NEC Projector PA621U User Manual

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2. Projecting an Image (Basic Operation)
TIP:	
•	 The	diagram	 below	shows	 the	lens	 shift	 adjustment	 range	for	the	 PA722X/PA721X/PA622X/PA621X	 (projection	mode:	desktop	
front).	To	raise	the	projection	position	higher	than	this,	use	the	tilt	feet.	(→	page	21)
•	 For	the	PA672W/PA671W/PA572W/PA571W/PA622U/PA621U/PA522U/PA521U	 and	the	ceiling	 mount/front	 projection	lens	shift	
adjustment	range,	see	page	205,	206.
1V
1H
0.5V
0.1V
0.1H
0.1H
PA600X/P A500X
0.3H0.3H
Vertical shift range (0 to 0.5V)
Height of projected image
Focus
Applicable	lens:
	NP12ZL/NP13ZL/NP14ZL/NP15ZL
Use	the	FOCUS	ring	to	obtain	the	best	focus.
Focus ring 
						

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2. Projecting an Image (Basic Operation)
Applicable lens: NP11FL
With	the	NP11FL	lens,	adjust	the	focus	and	picture	distortion.
Preparations:
Turn	the	lens	shift	dials	(vertical	and	horizontal)	on	the	projector	to	return	the	lens	shift	to	the	center.
Approximate	lens	center	position	(explained	here	for	the	desktop	front	projection	mode)
Horizontal	dial:	 First	turn	the	dial	 to	the	 left	edge,	 then	turn	it	further	 so	that	 the	knob	 is	horizontal. 	From	 this	
position,	turn	the	dial	1	full	turn	clockwise.
Vertical	dial:	 First	turn	the	dial	to	the	bottom	edge,	then	turn	it	further	so	that	the	knob	is	horizontal.
	 From	this	position,	turn	the	dial	2	full	turns	counterclockwise.
1.  Turn the distortion ring to the left edge.
2. Turn  the  focus  lever  clockwise  and  counterclockwise  to 
adjust the focus at the center of the screen.
3.  Use the distortion ring to correct the screen’s distortion.
  (This also brings the edges of the screen into focus.)
4. Use the focus lever to adjust the screen’s overall focus.
  * If the focus at the center of the screen is off, turn the distortion 
ring  a  little  counterclockwise.  The  focus  at  the  center  of  the 
screen can now be adjusted with the focus lever.
Distortion ring
Lens shift dials
Focus lever 
						

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2. Projecting an Image (Basic Operation)
Adjusting the Tilt Feet
1.  Turn the left and right tilt feet to adjust.
 The tilt feet lengthen and shorten when turned.
 The height of the projected image is adjusted by turning the left 
and right tilt feet.
 If the projected image is tilted, turn one of the tilt feet to adjust 
the image so that it is level.
- If  the  projected  image  is  distorted,  see  “2-6  Correcting  Keystone 
Distortion” (→ page 22).
- The tilt feet can be lengthened by a maximum of 20 mm.
- The tilt feet can be used to tilt the projector by a maximum of 4º.
NOTE:
•	 Do	 not	lengthen	 the	tilt	feet	 any	more	 than	20	mm/0.8".	 Doing	so	will	 make	 the	
tilt	feet’s	 mount	 section	 unstable	 and	could	 cause	 the	tilt	feet	 to	come	 off	the	
projector.
•	 Do	 not	use	 the	tilt	feet	 for	any	 purpose	 other	than	adjusting	 the	projector’s	
projection	angle.
	 Handling	 the	tilt	feet	 improperly,	 such	as	carrying	 the	projector	 by	grasping	 the	tilt	
feet	or	hooking	it	onto	a	wall	using	the	tilt	feet,	could	damage	the	projector.
	
Zoom
Turn	the	zoom	lever	or	zoom	ring	clockwise	and	counterclockwise.
-	 The	separately	sold	NP11FL	lens	does	not	have	a	zoom	ring.
Zoom ring
Up
Tilt foot
Down 
						

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2. Projecting an Image (Basic Operation)
 Correcting Keystone Distortion
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.
1.	 Press	the	GEOMETRIC. 	button	 on	the	 remote	 control	 or	the	 projec-
tor cabinet.
 The Keystone screen will be displayed on the screen.
2. Press  the 	button	 to	select	 [VERTICAL]	 and	then	 use	the	  or  
so that the left and right sides of the projected image are parallel.
* Adjust the vertical keystone distortion.
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.
4.  Press the 	button	 to	select	 [HORIZONTAL]	 and	then	 use	the	 or 
 so that the top and bottom sides of the projected image are par-
allel.
•	 Adjust	the	horizontal	keystone	distortion.
Screen frameProjected area
Align left side 
						

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2. Projecting an Image (Basic Operation)
NOTE:
•	 If	the	projection	angle	is	the	same	as	in	the	last	use,	the	previous	correction	setting	values	are	retained	in	the	memory.
•	 When	doing	Step	2,	adjust	the	position	of	image	so	that	the	screen	is	smaller	than	the	area	of	the	projected	area.
•	 To	reset	the	3D	Reform	correction	setting	values,	press	and	hold	the	GEOMETRIC.	button	for	a	minimum	of	2	seconds.
•	 Each	time	the	GEOMETRIC.	 button	is	pressed,	 the	item	 will	change	 as	follows:	 KEYSTONE	→	CORNERSTONE	→	None	→	KEY-
STONE	→	...
For	information	on	[CORNERSTONE],	see	“Correcting	Horizontal	and	Vertical	Keystone	Distortion	(Cornerstone)”	on	page	32.
•	 The	 Cornerstone	 adjustment	will	not	be	available	 during	the	Keystone	 adjustment.	 To	perform	 the	Cornerstone	 adjustment,	press	
and	hold	 the	GEOMETRIC.	 button	for	a	minimum	 of	2	seconds	 to	reset	 the	Keystone	 correction	 setting	values.	 The	Keystone	
adjustment	 will	not	be	available	 during	the	Cornerstone	 adjustment.	To	perform	 the	Keystone	 adjustment,	 press	and	hold	 the	
GEOMETRIC.	button	for	a	minimum	of	2	seconds	to	reset	the	Cornerstone	correction	setting	values.
•	 The	3D	Reform	feature	can	cause	an	image	to	be	slightly	blurred	because	the	correction	is	made	electronically.
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	GEOMETRIC. 	but-
ton to display the Keystone screen and repeat above steps 1 to 6. 
						

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2. Projecting an Image (Basic Operation)
 Optimizing Computer Signal Automatically
Adjusting the Image Using Auto Adjust
Optimizing	a	computer	image	automatically.	(COMPUTER1/COMPUTER2/COMPUTER3)
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	94,	95)
 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	 or	NET-
WORK	is	used.
Increase volume
Decrease volume 
						

							25
2. Projecting an Image (Basic Operation)
 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  [POWER  OFF  /  ARE YOU  SURE  ?  /  CARBON  SAV-
INGS- SESSION 0.000[g-CO2]] message will appear.
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 lightPress twice
 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.
•	 Wait	 at	least	 20	minutes	 after	the	power	 is	turned	 on	(after	 starting	 to	project)	 before	turning	 the	AC	power	 off	while	 an	image	 is	
being	projected	or	while	the	cooling	fan	is	running.
•	 Do	not	unplug	 the	power	 cord	from	 the	projector	 or	from	 the	power	 outlet	while	an	image	 is	being	 projected.	 Doing	so	could	
deteriorate	 the	projector’s	 AC	input	 connector	 or	the	 power	 plug’s	contact.	 To	turn	 off	the	 AC	power	 while	an	image	 is	being	
projected,	use	the	power	strip’s	switch,	the	breaker,	etc.
•	 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. 
						

							26
2. Projecting an Image (Basic Operation)
 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.  Mount the lens cap on the lens.
4. Before moving the projector, screw in the tilt feet if they have been lengthened. 
						

							27
1 Turning off the Image and Sound
Press	the	AV-MUTE	 button	to	turn	 off	the	 image,	 sound,	 beep	sound	 for	
a	short	period	of	time. 	Press	again	to	restore	the	image	and	sound.
The	projector’s	 power-saving	 function	will	work	 10	seconds	 after	the	image 	
is	turned	off. 	As	a	result,	the	lamp	power	will	be	reduced.
NOTE:
•	 To	restore	 the	image,	 even	if	you	 press	 the	AV-MUTE	 button	immediately	 after	
the	start	 of	the	 power-saving	 function,	the	lamp	 brightness	 may	not	be	restored	
to	its	original	level.
 Freezing a Picture
Press	 the	FREEZE	 button	to	freeze	 a	picture. 	Press	 again	to	resume	
motion.
NOTE:	The	image	is	frozen	but	the	original	video	is	still	playing	back.
 Enlarging a Picture
You	can	enlarge	the	picture	up	to	four	times.
NOTE:	 The	maximum	 magnification	 may	be	less	 than	 four	times	 depending	 on	
the	signal.
To	do	so:
1.	 Press	the	D-ZOOM	(+)	button	to	magnify	the	picture.
3. Convenient Features 
						

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3. Convenient Features
 Changing Eco Mode/Checking Energy-Saving Effect Using Eco 
Mode [ECO MODE]
This	feature	enables	you	to	select	two	brightness	modes	of	the	lamp:
OFF	and	ON	modes.	The	lamp	life	can	be	extended	by	turning	on	the	[ECO	MODE].
[ECO	MODE]	Description
[OFF]This	is	the	default	setting	(100%	Brightness).
[ON]Low	lamp	power	consumption	(approx. 	80%	Brightness).
To	turn	on	the	[ECO	MODE],	do	the	following: 	
1.	 Press	the	ECO	button	on	the	remote	control	to	display	[ECO	MODE]	screen.
2. Use the  or 	button	to	select	[ON].
3.  Press the ENTER button. 
  To change from [ON] to [OFF], Go back to Step 2 and select [OFF]. Repeat Step 3.
NOTE:	
•	 The	[ECO	MODE]	can	be	changed	by	using	the	menu.
	 Select	[SETUP]	→	[BASIC]	→	[ECO	MODE].
•	 The	lamp	life	remaining	and	lamp	hours	used	can	be	checked	in	[USAGE	TIME].	Select	[INFO.]	→[USAGE	TIME].
•	 [ECO	 MODE]	is	always	 set	to	[OFF]	 for	1	minute	 immediately	 after	the	lamp	 is	turned	 on.	The	 lamp	 condition	 will	not	be	affected	
even	when	[ECO	MODE]	is	changed.
•	 After	 a	lapse	 of	1	minute	 from	when	 the	projector	 displays	a	blue,	 black	 or	logo	 screen,	 [ECO	MODE]	 will	automatically	 switch	to	
[ON].	
•	 If	the	projector	 is	overheated	 in	[OFF]	 mode,	 there	may	be	a	case	 where	 the	[ECO	 MODE]	 automatically	 changes	to	[ON]	 mode	
to	protect	 the	projector.	 This	is	called	 “Forced	 ECO	Mode”.	 When	the	projector	 is	in	 the	 Forced	 Eco	Mode,	 the	picture	 brightness	
decreases	 slightly	and	the	TEMP.	 indicator	 lights	orange.	 At	the	 same	 time	the	Thermometer	 symbol	[		]	is	 displayed	 at	the	
bottom	right	of	the	screen.
	 When	 the	projector	 comes	back	to	normal	 temperature,	 the	Forced	 Eco	Mode	 is	cancelled	 and	the	[ECO	 MODE]	 returns	to	[OFF]	
mode.
2. Press the  button.
  The area of the magnified image will be moved
3.	 Press	the	D-ZOOM	(−)	button.
 Each time the D-ZOOM (−) button is pressed, the image is reduced.
NOTE:	
•	 The	image	will	be	enlarged	or	reduced	at	the	center	of	the	screen.
•	 Displaying	the	menu	will	cancel	the	current	magnification.