ViewSonic VA1616W-6 VS12018 User manual

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ViewSonicVA1616W-6
ModelNo. VS12018
16 ColorTFTLCD Display
(Manufacture date:NOV.2008)
ServiceManual

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Copyright
Copyright 2008 byViewSonicCorporation.Allrightsreserved.No partof thispublication maybe reproduced,
transmitted, transcribed,stored inaretrievalsystem,ortranslated intoanylanguage orcomputerlanguage,in any
formorbyanymeans,electronic,mechanical,magnetic,optical,chemical,manualorotherwise,withoutthe prior
written permission ofViewSonicCorporation.
Disclaimer
ViewSonicmakesno representationsorwarranties, eitherexpressed orimplied, withrespect tothe contentshereof
and specificallydisclaimsanywarrantyofmerchantabilityorfitness foranyparticularpurpose.Further,ViewSonic
reservesthe righttorevisethispublication and tomakechangesfromtimetotimeinthe contentshereofwithout
obligation of ViewSonictonotifyanyperson ofsuchrevision orchanges.
Trademarks
Optiquest isaregistered trademarkofViewSonicCorporation.
ViewSonicisaregistered trademark of ViewSonicCorporation.
Allothertrademarksused withinthisdocumentarethe propertyoftheirrespectiveowners.
Productdisposalatendofproductlife
The lampinthisproduct containsmercury. Pleasedisposeofinaccordancewithlocal, stateorfederal laws.
Revision History
Revision
SM Editing Date ECR Number DescriptionofChanges Editor
InitialRelease
T67MRHDD2WV3N2
A01 NOV.08
T67MRHDD2WVSNND

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TABLEOFCONTENTS
1. PrecautionsandSafetyNotices..........................................................................................4
2. Specification.......................................................................................................................5
3. FrontPanel FunctionControl Description .......................................................................7
4. CircuitDescription.............................................................................................................12
5.AdjustingProcedure..........................................................................................................17
6.TroubleShooting Flow Chart............................................................................................22
7. Block Diagrams.................................................................................................................24
8. SchematicDiagrams........................................................................................................25
9. PCB LayoutDiagrams......................................................................................................33
10. ExplodedDiagramAndSparePartsList........................................................................37
11. RecommendedSparePartsList....................................................................................39
12. DifferentPartsList...........................................................................................................50

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1. PrecautionsandSafetyNotices
1.1safetyprecautions
Thismonitorismanufactured and tested on ag
round principlethat auser’ssafetycomesfirst.However,improperuse
orinstallation maycausedamage tothemonitoraswellasthe user.Carefullygo overthefollowing WARNINGSbefore
installing and keep thisguide handy.
WARNINGS
Thismonitor
shouldbe operated onlyatthe correctpowersourcesindicated on the labelon the rearend ofthe monitor.
Ifyou’reunsureofthe powersupplyinyourresidence,consult you localdealerorpowercompany.
Useonlythe specialpoweradapterthatcomeswiththismonitorforpowerinput.
Do not try torepairthe monitoryourselfasit containsno user
-serviceableparts.Thismonitorshouldonlybe repaired by
aqualified technician.
Do notremovethe
monitorcabinet. Thereishigh-voltage partsinside thatmaycauseelectricshock tohuman bodies,
even when the powercordisunplugged.
Stopusing the monitorif thecabinetisdamaged.Haveitchecked byaservicetechnician.
Putyourmonitoro
nlyinaclean, dryenvironment. If it getswet, unplug the powercableimmediatelyand consult your
servicetechnician.
Alwaysunplug the monitorbeforecleaning it.Clean the cabinetwithaclean,dry cloth.Applynon
-ammoniabased
cleanerontothe cl
oth, not directlyontothe glass screen.
Keep the monitorawayfrommagneticobjects,motors,TVsets, and transformer.
Do notplaceheavyobjectson the monitororpowercord.
1.2Productsafetynotice
Manyelectrical and mechanicalpartsinthis
chassishavespecialsafetyvisualinspectionsand the protection afforded
bythemcannotnecessarilybe obtained byusing replacementcomponentsrated forhighervoltages, wattage,etc.
Beforereplacing anyofthesecomponentsread the partslistinthismanualcarefully. The useofsubstitutereplacement
partswhichdo not havethe samesafetycharacteristicsasspecified inthe partslistmaycreateshock,fire,orother
hazards.
1.3Service notes
Whenreplacing partsorcircuit boards, clampthe lead wiresaroundterminalsbeforesoldering.
Whenreplacing ahigh wattage resistor(morethan 1Wofmetal oxide filmresistor) incircuitboard, keep the resistor
about 5mm awayfromcircuit board.
Keep wiresawayfromhigh voltage, high temperaturecomponentsand sharpedges.
Keep wiresintheiroriginal position soastoreduceinterference.
Usage ofthisproduct pleaserefertoalsouser’smanual.

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2. Specification
2.1Productspecifications
Product Name VA1616w
OracleP/N VA1616W-6
ModelNumber VS12018
OSDLanguages: 11
English,French,German,Italian, Spanish,
Finnish, Japanese, Russian Simplified Chinese,
TraditionalChinese, Korean
TFTLCD Panel and Model # 1st panel:CMOA156B1
Scalar MSTTSUM1PFR-LF
Input Signal Analog x1
SyncCompatibility SeparateSync
Adapter InternalPowerBoard
PowerCable Yes,
refertoAPPENDIXB:PowerCable
Analog Cable(1.8m,black), withPC2001 and HotPlug
Detect &DDC Yes (Detached cable; refertheAppendixA)
DVI-DCable(1.8m,black)withPC2001 No
AudioCable(1.8m, black)withPC2001 No
MICCable(1.8m,black)withPC2001 No
USB Cable(V2.0) No
ViewSonicCD Wizard
Arabic,English,Finnish, Spanish, German,
Italian, Japanese, Swedish, Polish, Korean,
Portuguese, Russian,Turkish, French,Czech,
Hungarian, Simplified Chinese,Traditional
Chinese. Greek, Dutch,Bulgarian, Croatian,
Romanian, Serbian, Slovak, Slovenian
ViewSonicQuickStartGuide One Page
PerfectSuiteCD No
Screen ProtectorMylar Yes
Foot Protectorplastic No
BaseassemblyProcedureCard Yes
Energystart sticker Yes
VistaInstall Card Yes
DCR Sticker ForRegion code =G/P/Eunitsonly
ServiceInsert ForRegion code =Munitsonly
WarrantyCard ForRegion code =Gunitsonly
Carton Sticker ForRegion code =Gunitsonly
PE bag ofCarton N/A
Manufactureaddress sticker ForRegion code =Gunitsonly

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2.2Interface description
1 5
610
11 15
D-SUB connectorpinassignment
PinNumber
PinFunction
1 Red video input
2 Green videoinput
3 Blue videoinput
4 NoConnection
5 Ground
6 Red video ground
7 Green videoground
8 Blue videoground
9 +5V
10 H/Vsyncground
11 Noconnection
12 (SDA)
13 Horizontalsync(Compositesync)
14 Verticalsync
15 (SCL)

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3. FrontPanelFunction Control Description
“MainMenu Controls”
MainMenu
withOSDcontrols
FrontControlPanel
shownbelowindetail
Displaysthe control screen
forthe highlighted control.
Alsotogglesbetween two
controlson somescreens.
Alsoashortcut toAuto
Image Adjust.
Displaysthe
MainMenu or
exitsthe
controlscreen
and saves
adjustments.
Powerlight
Blue =ON
Orange =PowerSaving
StandbyPower
On/Off
Scrollsthrough
menu optionsand
adjuststhe
displayed control.
Alsoashortcut to
displaythe
Contrast
adjustmentcontrol
screen.

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Dothefollowingtoadjustthedisplaysetting:
1. Todisplaythe MainMenu, press button[1].
NOTE: AllOSDmenusand adjustment screensdisappearautomaticallyafterabout 15
seconds. Thisisadjustablethrough the OSDtimeoutsettinginthe setup menu.
2. Toselect acontroltoadjust, press ortoscrollup ordowninthe MainMenu.
3. Afterthe desired controlisselected, press button [2].Acontrol screen likethe one shown
belowappears.
The line atthe bottomofthe screen shows
the currentfunctionsof buttons1and 2:
Exit orselect the Brightness control.
4. Toadjust thecontrol, press the up ordownbuttons.
5. Tosavethe adjustmentsand exit themenu, press button [1] twice.
Thefollowing tipsmay help youoptimizeyourdisplay:
•Adjust the computer'sgraphicscardsothatit outputsa1366 x768 @60Hzvideo signalto
the LCD display.(Lookforinstructionson “changing therefreshrate”inthe graphicscard's
userguide.)
•If necessary, makesmalladjustmentsusing H. POSITIONand V.POSITIONuntilthe
screen image iscompletelyvisible. (The blackborderaround the edge of the screen should
barelytouchthe illuminated “activearea”of the LCD display.)

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Main Menu Controls
Adjust the menu itemsshownbelowbyusing the up and downbuttons.
Control Explanation
Auto ImageAdjust automaticallysizes, centers, and fine tunesthe video signal
toeliminatewaviness and distortion. Press the [2] buttontoobtainasharper
image.
NOTE: AutoImage Adjust workswithmost commonvideo cards. Ifthis
functiondoesnot work on yourLCD display,then lowerthe video refreshrate
to60 Hzand set theresolution toitspre-setvalue.
Contrast adjuststhe differencebetween the image background (black level)
and the foreground (whitelevel).
Brightness adjustsbackground black level of the screen image.
ColorAdjust providesseveral coloradjustmentmodes,including preset color
temperaturesand aUserColormode whichallowsindependent adjustment of
red (R), green (G),and blue (B).The factorysetting forthisproductis6500K
(6500 Kelvin).
sRGB-Thisisquicklybecoming the industry standardforcolormanagement,
withsupport being included inmanyof the latest applications. Enabling this
setting allowsthe LCD displaytomoreaccuratelydisplaycolorsthe waythey
wereoriginallyintended. Enabling the sRGBsetting will causethe Contrast and
Brightness adjustmentstobe disabled.
9300K-Addsblue tothe screen image forcoolerwhite(used inmost office
settingswithfluorescentlighting).
6500K-Addsred tothe screen imageforwarmerwhiteand richerred.
5400K-Addsgreen tothe screen image foradarkercolor.
User Color Individualadjustmentsforred (R), green (G), and blue (B).
1. Toselect color(R,G orB) press button [2].
2. Toadjust selected color,press and.
Important: If you selectRECALL fromtheMainMenu whenthe productisset
toaPresetTiming Mode, colorsreturntothe 6500Kfactory preset.

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Control Explanation
Information displaysthe timing mode (video signal input)coming fromthe
graphicscardinthe computer, theLCD model number,the serial number, and
the ViewSonic®websiteURL.See yourgraphicscard’suserguide for
instructionson changing the resolution and refreshrate(verticalfrequency).
NOTE: VESA1366 x768 @ 60Hz(recommended)meansthat the resolution is
1366 x768 and the refreshrateis60 Hertz.
ManualImageAdjust displaysthe ManualImage Adjust menu.
H./V.Position (Horizontal/Vertical Position)movesthe screen image left or
right and up ordown.
H. Size(HorizontalSize)adjuststhe widthofthe screen image.
Fine Tune sharpensthe focusbyaligningtextand/orgraphicswithpixel
boundaries.
NOTE:Try AutoImage Adjustfirst.
Sharpnessadjuststhe clarityand focusofthe screen image.
Aspect ratioSelectsthe image sizefor4:3and fullscreen.
ECO Mode providesthe lowerpowerconsumption byreducing the brightness.
Standard: The defaultbrightness setting
Optimize: Decreasesthe brightness by25 %
Conserve:Decreasesthe brightness by50 %
NOTE:When the ECOMode isset to"Optimize"or"Conserve",the
Brightness, Contrast, and DynamicContrast cannot be adjusted.