NEC Projector Px750u User Manual

							17
2. Projecting an Image (Basic Operation)
2.	 Press	the		(POWER)	 button	on	the	 projector	 cabinet	
or	the	POWER	ON	button	on	the	remote	control. 	
 The  POWER  indicator  will  turn  to  blue  and  the  projector 
will become ready to use.
TIP:	
•	 When	 the	message	 “PROJECTOR	 IS	LOCKED!	 ENTER	YOUR	
PASSWORD.” 	is 	displayed, 	it 	means 	that 	the 	[SECURITY]	
feature	is	turned	on.	(→ page 42)
•	 When	 the	ECO	 message 	is	 displayed, 	it	 means 	that	 [ON]	 is	
selected	for	[ECO	MESSAGE].	(→ page 114)
 After you turn on your projector, ensure that the computer 
or video source is turned on.
NOTE:	 A	blue	 screen	 (blue	background)	 is	displayed	 when	no	signal	
is	being	input	(by	factory	default	menu	settings).
 
StandbyBlinkingPower	On
Steady orange 
light Blinking blue 
light Steady blue 
light
(→	page	220) 
						

							18
2. Projecting an Image (Basic Operation)
Note on Startup screen (Menu Language Select screen)
When	you	first	 turn	 on	the	 projector,	 you	will	get	 the	Startup	 menu.	This	 menu	 gives	you	the	opportunity	 to	select	 one	
of	the	27	menu	languages.
To	select	a	menu	language, 	follow	these	steps:
1.	 Use	the	, ,   or 	button	 to	select	 one	of	the	 27	lan-
guages	from	the	menu.
2.	 Press	the	ENTER	button	to	execute	the	selection.
After	 this	has	 been	 done,	 you	can	 proceed	 to	the	 menu	 opera-
tion.
If	you	want,	you	can	select	the	menu	language	later.
(→	[LANGUAGE]	on	page	95	and	113)
NOTE: 
•	 Turning	 the	power	 back	on	directly	 after	it	is	 turned	 off	(by	 direct	 power	 off)	while	 an	image	 is	being	 projected	 can	result	 in	
malfunction. Be sure to wait at least 1 second before turning the power \
back on.
•	 Keep	the	lens	cap	off	the	lens	while	the	projector’s	power	is	on.
 If the lens cap is on, it could be warped due to high temperature.
•	 If	one	of	the	following	things	happens,	the	projector	will	not	turn	on.
- If the internal temperature of the projector is too high, the projector detects abnormal high temperature. In this condition the 
projector	 will	not	turn	 on	to	protect	 the	internal	 system.	 If	this	 happens,	 wait	for	the	 projector’s	 internal	components	 to	cool	
down.
-	 Starting	under	low	temperature	conditions
	 If	 the	usage	 environment	 temperature	is	lower	 than	the	projector’s	 operating	temperature,	 the	TEMP.	 indicator	 will	flash.	 Increase 	
the	usage	environment	temperature	to	0°C	or	higher	and	turn	on	the	projector	again.
	 If	you	turn	on	the	projector	at	around	0°C,	it	may	take	5	minutes	to	warm	up	the	projector.
	 During	warm-up,	the	TEMP.	indicator	will	flash.	When	the	warm-up	is	completed,	the	TEMP.	indicator	will	light	out.
-	 When	the	lamp	reaches	its	end	of	usable	life,	the	projector	will	not	turn 	on.	If	this	happens,	replace	the	lamp.
-	 If	the	STATUS	 indicator	 lights	orange	 with	the	power	 button	 pressed,	 it	means	 that	the	[CONTROL	 PANEL	LOCK]	is	turned	 on.	
Cancel	the	lock	by	turning	it	off.	(→ page 119)
-	 If	the	lamp	 fails	to	light,	 and	if	the	 LAMP	 1	or	 LAMP	 2	indicator	 flashes	on	and	 off	in	a	cycle	 of	six	 times,	 wait	a	full	 minute	 and	
then turn on the power.
•	 While	the	POWER	indicator	is	blinking	blue	in	short	cycles,	the	power	cannot	be	turned	off	by	using	the	power	button.
•	 Immediately	 after	turning	 on	the	 projector,	 screen	flicker	may	occur.	 This	is	normal.	 Wait	3	to	 5	minutes	 until	the	lamp	 lighting	 is	
stabilized.
•	 When	the	projector	is	turned	on,	it	may	take	some	time	before	the	lamp	light	becomes	bright.
•	 If	you	turn	 on	the	 projector	 immediately	 after	the	lamp	 is	turned	 off	or	when	 the	temperature	 is	high,	 the	fans	 run	without	 display-
ing an image for some time and then the projector will display the image\
.
  
						

							19
2. Projecting an Image (Basic Operation)
If the projected image is inverted or upside down
1	 Press	the	ORIENTATION	button.	
	 The	[ORIENTATION]	screen	will	be	displayed.
2	 Press	again	to	select	a	correct	orientation.
	 Each	time	 the	ORIENTATION 	button 	is 	pressed,	 the	choice	 you	highlight 	
will be changed.
 
DESKTOP FRONTDESKTOP REAR
CEILING	FRONTCEILING	REAR
3	 Stop	pressing	the	ORIENTATION	button.
 The menu will be closed and the projected image will be displayed in 
the correct orientation you select. 
						

							20
2. Projecting an Image (Basic Operation)
 Selecting a Source
Selecting the computer or video source
NOTE:	Turn	on	the	computer	or	video	source	equipment	connected	to	the	projector.
Detecting the Signal Automatically
Press	the 	SOURCE 	button 	once. 	The 	projector 	will 	search 	for 	the 	available	
input	source	and	display	it. 	The	input	source	will	change	as	follows: 	
COMPUTER1	→	COMPUTER2	→	COMPUTER3	→	HDMI	→	DisplayPort 	
→	VIDEO	→	S-VIDEO	→	VIEWER	→	SLOT	→	COMPUTER1	→ ...
•	 With	 the	SOURCE	 screen	displayed,	 you	can	 press	 the	SOURCE	
button	a	few	times	to	select	the	input	source.
TIP:	If	no	input	signal	is	present,	the	input	will	be	skipped.
Using the Remote Control
Press	 any	one	 of	the	 COMPUTER1,	 COMPUTER2,	COMPUTER3,	HDMI,	
DisplayPort,	 VIDEO,	S-VIDEO,	 VIEWER,	or	NETWORK	buttons.
Selecting Default Source 
You	can	set	a	source	 as	the	 default	 source	 so	that	 it	will	 be	displayed	
each	time	the	projector	is	turned	on.
1.	 Press	the	MENU	button.
 The menu will be displayed.
2.	 Press	 the		button	 twice	to	select	 [SETUP]	 and	press	 the		but-
ton	or	the	ENTER	button	to	select	[BASIC].
3.  Press	the		button	five	times	to	select	[OPTIONS(2)].
4.	 Press 	the 		button	 five	times	 to	select	 [DEFAULT	 SOURCE	
SELECT]	and	press	the	ENTER	button.
 The [DEFAULT SOURCE SELECT] screen will be displayed.
 (→ page 124)
5.	 Select	 a	source	 as	the	 default	 source,	and	 press	 the	ENTER	 but-
ton.
6.	 Press	the	EXIT	button	a	few	times	to	close	the	menu.
7.	 Restart	the	projector.
  The source you selected in step 5 will be projected.
NOTE:	 Even	when	 [AUTO]	 is	turned	 on,	the	[NETWORK]	 will	not	be	automatically	
selected.	To	set	your	network	as	the	default	source,	select	[NETWORK].
TIP:	
•	 When	 the	projector	 is	in	 Standby	 mode,	applying	 a	computer	 signal	from	a	
computer	 connected	 to	the	 COMPUTER	 1/3	IN	input	 will	power	 on	the	 projector	
and	simultaneously	project	the	computer’s	image.
	 ([AUTO	POWER	ON(COMP1/3)]	→ page 124)
•	 On	 the	Windows	 7	keyboard,	 a	combination	 of	the	 Windows	 and	P	keys	 allows	
you to set up external display easily and quickly. 
						

							21
2. Projecting an Image (Basic Operation)
 Adjusting the Picture Size and Position
Use	the	lens	 shift	dial,	the	adjustable	 tilt	foot	 lever,	 the	zoom	 buttons	 and	the	focus	 buttons	 to	adjust	 the	picture	 size	
and	position.
In	this	chapter	drawings	and	cables	are	omitted	for	clarity.
Adjusting	 the	projected	 image’s	vertical	and	horizontal	
position
[Lens	shift]
Adjusting	the	focus
[Focus]
(→ page 22) (→ page 24)
Finely	adjusting	the	size	of	an	image
[Zoom]
Adjusting	the 	projected 	image’s 	height 	and 	horizontal	
tilt
[Tilt	foot]	*¹
(→ page 25) (→ page 25)
Adjusting	the	keystone	correction
[Keystone]
(→ page 26)
NOTE*1: Adjust	the	projected	 image’s	height	using	the	tilt	feet	 when	 you	want	 to	project	 the	image	 at	a	position	 higher	than	the	
lens shift adjustment range.
TIP:
•	 Built-in	test	patterns	can	be	conveniently	used	for	adjusting	the	picture	 size	and	position.	(→ page 97) 
	 The	lens	shift,	focus	and	zoom	adjustments	are	not	available	with	the	remote	control	when	the	test	pattern	is	displayed. 
						

							22
2. Projecting an Image (Basic Operation)
Adjusting the vertical position of a projected image (Lens shift)
CAUTION•	 Perform	the	adjustment	 from	behind	 or	from	 the	side	 of	the	 projector. 	Adjusting	 from	
the	front	could	expose	your	eyes	to	strong	light	which	could	injure	them.
•	 Keep	hands	away	from	the	lens	 mounting	 portion	while	the	lens	 shift	is	in	 operation. 	
Failure	to	do	so	could	result	in	hands	being	pinched	by	the	moving	lens.
NOTE:
•	 The	lens	shift	function	is	not	available	on	the	projector	with	NP16FL	lens 	installed.	
	 Return	the	lens	shift	position	to	the	home	position	before	installing	the	lens	to	the	projector.
•	 Shifting	the	lens	 to	the	 maximum	 in	two	 directions	 combined	 will	cause	 the	edges	 of	the	 image	 to	become	 dark	or	will	 cause	
some shadows.
Adjusting with buttons on the cabinet
1.	 Press	one	of	the	LENS	SHIFT	▼▲◀▶	buttons.
2.	 Use	the	LENS	SHIFT	▼▲◀▶	buttons	to	move	the	projected	image.
Returning	the	lens	shift	position	to	the	home	position
Press	 and	hold	 the	SHUTTER/HOME	 POSITION	button	for	2	seconds	 to	return	 the	lens	 shift	position	 to	the	 home	
position	(nearly	center	position) 
						

							23
2. Projecting an Image (Basic Operation)
Adjusting with the remote control
1.	 Press	the	LENS	SHIFT	button.
 The Lens Shift screen will be displayed. 
2.	 Press	the	▼▲◀ or ▶	button.
 Use the ▼▲◀▶ buttons to move the projected image.
TIP:	
•	 The	 diagram	 below	shows	 the	lens	 shift	 adjustment	 range	for	the	 desktop	 front.	To	raise	 the	projection	 position	higher	than	this,	
use	the	tilt	feet.	(→ page 25)
•	 For	the	ceiling	mount/front	projection	lens	shift	adjustment	range,	see	page	207.
1V
1H
0.1H 0.1H
0.5VHeight of projected image
Width of projected image
1V 1H
0.1H
0.1H
0.5V
Height of projected image
Width of projected image 
						

							24
2. Projecting an Image (Basic Operation)
Focus
Applicable	lens:	NP16FL/NP17ZL/NP18ZL/NP19ZL/NP20ZL/NP21ZL
Use	the	FOCUS	(+)	or	(−)	button	on	the	projector	cabinet	to	obtain	the	best	focus.
TIP:	To	obtain	the	best	focus,	perform	the	following	(for	fixed	installation)
Preparation:	Warm	up	the	projector	for	one	hour.
1.	Use	the	FOCUS	+/−	buttons	to	make	sure	you	obtain	the	best	focus.	If	you	do	not,	move	the	projector	back	and	forth.
2.	Select	the	[TEST	PATTERN]	from	the	menu	and	display	the	test	pattern.	(→ page 97)
3.	Keep	pressing	the	FOCUS	−	button	until	the	grid	of	the	text	pattern	is	made	invisible.
4.	Keep	pressing	the	FOCUS	+	button	until	you	obtain	the	best	focus.
 If you adjust beyond the best focal point, go back to step 3 and repeat \
the procedures. 
						

							25
2. Projecting an Image (Basic Operation)
Adjusting the Tilt Feet
•		Turn	the 	left 	and 	right 	tilt 	feet 	on 	the 	right, 	left, 	and 	rear 	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 26).
- The tilt feet can be used to tilt +/− 50 mm/1.97" (6.75°), −9 mm/0.35" 
(1.2°).
 CAUTION
The	 rear	 vents	 of	the	 projector	 may	become	 heated	during	normal	
projector	operation.
Use	caution	when	adjusting	the	tilt	foot	on	the	rear	side. 	
NOTE:
•	 Do	not	lengthen	 the	tilt	feet	 on	the	 right	 and	left	any	 more	 than	50	mm/1.97"and	
the	 tilt	foot	 on	the	 rear	 any	more	 than	9	mm/0.35" 	on 	the	 rear.	 The	force	 of	doing	
so may cause the rear foot to come off, resulting in damage to the proje\
ctor.
•	 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 pro\
jector.
 
Zoom
Use	the	ZOOM	(+)	or	(−)	button	on	the	projector	cabinet	to	zoom	in	or	out.
•	 The	zoom	is	not	available	on	the	separately	sold	NP16L	lens.
Up
Tilt foot
Down 
						

							26
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	3D	REFORM	 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