Acer T231H User manual

TABLEOFCONTENTS
Specialnoteson LCDmonitors..................................................1
Information foryoursafetyand comfort..................................2
Unpacking...................................................................................5
Screenposition adjustment........................................................6
Connecting thepowercord.......................................................7
Safetyprecaution.......................................................................7
Cleaning yourmonitor...............................................................7
Powersaving...............................................................................8
DDC..............................................................................................8
ConnectorPinAssignment.........................................................9
StandardTiming Table..................................................................11
Installation.....................................................................................12
Usercontrols..................................................................................13
Troubleshooting............................................................................19

EN-1
SPECIALNOTESONLCDMONITORS
Thefollowingsymptoms are normalwithLCDmonitorand do notindicate a
problem.
NOTES
•Duetothenatureofthefluorescentlight,thescreenmayflickerduring
initialuse.Turnoff thePowerSwitch andthenturniton againtomake
sure theflicker disappears.
•You mayfind slightlyunevenbrightness onthescreendepending on the
desktop patternyou use.
•TheLCDscreenhaseffectivepixelsof99.99%ormore.Itmayinclude
blemishesof0.01%orlesssuchas amissing pixelorapixellitallofthe
time.
•DuetothenatureoftheLCDscreen, anafterimageofthepreviousscreen
mayremain after switching theimage,whenthesame imageisdisplayed
forhours.Inthiscase,thescreenisrecoveredslowlybychanging the
imageorturning off thePower Switchforhours.

EN-2
Information foryoursafetyand comfort
Safetyinstructions
Readtheseinstructionscarefully.Keepthisdocumentforfuturereference.Followall
warningsandinstructionsmarkedontheproduct.
CAUTIONforaccessibility
Besurethatthepoweroutletyouplugthepowercordintoiseasilyaccessibleand
locatedasclosetotheequipmentoperatoraspossible.Whenyouneedtodisconnect
powertotheequipment,besuretounplugthepowercordfromtheelectricaloutlet.
Warnings
•Donotusethisproductnearwater.
• Donotplacethisproductonanunstablecart,standortable.Ifthe
productfalls,itcould beseriouslydamaged.
•Slotsandopeningsareprovidedforventilationtoensurereliableoperationof
theproductand toprotectitfromoverheating.Theseopeningsmust notbe
blockedorcovered.Theopeningsshould neverbeblockedbyplacingthe
productonabed,sofa,rugorothersimilarsurface.Thisproductshouldnever
beplacednearoroveraradiatororheatregister,orinabuilt-ininstallation
unlessproperventilationisprovided.
•Neverpushobjectsofanykindintothisproductthroughcabinet
slotsastheymaytouchdangerousvoltagepointsorshort-outpartsthatcould
resultinafireorelectricshock.Neverspill liquidofanykindontoorintothe
product.
•Toavoiddamageofinternalcomponentsandtopreventbatteryleakage, do
notplacetheproductonavibratingsurface.
•Neveruseitundersporting,exercising,oranyvibratingenvironmentwhich
willprobablycauseunexpectedshortcurrentordamagerotordevices,HDD,
Opticaldrive,andevenexposureriskfromlithiumbatterypack.
Safelistening
Followtheseinstructions,suggestedbyhearingexperts,toprotectyourearing.
•Graduallyincreasethevolumeuntilyoucanhearitclearlyandcomfortablyand
withoutdistortion.
•Aftersetting thevolumelevel, do notincreaseitafteryourearsadjust.
•Limittheamountoftimelisteningtomusicathighvolume.
•Avoidturningupthevolumetoblockoutnoisysurroundings.
•Turnthevolumedownifyoucan’thearpeoplespeakingnearyou.

EN-3
Productservicing
Donotattempttoservicethisproductyourself,asopeningorremovingcoversmay
exposeyoutodangerousvoltagepointsorotherrisks.Referall servicingtoqualified
servicepersonnel.
Unplugthisproductfromthewalloutletand referservicingtoqualifiedserviceperson-
nelwhen:
•thepowercordorplug isdamaged,cutorfrayed
•liquidwasspilledintotheproduct
•theproductwasexposedtorain orwater
•theproducthasbeendroppedorthecasehasbeendamaged
•theproductexhibitsadistinctchangein performance,indicatinganeedforservice
•theproductdoesnotoperatenormallyafterfollowing theoperatinginstructions
-----------------------------------------------------------------------------------------------------
Note:Adjustonlythosecontrolsthatarecoveredbytheoperatinginstructions,
sinceimproperadjustmentofothercontrolsmayresultindamageandwill
oftenrequireextensiveworkbyaqualifiedtechniciantorestoretheproductto
normalcondition.
LCDPixelStatement
TheLCDunitisproducedwithhigh-precision manufacturing techniques.Nevertheless,
some pixelsmayoccasionallymisfireorappearasblackorreddots.Thishasnoeffecton
therecordedimageanddoesnotconstituteamalfunction.
Tipsand informationforcomfortableuse
Computerusers maycomplainofeyestrainandheadachesafterprolongeduse.Usersare
alsoatriskofphysicalinjuryafterlonghoursofworkinginfrontofacomputer.Long
workperiods,badposture,poorworkhabits,stress,inadequateworkingconditions,
personalhealthandotherfactors greatlyincreasetheriskofphysicalinjury.
Incorrectcomputerusagemayleadtocarpaltunnelsyndrome,tendonitis,tenosynovitis
orothermusculoskeletaldisorders.Thefollowingsymptomsmayappearin thehands,
wrists,arms,shoulders,neckorback:
•numbness,oraburningortinglingsensation
•aching,sorenessortenderness
•pain, swelling orthrobbing
•stiffnessortightness
•coldness orweakness
Ifyou havethesesymptoms,oranyotherrecurringorpersistentdiscomfortand/orpain
relatedtocomputeruse,consultaphysicianimmediatelyandinformyourcompany’s
healthandsafetydepartment.
Thefollowingsection providestipsformorecomfortablecomputeruse.
Finding yourcomfortzone
Findyourcomfortzonebyadjustingtheviewingangleofthemonitor,usingafootrest,
orraisingyoursittingheighttoachievemaximumcomfort.Observethefollowingtips:
•refrainfromstayingtoo longin onefixedposture
•avoid slouching forwardand/orleaning backward
•standupandwalkaround regularlytoremovethestrainonyourlegmuscles

EN-4
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Warning!Wedonotrecommend using theproducton acouchorbed.Ifthisis
unavoidable,workforonlyshortperiods,takebreaksregularly,anddosome
stretchingexercises.
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Formoreinformation andhelp in recycling,pleasevisitthefollowingwebsites:
Worldwide:
http://www.acer-group.com/public/Sustainability/sustainability01.htm
http://www.acer-group.com/public/Sustainability/sustainability04.htm
•take short rests torelaxyourneckandshoulders
•avoidtensing yourmusclesorshruggingyourshoulders
•installtheexternaldisplay,keyboardandmouseproperlyandwithincomfort
ablereach
•ifyouviewyourmonitormorethanyourdocuments,placethedisplayatthe
centerofyourdesktominimizeneckstrain
Taking care ofyourvision
Longviewinghours,wearingincorrectglassesorcontactlenses,glare,excessiveroom
lighting,poorlyfocusedscreens,verysmalltypefacesandlow-contrastdisplayscould
stressyoureyes.Thefollowingsectionsprovidesuggestionsonhowtoreduceeyestrain.
Eyes
•Restyoureyesfrequently.
•Giveyoureyesregularbreaksbylookingawayfromthemonitorandfocusing
onadistantpoint.
•Blinkfrequentlytokeepyoureyesfromdryingout.
Display
•Keepyourdisplayclean.
•Keepyourheadatahigherlevelthanthetopedgeofthedisplaysoyoureyes
pointdownwardwhenlookingatthemiddleofthedisplay.
•Adjustthedisplaybrightness and/orcontrast toacomfortablelevelforenhanced
textreadabilityandgraphicsclarity.
•Eliminateglareand reflectionsby:
•placing yourdisplayin suchawaythatthesidefacesthewindoworanylight
source
•minimizingroomlightbyusingdrapes,shadesorblinds
•usingatasklight
•changing thedisplay’sviewing angle
• usingaglare-reductionfilter
•usingadisplayvisor,suchasapieceofcardboardextendedfromthedisplay’s
topfrontedge
•Avoidadjusting yourdisplaytoanawkwardviewingangle.
•Avoidlookingatbrightlightsources,suchasopenwindows,forextended
periodsoftime.
Developing good workhabits
Developthefollowingworkhabitstomakeyourcomputerusemorerelaxingand
productive:
•Takeshortbreaksregularlyandoften.
•Performsomestretchingexercises.
•Breathefreshairasoftenaspossible.
•Exerciseregularlyandmaintain ahealthybody.

EN-5
•LCDMonitor
UNPACKING
Please checkthefollowing itemsare presentwhenyouunpackthebox,
andsavethepacking materialsincaseyouwillneedtoship ortransport
themonitorinfuture.
•UserManual
•ACPower Cord •D-Sub Cable
(Optional)
•QuickStart Guide
•DVICable
(Optional)
•AudioCable
(Optional)
•USBCable
(Optional)

EN-6
SCREENPOSITIONADJUSTMENT
In oder tooptimizethebestviewing position,you canadjustthetiltof
themonitorbyusing bothofyourhandstohold theedges ofthemonitor
as shownin thefigurebelow.
Themonitorcanbeadjusted5degrees to60degrees upas indicatedby
arrowbelow.
60

EN-7
CONNECTINGTHEPOWERCORD
•Checkfirst tomake sure that thepower cordyou use isthecorrecttype
requiredforyourarea.
•Thismonitorhas auniversalpower supplythat allowsoperation in either
100/120VACor220/240VACvoltagearea.Nouser-adjustmentisrequired.
•Plug oneend ofthepower cord totheAC Inlet, pluganother end to a
proper ACoutlet.
•Forunitusingat 120 VAC:
UseaULListedCordSet,TypeSVTwire and plug rated10 A/125V.
•Forunitusingat220/240 VAC(outsideofU.S.):
Use aCordSet consisting ofH05VV-F cordandplug rated10 A,250 V.The
cordsetshould havetheappropriatesafetyapprovalsforthecountryin
which theequipmentwill beinstalled.
SAFETYPRECAUTION
•Avoidplacing themonitor,oranyotherheavyobject,on thepowercord
toavoiddamagetothecable.
•Donotexposethemonitortorain, excessivemoisture,ordust.
•Donotcover theventilationslots oropeningsofthemonitor.Always
putthemonitorinaplacewherethere isadequate ventilation.
•Avoid placing themonitoragainst abrightbackground orwhere sun-
lightorotherlightsourcesmayreflectonthefaceofthemonitor.Place
themonitorjust beloweyelevel.
•Handlewithcare whentransporting themonitor.
•Refrain fromgiving shockorscratch tothescreen,as screenisfragile.
CLEANINGYOURMONITOR
Please carefullyfollowthebelowguidelines whencleaning themonitor.
•Alwaysunplug themonitorbeforecleaning.
•Useasoft clothtowipethescreenand cabinetfrontandsides.

EN-8
Powersaving
Themonitorwill bedriven intoPowerSaving”modebythecontrol signal
fromthedisplaycontroller,asindicatedbytheamber-colorpower LED.
Thepower saving states will bekeptuntil acontrol signalhas beendetected
orthekeyboard ormouse isactivated. TherecoverytimefromActiveOFF
state backtoONstateisaround3seconds.
DDC
Tomakeyourinstallation easier,themonitorisabletoPlug and Playwith
yoursystem ifyoursystemalsosupportsDDCprotocol.TheDDC(Display
Data Channel)isacommunication protocol through whichthemonitor
automaticallyinformsthehost system aboutits capabilities,forexample,
supportedresolutionsand corresponding timing. Themonitorsupports
DDC2Bstandard.
State LED
Light
ON Blue
Power Saving
Mode Orange

EN-9
PINNO. DESCRIPTION PINNO. DESCRIPTION
1. Red 9. +5V
2. Green 10. Logic Ground
3. Blue 11. MonitorGround
4. MonitorGround 12. DDC-SerialData
5. DDC-return 13. H-Sync
6. R-Ground 14. V-Sync
7. G-Ground 15. DDC-SerialClock
8. B-Ground
CONNECTORPINASSIGNMENT
15-Pin ColorDisplaySignalCable

EN-10
24-Pin ColorDisplaySignalCable*
PIN Meaning PIN Meaning
1. TMDSData2- 13. NC
2. TMDSData2+ 14. +5V Power
3. TMDSData2/4Shield 15. LogicGround
4. NC 16. HotPlug Detect
5. NC 17. TMDSData0-
6. DDCClock 18. TMDSData0+
7. DDCData 19. TMDSData0/5Shield
8. NC 20. NC
9. TMDSData1- 21. NC
10. TMDSData1+ 22. TMDSClockShield
11. TMDSData1/3Shield 23. TMDSClock+
12. NC 24. DDCTMDSClock-
19-Pin colordisplaysignalcable*
PIN Meaning PIN Meaning
1. TMDSData2+ 10. TMDSClock+
2. TMDSData2Shield 11. TMDSClockShield
3. TMDSData2– 12. TMDSClock–
4. TMDSData1+ 13. CEC
5. TMDSData1Shield 14. Reserved(N.C.on
device)
6. TMDSData1– 15. SCL
7. TMDSData0+ 16. SDA
8. TMDSData0Shield 17. DDC/CECGround
9. TMDSData0– 18. +5VPower
19. HotPlugDetect
*onlyforcertain models

EN-11
StandardTiming Table
Mode Resolution
1VGA 640x480 60 Hz
2MAC 640x480 66.66 Hz
3VESA 720x400 70 Hz
4SVGA 800x600 56 Hz
5SVGA 800x600 60 Hz
6XGA 1024x768 60 Hz
7XGA 1024x768 70 Hz
8VESA 1152x864 75 Hz
9WXGA 1280x800 60 Hz
10 SXGA 1280x1024 60 Hz
11 WXGA+ 1440x900 60 Hz
12 UXGA 1920x1080 60 Hz

EN-12
INSTALLATION
To install themonitorto yourhost system,pleasefollowthestepsas given
below:
Steps
1.1-1 ConnectVideoCable
a.Make sureboththemonitorandcomputer are powered-OFF.
b. ConnecttheVGAvideocabletothecomputer.
1-2 ConnectDigitalCable(OnlyDual-InputModel)
a.Make sureboththemonitorandcomputer are powered-OFF.
b. Connectoneendofthe24-pinDVIcabletothebackofthe
monitorand connecttheother end tothecomputer’sport.
1-3 ConnectHDMICable(OnlyHDMI-InputModel)
a.Make sureboththemonitorandcomputer are powered-OFF.
b. ConnecttheHDMIcabletothecomputer.
2.ConnecttheUSBCable(Optional)
3.ConnecttheAudio Cable(OnlyAudio-InputModel)(Optional)
4.Connectpowercord
Connectthepower cordtothemonitor,thentoaproperlygroundedAC
outlet.
5.Power-ONMonitorand Computer
Power-ONthemonitorfirst,thenpower-ONthecomputer.
Thissequenceisveryimportant.
6.Ifthemonitorstill does notfunction properly,please refertothe
troubleshooting section todiagnose theproblem.
DVI
HDMI VGA
1-2
DVI
1-3
HDMI
1-1
VGA
32
1-11-21-3
ACIN AUDIOIN USBVGAINHDMIDVI-DIN
3
23

EN-13
USERCONTROLS
Power Switch /Power LED:
Toturnthe monitorONorOFF.
Lightsuptoindicatethe poweristurned ON.
UsingtheShortcutMenu
Press thefunction button toopentheshortcutmenu.Theshortcutmenulets you
quicklyselect the mostcommonlyaccessed settings.
Empowering:
PresstheEmpoweringKey toopentheAcereColorManagementOSDand access
thescenariomodes.
AUTO AutoAdjust:
Press thisbuttontoactivatetheAutoAdjustmentfunction.TheAutoAdjustment
function isusedtosettheHPos,VPos,Clockand Focus.
MENU OSDfunctions
Press thisbottontoactivatethe OSDmenu.
VolumeUp/Down
Presstoadjustvolume(OnlyAudio-InputModel)(Optional)
INPUT InputKey
UseInputkeytoselectfromdifferentvideosourcesthatmaybeconnected to
yourmonitor.
(a)VGA input(b)DVIinput(c) HDMI input
Asyoucyclethroughthe sourcesyouwill see thefollowingmessageson righttop
side ofscreen toindicatecurrentlyselected inputsource. Itmaytake 1or2
secondsforthe image toappear.
VGAorDVI orHDMI
IfeitherVGAorDVIinputisselected ,buttheVGAand DVIcablesarenotcon-
nected,afloatingdialogboxindicates:
“NoCableConnect”or“NoSignal”

EN-14
Main
Menu
icon
Sub
Menu
icon
Sub
Menu
item Description
N/A Usermode Userdefined.Settingscanbe fine-tuned to
suitany situation
N/A Textmode Optimalbalanceofbrightness andcontrast preventeyestrain.Themost comfortableway
toreadonscreen text
N/A Standard
mode DefaultSetting.Reflectsnativedisplay capability
N/A Grahpic
mode
Enhancescolorsandemphasize finedetail.
Picturesandphotographsappearinvibrant
colors withsharpdetail.
N/A Movie
mode
Displaysscenesinclearestdetail.Presents
greatvisuals,eveninunsuitably-lit
environments.
AcereColorManagement
Operationinstructions
Step1:Press “ “KeytoopentheAcereColorManagementOSDand
accessthescenario modes
Step2:Press “ “or“ ”toselectthemode
Step3:Press “AUTO“Keytoconfirm themodeandrunAutoAdjust.
Featuresand Benefits

EN-15
AdjustingtheOSDsettings
--------------------------------------------------------------------
Note:Thefollowing contentisforgeneralreferenceonly.Actual
productspecificationsmayvary.
TheOSDcanbeusedforadjusting thesettingsofyourLCDMonitor.
Press the MENU keytoopentheOSD.You canuse theOSDtoadjust the
picture quality,OSDposition and generalsettings.Foradvancedsettings,
please refer tofollowing page:
Adjustingthepicture quality
1Press the MENU keytobring up theOSD.
2Using the / keys,select Picture fromtheOSD.Thennavigate to
thepicture elementyou wishtoadjust.
3Use the / keystoadjust thesliding scales.
4ThePicture menu canbeusedtoadjust thecurrentBrightness,Contrast,
ColourTemp,AutoConfig and otherimage-relatedqualities.

EN-16
Adjusting theOSDposition
1Press the MENU keytobring up theOSD.
2Using thedirectionalkeys,select OSDfromtheon screendisplay.
Thennavigate tothefeature you wishtoadjust.

EN-17
Adjusting thesetting
1Press the MENU keytobring up theOSD.
2Using the / keys,select Setting fromtheOSD.Thennavigate to
thefeature you wishtoadjust.
3TheSetting menu canbeusedtoadjust thescreenMenu Languageand
other importantsettings.

EN-18
Productinformation
1Press the MENU keytobring up theOSD.
2Using the / keys,select Information fromtheOSD.Thenthe
basic information ofLCDmonitorwill showup forcurrentinput.
1920 x 1080
H:67KHzV:60Hz
VGAInput
S/N:ETL53091326350380B3742

EN-19
(VGA Mode)
TROUBLESHOOTING
Before sending yourLCDmonitorforservicing, please checkthetrouble-
shootinglistbelowtosee ifyoucanself-diagnosetheproblem.
Problems CurrentStatusRemedy
NoPicture
LEDON · UsingOSD,adjust brightnessandcontrast
tomaximumorresettotheirdefault
settings.
LEDOFF · Checkthepowerswitch.
· CheckifACpowercordisproperly
connectedtothemonitor.
LEDdisplays
ambercolor ·Checkifvideosignalcableisproperly connectedatthebackofmonitor.
·Checkifthepowerofcomputersystemis
ON.
Abnormal
Picture
Unstable
Picture ·Checkifthespecificationofgraphics adapterandmonitorisincompliance
whichmaybecausingtheinputsignal
frequencymismatch.
Displayis
missing,center
shift,ortoo
small ortoo
largeindisplay
size
·UsingOSD,adjust RESOLUTION,CLOCK,
CLOCK-PHASE,H-POSITIONandV-
POSITIONwithnon-standardsignals.
·UsingOSD,incaseofmissingfull-screen
image,pleaseselectotherresolutionor
otherverticalrefreshtiming.
·Waitforafewsecondsafteradjustingthe
sizeoftheimagebeforechangingor
disconnectingthesignalcableorpowering
OFFthemonitor.
Abnormal
Sound
(OnlyAudio-
Inputmodel)
(Optional)
Nosound,or
soundlevelis
too low
·Checktheaudiocablewiththehost PCis
connected.
·CheckifthevolumesetupofthehostPCis
inminimumpositionandtrytoraisethe
volumelevel.