Asus Vh238t User Guide

							  
VH238H Series 
LCD Monitor
User Guide
 
 
						

							ii
Table of contents
Notices ........................................................................\
.................................iii
Safety information ........................................................................\
..............iv
Care & Cleaning ........................................................................\
...................v
1.1 Welcome! ........................................................................\
................vi
1.2  Package contents ........................................................................\
...vi
1.3 Assembling the monitor base .....................................................1-1
1.4 Monitor introduction ....................................................................1-1
1.4.1  Front of the LCD monitor ................................................1-1
1.4.2  Rear of the LCD monitor .................................................1-3
2.1   Detaching the arm/stand 
(for VESA wall mount) .................................................................2-1
2.2  Adjusting the monitor ..................................................................2-2
3.1 OSD (On-Screen Display) menu .................................................3-1
3.1.1	 How	to	reconfigure ..........................................................3-1
3.1.2	 OSD	Function	Introduction ..............................................3-1
3.2	 Specifications	summary ..............................................................3-6
3.3  Troubleshooting (FAQ) ................................................................3-7
3.4 Supported Timing List .................................................................3-8
Copyright © 2012 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in\
 it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated in\
to any language in any form or by any means, except documentation kept by the purchaser for backup purposes, w\
ithout the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT. 
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be \
registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners’ benefit, without intent to infringe.
  
						

							iii
Notices
Federal Communications Commission Statement
This	device	complies	with	Part	15	of	the	FCC	Rules.	Operation	is	subject	
to	the	following	two	conditions:
•	 This	device	may	not	cause	harmful	interference,	and
•	 This	device	must	accept	any	interference	received	including	
interference	that	may	cause	undesired	operation.
This	equipment	has	been	tested	and	found	to	comply	with	the	limits	for	
a	Class	B	digital	device,	pursuant	to	Part	15	of	the	FCC	Rules.	These	
limits	are	designed	to	provide	reasonable	protection	against	harmful	
interference	in	a	residential	installation.	This	equipment	generates,	uses	
and	can	radiate	radio	frequency	energy	and,	if	not	instalLCD	and	used	
in	accordance	with	manufacturer’s	instructions,	may	cause	harmful	
interference	to	radio	communications.	However,	there	is	no	guarantee	that	
interference	will	not	occur	in	a	particular	installation.	If	this	equipment	does	
cause	harmful	interference	to	radio	or	television	reception,	which	can	be	
determined	by	turning	the	equipment	off	and	on,	the	user	is	encouraged	to	
try	to	correct	the	interference	by	one	or	more	of	the	following	measures:
•	 Reorient	or	relocate	the	receiving	antenna.
•	 Increase	the	separation	between	the	equipment	and	receiver.
•	 Connect	the	equipment	to	an	outlet	on	a	circuit	different	from	that	to	
which	the	receiver	is	connected.
•	 Consult	the	dealer	or	an	experienced	radio/TV	technician	for	help.
As	an	Energy	Star® Partner,	our	company	has	
determined	that	this	product	meets	the	Energy	Star® 
guidelines	for	energy	efficiency.
Canadian Department of Communications Statement
This	digital	apparatus	does	not	exceed	the	Class	B	limits	for	radio	
noise	emissions	from	digital	apparatus	set	out	in	the	Radio	Interference	
Regulations	of	the	Canadian	Department	of	Communications.
This	class	B	digital	apparatus	complies	with	Canadian	ICES-003.
  
						

							iv
Safety information
•	 Before	setting	up	the	monitor,	carefully	read	all	the	documentation	that	
came	with	the	package.
•	 To	prevent	fire	or	shock	hazard,	never	expose	the	monitor	to	rain	or	
moisture.
•	 Never	try	to	open	the	monitor	cabinet.	The	dangerous	high	voltages	
inside	the	monitor	may	result	in	serious	physical	injury.
•	 If	the	power	supply	is	broken,	do	not	try	to	fix	it	by	yourself.	Contact	a	
qualified	service	technician	or	your	retailer.
•	 Before	using	the	product,	make	sure	all	cables	are	correctly	connected	
and	the	power	cables	are	not	damaged.	If	you	detect	any	damage,	
contact	your	dealer	immediately.	
•	 Slots	and	openings	on	the	back	or	top	of	the	cabinet	are	provided	for	
ventilation.	Do	not	block	these	slots.	Never	place	this	product	near	or	
over	a	radiator	or	heat	source	unless	proper	ventilation	is	provided.		
•	 The	monitor	should	be	operated	only	from	the	type	of	power	source	
indicated	on	the	label.	If	you	are	not	sure	of	the	type	of	power	supply	to	
your	home,	consult	your	dealer	or	local	power	company.	
•	 Use	the	appropriate	power	plug	which	complies	with	your	local	power	
standard.	
•	 Do	not	overload	power	strips	and	extension	cords.	Overloading	can	
result	in	fire	or	electric	shock.
•	 Avoid	dust,	humidity,	and	temperature	extremes.	Do	not	place	the	
monitor	in	any	area	where	it	may	become	wet.	Place	the	monitor	on	a	
stable	surface.
•	 Unplug	the	unit	during	a	lightning	storm	or	if	it	will	not	be	used	for	a	
long	period	of	time.	This	will	protect	the	monitor	from	damage	due	to	
power	surges.	
•	 Never	push	objects	or	spill	liquid	of	any	kind	into	the	slots	on	the	
monitor	cabinet.
•	 To	ensure	satisfactory	operation,	use	the	monitor	only	with	UL	listed		
computers	which	have	appropriate	configured	receptacles	marked	
between	100-240V	AC.
•	 If	you	encounter	technical	problems	with	the	monitor,	contact	a	
qualified	service	technician	or	your	retailer.
•	 The	socket-outlet	shall	be	installed	near	the	equipment	and	shall	be	
easily	accessible.
  
						

							v
Care & Cleaning
•	 Before	you	lift	or	reposition	your	monitor,	it	is	better	to	disconnect	the	cables	
and	power	cord.	Follow	the	correct	lifting	techniques	when	positioning	the	
monitor.	When	lifting	or	carrying	the	monitor,	grasp	the	edges	of	the	monitor.	
Do	not	lift	the	display	by	the	stand	or	the	cord.
•	 Cleaning.	Turn	your	monitor	off	and	unplug	the	power	cord.	Clean	the	monitor	
surface	with	a	lint-free,	non-abrasive	cloth.	Stubborn	stains	may	be	removed	
with	a	cloth	dampened	with	mild	cleaner.
•	 Avoid	using	a	cleaner	containing	alcohol	or	acetone.	Use	a	cleaner	intended	
for	use	with	the	LCD.	Never	spray	cleaner	directly	on	the	screen,	as	it	may	drip	
inside	the	monitor	and	cause	an	electric	shock.
The following symptoms are normal with the monitor:
•	 The	screen	may	flicker	 during	 the	initial	 use	due	 to	the	 nature	 of	the	 fluorescent	
light.	Turn	off	the	Power	Switch	and	turn	it	on	again	to	make	sure	that	the	
flicker	disappears.
•	 You	may	find	slightly	uneven	brightness	on	the	screen	depending	on	the	
desktop	pattern	you	use.
•	 When	the	same	image	is	displayed	for	hours,	an	afterimage	of	the	previous	
screen	may	remain	after	switching	the	image.	The	screen	will	recover	slowly	or	
you	can	turn	off	the	Power	Switch	for	hours.
•	 When	the	screen	becomes	black	or	flashes,	or	cannot	work	anymore,	contact	
your	dealer	or	service	center	to	fix	it.	Do	not	repair	the	screen	by	yourself!
Conventions used in this guide
WARNING:	Information	to	prevent	injury	to	yourself	when	trying	to	
complete	a	task.
CAUTION:	Information	to	prevent	damage	to	the	components	when	
trying	to	complete	a	task.
IMPORTANT:	Information	that	you	MUST	follow	to	complete	a	task.
NOTE:	Tips	and	additional	information	to	aid	in	completing	a	task.
  
						

							viChapter	1:	Product	Introduction
Where	to	find	more	information
Refer	to	the	following	sources	for	additional	information	and	for	product	and	
software	updates.
1. ASUS websites
The	ASUS	websites	worldwide	provide	updated	information	on	ASUS	
hardware	and	software	products.	Refer	to	http://www.asus.com.
2. Optional documentation
Your	product	package	may	include	optional	documentation	that	may	have	
been	added	by	your	dealer.	These	documents	are	not	part	of	the	standard	
package.
1.1 Welcome!
Thank	you	for	purchasing	the	ASUS®	VH238H	Series	LCD	monitor!
The	latest	widescreen	LCD	monitor	from	ASUS	provides	a	crisper,	broader,	and	
brighter	display,	plus	a	host	of	features	that	enhance	your	viewing	experience.
With	these	features,	you	can	enjoy	the	convenience	and	delightful	visual	
experience	that	the	VH238H	Series	brings	you!
1.2 Package contents
Check	your	VH238H	Series	LCD	package	for	the	following	items:
   LCD monitor
			Monitor	base
			Quick	Start	Guide
			Power	cord
			VGA	cable
			DVI	cable
			Audio	cable
If	any	of	the	above	items	is	damaged	or	missing,	contact	your	retailer	
immediately.
  
						

							1-1ASUS	LCD	Monitor	VH238H	Series
1.3 Assembling the monitor base
To assemble the monitor base:
1. Connect	the	base	with	the	monitor.	A	click	indicates	that	the	base	has	been	
connected	successfully.	
2. Adjust	the	monitor	to	the	angle	that	is	most	comfortable	for	you.		
We	recommend	that	you	cover	the	table	surface	with	soft	cloth	to	prevent	
damage	to	the	monitor.
21
1.4 Monitor introduction
1.4.1  Front of the LCD monitor
1.4.1.1 VH238H
 
  
						

							1-2Chapter	1:	Product	Introduction
1. 	Button:
•	Automatically	adjust	the	image	to	its	optimized	position,	clock,	and	
phase	by	long	pressing	this	button	for	2-4	seconds	(for	VGA	mode	only).
•	Use	this	hotkey	to	switch	from	six	video	preset	modes	(Scenery	Mode,	
Standard	Mode,	Theater	Mode,	Game	Mode,	Night	View	Mode,	and	
sRGB	Mode)	with	SPLENDID™	Video	Intelligence	Technology.
•	Exit	the	OSD	menu	or	go	back	to	the	previous	menu	as	the	OSD	menu	
is	active.
2. 	Button:
•	Press	this	button	to	decrease	the	value	of	the	function	selected	or	move	
to	the	next	function.
•	This	is	also	a	hotkey	for	Volume	adjustment.
3. MENU	Button:
•	Press	this	button	to	enter/select	the	icon	(function)	highlighted	while	the	
OSD	menu	is	activated.
4. 	Button:
•	Press	this	button	to	increase	the	value	of	the	function	selected	or	move	
to	the	previous	function.
•	This	is	also	a	hotkey	for	Brightness	adjustment.
5.		Input	Select	Button:
•	Use	this	hotkey	to	switch	from	VGA,	DVI,	HDMI	input	signals.
Press		(Input	Select	button)	to	display	HDMI	signal	after	you	connect	cable	
with the monitor.
6. 	Power	Button:
•	Press	this	button	to	turn	the	monitor	on/off.
7. Power	Indicator:
StatusDescription
		BlueON
		AmberStandby	mode
  OFFOFF
  
						

							1-3ASUS	LCD	Monitor	VH238H	Series
1.4.2 Rear of the LCD monitor
 
1.4.2.1 VH238H
1AC-IN port
2HDMI-IN port
3DVI port
4VGA port
5Line-in port
6Earphone-out port
7HDMI SPDIF OUT
Screw holes for 
VESA Wall Mount
  
						

							2-1ASUS	LCD	Monitor	VH238H	Series
2.1   Detaching the arm/stand 
(for VESA wall mount)
The	detachable	stand	of	the	VH238H	Series	LCD	monitor	is	specially	designed	for	
VESA	wall	mount.
To detach the arm/stand:
1. Remove	the	arm	cover.
2. Have	the	front	of	the	monitor	face	down	on	a	table.	
3. Use	a	screwdriver	to	remove	the	three	screws	on	the	stand	of	the	monitor	as	
the	below	drawing	shows.
4. Detach the arm from the monitor. 
•		
We	recommend	that	you	cover	the	table	surface	with	soft	cloth	to	prevent	
damage	to	the	monitor.
•	 Hold	the	stand	of	the	monitor	when	you	remove	the	screws.	
•	The	VESA	wall	mount	kit	(	100	x	100	mm)	is	purchased	separately.
•	 Use	only	the	UL	Listed	Wall	Mount	Bracket	with	minimum	weight/load 
19.2	Kg	(Screw	size:	M4	x	12	mm).