NEC Projector PH1400U User Manual

187
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...

188
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...

189
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...

190
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:...

191
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....

192
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...

193
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....

194
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)...

195
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) 

196
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,...