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.

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Control Explanation
SetupMenu displaysthe menu shownbelow:
Language Select allowsthe usertochoosethe language used inthe menusand
controlscreens.
Resolution Noticeadvisesthe optimal resolutiontouse.
OSDPosition allowsthe usertomovethe OSDmenusand controlscreens.
OSDTimeout setsthe lengthoftimethe OSDscreen isdisplayed.Forexample,
witha “15 second”setting,if acontrolisnot pushed within15 seconds, the
displayscreen disappears.
OSDBackground allowsthe usertoturnthe OSDbackground OnorOff.
MemoryRecall returnsthe adjustmentsback tofactory settingsifthe displayis
operating inafactory Preset Timing Mode listed inthe Specificationsofthis
manual.
Exception:Thiscontroldoesnot affect changesmade withthe UserColor
control,Language SelectorPowerLock setting.

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4. CircuitDescription
ISPInstruction
1Thetool forISP
1) Ani486 (orabove)personalcomputerorcompatible.
2) Microsoft operation systemWindows95/98/2000/XP.
3) “ISP_Tool V4.4.1.0”program
4) SoftwareISPSNAlignmentkits
The kitcontents:
a) ISP BOARDx1
b) Printercablex1
c) VGACABLEX1
2ConnecttheISPboardas follow:
3Theprocess ofISPwriteisas follows:
a. Double-click running the programasfollows:

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b. Select sure, Click icon,searchthe program
”VA1616W-TSUM16AWR-CMOM156B1L01-L11G-V103a-081015-DE6F.bin”and clicksave:

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C. Click icon,then click . If it burnssuccessfully, itwillshowasthe followpicture:

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DDC Instruction
1General
DDC DataRe-programming
Incasethe mainEEPROMwithSoftwareDDC whichstoreallfactory settingswerereplaced becauseadefect,
repaired monitor’the serial numbershavetobe re-programmed.
It isadvised tore-soldered the mainEEPROMwithSoftwareDDC fromthe oldboardontothe newboardif
circuitboardhavebeen replaced,inthiscasethe DDC datadoesnot need tobe re-programmed.
Additionalinformation about DDC (DisplayDataChannel)maybe obtained fromVideo ElectronicsStandards
Association (VESA).Extended DisplayIdentification Data(EDID)information maybealsoobtained from
VESA.
1. Ani486 (orabove)personalcomputerorcompatible.
2. Microsoft operation systemWindows95/98/2000/XP.
3. “PORT95NT.exe, WinDDC_ setup”program.
4. SoftwareOSDSNAlignmentkits
The kitcontents:
a)OSDSNBOARD x1
b)Printercablex1
c) VGAcablex1
d)Digital cablex1
e)12VDC powersource
2ConnecttheDDC board
Connect tothe
PCLPT
Whenyou writeanalog
EDID, Connectthisport
tothe VA1616W-6’VGA
port
1Connect tothe

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3Theprocess ofanalogDDC writeisas follow:
Double-click appearasfollowFigs：
Press “program”,it willshow “PASS”,itmeansdownloadOK.
Note:Theway ofdigital DDC writeisthesame as analog DDCwrite.

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5.AdjustmentProcedure
1.All Modes Reset
You shoulddo “AllModelReset”(RefertoChap 3.HotKeysforFunction Controls)first. Thisaction
willallowyou toeraseallend-user’ssettingsand restorethe factory defaults.
2.Auto ImageAdjust
TheAutoAdjustisaimedtoofferabestscreen qualitybybuilt-in ASIC.Foroptimumscreen
quality,theuser has toadjusteach function manually.
A.Turnthe computerand LCD monitoron.
B. Press the ‘Auto’button on monitorkeypad toAutoAdjust.
C.The LCD monitorwillstartthe AutoAdjust process automaticallyand run for10 consecutive
seconds, during whichtimeyou willnoticetheimage change.
3. Firmware
TestPatten:BurninModel(Refer to Chap3. HotKeys forFunctionControl)
-Make sure theF/Wisthelatestversion.
4. DCC
Test Patten:EDIDprogram
-Make sure itcanpass testprogram.
5. WindowShutDown
TestSignal:1280*1024@60Hz
TestPattern:
Checkered Pattern Every OnePixel(50%Green &50%Blue)
InspectionItem:Flicker,Mura
6. WindowBG
TestSignal:1280*1024@60Hz
TestPattern:
Window standard pattern
InspectionItem:LineDefect,FunctionDefect&Mura
7. 25 Gray
TestSignal:1280*1024@60Hz
TestPattern:

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Full Screen 25%White(Gray)
InspectionItem:Particle,LineDefect&Mura
8. 50 Gray
TestSignal:1280*1024@60Hz
TestPattern:
Full Screen 50%White(Gray)
InspectionItem:BrightDot, Particle,LineDefect&Mura
9. WhiteBox
TestSignal:1280*1024@60Hz
TestPattern:
Window standard pattern
InspectionItem:Particle,LineDefect,Power,ImageRemain &Mura
10. Black Box
TestSignal:1280*1024@60Hz
TestPattern:
Window standard pattern
InspectionItem:BrightDot,LineDefect&Power
11. RED
TestSignal:1280*1024@60Hz
TestPattern:
Full Screen Red
InspectionItem:BrightDot, Partial &LineDefect

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12. Green
TestSignal:1280*1024@60Hz
TestPattern:
Full Screen Green
InspectionItem:BrightDot, Partial &LineDefect
13. Blue
TestSignal:1280*1024@60Hz
TestPattern:
Full Screen Green
InspectionItem:BrightDot, Partial &LineDefect
14. Gray_Scale_0-100_V64
TestSignal:1280*1024@60Hz
TestPattern:
Vertical 64 (256)Gray Scale(Right Left From0to 100%White)
InspectionItem:LineDefect&FunctionDefect
15. FunctionTestDisplay pattern
Item
Pattern Description Remark
1 Gray_Scale_0-100_V Vertical 64 (256)GrayScale(右→左
From0
to100% White) Figure1
2 Gray_Scale_0-100_H Horizontal 64 (256)GrayScale(上→下
From
0to100% White) Figure2
3 Black FullScreen Black Figure3
4 Red FullScreen 50% Red Figure4
5 Green FullScreen 50% Green Figure5
6 Blue FullScreen 50% Blue Figure6
7 White FullScreen White Figure7
8 Black_Tile Black TileUnderWhiteBackground Figure8

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Figure1 Figure2
Figure5
Figure4
Figure6
Figure3
Figure5