NEC P401w Projector User Manual

							19
2. Projecting an Image (Basic Operation)
❺ Adjusting the Picture Size and Position
Use	the	lens	 shift	dial,	the	adjustable	 tilt	foot	 lever,	 the	zoom	 lever	and	the	focus	 lever	to	adjust	 the	picture	 size	and	
position.
In	this	chapter	drawings	and	cables	are	omitted	for	clarity.
Adjusting	the	vertical	position	of	a	projected	image
[Lens	shift]
(→	page	20)
Adjusting	the	focus
[Focus	lever]
(→	page	21)
Finely	adjusting	the	size	of	an	image
[Zoom	lever]
(→	page	22)
Adjusting	the	throw	angle	(the	height	of	an	image)
[Tilt	foot]	*¹
(→	page	23)
Adjusting	the	left	and	right	tilt	of	an	image
[Rear	foot]
(→	page	23)
Adjusting	 the	vertical	 and	horizontal	 keystone	correc-
tion
[Keystone]
(→
	page	24)
NOTE*1:	Adjust	the	throw	angle	(the	height	of	an	image)	when	the	image	position	is	higher	than	the	lens	shift	adjustable	range.	 
						

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2. Projecting an Image (Basic Operation)
Adjusting the vertical position of a projected image (Lens shift)
Rotate	the	lens	shift	dial.
DownwardUpward
Lens shift dial
NOTE:
The	 lens	 shift	 dial	cannot	 be	rotated	 beyond	 the	maximum	 upward	or	downward	 shift.	Forcibly	 rotating	may	cause	 damage	 to	the	
projector.
TIP:
Lens	 shift	can	be	adjusted	 with	the	range	 below.	 If	you	 wish	 to	move	 up	the	 image	 higher	 than	this	limit,	 use	the	tilt	foot	 of	the	
projector.
Desktop	front	projection	
[P501X/P451X/PE501X]
[P451W/P401W]
Height of projected image
Height of projected image Vertical shift range (0 to 0.5V)
Vertical shift range (0 to 0.6V) 
						

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2. Projecting an Image (Basic Operation)
Ceiling	front	projection	
[P501X/P451X/PE501X]
[P451W/P401W]
Focus
Use	the	FOCUS	lever	to	obtain	the	best	focus.
Focus Lever
Height of projected image
Height of projected 
imageVertical shift range (0 to 0.5V)
Vertical shift range (0 to 0.6V) 
						

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2. Projecting an Image (Basic Operation)
Zoom
Use	the	ZOOM	lever	to	adjust	the	image	size	on	the	screen.
Zoom Lever 
						

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2. Projecting an Image (Basic Operation)
2
1
3
Adjustable Tilt FootAdjustable Tilt 
Foot Lever
Adjust the Tilt Foot
1.		Lift	the	front	edge	of	the	projector.
 CAUTION:
Do	 not	 try	to	touch	 the	ventilation	 outlet	during	 Tilt	Foot	 adjustment	
as	it	can	 become	 heated	while	the	projector	 is	turned	 on	and	 after	 it	
is	turned	off.
2.		Push	 up	and	 hold	 the	Adjustable	 Tilt	Foot	 Lever	 on	the	 front	 of	
the	projector	to	extend	the	adjustable	tilt	foot.
3.		Lower	the	front	of	the	projector	to	the	desired	height.
4.		Release	 the	Adjustable	 Tilt	Foot	 Lever	 to	lock	 the	Adjustable	 tilt	
foot.
	 The	tilt	foot	can	be	extended	up	to	1.6	inch/40	mm.
 There is approximately 10 degrees (up) of adjustment for the front of 
the projector.
 Rotate the rear foot to the desired height in order to square the image 
on the projection surface.
 CAUTION:
•	 Do	not	use	the	tilt-foot	for	purposes	other	than	originally	intended.
	 Misuses	 such	as	using	 the	tilt	foot	 to	carry	 or	hang	 (from	 the	wall	 or	
ceiling)	the	projector	can	cause	damage	to	the	projector.
Adjusting	the	left	and	right	tilt	of	an	image	[Rear	foot]
•	 Rotate	the	rear	foot.
	 The	 rear	foot	can	be	extended	 up	to	0.5	 inch/12	 mm.	Rotating	 the	rear	
foot allows the projector to be placed horizontally.
NOTE:
•	 Do	 not	extend	 the	rear	 foot	 beyond	 its	height	 limit	(0.5	inch/12	 mm).	Doing	 so	
may	cause	the	rear	foot	to	come	out	of	the	projector.	
	
Rear foot
Up Down 
						

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2. Projecting an Image (Basic Operation)
❻ Correcting Keystone Distortion [KEYSTONE]
When	the	projector	 is	not	 exactly	 perpendicular	 to	the	 screen,	 keystone	 distortion	 occurs.	To	 overcome	 it,	you	 can	 use	
the	“Keystone” 	function,	 a	digital	 technology	 that	can	adjust	 for	keystone-type	 distortion,	resulting	in	a	crisp,	 square	
image.
The	following	 procedure	 explains	how	to	use	 the	[KEYSTONE]	 screen	from	the	menu	 to	correct	 trapezoidal	 distor-
tions.
When	the	projector	is	placed	diagonally	to	the	screen,	
When	 the	projector	 is	set	 up	at	an	 angle	 in	relation	 to	the	 screen,	 adjust	the	Horizontal	 option	of	the	 Keystone	 menu	
so	that	the	top	and	bottom	of	sides	of	the	projected	image	are	parallel.
NOTE:
•	 Before	performing	 the	horizontal	 keystone	correction,	 set	the	 lens	 shift	 to	the	 position	 of	0.5	 V	(P501X/P451X/PE501X)/0.6	 V	
(P451W/P401W). 	
1.
 Press the ▼ button on the projector cabinet.
  The Keystone screen will be displayed on the screen.
•	 Press	the	KEYSTONE	button	when	using	the	remote	control.
•	 See	page	for	PINCUSHION.
•	 See	page	for	CORNERSTONE.
•	 See	page	for	RESET.
2. Press the ▼	button	 to	select	 [VERTICAL]	 and	then	 use	the	◀ or  ▶ 
so	that	 the	left	and	 right	 sides	 of	the	 projected	 image	are	paral-
lel.
*	 Adjust	the	vertical	keystone	distortion.
Projected area
Screen frame
3.	 Align	 the	left	(or	right)	 side	of	the	 screen	 with	the	left	(or	right)	
side	of	the	projected	image.
•	 Use	the	shorter	side	of	the	projected	image	as	the	base.
•	 In	the	right	example,	use	the	left	side	as	the	base.
Align left side 
						

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2. Projecting an Image (Basic Operation)
4. Press the ▲	button	 to	select	 [HORIZONTAL]	 and	then	 use	the	◀ 
or  ▶
	so	 that	 the	top	 and	 bottom	 sides	of	the	 projected	 image	are	
parallel.
•	 Adjust	the	horizontal	keystone	distortion.
5.	 Repeat	steps	2	and	4	to	correct	keystone	distortion.
6.	 After	completing	Keystone	correction, 	press	the	EXIT	button.
 The Keystone screen will disappear.
•	 To 	perform	 Keystone 	correction 	again,	 press	the	▼ button to display 
the Keystone screen and repeat above steps 1 to 6.
To	return	the	keystone	adjustments	to	default:
1.  Press the ▼	button	to	select	[RESET]	and	press	the	ENTER	button.
2.  Press the ◀ or ▶	button	to	select	[YES]	and	press	the	ENTER	button.
  The adjustments will be reset.
 All the adjustments for all the five items will be reset at the same time.
•	 The	 KEYSTONE	 feature	can	cause	 an	image	 to	be	 slightly	 blurred	 because	 the	correction	 is	made	 electroni-
cally. 
						

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2. Projecting an Image (Basic Operation)
❼ Optimizing Computer Signal Automatically
Adjusting the Image Using Auto Adjust
Optimizing	a	computer	image	automatically.	(COMPUTER)
Press	the	AUTO	ADJ.	button	to	optimize	a	computer	image	automatically.
This	adjustment	may	be	necessary	when	you	connect	your	computer	for	the	first	time.
[Poor picture]
[Normal picture]
NOTE:
Some	signals	may	take	time	to	display	or	may	not	be	displayed	correctly.
•	 If	the 	Auto 	Adjust 	operation 	cannot 	optimize 	the 	computer 	signal, 	try 	to 	adjust 	[HORIZONTAL], 	[VERTICAL], 	[CLOCK], 	and 	[PHASE]	
manually.	(→	page	96,	97)
❽ Turning Up or Down Volume
Sound	level	from	the	speaker	can	be	adjusted.
TIP:	 When	 no	menus	 appear,	 the	◀	and	▶	buttons	 on	the	 projector	 cabinet	work	
as	a	volume	control.	
NOTE:
•	 Volume 	control 	is 	not 	available 	with 	the 	◀	or	▶	button 	when 	an 	image 	is 	enlarged	
by	using	the	D-ZOOM	(+)	button	or	when	the	menu	is	displayed.
•	 Volume 	control 	is 	not 	available 	with 	the 	◀	or	▶	button	 when	VIEWER	 is	
used.
TIP:	
•	 The	 [BEEP]	 sound	volume	 cannot	be	adjusted.	 To	turn	 off	the	 [BEEP]	 sound,	
from	the	menu,	select	[SETUP]	→	[OPTIONS	(1)]	→	[BEEP]	→	[OFF].
•	 Volume	can	be	controlled	from	the	menu	([ADJUST]	→	[AUDIO])
 
Increase	volume
Decrease volume 
						

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2. Projecting an Image (Basic Operation)
❾ Turning off the Projector
To	turn	off	the	projector:
1. First,  press  the   (POWER)  button  on  the  projector 
cabinet or the POWER OFF button on the remote con -
trol. 
  The confirmation message will be displayed.
2.	 Secondly, 	press 	the 	ENTER 	button 	or 	press 	the 	 
(POWER)	or	the	POWER	OFF	button	again.
 The lamp will turn off and the projector will go into standby 
mode. When  in  standby  mode,  the  POWER  indicator  will 
light orange and the STATUS indicator will light green when 
[NORMAL] is selected for [STANDBY MODE]. 
Power	On
Steady blue light
Standby
Steady  
orange light
 CAUTION:
Parts	 of	the	 projector	 may	become	 temporarily	 heated	if	the	 projector	 is	turned	 off	with	 the	POWER	 button	or	if	the	
AC	power	supply	is	disconnected	during	normal	projector	operation.
Use	caution	when	picking	up	the	projector.
NOTE:
•	 While	the	power	indicator	is	blinking	blue	in	short	cycles,	the	power	cannot	be	turned	off.
•	 You	cannot	turn	off	the	power	for	60	seconds	immediately	after	turning	it	on	and	displaying	an	image.
•	 Do	 not	disconnect	 the	AC	power	 supply	 to	the	 projector	 within	10	seconds	 of	making	 adjustment	 or	setting	 changes	 and	closing	
the	menu.	Doing	so	can	cause	loss	of	adjustments	and	settings. 
						

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2. Projecting an Image (Basic Operation)
❿ After Use
Preparation:	Make	sure	that	the	projector	is	turned	off.
1.	 Unplug	the	power	cord.
2. Disconnect any other cables.
•	 Remove	the	USB	memory	if	it	is	inserted	into	the	projector.
3.	 Retract	adjustable	tilt	foot	if	extended.
4.	 Slide	the	lens	cover	to	the	right	to	cover	the	lens.