NEC Projector PH1400U User Manual

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7. Maintenance
4. Put the filter back into place.
	 Insert	the	filter	with	 “↓	AIR	FLOW	↓”	facing	the	projector.
(1)	 	
Insert	the	filter	in	the	inlet.
(2)  Fit	the	top	edge	of	the	filter	in	the	inlet.
Filter
5. Place the filter cover back into the projector cabinet.
(1)	 	
Align	the	knob	(screw)	with	the	screw	hole.
(2)		
Tighten	each	of	the	two	knobs	by	turning	it	clockwise.
1
2
Screw	hole
Filter cover
6.	 Clear	the	filter	usage	hours.
 
Plug  the  power  cord  into  the  wall  outlet,  turn  on  the  main 
power switch, and then turn on the projector.
	 From	 the	menu,	 select	[RESET]	→	[CLEAR 	FILTER 	HOURS]	
and	reset	the	filter	usage	hours. 	(→ page 143) 
						

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7. Maintenance
❷ Cleaning the Lens
•	 Turn	off	the	projector	before	cleaning.
•	 Use	a	blower	or	lens	paper	to	clean	the	lens,	and	be	careful	not	to	scratch	or	mar	the	lens.	
❸ 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
❹ 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	 1	(or	 2).	USE	 THE	SPECIFIED	
LAMP	 FOR	SAFETY	 AND	PERFORMANCE.” 	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	142)
 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	two	(2)	lamp	 cover	 screw	 and	three	 (3)	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: 	 
NP25LP
Flow of Replacing the Lamp and the Filters
The	following	procedure	is	an	example	for	replacing	both	lamps.
Step 1.  Replace the lamp 
Step 2. Replace the filters (→ page 192)
Step 3.	 Clear	the	lamp	usage	hours	and	the	filter	usage	hours	(→ page 142,  143) 
						

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7. Maintenance
To replace the lamp: 
1. Remove the lamp cover.
(1)	Loosen	the	two	lamp	cover	screws.
	 •	 The	lamp	cover	screw	is	not	removable.
(2)	Pull	the	lamp	cover	towards	you	and	remove	it.
2. Remove the lamp housing.
(1)	Loosen	 the	three	 screws	 securing	 the	lamp	 housing	 until	the	phillips	 screwdriver	 goes	into	a	freewheeling	 condi-
tion.
	 •	 The	three	screws	are	not	removable.
	 •		 Do	not	touch	the	exhaust	fan	power	connectors.
(2)	Remove	the	lamp	housing	by	holding	it.
 CAUTION:
Make	sure	that	the	lamp	housing	is	cool	enough	to	handle	before	removing	it.
Exhaust fan power 
connector
Handle 
						

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7. Maintenance
3. Install a new lamp housing.
(1)	Insert	a	new	lamp	housing	until	the	lamp	housing	is	plugged	into	the	socket. 	
(2)	Secure	it	in	place	with	the	three	screws.
	 •	Be	sure	to	tighten	the	screws.
NOTE:
•	 Be	sure	to	install	both	Lamp	1	and	Lamp	2.	The	projector	will	not	turn	on	unless	both	the	lamps	are	installed.
Alignment	holeGuide	pin
4.
 Reattach the lamp cover.
(1)	Align	 the	left	side	 of	the	 lamp	 cover	 with	the	left	side	 of	the	 lamp	 housing	 and	reattach	 the	lamp	 cover. 	While	
doing	so,	place	the	wire	inside	the	lamp	compartment	so	as	not	to	get	it	caught	under	the	lamp	cover.
(2)	Tighten	the	two	screws	to	secure	the	lamp	cover.
	 •	Be	sure	to	tighten	the	screws.
Wire
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,	 both	 LAMP	 1	
and	LAMP	2	indicators	will	light	red	and	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.	When	 only	one	lamp	 is	replaced,	 select	[RESET]	 from	the	
menu	to	reset	the	lamp	hour	used.	Do	not	press	the	HELP	button.
  
						

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7. Maintenance
❺ Replacing the Filters
It	is	 recommended	 that	the	filters	 are	cleaned	 after	every	 5000	hours	 of	use	 and	 replaced	 after	every	 10000	 hours	of	
use.	These	hours	can	vary	depending	on	your	usage	environment.
There	are	two	filters,	one	located	at	the	front	of	the	projector	and	one	on	the	side.
Optional	filters	NP03FT	(two	filter)	are	available.
Small	one	for	the	front
Large	one	for	the	left	side
NOTE:
•	 Replace	both	filters	with	the	new	ones	at	the	same	time.
•	 Before	 replacing	 the	filters,	 use	a	vacuum	 cleaner	to	vacuum	 dust	and	dirt	from	 the	vents	 (inlet)	 of	the	 projector	 and	use	a	dry	
soft cloth to wipe dust off the cabinet.
•	 The	projector	contains	high-precision	parts.	Keep	out	dust	and	dirt	during	filter	replacement.
•	 Do	not	wash	the	filter	with	water.	Water	will	damage	the	filter	membrane.
•	 Attach	 the	filter	 in	the	 correct	 orientation.	 Failure	to	do	 so	may	 cause	 dust	and	dirt	to	enter	 inside	 the	projector,	 resulting	in	projec-
tor malfunction.
Filter cover
Inlet
(The	filter	is	inside)
Filter cover
Inlet
(The	filter	is	inside.)
Replacing the filter on the left side
1.  Remove the filter cover.
(1)	Loosen	 each	of	the	 two	 knobs	 by	turning	 them	counter-
clockwise.
	 •		 The	knobs	are	not	removable.
	 •		 If	the 	knob 	is 	too 	tight 	to 	turn, 	use 	a 	Phillips 	screw-
driver.
(2)	Remove	 the	filter	 cover	 by	sliding	 it	to	 the	 left	and	 pulling	
it out.
12
Filter cover
Notch
Knob 
						

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7. Maintenance
2. Remove the filter.
	 Pull 	the 	top 	of 	the 	filter 	outward 	and 	remove 	the 	filter 	by 	lifting	
it up.
Filter
3.  Install the new filter.
	 Insert	the	filter	with	 “↓	AIR	FLOW	↓”	facing	the	projector.
(1)	 	
Insert	the	filter	in	the	flange.
(2)  Fit	the	top	edge	of	the	filter	in	the	inlet.
1
2
Flange
4. Place the filter cover back onto the projector cabinet.
(1)	 	
Insert	 the	guide	 pin	(4	locations)	 of	the	 projector	 into	the	
notch	(4	locations)	of	the	filter	cover.
Notch
Guide	pin
(2)	
	
Slide	 the	filter	 cover	 to	the	 right	 and	tighten	 each	of	the	
two	knobs	by	turning	them	clockwise. 	
NOTE:
Be	sure	 to	clean	 both	filters	 (left	and	front	 sides)	 to	display	 the	filter	
usage hours as accurate as possible.
  
						

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7. Maintenance
Replacing the filter on the front side
1. Remove the filter cover.
(1)	Loosen	 each	of	the	 two	 knobs	 by	turning	 them	counter-
clockwise.
	 •		 The	knobs	are	not	removable.
	 •		 If	the 	knob 	is 	too 	tight 	to 	turn, 	use 	a 	Phillips 	screw-
driver.
(2)	Remove	the	filter	cover	by	pulling	it	out.
1
2
Knob
2.  Remove the filter.
	 Remove	the	filter	by	pulling	it	to	the	right.
Filter
3.  Install the new filter.
	 Insert	the	filter	with	 “↓	AIR	FLOW	↓”	facing	the	projector.
(1)	 	
Insert	the	filter	in	the	inlet.
(2)  Fit	the	top	edge	of	the	filter	in	the	inlet.
Filter
4. Place the filter cover back into the projector cabinet.
(1)	 	
Align	the	knob	(screw)	with	the	screw	hole.
(2)		
Tighten	each	of	the	two	knobs	by	turning	it	clockwise.
1
2
Screw	hole
Filter cover
This completes the filter replacement.
Go on to the clearing lamp and filter hour meters. 
						

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7. Maintenance
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. 	(→ page 142)
2.	 Select	[CLEAR	FILTER	HOURS]	and	reset	the	filter	usage	hours. 	(→ page 143) 
						

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8. User Supportware
❶ Installing Software Program
Installation for Windows software
The	software	 programs	 except	Image	Express	 Utility	2	for	 Mac	 and	PC	Control	 Utility	Pro	5	support	 Windows	 8,	Win-
dows	7,	 Windows	 Vista,	and	 Windows	XP.
1.	 Download 	the 	updated 	software 	program 	from 	our 	web 	site 	(http://www.nec-display.com/dl/en/index.
html)
NOTE:
•	 To	 install	 or	uninstall	 each	software	 program,	 the	Windows	 user	account	 must	have	“Administrator”	 privilege	(Windows	 8,	Win-
dows	7,	Windows	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	 8	and	 Windows	 XP	Professional,	 “Microsoft	.NET	Framework	
Version	 2.0”	is	required.	 The	Microsoft	 .NET	Framework	 Version	2.0,	3.0	or	3.5	 is	available	 from	Microsoft’s	 web	page.	 Download	
and install it on your computer.
 
1.	 Connect 	your 	computer 	to 	the 	internet 	and 	visit 	our 	website 	(http://www.nec-display.com/dl/en/index.
html).
2.	 Download	the	supported	software	programs	from	 “Download”	and	save	an	 “.exe”	file	to	your	computer.
 File name is different depending on the version of the software program.
3.	 Click	the	 “.exe”	file.
 The installation will start.
 Follow the instructions on the installer screens to complete the installation.
TIP:
Uninstalling a Software Program
Preparation:
Exit	 the	software	 program	before	uninstalling. 	To	 uninstall	 the	software	 program,	 the	Windows	 user	account	 must	have	
“Administrator” 	privilege	 (Windows	 8,	Windows	 7	and	 Windows	 Vista)	or	“Computer	 Administrator” 	privilege	 (Windows	
XP).
•	For	Windows	7/Windows	 Vista
1	 Click	“Start”	and	then	 “Control	Panel”.
	 The	Control	Panel	window	will	be	displayed.
2	 Click	“Uninstall	a	program” 	under	“Programs”
	 The	“Programs	and	Features” 	window	will	be	displayed.
3	 Select	the	software	program	and	click	it.
4	 Click	“Uninstall/Change” 	or	“Uninstall”.
	 •	 When	the	 “User	Account	Control” 	windows	is	displayed,	click	 “Continue”.
 Follow the instructions on the screens to complete the uninstallation.
•	For	 Windows	XP
1	 Click	 “Start”	and	then	 “Control	Panel”.
	 The	Control	Panel	window	will	be	displayed.
2	 Double-click	 “Add	/	Remove	Programs”.
	 The	Add	/	Remove	Programs	window	will	be	displayed.
3	 Click	the	software	program	from	the	list	and	then	click	 “Remove”.
 Follow the instructions on the screens to complete the uninstallation.