(1) Insert  the  left  end  of  each  hard  honeycomb  filter  (large  and  small)  first  and  then  the  right  end  of  each  hard 
honeycomb filter to the filter unit.
	 •		 The	large	filter	cannot	be	fitted	if	its	right	end	is	inserted.
(2) Turn the filter unit over.
	 •		 Attach	 the	two	 soft	 accordion	 filters	(large	 and	small). 	Each	 accordion	 filter	has	a	slit	 on	it.	Align	 the	slit	with	
each protrusion of the filter unit.
6.	 Put	the	filter	unit	back	to	the	projector	cabinet.
	 Make	sure	that	the	filter	unit	is	placed	in	the	correct	orientation.
7.	 Put	the	filter	cover	back	to	the	projector	cabinet.
 Insert two catches of the top side of the filter cover into the groove of the cabinet, and push the buttons on the left 
and right to close the filter cover.
	 Push	the	filter	cover	until	it	clicks	into	place.
This completes the filter replacement.
Go on to the clearing lamp and filter hour meters.
To clear the lamp usage hours and the filter usage hours:
1.	 Place	the	projector	where	you	use	it.
2.	 Plug	the	power	cord	into	the	wall	outlet, 	and	then	turn	on	the	projector.
3.	 Clear	the	lamp	usage	hours	and	the	filter	usage	hours.
1. From the menu, select [RESET] → [CLEAR LAMP HOURS] and reset the lamp usage hours.
2.  Select [CLEAR FILTER HOURS].and reset the filter usage hours. (→ page 104) 
						

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8. User Supportware
 Installing Software Program
Installation for Windows software
The	software	 programs	 except	Image	Express	 Utility	2	for	 Mac	 support	 Windows	 7,	Windows	 Vista,	and	Windows	
XP.
NOTE:
•	 To	 install	 or	uninstall	 each	software	 program,	 the	Windows	 user	account	 must	have	“Administrator”	 privilege	(Windows	 7,	Win-
dows	Vista)	or	“Computer	Administrator”	privilege	(Windows	XP).
•	 Exit	all	running	programs	before	installation.	If	another	program	is	running,	the	installation	may	not	be	completed.
•	 To	 run	Virtual	 Remote	 Tool	or	PC	 Control	 Utility	Pro	4	on	 Windows	 XP	Home	 Edition	 and	Windows	 XP	Professional,	 “Microsoft	
.NET	Framework	 Version	2.0	or	later”	 is	required.	 The	Microsoft	 .NET	Framework	 Version	2.0	or	later	 is	available	 from	Microsoft’s	
web	page.	Download	and	install	it	on	your	computer
•	 Image	Express	Utility	Lite	will	be	installed	to	the	system	drive	of	your	computer.
	 If	the	message	 “There	is	not	 enough	 free	space	 on	destination”	 is	displayed,	 free	up	enough	 space	(about	 100	MB)	 to	install	 the	
program.
 
1	 Insert	the	accompanying	NEC	Projector	CD-ROM	into	your	CD-ROM	drive.
  The menu window will be displayed.
TIP:
If	the	menu	window	will	not	be	displayed,	try	the	following	procedure.
For	Windows	7
1.	 Click	 “start”	on	Windows.
2.	 Click	 “All	Programs” 	→	“Accessories” 	→	“Run”.
3.	 Type 	your 	CD-ROM 	drive 	name 	(example: 	“Q:\”) 	and 	“LAUNCHER.EXE” 	in 	“Name”. 	(example: 	Q:\
LAUNCHER.EXE)
4.	 Click	 “OK”.
 the menu window will be displayed.