Samsung NP-P430C User Manual

							131
Q
  
The LCD screen is too dark or too bright.
A

  Turn	the	LCD	backlight	on	or	adjust	the	LCD	
brightness.
	

Press	 Fn +
 		to	turn	the	LCD	backlight	on	or	
press	 Fn +
 		or	Fn  +		to	adjust	the	LCD	
brightness.
Q
  The screensaver is activated while Media Player 
is playing a movie or video clip.
A

  Unselect	 Library > More Options > Player > Allow 
screen saver during playback 	
 in	the	Media	Player.
Q
 In the following cases, the screen blinks or there 
is noise for a short time.
	 Click the Graphics Related tab, Change 
Resolution, Change Display Device, Remove the 
AC Adapter, Restart the System, Change Power 
Scheme.
A

  This	may	happen	while	the	video	driver	is	examining	
the	connected	device.	While	the	detection	process	
is	busy,	any	connected	display	devices	may	blink	or	
some	noise	may	occur.
Q
 When I connect a projector, and change the 
settings to display the screen image on both the 
LCD and the projector by pressing the Fn+ 
, 
the screen is not displayed properly.
A

  Press	the	 Fn +
 		keys	again.
	 If	the	problem	continues	even	after	pressing	the	key	 combination,	this	is	because	the	current	resolution	is	
too	high	and	is	not	supported	by	the	projector.	In	this	
case,	change	the	resolution	to	10 4x7 8	pixels.
Q
 When I connect a projector, the taskbar at the 
bottom of the screen is not displayed on the 
projector.
A

  This	occurs	because	a	WXGA	LCD	supports	a	
resolution	of	1 80×800	pixels	but	the	resolution	is	
not	supported	by	the	projector.	In	this	case,	change	
the	resolution	to	10 4x7 8	pixels	(recommended).
Q
 The shortcut icons are not displayed on the 
screen even if I press the shortcut key.
A

  The	shortcut	icons	only	appear	when	the	Easy	
Display	Manager	program	is	installed.
Display Related 
						

							13
Q
 I have connected a monitor (or projector) to the 
computer, but the colors on the monitor are 
abnormally displayed.
A

  Check	if	the	monitor	and	computer	are	properly	
connected	with	the	signal	cable	and	reconnect	the	
cable	if	necessary.
Q
 I am trying to view the screen through a TV by 
connecting it through the HDMI port, but the 
edge of the screen is not displayed.
A

  It	is	recommended	using	a	notebook	computer	
screen	or	monitor	for	documents	and	Internet	pages.	
	 Although	HDMI	is	good	for	watching	videos,	the	 edges	may	be	cut	or	the	text	may	be	blurred	on	a	
HDMI	TV.
Q
 I cannot configure the Image Sharpness in the 
NVIDIA Control Panel of [NVIDIA Graphics].
A

  The	 NVIDIA Control Panel >Adjust desktop Color 
Settings > Image Sharpening	
 item	is	set	to	None 
and will not be configurable. This is normal. 
	

This	function	is	only	available	for	old	graphic	
chipsets.
Q
  How can I configure the sound for video or audio 
chatting?
A

  Configuring the Realtek HD Audio Manager
z	 Select	 Control Panel > Realtek HD Audio 
Manager .
x	 Select	the	Mic 	tab.
c	 Select	the	Noise	Suppression	and	the	Acoustic	Echo	
Cancellation	items	and	click	the	 OK	
button.
	 When	using	the	Acoustic	Echo	Cancellation	option,	 select	the	 Play Device > Speaker > Level 	
 tab	and	
set	the	Microphone	to	Mute.
Q
  I cannot hear my voice with the internal 
microphone.
A

  This	is	because	the	sound	from	the	internal	
microphone	is	removed	so	that	the	sound	is	not	
delivered	to	the	speaker	and	causes	feedback	from	
the	internal	microphone.	However,	you	can	record	
the	sound	from	the	microphone	normally.
	 When	using	an	external	microphone,	select	the	 Play 
Device > Speaker > Level	
 tab	and	deselect	Mute	
for	the	Microphone.	Then	you	can	listen	to	the	sound	
from	the	external	
microphone	through	the	speakers.
Sound Related 
						

							133
Q
 Sound is recorded abnormally when I select the 
Acoustic Echo Cancellation option, connect an 
external microphone, select the Play Device > 
Speaker > Level tab and then deselect Mute for 
the Microphone.
A

  This	occurs	because	the	algorithm	used	to	remove	
the	echo	sound	regards	some	of	the	sound	as	an	
echo	and	removes	this,	as	the	recording	is	done	by	
playing	the	sound	from	the	external	microphone.	
	 After	selecting	the	Acoustic	Echo	Cancellation	 option,	please	select	the	 Play Device > Speaker > 
Level t
ab	and	select	Mute	for	the	Microphone	for	a	
normal	recording.
Q
   
I cannot hear the modem
A1

  Check	if	the	phone	line	is	properly	connected	to	the	
modem.
A2

  Check	if	the	modem	driver	is	properly	installed.
z  ► For Windows 7		
Cl
ick	 Start > Control Panel > System and 
security > System > Device Manger 
a

nd	then	check	if	the	modem	is	not	marked	with	
a	yellow	exclamation	mark.	If	it	is	marked	with	an	
exclamation	 mark,	it	means	 that	the	modem	 driver	
is	not	properly	installed.	In	this	case,	remove	the	
installed	driver	and	install	the	driver	again.
► For Windows Vista
Cl

ick	 Start > Control Panel > System and 
Maintenance > System > Device Manager
a

nd	then	check	if	the	modem	is	not	marked	with	
a	yellow	exclamation	mark.	If	it	is	marked	with	an	
exclamation	mark,	it	means	that	the	modem	driver	
is	not	properly	installed.	In	
this	case,	remove	the	
installed	driver	and	install	the	driver	again.
x	 	 If	the	modem	is	not	marked	with	a	yellow	
exclamation	mark,	double-click	the	installed	
modem	and	click	Diagnostics tab > Query 
Modem 	
 in	the	Modem	Properties	window.	If	
there	is	no	reaction	to	the	command,	it	means	the	
modem	is	out	or	order.
In	this	case,	restart	the	system	or	reinstall	the	
modem	driver	and	then	diagnose	the	modem	
again.
(

Close	all	applications	using	the	modem	before	
diagnosing	the	modem.)
Modem Related 
						

							134
Q
 When you are unable to make a call when using 
a switchboard
A	
In	general,	the	dial	tone	of	a	switchboard	or	a	digital	 phone	switching	system	is	not	continuous	unlike	
that	of	a	PSTN	line.	Therefore,	the	modem	may	not	
make	a	call	because	it	may	recognize	the	dial	tone	
as	a	busy	signal.	In	this	case,	perform	either	of	the	
following:
 Using AT command A
dd	ATX3	command	for	initialization.
Alternatively, enter ATX3 command first before make 
a
 	phone	call.
The	modem	will	not	check	the	dial	tone	before	
making	a	phone	call.
 Configuring the Modem in the Control Panel
  ►  For Windows 7  	
Click
		Start	
 and	type	"Phone"	in	the	search	Box.
► For Windows Vista	
Click

	 Start > Control Panel > Hardware and 
Sound .
	 Click	on	Phone and 	Modem Options.
	 In	the	Modem	 tab,	select	an	installed	modem	
and	click	 Properties.
 ►  For Windows 7  	
In
	the	 Modem	
 tab	of	the	Modem	Properties	
window

,	uncheck	"wait for dial tone before 
dialing "
 	option.
► For Windows Vista	
In

	the	Modem	
 tab	of	the	Modem	Properties	
window,	unselect	the	Make a phone call after 
waiting for a dial tone 	
 option.
	 When	the	settings	are	complete,	click	the	OK	
button.
If

	you	cannot	make	a	phone	call	starting	with	
a	0,	such	as	0143 ,	014 1,	01433,	etc.,	this	is	
because	the	private	switching	system	is	set	to	block	
long	distance	calls.	Ask	your	switching	system	
administrator. 
						

							135
Q
  
When using the modem overseas
A

1  Check	if	the	country	setting	of	the	modem	is	set	to	
the	current	country.	 	
S

ince	each	country	has	slightly	different	
telecommunication	values,	if	the	location	is	not	set	
to	the	corresponding	country,	the	modem	may	fail	to	
make	a	phone	call.
  ►  For Windows 7  	
Click
	Start	
 and	type	"Phone"	in	the	search	Box.
► For Windows Vista	
Click

	 Start > Control Panel > Hardware and 
Sound .
	 Click	on	Phone and Modem Options .
	 In	the	Dialing Rules 	 tab,	click	Edit.
	 In	the	General	 tab	of	the	Edit	Location	window,	
set	the	Country/Region	to	your	current	country,	
enter	the	region	code	and	then	click	the	 OK	
button.
A2	
Since	the	shape	of	the	phone	line	connector	may	 differ	depending	on	the	country	you	are	 in,	you	may	
have	to	buy	a	phone	line	connector	to	make	a	phone	
call	from	that	country.
Q
  How can I receive a FAX in Sleep mode (Standby 
Mode)?
A

  To	receive	a	FA X	when	the	computer	is	in	Sleep	
Mode	(Standby	Mode),	the	computer	must	be	
configured as follows:
P

lease	refer	to	the	FA X	program	manual	and	
configure the FA X program to receive FA X 
automatically.
  ►  For Windows 7  	
Click
	Start	
 and	type	"Phone"	in	the	search	Box.
► For Windows Vista	
Click

	 Start > Control Panel > Hardware and 
Sound .
	 Click	on	Phone and Modem Options .
	 In	the	Modem	 tab,	select	an	installed	modem	
and	click	Properties.
 ► For Windows 7  	
In
	the	 Power Management	
 tab	of	the	Modem	
Properties	window,	select	the	Allow this device 
to wake the computer	
 option	and	click	the	OK	
button.
► For Windows Vista	
In

	the	Power Management	
 tab	of	the	Modem	
Properties	window,	select	the	Wake up the 
computer with this device 	
 option	and	click	the	
OK	
 button.
(If the Power Management tab does not 
appear, select Change Settings in the 
General tab.)
When the modem is configured as above, and a FA X 
a
 rrives,	the	computer	wakes	up	from	Sleep	Mode	
and	receives	the	FA X. 
						

							13
Q
  
The  function
A

  	is	a	function	that	activates	the	
system	from	Sleep	mode	when	a	signal	(such	as	
a	ping	or	magic	packet	command)	arrives	over	the	
network	(wired	LAN).
		 Using the  Function
z ► For Windows 7
	 	 	 Click	Start > Control Panel > Network and 
Internet > Network and Sharing Center 	
 and	
click	on	Change adapter settings 	
in	the	left	
menu	pane.
	 ► For Windows Vista
	

	 	 Click	 Start > Control Panel > Network and 
Internet > Network and Sharing Center 	
 and	
click	Manage Network Connections 	
in	the	left	
pane.
x Right-click	on	the	Local	Area	Connection	and	select	
Properties.
c Click	 Configure 	> Power Management 	tab.	Select	
Allow this device to bring the computer out of 
standby ,
 	then	click	OK .	Restart	the	system.
		— If	the	system	wake	up	from	Sleep	mode	even	though	
there	is	no	received	signal,	use	the	system	after	
disabling	the		
function.
		— The	LAN	LED	may	not	be	turned	off	if	System	is	
shutdown	without	disabling	the	WOL	(Wake	on	LAN)	
option.
		—  Connecting	a	wired	LAN	while	using	a	wireless	LAN	
may	not	activate	the		function.	Set	
the	Wireless	LAN	to	 Disable	
 to	use	the		function.
For	Windows	7,	Wake	On	LAN	is	not	supported	Ping.
Q
  When I am connected to a 100Mbps/1Gbps wired 
LAN and the computer exits Sleep/hibernation 
mode, a message appears informing you of a 
connection to a 10Mbps/100Mbps wired LAN. 
A

  When	the	computer	exits	standby/hibernate	mode,	
restoring	the	network	takes	about	3	seconds.
	 When	the	network	is	restored,	it	operates	at	 100Mbps/1Gbps.
Wired Network (LAN) Related 
						

							137
Q
 The Home Group function  
(for the Windows 7 operating system only)
A	 Home Group 	
 is	a	function	that	enables	connecting	
all	the	computers	at	home	allowing	users	to	access	
the	data	on	all	computers	as	if	accessing	the	data	on	
the	local	computer.
  If you set the first computer to use a  Home Group	
as

	a	Home Network ,
	you	can	create	a	 Home 
Group .
 	A	second	(and	more)	computer	can	
participate	in	the	created	 Home Group.
 	A	password	
is required for participation and you can confirm the 
password on the first computer.
	

This	function	is	only	available	between	computers	
that	have	the	 Windows 7	
operating	system	installed.	
If	an	older	operating	system	that	Windows	7	is	
installed	on	a	computer,	the	computer	cannot	create	
or	participate	in	a	 Home Group.
 	
	 In	addition,	using	the	 Home Group	
 function	is	
restricted	in	the	 Windows 7 Starter 	
 version	
because	of	the	operating	system	properties. 
						

							138
Q
  
I cannot find an AP.
A

  Verify	whether	the	Wireless	LAN	LED	is	on.
	 If	it	is	turned	off,	turn	it	on	by	pressing	the	Wireless	 LAN	On/Off	button	( Fn	
 +	).
Q
 The Wireless LAN device is operating properly, 
but I cannot connect to the Internet or to another 
computer.
  This is due to an incorrect configuration, or a 
configuration error. Check the following:
A

1  When	connecting	to	a	wireless	Ad-Hoc	network,	
check	if	the	network	name	(SSID)	is	the	same.
A2  If	a	network	key	(encryption	key)	is	used,	the	AP	
(Access	Point)	and	wireless	Ad-Hoc	network	keys	
must	be	the	same.
  The AP network key can be configured using 
an	AP	management	program.	For	more	detailed	
information,	ask	your	network	administrator	or	
product	provider.
A3  Check	that	the	device	driver	is	installed	properly.	
If the driver is not properly installed, you will find 
a

	yellow	exclamation	mark	on	the	network	icon	by	
clicking	Device Manager > Network Adapter .
Q
 The signal strength is excellent, but I cannot 
connect to the network.
  Even if the signal strength is excellent, the 
network connection may not operate properly 
if the TCP/IP properties are not properly 
configured, or the network key (encryption key) 
is incorrect.
A  C
heck that the TCP/IP properties are configured 
properly.	When	connecting	to	an	AP,	right-click	the	
Network Connections	
	icon	on	the	taskbar	and	
select	Network and Sharing Center .
	If	you	click	the	
View Status 	
 next	to	a	connected	wireless	network	
device	and	then	click	the	 Detail	
 button,	you	can	view	
the	IP	information.	If	the	IP	is	not	allocated	properly,	
the	IP	address	will	be	displayed	as	follows	(e.g.	
1  9. 54.xxx.xxx).
	 If	the	network	does	not	provide	DHCP,	you	have	 to	specify	the	correct	IP	address	by	asking	your	
network	administrator.
	 Even	if	the	network	provides	DHCP,	the	server	may	 not	allocate	an	IP	address	to	the	client	properly,	and	
the	client	station	cannot	connect	to	the	network.
Wireless Network (WLAN) Related 
						

							139
Q
  
I cannot connect to the AP.
  C
heck the Computer Settings
A1 Select	 Start >
 	All Programs > 	Accessories	>	
Windows Mobile Center 	
 and	check	the	wireless	
device	status.
	
  When it is represented as Disconnected  	
T
his	means	the	computer	is	not	connected	to	the	
AP.	Check	the	status	of	the	AP,	referring	to	the	
descriptions	of	the	Checking the SP Settings 
section below. Check the encryption key configured 
i
 n	the	AP	and	retry	to	the	connection.
	
  When it is represented as Connected, but you 
cannot connect to the Internet 	
T

his	means	the	computer	is	connected	to	the	AP,	but	
the	AP	or	external	network	connected	with	the	AP	
may	have	a	problem.
	
  When the ‘There is no wireless LAN adapter’ 
message appears or there is no wireless LAN 
icon 	
T

his	means	the	wireless	LAN	device	is	set	to	 Do Not 
Use	
 or	the	device	is	not	recognized.	 	
C
heck	if	the	wireless	device	is	properly	recognized	
in	the	Device	Manager	window.	
If	the	device	is	set	
to	Do Not Use ,
	right-click	and	select	Use	from	the	
pop-up	menu.
A2  Verify	whether	the	same	network	key	(encryption	
key)	has	been	entered	for	both	the	AP	and	the	
computer.	The	network	key	is	an	encryption	key	for	
encrypting	the	data	transmitted	between	the	AP	and	
the	computer.	It	is	recommended	setting	the	network	
key	manually.  
C
heck the AP Settings
	 For	the	AP	settings,	refer	to	the	User	Guide	provided	
by	the	AP	manufacturer.
A3  Verify	whether	the	environment	is	suitable	for	using	
a	wireless	LAN.	The	use	of	a	wireless	LAN	may	
be	restricted	according	to	the	environment	and	
distance.	Obstacles	
such	as	walls	or	doors	affect	the	
use	of	a	wireless	LAN.	Install	the	AP	in	a	high	and	
open	space,	50cm	from	the	wall	and	far	removed	
from	any	other	radio	signal	sources.
A4  Verify	whether	the	AP	is	operating	properly.
		
When	the	AP	is	not	operating	normally,	turn	off	the	 AP,	wait	a	short	while,	and	turn	it	on	again.
	  V
erify whether the AP’s firmware is the most recent 
version.	(Contact	the	AP	manufacturer	or	the	place	
where	you	purchased	the	AP	for	details	of	the	AP	
firmware.)
A

5  Verify	whether	the	AP	has	been	properly	connected	
to	the	network.	Verify	whether	the	network	is	
operating	normally	by	
connecting	the	wired	network	
cable,	which	has	been	connected	to	the	AP,	to	your	
computer.
A

6  Check	the	network	key	settings	(encryption	
key)	again.	When	automatic	code	conversion	(a	
passphrase	function)	has	been	selected	and	data	
communication	is	not	functioning	even	with	a	normal	
wireless	connection,	it	is	recommended	entering	the	
network	key	(encryption	key)	manually.
A7  Check	the	AP	settings	as	follows.	(The	following	is	
recommended	for	a	standard	environment	and	thus	
may differ according to the specific wireless network 
environment.) 
						

							140
		When	several	APs	are	present	simultaneously,	check	the	channel	settings	for	each	AP.	When	
different	APs	are	using	nearby	channels,	
interference	may	occur	between	the	electronic	
waves.	Set	the	AP	channels	further	apart	from	each	
other.	(Ex:	Ch1,	Ch5,	Ch9,	Ch13)
		 When
 	an	AP’s	SSID	(Service	Set	ID)	option	is	set	
to	“Hide”,	you	cannot	search	for	that	 AP	on	the	
computer.	We	recommend	unselecting	the	“Hide”	
option	for	the	 AP.	The	SSID	is	a	name	used	for	
distinguishing	one	wireless	LAN	from	another	
wireless	LAN.
		 It
 	is	recommended	using	Long	Preamble.	Preamble	
is	a	signal	for	data	transmission	synchronization. 	
Short	Preamble	may	be	supported	by	some	types	of	
APs	but	may	cause	compatibility	problems.
		 It
 	is	recommended	using	a	static	IP.
		 Since
 	static	channel	selection	is	more	reliable	than	
auto	channel	selection,	it	is	recommended	using	a	
static	channel.
Q
  I cannot connect to a computer connected to the 
Ad-Hoc network.
A

1  Check	the	security	settings	and	network	name	of	the	
wireless	Ad-Hoc	network.
A2  Check	the	TCP/IP	settings	of	the	computers	
connected	to	the	wireless	Ad-Hoc	network.	The	IP	
addresses	of	the	computers	to	be	connected	to	a	
wireless	Ad-Hoc	network	must	be	set	to	the	same	
sub-network	address.
	  F
or example, if the TCP/IP setting is configured to a 
fixed IP address, select Use the following IP address 
i
n	the	TCP/IP	Properties	of	the	wireless	adapter,	
configure the items as follows and try again.
	

IP:	10.0.0.1~10.0.0. 54,	Subnet	Mask:	
 55. 55. 55.0.
  It is recommended using a fixed IP address for 
wireless	Ad-Hoc	network	connections.
A3  You	have	to	register	the	IP	address	allocated	for	
the	wireless	adapter	as	a	‘Trusted	IP’	in	McAfee	
SecurityCenter.
		
Click	 McAfee SecurityCenter > Advanced menu 
> Configure > Internet and Network > Advanced 
> Trusted and Banned IPs ,
 	and	register	the	
IP	address	or	IP	address	range 	as	a	Trusted	IP	
address.