NEC Projector Um280xi User Manual

121
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.
To	replace	the	lamp: 	
1. Remove the lamp cover.
(1)	Loosen	the	lamp	cover	screw
	 •	 The	lamp	cover	screw	is...

122
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...

123
7. Maintenance
To	replace	the	filters:
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...

124
7. Maintenance
3. Remove the four filters and use a vacuum cleaner to vacuum 
all the dust inside and outside.
  Get rid of dust in the sponge 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	 clogging.
4. Remove  dust  from  the  filter  cover  and  the  two  filter  cases 
(large	and	small).
  Clean both outside and inside.
5.	 Attach...

125
7. Maintenance
6.	 Insert	the	large	filter	case	into	the	projector	cabinet.
	 Make	sure	that	the	filter	 case	 is	inserted	 in	the	 correct	 orienta-
tion.
7.  Put the small filter case to the projector cabinet.
	 Make	 sure	that	the	filter	 case	 is	inserted	 in	the	 correct	 orienta-
tion.
8.  Put the filter cover back to the projector cabinet.
	 Insert	 two	catches	 of	the	 tip	of	the	 filter	 cover	 into	the	groove	 of	the	
cabinet, and push the button to close the filter cover.
•	 If 	you 	find...

126
8. Appendix
1 Troubleshooting
This	section	helps	you	resolve	problems	you	may	encounter	while	setting	up	or	using	the	projector.
Indicator Messages
Power	Indicator
Indicator ConditionProjector	ConditionNote
Off The main power is off –
Blinking light Blue
0�5 sec On,0�5 sec OffThe projector is getting ready to turn on�Wait for a moment�
2�5 sec On,0�5 sec OffOff Timer is enabled� –
Steady lightBlueThe projector is turned on�–
Orange [NORMAL] is selected for [STANDBY MODE] –
Red [POWER-SAVING]  is...

127
8. Appendix
Common Problems & Solutions
(→	“Power/Status/Lamp	Indicator” 	on	page	126.)
ProblemCheck	These	Items
Does not turn on
or shut down•	 Check	 that	the	power	 cord	is	plugged	 in	and	 that	 the	power	 button	 on	the	 projector	 cabinet	or	the	 remote	 control	is on� (→ pages 15, 16)•	 Ensure	that	the	lamp	cover	is	installed	correctly.	(→ page 122)•	 Check	 to	see	 if	the	 projector	 has	overheated.	 If	there	 is	insufficient	 ventilation	around	the	projector	 or	if	the	 room	where you are...

128
8. Appendix
ProblemCheck	These	Items
Mic sound is not heard•	 Check	if	your	microphone	cable	is	connected	to	the	MIC	input	jack	correctly.•	 Check	if	you	use	a	dynamic	microphone.	Plug	in	power	microphones	are	not	supported	by	the	projector.	
Mic  sound  is  too  loud 
or quiet•	 Adjust	[MIC	GAIN]	from	the	menu.	(→ page 92)
For	more	information	contact	your	dealer.
If there is no picture, or the picture is not displayed correctly.
•	 Power	on	process	for	the	projector	and	the	PC.
	 Be	sure	to	connect...

129
8. Appendix
 Specifications
This	section	provides	technical	information	about	projector’s	performance.
Optical
Model	NumberNP-UM330XNP-UM280XNP-UM330W NP-UM280WLCD	Panel0.63	inch	LCD	with	Micro	Lens	Array	(Aspect	Ratio	4:3)0.59	inch	LCD	with	Micro	Lens	Array	(Aspect	Ratio	16:10)Resolution*11024	×	768	pixels	(XGA)1280	×	800	pixels	(WXGA)LensDigital	zoom	and	manual	focusDigital	Zoom	Ratio	=	1.4F	=	1.8	f	=	4.78	mmLamp265	W	AC	(195	 W	in	NORMAL)(160	W	in	ECO)
230	W	AC	(170	 W	in	NORMAL)(140	W	in	ECO)...

130
8. Appendix
Model	NumberNP-UM330XNP-UM280XNP-UM330W NP-UM280WBuilt-in	Speaker16	W	(monaural)Power	Requirement100–240V	AC,	50/60HzInput	Current4.0	A/1.7	A3.6	A/1.6	A4.0	A/1.7	A3.6	A/1.6	APower	Con-
sumptionECO	MODE	OFF360	 W	(100-130	 V)344	W	(200-240	 V)318	W	(100-130	 V)304	W	(200-240	 V)360	W	(100-130	 V)344	W	(200-240	 V)318	W	(100-130	 V)304	W	(200-240	 V)NORMAL272	W	(100-130	 V)263	W	(200-240	 V)242	W	(100-130	 V)235	W	(200-240	 V)272	W	(100-130	 V)263	W	(200-240	 V)242	W	(100-130	 V)235	W...