Acer P235H User manual

TABLEOFCONTENTS
SpecialnotesonLCDmonitors..................................................1
Information foryoursafetyand comfort..................................2
Unpacking...................................................................................5
Attaching/Removingthebase....................................................6
Screenposition adjustment........................................................6
Connectingthepowercord.......................................................7
Safetyprecaution.......................................................................7
Cleaning yourmonitor...............................................................7
Powersaving...............................................................................8
DDC..............................................................................................8
ConnectorPinAssignment.........................................................9
StandardTimingTable..................................................................11
Installation.....................................................................................12
Usercontrols..................................................................................13
Troubleshooting............................................................................19

EN-1
SPECIALNOTESONLCDMONITORS
Thefollowingsymptomsarenormal withLCDmonitoranddonotindicatea
problem.
NOTES
•Duetothenature ofthe fluorescentlight,thescreenmayflickerduring
initialuse. TurnoffthePowerSwitchandthenturnitonagaintomake
suretheflickerdisappears.
•Youmayfindslightlyunevenbrightness onthescreendepending onthe
desktoppatternyouuse.
•TheLCDscreenhaseffectivepixelsof99.99%ormore.Itmayinclude
blemishesof0.01% orlesssuchasamissingpixelorapixellitallofthe
time.
•DuetothenatureoftheLCDscreen,anafterimageofthepreviousscreen
mayremainafterswitchingtheimage,whenthesameimageisdisplayed
forhours.Inthiscase,thescreenisrecoveredslowlybychangingthe
image orturningoffthe PowerSwitchforhours.

EN-2
Productservicing
Donotattempttoservicethisproductyourself,asopeningorremovingcoversmay
exposeyou to dangerous voltagepoints or otherrisks.Referallservicingtoqualified
servicepersonnel.
Unplugthisproductfromthewalloutletandreferservicingtoqualifiedserviceperson-
nelwhen:
• thepowercordorplug isdamaged,cutorfrayed
•liquidwasspilledinto theproduct
•theproductwasexposedtorainor water
•theproducthasbeendroppedorthecasehasbeendamaged
Information foryoursafety and comfort
Safetyinstructions
Readtheseinstructionscarefully. Keepthisdocument forfuturereference.Followall
warningsandinstructionsmarkedontheproduct.
CAUTIONforaccessibility
Besurethatthepoweroutletyouplugthepowercord intoiseasily accessibleand
locatedascloseto theequipmentoperatoraspossible.Whenyouneedtodisconnect
powertotheequipment,besuretounplug thepowercord fromtheelectricaloutlet.
Warnings
•Donotusethisproductnearwater.
•Donotplacethisproductonanunstablecart,standortable.Ifthe
productfalls,itcouldbeseriously damaged.
•Slotsandopeningsareprovidedforventilationtoensurereliableoperation of
theproductandtoprotectitfromoverheating.Theseopenings mustnot be
blockedor covered.Theopeningsshouldneverbeblockedbyplacingthe
producton abed,sofa,rugorothersimilarsurface.Thisproductshouldnever
beplacednearoroveraradiatororheatregister,orinabuilt-ininstallation
unlessproperventilationisprovided.
•Neverpush objectsofanykindintothisproductthroughcabinet
slotsastheymaytouchdangerousvoltagepointsorshort-outpartsthatcould
resultinafireor electric shock.Neverspill liquidofanykindonto or intothe
product.
•Toavoiddamageofinternalcomponents andtoprevent batteryleakage, do
notplacetheproducton avibrating surface.
• Neveruseitundersporting,exercising,or anyvibratingenvironment which
will probably causeunexpectedshortcurrent or damagerotordevices,HDD,
Opticaldrive,andevenexposureriskfromlithiumbatterypack.
Safelistening
Followtheseinstructions,suggestedbyhearingexperts,to protectyourearing.
•Graduallyincreasethevolumeuntilyoucanhearitclearlyandcomfortablyand
without distortion.
•Aftersetting thevolumelevel, do notincreaseitafteryourearsadjust.
•Limittheamount of timelisteningtomusicathighvolume.
• Avoidturning up thevolumetoblockoutnoisysurroundings.
•Turn thevolumedownifyoucan’thearpeoplespeakingnearyou.

EN-3
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Note:Adjustonlythosecontrolsthatarecoveredbytheoperatinginstructions,
sinceimproperadjustment of othercontrolsmayresultindamageandwill
oftenrequireextensiveworkbyaqualifiedtechniciantorestoretheproductto
normalcondition.
LCDPixelStatement
TheLCDunitisproducedwith high-precision manufacturingtechniques.Nevertheless,
somepixelsmayoccasionallymisfireorappearasblackorreddots.Thishasnoeffecton
therecordedimageanddoesnotconstituteamalfunction.
Tipsand information forcomfortable use
Computerusersmaycomplainofeyestrainandheadachesafterprolongeduse.Usersare
also atriskofphysicalinjuryafterlonghoursofworkinginfrontofacomputer.Long
workperiods,badposture,poor workhabits,stress,inadequateworking conditions,
personalhealthand otherfactorsgreatlyincreasetheriskofphysicalinjury.
Incorrectcomputerusagemayleadtocarpaltunnelsyndrome,tendonitis,tenosynovitis
orothermusculoskeletaldisorders.Thefollowingsymptomsmayappearinthehands,
wrists,arms,shoulders,neckor back:
•numbness,oraburning ortinglingsensation
•aching,sorenessortenderness
• pain,swellingorthrobbing
• stiffnessortightness
•coldnessor weakness
Ifyouhavethesesymptoms,oranyotherrecurring or persistentdiscomfort and/orpain
relatedto computeruse,consultaphysicianimmediatelyandinformyourcompany’s
healthand safetydepartment.
Thefollowing sectionprovidestipsformorecomfortablecomputeruse.
Finding yourcomfortzone
Find yourcomfortzonebyadjusting theviewing angleof themonitor,using afootrest,
orraising yoursittingheighttoachievemaximumcomfort.Observethefollowing tips:
• refrainfromstayingtoolong inonefixedposture
•avoidslouchingforwardand/or leaningbackward
• standupandwalkaroundregularlytoremovethestrainonyour legmuscles
•take short rests to relaxyourneckandshoulders
•avoidtensing yourmusclesor shruggingyourshoulders
•install theexternaldisplay,keyboardandmouseproperlyand withincomfort
ablereach
• ifyouviewyour monitormorethanyourdocuments,placethedisplayatthe
centerofyourdeskto minimizeneckstrain
•theproductexhibitsadistinctchangeinperformance,indicatinganeedforservice
•theproductdoesnot operatenormally afterfollowing theoperating instructions

EN-4
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Warning!Wedonotrecommend using theproducton acouchorbed.Ifthisis
unavoidable,workforonlyshortperiods,take breaksregularly, anddosome
stretchingexercises.
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For moreinformation and helpinrecycling,pleasevisitthefollowing websites:
Worldwide:
http://www.acer-group.com/public/Sustainability/sustainability01.htm
http://www.acer-group.com/public/Sustainability/sustainability04.htm
Taking care ofyourvision
Long viewinghours,wearingincorrectglassesorcontactlenses,glare,excessiveroom
lighting,poorly focusedscreens,verysmall typefacesandlow-contrast displayscould
stressyoureyes.Thefollowing sections providesuggestionsonhow to reduceeyestrain.
Eyes
•Rest youreyesfrequently.
•Giveyoureyesregularbreaksbylookingawayfromthemonitorand focusing
onadistantpoint.
• Blinkfrequentlytokeepyour eyesfromdryingout.
Display
•Keepyourdisplayclean.
•Keepyourheadatahigherlevelthanthetopedgeof thedisplaysoyoureyes
pointdownwardwhenlookingatthemiddleof thedisplay.
•Adjust thedisplaybrightness and/or contrast to acomfortablelevelfor enhanced
textreadabilityand graphicsclarity.
•Eliminateglareand reflectionsby:
•placing yourdisplayinsuchawaythatthesidefacesthewindoworanylight
source
•minimizing roomlightbyusingdrapes,shadesorblinds
• usingatasklight
•changing thedisplay’sviewingangle
•usingaglare-reductionfilter
•usingadisplayvisor,suchasapieceofcardboardextendedfromthedisplay’s
topfrontedge
•Avoidadjustingyour displaytoanawkwardviewingangle.
• Avoidlooking atbrightlightsources,suchasopenwindows,for extended
periods of time.
Developing goodwork habits
Develop thefollowingworkhabitstomake yourcomputerusemorerelaxingand
productive:
•Take short breaksregularlyandoften.
•Performsomestretchingexercises.
• Breathefresh airasoftenaspossible.
• Exerciseregularlyand maintainahealthybody.

EN-5
•LCDMonitor
UNPACKING
Pleasecheckthefollowingitemsarepresentwhenyouunpackthebox,
andsavethepackingmaterialsincaseyou willneedtoshiportransport
themonitorinfuture.
•UserManual
•ACPowerCord •D-SubCable
•QuickStartGuide
•DVI Cable
(OnlyDual-InputModel)
•AudioCable
(OnlyAudio-InputModel)
(Optional)

EN-6
Attaching /Removing theBase
SCREENPOSITIONADJUSTMENT
Inodertooptimize thebestviewingposition,youcanadjust the tiltof
the monitorbyusingbothofyourhandstoholdtheedgesofthe monitor
asshowninthe figure below.
Themonitorcanbeadjustedto15degreesupor5degreesdownasindi-
catedbyarrowbelow.
--------------------------------------------------------------------
Note: Removethemonitorand monitorbasefrom its packaging.
Carefullyplace themonitorface-downon astable surface -- usea
clothtoavoidscratching thescreen.
Install:
Alignthebasewiththestandand
pushthebasetowardsthetopof
themonitor.
Remove:
Depressthereleasehooksasindi-
catedfirst beforeremovingthe
baseandfollowthearrowdirection
toremoveit.

EN-7
CONNECTING THEPOWERCORD
•Checkfirst tomakesure thatthepowercordyouuseisthecorrecttype
requiredforyourarea.
•Thismonitorhasauniversalpowersupplythatallowsoperationineither
100/120VACor220/240VACvoltagearea.Nouser-adjustmentisrequired.
•PlugoneendofthepowercordtotheACInlet,plug anotherend toa
properACoutlet.
•Forunitusingat120VAC:
Use a ULListedCordSet,Type SVT wireandplugrated10A/125 V.
•Forunitusingat220/240 VAC(outside ofU.S.):
UseaCordSetconsisting ofH05VV-Fcordandplugrated10A,250 V.The
cordsetshouldhavetheappropriatesafetyapprovalsforthe countryin
whichtheequipmentwillbe installed.
SAFETY PRECAUTION
•Avoidplacingthemonitor,oranyotherheavy object,onthepowercord
toavoiddamage tothe cable.
•Donotexpose themonitortorain, excessivemoisture,ordust.
•Donotcovertheventilationslotsoropeningsofthemonitor.Always
putthemonitorinaplacewherethereisadequateventilation.
•Avoidplacingthemonitoragainst abrightbackgroundorwheresun-
lightorotherlightsourcesmayreflectontheface ofthemonitor.Place
themonitorjust beloweye level.
•Handle withcarewhentransportingthemonitor.
•Refrainfromgivingshock orscratchtothescreen, asscreenisfragile.
CLEANINGYOUR MONITOR
Please carefullyfollowthe belowguidelineswhencleaningthemonitor.
•Alwaysunplug themonitorbeforecleaning.
•Useasoftclothtowipethescreenandcabinetfrontandsides.

EN-8
Powersaving
ThemonitorwillbedrivenintoPowerSaving”modebythecontrolsignal
fromthedisplaycontroller,asindicatedbytheamber-colorpowerLED.
Thepowersavingstateswillbekeptuntilacontrolsignalhasbeendetected
orthekeyboardormouseisactivated.TherecoverytimefromActiveOFF
statebacktoONstateisaround3seconds.
DDC
Tomakeyourinstallation easier,themonitorisable toPlugandPlaywith
yoursystemifyoursystemalsosupportsDDCprotocol. TheDDC(Display
DataChannel)isacommunicationprotocolthroughwhichthemonitor
automaticallyinformsthehostsystemaboutitscapabilities,forexample,
supportedresolutionsand correspondingtiming.Themonitorsupports
DDC2Bstandard.
State LED
Light
ON Blue
PowerSaving
Mode Amber

EN-9
PINNO. DESCRIPTION PINNO. DESCRIPTION
1. Red 9. +5V
2. Green 10. LogicGround
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-PinColorDisplaySignalCable

EN-10
24-PinColorDisplaySignal Cable*
PIN Meaning PIN Meaning
1. TMDSData2- 13. NC
2. TMDSData2+ 14. +5VPower
3. TMDSData2/4Shield 15. LogicGround
4. NC 16. HotPlugDetect
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-Pincolordisplaysignal
PIN Meaning PIN Meaning
1. TMDSData2+ 10. TMDSClock+
2. TMDSData2 Shield 11. TMDSClockShield
3. TMDSData2– 12. TMDSClock–
4. TMDSData1+ 13. CEC
5. TMDSData1 Shield 14. Reserved(N.C.on
device)
6. TMDSData1– 15. SCL
7. TMDSData0+ 16. SDA
8. TMDSData0 Shield 17. DDC/CECGround
9. TMDSData0– 18. +5VPower
19. HotPlugDetect
* onlyforcertainmodels

EN-11
StandardTimingTable
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
Toinstallthemonitortoyourhost system,pleasefollow thestepsasgiven
below:
Steps
1.1-1 ConnectVideoCable
a.Makesureboththemonitorandcomputerarepowered-OFF.
b.ConnecttheVGA videocable tothe computer.
1-2 DigitalCable (OnlyDual-InputModel)
a.Makesureboththemonitorandcomputerarepowered-OFF.
b.Connectoneend ofthe24-pinDVIcable totheback ofthe
monitorandconnecttheotherendtothecomputer’sport.
1-3 HDMICable(OnlyHDMI-InputModel)
a.Makesureboththemonitorandcomputerarepowered-OFF.
b.ConnecttheHDMIcable tothecomputer.
2.ConnecttheAudioCable(OnlyAudio-InputModel)(Optional)
3.Connectpowercord
Connectthepowercordtothemonitor,thentoaproperlygroundedAC
outlet.
4.Power-ONMonitorandComputer
Power-ONthemonitorfirst,thenpower-ONthecomputer.
Thissequence isveryimportant.
5.Ifthemonitorstill doesnotfunctionproperly,pleaserefertothe
troubleshooting sectiontodiagnosetheproblem.

EN-13
USERCONTROLS
PowerSwitch/ PowerLED:
ToturnthemonitorONorOFF.
Lights uptoindicatethepoweristurnedON.
Using the ShortcutMenu
Pressthefunctionbuttontoopentheshortcutmenu.Theshortcutmenuletsyou
quicklyselectthemostcommonlyaccessed settings.
Empowering:
PresstheEmpoweringKeytoopenthe AcereColorManagementOSDandaccess
thescenariomodes.
AUTO AutoAdjust:
PressthisbuttontoactivatetheAutoAdjustmentfunction. TheAutoAdjustment
functionisused tosettheHPos,VPos,ClockandFocus.
MENU OSDfunctions
Pressthisbottontoactivatethe OSDmenu.
VolumeUp/Down
Presstoadjustvolume(OnlyAudio-InputModel)(Optional)
INPUT InputKey
UseInputkeytoselectfromdifferentvideo sourcesthatmaybeconnectedto
yourmonitor.
(a)VGAinput(b)DVIinput(c)HDMIinput
Asyou cyclethroughthesourcesyou will seethefollowingmessageson righttop
sideofscreentoindicatecurrentlyselectedinputsource.Itmaytake1or2
secondsfortheimagetoappear.
VGAorDVIorHDMI
IfeitherVGAorDVIinputisselected,buttheVGAandDVIcablesarenotcon-
nected,afloatingdialogboxindicates:
“NoCableConnect”or“NoSignal”

EN-14
Main
Menu
icon
Sub
Menu
icon
Sub
Menu
item Description
N/A Usermode Userdefined.Settingscanbefine-tunedto
suitanysituation
N/A Textmode Optimalbalanceofbrightness and contrast preventeyestrain. Themost comfortableway
toreadonscreentext
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
access thescenariomodes
Step2:Press“ “or“ ”toselectthemode
Step3:Press“AUTO“Keytoconfirmthemodeand runAutoAdjust.
Featuresand Benefits

EN-15
Adjusting the OSDsettings
--------------------------------------------------------------------
Note: Thefollowing contentisforgeneral reference only.Actual
productspecificationsmayvary.
TheOSDcanbeusedforadjusting thesettingsofyourLCDMonitor.
Press the MENU keytoopentheOSD. You canusetheOSD toadjust the
picturequality,OSDposition and general settings.Foradvancedsettings,
pleaserefertofollowing page:
Adjusting thepicture quality
1Press the MENU keytobring up the OSD.
2 Using the / keys,select Picture from the OSD. Thennavigateto
thepicture elementyou wishtoadjust.
3Use the / keystoadjust the sliding scales.
4ThePicturemenu canbeusedtoadjust thecurrentBrightness,Contrast,
ColourTemp,AutoConfigand otherimage-relatedqualities.

EN-16
AdjustingtheOSDposition
1Press the MENU keytobring up the OSD.
2 Using thedirectional keys,select OSD from the on screendisplay.
Thennavigatetothefeatureyou wishtoadjust.

EN-17
Adjusting thesetting
1Press the MENU keytobring up the OSD.
2 Using the / keys, select Setting from the OSD. Thennavigate to
thefeatureyou wishtoadjust.
3TheSetting menu canbeusedtoadjust thescreenMenu Languageand
otherimportantsettings.

EN-18
Productinformation
1Press the MENU keytobring up the OSD.
2 Using the / keys,select Information from the OSD. Thenthe
basic information ofLCD monitorwill show up forcurrentinput.

EN-19
(VGAMode)
TROUBLESHOOTING
BeforesendingyourLCDmonitorforservicing,pleasecheckthetrouble-
shootinglist belowtoseeifyoucanself-diagnosetheproblem.
Problems CurrentStatus Remedy
NoPicture
LEDON · Using OSD,adjustbrightness andcontrast
tomaximumorresettotheirdefault
settings.
LEDOFF · Checkthepowerswitch.
· CheckifAC powercord isproperly
connected tothemonitor.
LEDdisplays
ambercolor · Checkifvideosignalcableisproperly connected atthe back ofmonitor.
·Checkifthepowerofcomputersystemis
ON.
Abnormal
Picture
Unstable
Picture ·Checkifthespecificationofgraphics adapterand monitorisincompliance
whichmaybe causing the inputsignal
frequencymismatch.
Displayis
missing,center
shift,ortoo
small ortoo
largein display
size
·Using OSD,adjustRESOLUTION,CLOCK,
CLOCK-PHASE,H-POSITIONand V-
POSITIONwith non-standardsignals.
·Using OSD,in caseofmissing full-screen
image,please selectotherresolution or
otherverticalrefresh timing.
·Waitforafewsecondsafteradjusting the
sizeofthe imagebefore changing or
disconnecting thesignalcableorpowering
OFFthe monitor.
Abnormal
Sound
(OnlyAudio-
Inputmodel)
(Optional)
Nosound,or
sound levelis
too low
· Checktheaudio cablewiththe host PCis
connected.
· Checkifthevolume setup ofthe host PCis
inminimumposition and tryto raise the
volumelevel.