Asus ML248H User manual

ML248 Series
LED Monitor
User Guide

ii
Contents
Notices......................................................................................................... iii
Safety information ...................................................................................... iv
Care & Cleaning........................................................................................... v
Chapter 1: Product introduction
1.1 Welcome! .................................................................................... 1-1
1.2 Package contents......................................................................... 1-1
1.3 Monitor introduction .................................................................... 1-2
1.3.1 Front view ....................................................................... 1-2
1.3.2 Back view........................................................................ 1-3
Chapter 2: Setup
2.1 Assembling the monitor base..................................................... 2-1
2.2 Adjusting the monitor.................................................................. 2-2
2.3 Connecting the cables................................................................. 2-3
2.4 Turning on the monitor................................................................ 2-3
Chapter 3: General instructions
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 Specicationssummary(ML248H)............................................. 3-4
3.3 Troubleshooting (FAQ)................................................................ 3-5
3.4 Supported operating modes ....................................................... 3-6

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installed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.
The use of shielded cables for connection of the monitor to the graphics card is
required to assure compliance with FCC regulations. Changes or modifications
tothisunitnotexpresslyapprovedbythepartyresponsibleforcompliance
couldvoidtheuser’sauthoritytooperatethisequipment.
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extention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.
Thissymbolofthecrossedoutwheeledbinindicatesthattheproduct(electrical,
electronicequipment,andmercury-containingbuttoncellbattery)shouldnot
be placed in municipal waste. Please check local regulations for disposal of
electronic products.

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monitor.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.

vi
Wheretond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.

1-1ASUSML248SeriesLEDMonitor
1.1 Welcome!
ThankyouforpurchasingtheASUS®LEDmonitor!
The latest widescreen LED 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monitorbringstoyou!
1.2 Package contents
Checkyourpackageforthefollowingitems:
LEDmonitor
Quick start guide
Warrantycard
Power cord + power adapter
VGAcable
HDMI-DVIcable
Ifanyoftheaboveitemsisdamagedormissing,contactyourretailer
immediately.

1-2 Chapter 1: Product introduction
1.3 Monitor introduction
1.3.1 Front view
1 2 643 5
1. button:
• Selects a desired preset mode.
• ExitstheOSDmenuorgoesbacktothepreviousmenuwhentheOSD
menu is active.
• Automaticallyadjuststheimagetoitsoptimizedposition,clock,andphase
bytouchingthisbuttonfor2-4seconds(forVGAmodeonly).
2.
• Decreasesvaluesormovesyourselectionleft/down.
• Contrasthotkey
3. MENUbutton:
• Turns on the OSD menu. Enacts the selected OSD menu item.

1-3ASUSML248SeriesLEDMonitor
4.
• Increasesvaluesormovesyourselectionright/up.
• Brightnesshotkey
5. button:
• Selects an available input source.
6. Powerbutton/powerindicator
• Turnsthemonitoron/off.
• The color definition of the power indicator is as the below table.
Status Description
White ON
White(fitful) Standbymode
OFF OFF
1.3.2 Back view
Rear connectors
1. DC-IN port. This port connects the power cord.
2. VGA port.This15-pinportisforPCVGAconnection.
3. HDMIport. This port is for connection with an HDMI compatible device.
4. Earphone jack.This port is only available when an HDMI cable is
connected.
5. Kensington lock slot.

1-4 Chapter 1: Product introduction

2-1ASUSML248SeriesLEDMonitor
2.1 Assembling the monitor arm/base
Toassemblethemonitorarm/base:
1. Have the front of the monitor face down on a table.
2. Placethecirculararmonthebackofthemonitorbyaligningthepinsonthe
armwiththeslotsonthemonitor.Useacoinortheliketoturnthescrewuntil
thecirculararmissecurelyattachedtothemonitor.Putthescrewcoveronthe
screw.
3. Attachthecircularbasetothearmbyusingacoinortheliketoturnthescrew
untilthecircularbaseissecurelyattachedtothearm.
4. Thearm/baseinstallationiscomplete.
Werecommendthatyoucoverthetablesurfacewithsoftclothtoprevent
damage to the monitor.
Base
Arm

2 Chapter 2: Setup
2.2 Adjusting the monitor
• Foroptimalviewing,werecommendthatyoulookatthefullfaceofthemonitor,
thenadjustthemonitortotheanglethatismostcomfortableforyou.
• Holdthestandtopreventthemonitorfromfallingwhenyouchangeitsangle.
• Youcanadjustthemonitor’sanglefrom+20˚to -5˚and it allows 20˚swivel
adjustment from either left or right.
-5 20
20
º
20
º
0
º
Itisnormalthatthemonitorslightlyshakeswhileyouadjusttheviewingangle.

2-3ASUSML248SeriesLEDMonitor
2.3 Connecting the cables
1. Connect the cables as the following instructions:
• To connect the power cord:
a. Connectthepoweradaptersecurelytothemonitor’sDCinputport.
b. Connect one end of the power cord to the power adapter and the other
end to a power outlet.
• ToconnecttheVGA/HDMI-DVIcable:
a. PlugoneendoftheVGA/HDMI-DVIcabletothemonitor’sVGA/HDMI
port.
b. ConnecttheotherendoftheVGA/HDMI-DVIcabletoyourcomputer's
VGA/DVIport.
c. TightenthetwoscrewstosecuretheVGA/DVIconnector.
• Tousetheearphone(onlywhenanHDMIcable,notthesuppliedHDMI-
DVIcable,isconnected):connecttheendwithplugtypetothemonitor’s
earphone jack.
Whenthesecablesareconnected,youcanchoosethedesiredsignalfromthe
Input Select item in the OSD menu.
2.4 Turning on the monitor
Tap the power button . See page 1-2 for the location of the power button. The power
indicator lightsupinwhitetoshowthatthemonitorisON.

2-4 Chapter 2: Setup

3-1ASUSML248SeriesLEDMonitor
3.1 OSD (On-Screen Display) menu
3.1.1 Howtoreconfigure
1. TaptheMENUbuttontoactivate
the OSD menu.
2. Ta p , a n d t o
navigate through the functions.
Highlight the desired function
andtaptheMENUbuttonto
activateit.Ifthefunctionselectedhasasub-menu,tap and
again to navigate through the sub-menu functions. Highlight the desired sub-
menufunctionandtaptheMENUbuttontoactivateit.
3. Tap ,and to change the settings of the selected function.
4. To exit and save the OSD menu, tap the  button repeatedly until the
OSD menu disappears. Toadjustotherfunctions,repeat steps 1-3.
3.1.2 OSD function introduction
1. Splendid
Thisfunctioncontainssixsub-
functionsyoucanselectforyour
preference. Each mode has the
Resetselection,allowingyouto
maintainyoursettingorreturnto
the preset mode.
• Standard Mode:bestchoicefordocumenteditingwithSPLENDID™
VideoEnhancement.
• Theater Mode:bestchoiceformovieswithSPLENDID™Video
Enhancement.
• Game Mode:bestchoiceforgamesplayingwithSPLENDID™Video
Enhancement.
• Scenery Mode:bestchoiceforsceneryphotodisplaywithSPLENDID™
VideoEnhancement.
• Night View Mode: best choice for dark-scene games or movies with
SPLENDID™VideoEnhancement.
• sRGB Mode: best choice for viewing photos and graphics from PCs.
IntheStandardMode,theASCR,SaturationandSharpnessfunctionsare
not user-configurable.

3-2
2. Color
Youcanadjustbrightness,
contrast,sharpness,saturation,
position(VGAonly),andfocus
(VGAonly)fromthismenu.
• Brightness: the adjusting
range is from 0 to 100.
isahotkeytoactivatethis
function.
• Contrast: the adjusting range is from 0 to 100. isahotkeyto
activate this function.
• Saturation: the adjusting range is from 0 to 100.
• Color Temp.:containsfourcolormodesincludingCool,Normal,Warm,
andUserMode.
• Skin Tone:containsthreecolormodesincludingReddish,Natural,and
Yellowish.
• Smart View:providesbetterdisplayqualityunderbigviewingangle.
IntheUsermode,colorsofR(Red),G(Green),andB(Blue)areuser-
configurable; the adjusting range is from 0-100.
3. Image
Selecttheimagecoloryoulike
from this function.
• Sharpness: the adjusting
range is from 0 to 100.
• Trace Free: adjusts the
response time of the monitor.
• Aspect Control: adjusts the
aspectratiotofull,4:3,or
overscan(onlyavailablefortheHDMIinput).
• ASCR:turnson/offtheASCR(ASUSSmartContrastRatio)function.
• Position:adjuststhehorizontalposition(H-Position)andthevertical
position(V-Position)oftheimage.Theadjustingrangeisfrom0to100.
• Focus:reducesHorizonal-linenoiseandVertical-linenoiseoftheimage
byadjusting(Phase)and(Clock)separately.Theadjustingrangeisfrom0
to 100.
• Phaseadjuststhephaseofthepixelclocksignal.Withawrongphase
adjustment,thescreenshowshorizontaldisturbances.
• Clock(pixelfrequency)controlsthenumberofpixelsscannedbyone
horizontalsweep.Ifthefrequencyisnotcorrect,thescreenshowsvertical
stripes and the image is not proportional.

3-3ASUSML248SeriesLEDMonitor
4. Input Select
Inthisfunction,youcanselect
yourdesiredinputsource.
5. System Setup
Allowsyoutoadjustthesystem.
• Splendid Demo Mode:
splits the screen into two for
Splendid modes comparison.
• Volume: the adjusting range is from 0 to 100.
• ECO Mode: reduces power consumption.
• OSD Setup:
* Adjuststhehorizontalposition(H-Position)/theverticalposition
(V-Position)oftheOSDfrom0to100.
* Adjusts the OSD timeout from 10 to 120 seconds.
* EnablesordisablestheDDC/CIfunction.
• Information: shows the monitor information.
• Language:thereare10languagesforyourselection,includingEnglish,
German,Italian,French,Dutch,Spanish,Russian,TraditionalChinese,
SimplifiedChinese,andJapanese.
• All Reset:“Yes”allowsyoutorestorethedefaultsettings.

3-4
3.2 Specicationssummary(ML248H)
Panel Type TFTLCD
Panel size 24"(16:9,61cm)widescreen
Max. Resolution 1920x1080
Pixel pitch 0.2768mm
Brightness (Max.) 250cd/m2
Contrast Ratio (Typ.) 1000:1
Contrast Ratio (Max.) 10,000,000:1(withASCRon)
Viewingangle(H/V)CR>10 170˚/160˚
Display colors 16.7 M
Response time 2 ms
SPLENDID™Video
Enhancement
Yes
SPLENDID™selection 6videopresetmodes(byhotkey)
Auto adjustment Yes(byhotkey)
Color temperature selection 4 color temperatures
Skin-Tone selection 3 skin-tones
Digital input HDMI v1.3
Analog input D-Sub
Earphone jack Yes(OnlyforHDMI)
Colors Black(frontside)/White(backside)
PowerLED White(On)/White(Standby)
Tilt +20˚~ -5˚
Swivel +20˚~ -20˚
Kensington lock Yes
AC/DC adaptor input
voltage
AC:100~240V
Foruseonlywithpowersupplyvia
Asus ADP-40PH AB
Power consumption PowerOn:<30W,Standby:<1W,PowerOff:<1W
Temperature (Operating) 0˚C~40˚C
Temperature
(Non-operating)
-20˚C~+60˚C
Dimension(WxHxD) 572mmx431mmx221mm(machine)
650mmx483mmx171mm(package)
Weight (Esti.) 4.1kg(Net);6.1kg(Gross)
Multi-languages 10languages(English,German,Italian,French,Dutch,
Spanish,Russian,TraditionalChinese,Simplified
Chinese,Japanese)
Accessories VGAcable,HDMI-DVIcable,Powercord,Poweradapter,
Quickstartguide,Warrantycard
Regulation approvals EnergyStar®,CB,CE,Gost-R,CCC,UL/cUL,FCC,
C-Tick,BSMI,VCCI,RoHS,WEEE,J-MOSS,PSB,PSE,
WindowsVista,Windows7WHQL
*Specicationsaresubjecttochangewithoutnotice.

3-5ASUSML248SeriesLEDMonitor
3.3 Troubleshooting (FAQ)
Problem Possible Solution
PowerLEDisnotON • Tap the button to check if the monitor is
intheONmode.
• Checkifthepowercordisproperly
connected to the monitor and the power
outlet.
ThepowerLEDlightsamberandthereis
no screen image
• Check if the monitor and the computer are
intheONmode.
• Makesurethesignalcableisproperly
connected the monitor and the computer.
• Inspect the signal cable and make sure
none of the pins are bent.
• Connect the computer with another
available monitor to check if the computer
isproperlyworking.
Screen image is too light or dark • Adjust the Contrast and Brightness
settings via OSD.
Screenimageisnotcenteredorsized
properly
• Touch the button for 2-4 seconds
toautomaticallyadjusttheimage(forVGA
modeonly).
• AdjusttheH-PositionorV-Position
settings via OSD.
Screen image bounces or a wave pattern is
present in the image
• Makesurethesignalcableisproperly
connected to the monitor and the
computer.
• Moveelectricaldevicesthatmaycause
electrical interference.
Screenimagehascolordefects(whitedoes
notlookwhite)
• Inspect the signal cable and make sure
that none of the pins are bent.
• Perform All Reset via OSD.
• AdjusttheR/G/Bcolorsettingsorselect
the Color Temperature via OSD.
Screenimageisblurryorfuzzy • Touch the button for 2-4 seconds
toautomaticallyadjusttheimage(forVGA
modeonly).
• Adjust the Phase and Clock settings via
OSD.
Nosoundorsoundislow • EnsurethattheHDMIcableisproperly
connected to the monitor and the
computer.
• Adjustthevolumesettingsofbothyour
monitor and HDMI device.
• Ensure that the computer sound card
driverisproperlyinstalledandactivated.

3-6
3.4 Supported operating modes
Resolution
Frequency
Horizontal
Frequency(KHz)
Vertical Frequency
(Hz)
Pixel
(MHz)
720x400 31.47 70.08 28.32
640x480 31.47 59.94 25.18
640x480 35.00 66.66 30.24
640x480 37.87 72.82 31.50
640x480 37.50 75.00 31.50
800x600 35.16 56.25 36.00
800x600 37.88 60.32 40.00
800x600 48.08 72.12 50.00
800x600 46.86 75.00 49.50
832x624 49.72 74.55 57.28
1024x768 48.36 60.00 65.00
1024x768 56.476 70.069 75.00
1024x768 60.02 75.00 78.75
1152x864 67.50 75.00 108.00
1280x960 60.00 60.00 108.00
1280x1024 63.98 60.02 108.00
1280x1024 79.98 75.02 135.00
1366x768 47.712 59.79 85.50
1440x900 55.94 59.89 106.50
1600x1200 75.00 60.00 162.00
1680x1050 65.29 60.00 146.25
1920x1080 67.50 60.00 148.50
*Modesnotlistedinthetablemaynotbesupported.Foroptimalresolution,werecommendthat
you choose a mode listed in the table above.
*ThismonitorsupportsfullHD(480p,576p,720p,1080i/p)videocontentfromgameconsoles,DVD
playersandotherconsumervideodevicesviaHDMI.