Acer X225HQL User manual

TABLE OFCONTENTS
SpecialnotesonLCDmonitors..................................................1
Informationforyoursafetyandcomfort.....................................2
Unpacking....................................................................................5
Attaching/Removingthestand....................................................6
Screenpositionadjustment.........................................................6
Connectingthepowercord.........................................................7
Safetyprecaution.........................................................................7
Cleaningyourmonitor.................................................................7
Powersaving...............................................................................8
DDC.............................................................................................8
Poweradaptor...............................................................8
ConnectorPinAssignment..........................................................9
StandardTimingTable..................................................................11
Installation.....................................................................................12
Usercontrols..................................................................................13
Troubleshooting............................................................................19

EN-1
SPECIALNOTES ONLCD MONITORS
ThefollowingsymptomsarenormalwithLCDmonitoranddonotindicateaprob-
lem.
NOTES
•Duetothenatureofthefluorescentlight,thescreenmayflickerduringinitial
use.TurnoffthePowerSwitchandthenturnitonagaintomakesurethe
flickerdisappears.
•Youmayfindslightlyunevenbrightnessonthescreendependingonthedesktop
patternyouuse.
•TheLCDscreenhaseffectivepixelsof99.99%ormore.Itmayincludeblem-
ishesof0.01%orlesssuchasamissingpixelorapixellitallofthetime.
•DuetothenatureoftheLCDscreen,anafterimageofthepreviousscreenmay
remainafterswitchingtheimage,whenthesameimageisdisplayedforhours.
Inthiscase,thescreenisrecoveredslowlybychangingtheimageorturning
off thePowerSwitchforhours.

EN-2
Informationforyoursafetyand comfort
Safetyinstructions
Readtheseinstructionscarefully.Keepthisdocument forfuturereference.Followall warnings
andinstructionsmarkedontheproduct.
CAUTIONforaccessibility
Besurethatthepoweroutletyouplugthepowercordintoiseasilyaccessibleandlocatedas
closetotheequipment operator aspossible.Whenyouneedtodisconnectpowertothe
equipment,besuretounplugthepowercordfromtheelectricaloutlet.
Warnings
•Donotusethisproductnearwater.
•Donotplacethisproductonanunstablecart,standortable.Iftheproductfalls,it
couldbeseriouslydamaged.
•Slotsandopeningsareprovidedforventilationtoensurereliableoperationofthe
productandtoprotectit fromoverheating.Theesopeningsmustnotbeblockedor
covered,Theopeningsshouldneverbeblockedbyplacingtheproductona
bed,sofa,rugorothersimilarsurface.Thisproductshouldneverbeplacednearor
overaradiatororheatregister,orinabuilt-in installationunlessproperventilationis
approved.
•Neverpushobjectsofanykindintothisproductthroughcabinetslotsastheymay
touchdangerousvoltagepointsorshort-outpartsthatcouldresultinafireor
electricshock.Neverspillliquidofanykindontoor intotheproduct.
•Toavoiddamageofinternalcomponentsandtoprevent batteryleakage,donot
placetheproductonavibratingsurface.
•Neveruseitundersporting,exercising,or anyvibratingenvironment which
willprobablycauseunexpectedshortcurrentordamagerotordevices,HDD.
Opticaldrive,andevenexposureriskfromlithiumbatterypack.
Safelistening
Followtheseinstructions,suggestedbyhearingexperts,toprotectyourearing.
•Graduallyincreasethevolumeuntilyoucanhearitclearlyandcomfortablyand
without distortion.
•Aftersettingthevolumelevel,donotincreaseitafteryourearsadjust.
•Limittheamount oftimelisteningtomusicathighvolume.
•Avoidturningupthevolumetoblockoutnoisysurroundings.
•Turnthevolumedownifyoucanhearpeoplespeakingnearyou.

EN-3
Productservicing
Donotattempttoservice thisproductyourself,asopeningor removingcoversmayexpose
youtodangerousvoltagepointsor otherrisks.Referallservicingtoqualifiedservice
personnel.
Unplugthisproductfromthewalloutletandreferservicingtoqualifiedservicepersonnel
when:
•thepowercordorplugisdamaged,cutorfrayed
•liquidwasspilledintotheproduct
•theproductwasexposedtorain or water
•theproducthasbeendroppedorthecasehasbeendamaged
•theproductexhibitsadistinctchangein performance,indicatinganeedforservice
•theproductdoesnotoperatenormallyafterfollowingtheoperatinginstructions
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Note:Adjustonlythosecontrolsthatarecoveredbytheoperatinginstructions,
sinceimproperadjustment ofothercontrolsmayresultindamageandwill often
requireextensiveworkbyaqualifiedtechniciantorestoretheproducttonormal
condition.
LCDPixelStatement
TheLCDunitisproducedwithhigh-precisionmanufacturingtechniques.Nevertheless,some
pixelsmayoccasionallymisfireor appearasblackor reddots.Thishasnoeffectonthe
recordedimageanddoesnotconstituteamalfunction.
Tipsandinformationforcomfortableuse
Computerusersmaycomplainofeyestrainandheadachesafterprolongeduse.Usersare
alsoatriskofphysicalinjuryafterlonghoursofworkingin front ofacomputer.Longwork
periods,badposture,poorworkhabits,stress,inadequateworkingconditions,personal
healthandotherfactorsgreatlyincreasetheriskofphysicalinjury.
Incorrectcomputerusagemayleadtocarpaltunnelsyndrome,tendonitis,tenosynovitisor
othermusculoskeletaldisorders.Thefollowingsymptomsmayappearinthehands,wrists,
arms,shoulders,neckorback:
•numbness,oraburningortinglingsensation
•aching,sorenessortenderness
•pain,swellingorthrobbing
•stiffnessortightness
•coldness orweakness
Ifyouhavethesesymptoms,oranyotherrecurringor persistentdiscomfortand/orpain
relatedtocomputeruse,consultaphysicianimmediatelyandinformyourcompany’shealth
andsafetydepartment.
Thefollowingsectionprovidestipsformorecomfortablecomputeruse.
Findingyourcomfortzone
Findyourcomfortzonebyadjustingtheviewingangleofthemonitor,usingafootrest,or
raisingyoursittingheighttoachievemaximumcomfort.Observethefollowingtips:
•refrain fromstayingtoolongin onefixedposture
•avoidslouchingforwardand/orleaningbackward
•standupandwalkaroundregularlytoremovethestrainonyourlegmuscles

EN-4
•takeshortreststorelaxyourneckandshoulders
•avoidtensingyourmusclesor shruggingyourshoulders
•install theexternaldisplay,keyboardandmouseproperlyandwithincomfortable
reach
•ifyouviewyourmonitormorethanyourdocuments,placethedisplayatthecenter
ofyourdesktominimizeneckstrain
Takingcareofyourvision
Longviewinghours,wearingincorrectglassesorcontactlenses,glare,excessiveroom
lighting,poorlyfocusedscreens,verysmalltypefacesandlow-contrastdisplayscouldstress
youreyes.Thefollowingsectionsprovidesuggestionsonhow toreduceeyestrain.
Eyes
•Restyoureyesfrequently.
•Giveyoureyesregularbreaksby lookingawayfromthemonitorandfocusing
onadistantpoint.
•Blinkfrequentlytokeepyoureyesfromdryingout.
Display
•Keepyourdisplayclean.
•Keepyourheadatahigherlevelthanthetopedgeofthedisplaysoyoureyespoint
downwardwhenlookingatthemiddleofthedisplay.
•Adjustthedisplaybrightness and/or contrasttoacomfortablelevelfor enhancedtext
readabilityandgraphicsclarity.
•Eliminateglareandreflectionsby:
•placingyourdisplayin suchawaythatthesidefacesthewindoworanylight
source
•minimizingroomlightbyusingdrapes,shadesorblinds
•usingatasklight
•changingthedisplayviewingangle
•usingaglare-reductionfilter
•usingadisplayvisor,suchasapiece ofcardboardextendedfromthedisplaytop
frontedge
•Avoidadjustingyourdisplaytoanawkwardviewingangle.
•Avoidlookingatbright light sources,suchasopenwindows,forextendedperiods
oftime.
Developinggood workhabits
Developthefollowingworkhabitstomakeyourcomputerusemorerelaxingandproductive:
•Takeshortbreaksregularlyandoften.
•Performsomestretchingexercises.
•Breathefreshairasoftenaspossible.
•Exerciseregularlyandmaintain ahealthybody.
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Warning!Wedonotrecommendusingtheproductonacouchorbed.Ifthisis
unavoidable,workforonlyshortperiods,takebreaksregularly,anddosome
stretchingexercises.
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For moreinformationandhelpin recycling,pleasevisit thefollowingwebsites:
Worldwide:
http://www.acer-group.com/public/Sustainability/sustainability01.htm
http://www.acer-group.com/public/Sustainability/sustainability04.htm

EN-5
•LCD Monitor
UNPACKING
Please check the following items are present when you unpack the box, and
save the packing materials in case you will need to ship or transport the
monitor in future.
•AC Power Cord •D-Sub Cable
(Optional)
•Quick Start Guide
•DVI Cable
(Optional)
•Power adaptor

EN-6
Attaching /Removing theStand
SCREENPOSITIONADJUSTMENT
Inodertooptimizethebestviewingposition,pleaseastheshownin thefigure
below:
Youcanadjustthetiltofthemonitorandstandbyusingbothofyourhands.
Adjustableangles:to
--------------------------------------------------------------------
Note: Removethemonitorandmonitorstandfromitspackaging.
Carefullyplace themonitorface-downonastablesurface andwith
usingaclothtoavoidscratchingthescreen.
Install:
Placethemonitorwithstandin45-
80 degreesbeforeinsertingtheleft
firstandenteringtherightside.As
thefollowingorderandindication.
Remove:
Compress therearcoverbetweenthe
hingelinebeforepullingpowerfully
rightsideandtheleftnaturally
removed.
12
11
31
1
1
3
1

EN-7
CONNECTING THEPOWERCORD
•Checkfirsttomakesurethatthepowercordyouuseisthecorrecttype
requiredforyourarea.
•Thismonitorhasauniversalpowersupplythatallowsoperationin either100/
120VACor220/240 VACvoltagearea.Nouser-adjustmentisrequired.
•PlugthepoweradaptorcordtotheDCInletonmonitorfirst,thenplugone
endofpowercordtopoweradaptorACinletandfittheotherendtoproper
ACoutlet.lugoneendofthepowercordtotheACInlet,pluganotherendtoa
properACoutlet.
•Forunitusingat120 VAC:
UseaULListedCordSet,TypeSVTwireandplugrated10 A/125V.
•Forunitusingat220/240 VAC(outsideofU.S.):
UseaCordSetconsistingofH05VV-Fcordandplugrated10 A,250V.The
cordsetshouldhavetheappropriatesafetyapprovalsforthecountryinwhich
theequipmentwill beinstalled.
SAFETYPRECAUTION
•Avoidplacingthemonitor, oranyotherheavy object,onthepowercordto
avoiddamagetothecable.
•Donotexposethemonitortorain,excessivemoisture,ordust.
•Donotcovertheventilationslotsoropeningsofthemonitor.Always putthe
monitorin aplace wherethereisadequateventilation.
•Avoidplacingthemonitoragainstabrightbackgroundorwheresunlightor
otherlightsourcesmayreflectontheface ofthemonitor.Place themonitor
justbeloweyelevel.
•Handlewithcarewhentransportingthemonitor.
•Refrain fromgivingshockorscratchtothescreen,asscreenisfragile.
CLEANING YOURMONITOR
Pleasecarefullyfollowthebelowguidelineswhencleaningthemonitor.
•Alwaysunplugthemonitorbeforecleaning.
•Useasoftclothtowipethescreenandcabinetfrontandsides.

EN-8
Powersaving
ThemonitorwillbedrivenintoPowerSaving”modebythecontrolsignalfromthe
displaycontroller,asindicatedbytheamber-colorpowerLED.
Thepowersavingstateswill bekeptuntil acontrolsignalhasbeendetectedor
thekeyboardormouseisactivated.Therecovery timefromActiveOFFstate
backtoONstateisaround3seconds.
DDC
Tomakeyourinstallationeasier,themonitorisabletoPlugandPlaywithyour
systemifyoursystemalsosupportsDDCprotocol.TheDDC(DisplayData
Channel)isacommunicationprotocolthroughwhichthemonitorautomatically
informsthehostsystemaboutitscapabilities,forexample,supported
resolutionsandcorrespondingtiming.ThemonitorsupportsDDC2Bstandard.
State LEDLight
ON Blue
PowerSaving
Mode Amber
PowerAdaptor
Yourdeviceusesoneofthefollowingpowersupplies.
Object/Part
No. Manufacturer/Trademark
Type/Model
DELTA ADP-30MHB
Power
adaptor HIPRO HP-A0301R3

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