Advantech PWS-1419 User manual

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PWS-1409/1419 User’sManual
PWS-1419/1409
9-slot 14.1”TFT LCD Portable Worstation
AdvantechPortableWorkstation
User’sManual

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PWS-1409/1419 User’sManual
Theinformation containedinthisdocumentisbelievedtobeaccurate.However,no
responsibilityisassumedforitsuse,norforanyinfringementsofpatentsorotherrights
ofthirdpartywhichmay resultfromitsuse.Thisinformation issubjecttochangewithout
anynotice.
SafetyInstructions
1.Read thesesafetyinstructionscarefully.
2.Keep thisUser'sManualforlaterreference.
3.DisconnectthisequipmentfromanyACoutletbeforecleaning.Useadampcloth.Donotuseliquidor
spraydetergentsforcleaning.
4.Forplug-inequipment, the poweroutletsocketmustbe located nearthe equipmentand mustbe
easilyaccessible.
5.Keep thisequipmentawayfromhumidity.
6.Putthisequipmenton areliablesurfaceduring installation.Dropping itorlet-tingitfall maycause
damage.
7.The openingson the enclosureareforairconvection.Protectthe equipmentfromoverheating.DO
NOTCOVERTHEOPENINGS.
8.Makesurethe voltage ofthe powersourceiscorrectbeforeconnecting the equipmenttothe power
outlet.
9.Position the powercordsothatpeoplecannotstep on it. Donotplaceanything overthe powercord.
10.All cautionsand warningson the equipmentshouldbe noted.
11.If the equipmentisnotused foralong time,disconnectitfromthe powersourcetoavoiddamage by
transientovervoltage.
12.Neverpouranyliquidintoan opening.Thismaycausefireorelectricalshock.
13.Neveropen the equipment. Forsafetyreasons,the equipmentshouldbe opened onlybyqualified
servicepersonnel.
14.If one ofthe following situationsarises,getthe equipmentchecked byservicepersonnel:
a.The powercordorplug isdamaged.
b.Liquidhaspenetrated intothe equipment.
c.The equipmenthasbeen exposed tomoisture.
d.The equipmentdoesnotworkwell,oryou cannotgetittoworkaccordingtothe user'smanual.
e.The equipmenthasbeen dropped and damaged.
f. The equipmenthasobvioussignsofbreakage.
The sound pressurelevelatthe operator'sposition according toIEC704-1:1982 isno more
than 70dB(A).
DISCLAIMER:Thissetofinstructionsisgiven according toIEC704-1.Advan-techdisclaimsall re
sponsibilityforthe accuracy ofanystatementscontained herein.

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PWS-1409/1419 User’sManual
Chapter2PWS-1409 Construction
1-1 Specification 7
1-2 Before You Start 8
1-3 Precautions 8
1-3-1 Power Connections 8
1-3-2 Non-Autosensing Power Supply 8
1-3-3 ATX Power Switch 8
1-3-4 Ventilation 9
1-3-5 Care for the LCD 9
1-4 Tools and Supplies Needed 9
1-5 Subassembly Contents 9
1-6 Parts Contents 9
1-6-1 Optional Slim FDD, CD ROM 10
1-6-2 Optional Slim FDD kit 10
1-6-3 Optional ROM Kit 10
1-7 Identifying Parts and Controls 11
1-7-1 Opening the Side Access Covers 11
1-7-1-a PWS1419 11
1-7-1-b PWS1409 11
1-7-2 Side View 12
1-7-2-a PWS1419 12
1-7-2-b PWS1409 12
1-7-3 Front View 13
1-7-3-a PWS1419 13
1-7-3-b PWS1409 14
1-8 Detaching the Keyboard 15
1-8-1 PWS1419 15
1-8-2 PWS1409 15
1-8-2-a The Standard Keyboard 16
.1-8-2-b The Optional Industrial Silicon Rubber Keyboard 16
Chapter1Getting Started
2-1 Opening The Chassis 17
2-1-1 Removing the Back Cover 17
2-1-2 Removing the Card Stabilizers 17
2-2 Identifying the Internal Parts 17
2-3 Removing the CD ROM Cage 18
2-4 Removing the Hard Driver and Slim Floppy Drive Cage 18
2-5 Installing the Backplane 18
2-6 Installing the Standoffs 18

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PWS-1409/1419 User’sManual
Chapter 4 Using The System Controls
Chapter3PWS-1409 Construction
2-7 Connecting the Power Connector 20
2-8 Installing the Slim CD ROM to the CD ROM Cage 20
2-9 Installing the CD ROM Cage 22
2-10 Installing Drives in the Drive Cage 22
2-11 Installing the Hard Drive 23
2-12 Installing the Slim Floppy Disk Drive 23
2-13 Installing the Drive Cage into the Case 25
2-14 Installing the SBC 26
2-14-1 Setting your SBC Jumpers 26
2-15 Installing the Add-on Cards 27
2-16 Installing the Card Stabilizers 27
2-17 Preparing to Start the System 28
2-17-1 Connecting the Video and Input Devices 28
2-17-2 Closing the Back Cover 29
3-1 Opening The Chassis 31
3-1-1 Removing the Back Cover 31
3-2 Removing the Card Stabilizers 31
3-3 Identifying the Internal Parts 31
3-4 Removing the Drive Cage 31
3-5 Installing the Backplane 32
3-5-1 Installing the Standoffs 32
3-6 Connecting the Power Connector 34
3-7 Installing the Drives to the Drive Cage 34
3-8 Insttalling the Driver Cage into the Case 36
3-9 Installing the SBC 37
3-9-1Setting your SBC Jumpers 37
3-10 Installing the Add-on Cards 38
3-11 Installing the Card Stabilizers 38
3-12 Preparing to Start the System 39
3-12-1 Connecting the Video and Input Devices 39
3-13 Closing the Back Cover 40

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PWS-1409/1419 User’sManual
AppendixA. Troubleshooting
4-1 Starting your System 42
4-1-1 Systems with ATX Power Supply 42
4-2 OSD Controls 43
4-2-1 Adjusting the OSD Parameters 43
4-3 Changing Filter for the internal Fan 43
4-3-1 PWS-1419 43
4-3-2 PWS-1419 44
A-1 Trouble Shooting Techniques 46
A-1-1 No screen after pressing front power switch 46
A-1-1-a Power supply fan not spinning: 46
A-1-1-b Power supply fan is spinning and LCD has no backlight 46
A-1-1-c Power supply fan is spinning and LCD has backlight and
power LED is on: 46
A-1-2 LCD screen shows garbage or bad characters or vertical
horizontal color lines or bar: 46
A-1-3 LCD screen works fine in Windows but acted funny when
running certain programs or games: 47
A-1-4 The display is not on the LCD center 47
A-2 Keyboard and pointing device not responding 47
AppendixB:LCDVIDEOController
B-1 Introduction 49
B-2 Safety Precautions 50
B-3Configuring Your Controller 50
B-3-1 LCD with TTL Interface 50
B-3-2 LCD wits LVDS Receiver Interface 50
B-4 OSD Controls 50
B-4-1 Adjusting the OSD Parameters 51

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PWS-1409/1419 User’sManual
1-1 Specification 7
1-2 Before You Start 8
1-3 Precautions 8
1-3-1 Power Connections 8
1-3-2 Non-Autosensing Power Supply 8
1-3-3 ATX Power Switch 8
1-3-4 Ventilation 9
1-3-5 Care for the LCD 9
1-4 Tools and Supplies Needed 9
1-5 Subassembly Contents 9
1-6 Parts Contents 9
1-6-1 Optional Slim FDD, CD ROM 10
1-6-2 Optional Slim FDD kit 10
1-6-3 Optional ROM Kit 10
1-7 Identifying Parts and Controls 11
1-7-1 Opening the Side Access Covers 11
1-7-1-a PWS1419 11
1-7-1-b PWS1409 11
1-7-2 Side View 12
1-7-2-a PWS1419 12
1-7-2-b PWS1409 12
1-7-3 Front View 13
1-7-3-a PWS1419 13
1-7-3-b PWS1409 14
1-8 Detaching the Keyboard 15
1-8-1 PWS1419 15
1-8-2 PWS1409 15
1-8-2-a The Standard Keyboard 15
.1-8-2-b The Optional Industrial Silicon Rubber Keyboard 15
Chapter1Getting Started

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PWS-1409/1419 User’sManual
Supportpassivebackplane formfactorplatforms.
14.1”High resolution colormatrixTFT LCD display
Built-inanalog todigitalVGAsignalconversion board
Add-on cardretention system.
Shock mountprotection forthe harddisk driver
Detachable104/105-keys keyboard(water-resistantoptional).
Built-inkeyboardpointing device.
Built-inspeakerwithamplifier
200WATXpowersupply(optionalDC powersupply)
Carrying casewithwheel.
Environment
Operating temperature:-8Cto60C,10-80%humidity
Storage temperature:-20Cto60C,5-95%humidity
Chapter1Getting Started
PWS-1409
Dimensions:15.7”/399mm (W)
13.2”/335mm(H)
10.4”/264mm (D)
Weight: 18lbsSKD;approx.22lbssystem
Dimensions&Weight
PWS-1419
Dimensions:16.6”/421mm (W)
12.1”/282mm(H)
9.1”/230mm(D)
Weight: 21lbsSKD;approx.26lbssystem
1-1GeneralFeatures
All aluminumconstructed chassis.(forPWS-1419 only)
Rubberbumperprotected corners.(forPWS-1419 only)
ABS plastichousing withaluminuminternalchassis.(forPWS-1409 only)
3mm Impact-resistantLCD screen w/tempered glass(forPWS-1419 only)

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PWS-1409/1419 User’sManual
1-2BeforeYou Start
Themajorcomponentofthesubassemblyisthechassis,whichcomes intwomod-
els—8x ISA/1CPUslotor4xPCI/ 4ISA/1CPUslotPassive Backplane.Thechassis
comes pre-assembledwithanactive matrixLCD,LCD controller,powersupply,
keyboard,ventilation fansand internalspeaker.To completethesystem,you mustadd a
systemboard,CPUand peripheraldevices.
Beforeadding thesedevices,itisimportanttofollowcertainbasicsafetyprecautions.You
shouldbecomefamiliarwiththe chassisbothexternallyand internally.And you shouldalso
havethe righttoolsavailabletoyou.
1-3 Precautions
1-3-1 Power Connections
The major component of the subassembly is the chassis, which comes in two models—8x
ISA/ 1 CPUslot or 4 x PCI/ 4 ISA/1 CPU slot Passive Backplane. The chassis comes pre-
assembled with an active matrix LCD, LCD controller, power supply, keyboard, ventilation fans
and internal speaker. To complete the system, you must add a system board, CPU and periph-
eral devices.
Use Supplied Power Cord
The subassembly is shipped with a power cord compatible with the AC wall outlet in your
region.
1-3-2 Non-Autosensing Power Supply
Before plugging in the power cord, examine the power supply to see if you have an
autosensing or non-autosensing power supply.
Autosensing power supplies automatically adjust to the AC constructed of metal and provide
front impact protection for outlet voltage. If your subassembly is shipped with a non-
autosensing power supply, there will be a voltage selector switch located near the AC power
connector. Make sure it’s set to the appropriate voltage setting for your power outlet.
1-3-3 ATX Power Switch
The power supply shipped with the ATX chassis may or may not have an ON/OFF switch. To
power up your system where the power supply has an ON/OFF switch, you must first press the
switch to the ON position and then press the ATX power up/down switch located on the front to
start your system.
The ATX power switch found on the front of the chassis DOES NOT turn off the AC
power. To remove AC power from your system, you must unplug the AC power
cord from the AC outlet or the chassis.

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PWS-1409/1419 User’sManual
1-3-4 Ventilation
The chassis comes with three intake fans and one power supply exhaust fan providing
cooling and air flow. When operating the system, never block any ventilation openings. Always
leave enough room around the chassis to allow adequate air flow.
1-3-5 Care for the LCD
The chassis comes with a pre-assembled active matrix LCD. Liquid crystal displays are
made of glass which will break or crack if mishandled. During system assembly, keep the
keyboard latched to the chassis. The keyboard housing is constructed of metal and provides
front impact protection for the LCD during transportation.
1-4 Tools and Supplies Needed
Before beginning your work, make sure you have the following tools and supplies available:
Ć #2 Phillips (cross head) screwdriver.
Ć An anti-static wrist strap (recommended).
1-5 Subassembly Contents
Ć The subassembly consists of,
Ć This subassembly guide.
Ć Chassis with pre-assembled LCD, LCD controller, power supply, cooling fans, internal
speaker and keyboard with integrated pointing device.
Ć Power cord.
Ć Carrycase.
Ć Parts for installing motherboard and drives.
Ć See Appendix for technical specifications.
1-6 Parts Contents
The subassembly parts kit contains the following hardware for installing boards and drives.
1. Round head screw 2Ö long (for securing CD ROM interface board)
2. Round head screw (for securing backplane on the standoff, interface board).
3. Metal washer (use with the flat head and round head screws for mounting the drives)
4. Insulating washer (when installing the motherboard use it with the round head screw 4).
5. Flat head screw (for securing hard driver).
6. Black round head screw (securing driver cage to side of case, CD ROM cage to the case)
7. Black flat screw (securing driver cage to the bottom of the case, back cover)
8. Round head screw 2.5Ö (for securing slim floppy disk)
9. Motherboard Standoff
10.Round head screw 2Ö short (for securing slim CD ROM)

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PWS-1409/1419 User’sManual
1-6-1OptionalSlimFDD,CD ROM
OptionalSlimFloppyDisk Kit
1.Floppydisk powercable
2.Floppyinterfaceboard
3.Floppydisk signalcable
(frominterfacetodisk)
4.Slimfloppydisk
1-6-2OptionalSlimCD ROMDisk
1.SlimCD ROMinterfaceboard
2.CD ROMpowercable
(interfacetopowersupply)
3.Audiocable
(interfaceboardtosound cardor
SBCAudioout)
4.SlimCD ROM
1-6-3OptionalSlimFDD +SlimCD ROMDisk
1.Floppydisk signalboard
(frominterfacetodisk)
2.Floppyinterfaceboard
3.PowercableforSlimfloppydisk and CD ROM.
(powersupplytoFloppydisk and slimCD ROM
4.Slimfloppydisk
5.Audiocable
(interfaceboardtosound cardorSBCAudioout)
6.SlimCD ROMinterfaceboard
7.SlimCD ROM

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PWS-1409/1419 User’sManual
The pinoutmaybe differentforotherbrand orversion ofCD ROM&floppydisk
Donotusethe CD ROMand floppyfromothersources.
1-7Identifying Partsand Controls
1-7-1 Opening the Side Access Covers
1-7-1-a PWS-1419
The side access coversprovide side impactprotection fortothe chassis.The access covers
mustbe opened toaccess the externaldrivebays and I/Oconnectors.
Turnthe thumbscrewinthe counterclockwisedirection toopen the access covers.Then swing
outtowardthe back.
The access coversarenotinterchangeable.When operating yoursystem,removeanyside
coverthatdoesnothaveventilation holestoallowadequateairflow.
1-7-1-b PWS-1409
The side access doorprovide side impactprotection for
the chassis.The access doormustbe opened toaccess
the I/Oconnectors.
Turnthe thumbscrewinthe counterclockwisedirection to
open the access covers.Theyswing outtowardthe back.

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PWS-1409/1419 User’sManual
1-7-2SideViews
1-7-2-aPWS-1419
Usethe photobelowtoidentifycomponentsand I/Oportsthatareaccessiblefromthe two
sidesofthe 1419Tchassis.The illustration showsthe externalconnectorsand componentsof
acompletelyassembled SBCsystem.Yoursubassemblyhasonlyknockoutholesinstead.
2.10 add-on cardslot
3.I/Oportknockouts.
4.Keyboardreleaselatches
5.VGAport&monitorconnector
6.Serialport.
7.PS/2keyboardportand Mouse
9. Internalspeakerconnector
10.Twointakefansw/Filter
11.SlimCD ROM
12.Powerswitch
13.ACpowerInputSocket
14.PowerFan
1.SlimFloppydisk.
1-7-2-bPWS-1409
I/Oport
knockouts.
VGAport&monitor
connector9add-on cardslot
(optional12)
Internalspeaker
connector
ACpowerInputSocket
PowerFan Powerswitch
Handlebar
ATXPowerswitch

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PWS-1409/1419 User’sManual
1-7-3FrontView
1-7-3-aPWS-1419
You access the frontpanelcontrolsbyfirstdisengaging
the keyboard.Disengage the keyboardfromthe latches
bysliding the latchtabson bothsidesofthe chassis
upwardsasshownand simultaneouslypull the top part
ofthe keyboardawayfromthe chassis.
The keyboardisstill hinged on the bottombylatchbolts.
Laydownthe keyboard.
Onthe frontside ofthe chassisyou’ll find the following
controlsand subassemblyelements:
1.PowerONLED(when on,indicates
powerdelivered tothe system)
2.IDEharddisk activityLED(when
blinking,indicatesdisk activityis
occurring).
3.On-screen-display(OSD)menu
controls.
4.Systemresetswitch(when pressed,
rebootsand initializesthe system.
5.ATXpowerswitch(powersthe system
up and down).
6.Keyboardlatchboltreleasepegs.
3intake
fansw/
Filter
resetswitch
3.5”
Floppy
disk.
Volume
Tone
CDROM
The CDROMison the right
side ofthe panel

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PWS-1409/1419 User’sManual
1-7-3-bPWS-1419
PushtheKeyboardLatchestocenter
Pull up the keyboardstand
You access the frontpanelcontrolsbyfirstdisengaging the keyboard.Disengage the keyboard
fromthe latchesbysliding the latchtabson the bottomsidesofthe keyboardtowardsthe
centerasshownand simultaneouslypull the top partofthe keyboardawayfromthe chassis.
The keyboardisstill hinged on the bottombylatchbolts.Laydownthe keyboard.
Onthe frontside ofthe chassisyou’ll find the following controlsand subassemblyelements:
PowerLED
HDDLED
TFTLCD
TouchPad
Keyboardlatches
KeyboardLEDIndicator
Anti-slipperRubberKnob
1-7-3-cOSDbutton on PWS-1409
The OSDbutton ison the left side ofthe panel,you havetopull up the panelfirsttosee the
buttons,pull downthe small doorand pull up the panelwiththe small baron the panel.
Pull outSmall door
Pull up the bar
OSDButtons
“Manual”“Select”
“+”“-“
keyboardstand

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PWS-1409/1419 User’sManual
1-8Detaching theKeyboard
1-8-1PWS-1419
1-8-1-aTheStandardKeyboard
The subassemblycomeswitheitherthe STAN-
DARD keyboard,amechanicalswitchkey-
boardwithan integrated pointing device,or
withan OPTIONALmembrane keyboard.
PointDevice
TouchPad
The subassemblycomeswithamechanicalswitchkeyboardwithan integrated touchpad
device.The signalcableisconcealinthe fillisterofthe keyboard,you havepull itup tocon-
nectthe connectorofthe SBC.
The keyboardisdetachable.Normallyit’s locked tothe
chassisbytwolatchbolts.You can detachthe keyboard
bysliding bothreleasepegstowardseachother,com-
pressing the latchboltsuntil theyslide outofthe slots.
Pull the keyboardawayfromthe chassisand release
the pegs.
1-8-1-bTheOptionalIndustrialsilicon
rubberKeyboard
The concealed cabletouchpad
1-8-2PWS-1409

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PWS-1409/1419 User’sManual
Chapter2PWS-1409TConstruction
2-1 Opening The Chassis 17
2-1-1 Removing the Back Cover 17
2-1-2 Removing the Card Stabilizers 17
2-2 Identifying the Internal Parts 17
2-3 Removing the CD ROM Cage 18
2-4 Removing the Hard Driver and Slim Floppy Drive Cage 18
2-5 Installing the Backplane 18
2-6 Installing the Standoffs 18
2-7 Connecting the Power Connector 20
2-8 Installing the Slim CD ROM to the CD ROM Cage 20
2-9 Installing the CD ROM Cage 22
2-10 Installing Drives in the Drive Cage 22
2-11 Installing the Hard Drive 23
2-12 Installing the Slim Floppy Disk Drive 23
2-13 Installing the Drive Cage into the Case 25
2-14 Installing the SBC 26
2-14-1 Setting your SBC Jumpers 26
2-15 Installing the Add-on Cards 27
2-16 Installing the Card Stabilizers 27
2-17 Preparing to Start the System 28
2-17-1 Connecting the Video and Input Devices 28
2-17-2 Closing the Back Cover 29

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PWS-1409/1419 User’sManual
2-1 Open the chassis
2-1-1 Removing the Back Cover
Face the back of the chassis. Remove all
screws as shown. There are 10 screws along
the perimeter of the back cover that holds the
back cover to the chassis.
Always power-down the system.
Always turn off any peripheral devices connected to the system.
Always unplug the AC power cord from the chassis.
Face the back of the chassis. Remove all the release screws as shown. There
are 10 screws along the perimeter of the back cover that secures it to the
chassis.
2-2Removing theCardStabilizers
The stabilizerisdesigned tosecurelyhold
downadd-on cardsintheirexpansion slots
withplastichold-downclips.The stabilizer
mustbe removed priortoadding boardsand
componentsinthe chassis.
Step 1.Removethe cardstabilizerrelease
screwsasshown.
Step 2.Removethe stabilizerand setthem
aside.
2-3 Identifying the Internal Parts
1.Powersupply
2.SlimCD ROMdriveholder(2pcs)
3.SlimFloppydriveholder
4. InternalCooling fan
5.LCD powerconnector(topower
supply)
5
4
2
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Chapter2PWS-1409TConstruction

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PWS-1409/1419 User’sManual
2-3Removing theCD ROMcage
Step 1.Removescrewsasshown(1)and then pull out
the CD ROMUppercage.
Step 2.Removescrewasshown(2)and then pull out
the CD ROMBottomcage.
2-4Removing theharddrive and slim
floppyDrive cage
Laythe chassison yourworkarea sothatyou have
access tothe bottomside.
Removethe 4screwsand takeoutthe cage.
Afteryou removed the slimCD ROMcage and Drivescage fromthe chassis,setthemaside.
Yourarenowreadyeithertoinstall the drivesinthe drivecage orinstall the backplane.
2-5 Installing The Backplane
Make sure that at no time you are working on any electrical or electronic components while any
part of the system is energized. Always disconnect the power! Use caution to protect the
delicate electronic components. Ground your self during the installation of the motherboard
and other components.
2-6 Installing the Standoffs
#9 Standoffs
#2 3x4screwstotighten backplane
#4 Washerbetween the backplane and screws
Takeamomenttostudythe inside ofthe chassis,making noteofthe location ofthe keyboard
Connectorifitcomewithbackplane.
Step 1.Slantthe backplane retention intothe chassisand position itinthe area itwill be
installed,making surethe alignmentofthe slotsand connectorsiscorrect.
Step 2.Makesurethe location ofthe backplane mounting points.You aregoing toinstall
standoffsatthosemounting points.

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PWS-1409/1419 User’sManual
find the mountpointofthe backplane
insertthe stand offs
Thread clock-wisetoinsertthe standoff
reversetotakeoff the stand off
Yourpackage comeswithmetalstandoffsthreaded on one end and tapped on the opposite
end toreceiveamounting screw.
Step 3.Nowcarefullywithdrawthe backplane and thread the standoffsintothe mounting
holesinthe chassis.
Step 4.Align the mounting pointing pointsand insertthe screwsintothe metalstandoffs.
Step 5.Tighten the screws.(add washerifthe screwswill shortwiththe circuitofthe
backplane)
Slantthe backplane and lowerthe
backplane intothe chassismotherboard.
Turnclockwisetosecurethe screws
you mayinsertthe insulating washerbetween
the screwand backplane toavoid
the shorting

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PWS-1409/1419 User’sManual
2-7Connecting thepowerConnector
The plug fromthe powersupplywill onlyinsertinone orientation.Pushdownfirmlymaking
surethe hookon the terminalblock clipsontothe plug.
Connecting the ChassisCables
The chassishas3internalcooling fan toreducethe temperatureofthe system,connecting the
fan powerconnectortofan adapterboard.
The flatpaneldisplayreceivesitspowerfrom
the powersupply.Find the wirebundlethat
endsina4-pinpowerconnectorfromthe chas-
sisside and plug itintoone ofthe powersupply
connectors.
2-8Installing theslimCD ROMtotheCD ROMCage
Step 1.Takeback the CD ROMcage,takethe #10 screwfromyourpackage,and securethe
CD ROMtoCDROMcage
Step 2.Takethe CD ROMinterfaceboardand Screw#1 fromyourpackage,and fixthe
interfaceboardtoCD ROM
Step 3.Connectthe cablestoCD ROMinterfaceboard
Interiorspaceisgoing tobe tightened.Whileyou havethe CD ROMcage outside of
the chassis,plug inall the cables.
Powersupplyplugsand audiocablewill onlyinsertinone orientation.Ribbon cables
shouldalways be connected withthe colored stripe toPin1on the connectors.