Industrial PWS-1419T Portable Computer System Assembly Guide A Technical Guide for System Integrators and Service Technicians
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Getting Started Specification Before You Start Precautions Power Connections 4 5 5 5 Non-Autosensing Power Supply 5 ATX Power Switch 5 Ventilation 6 Care for the LCD Tools and Supplies Needed Subassembly Contents Parts Contents 6 6 6 6 Optional CDROM 7 Identifying Parts and Controls Opening the Side Access Covers PWA1419T Side Views Front View OSD The Keyboard 7 7 7 9 10 10
Getting Started General Features Support passive backplane form factor platforms. ABS plastic housing with aluminum internal chassis. 14.1” High resolution color martix TFT LCD display Built-in analog to digital VGA signal conversion board Add-on card retention system. Shock mount protection for the hard disk driver Detachable 104/105-keys keyboard Built-in touch pad. Built-in speaker with amplifier 200W AT or ATX power supply (optional DC power supply) Carrying case with wheel.
Before You Start The major component of the subassembly is the chassis, which comes in two models—9 x ISA slot or 4 x PCI, 5 x ISA 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 peripheral devices. Before adding these devices, it is important to follow certain basic safety precautions.
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. 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.
Optional Slim CD ROM Disk 1. Slim CD ROM interface board 2. CD ROM power cable (interface to power supply) 3. Audio cable (interface board to sound card or SBC Audio out) 4. Slim CD ROM The pin out may be different for other brand or version of CD ROM & floppy disk Do not use the CD ROM and floppy from other sources. Identifying Parts and Controls Opening the Side Access Covers The side access door provide side impact protection for the chassis. The access door must be opened to access the I/O connectors.
PWS 1419T Side Views Use the photo below to identify components and I/O ports that are accessible from the two sides of the BP-10 chassis. The illustration shows the external connectors and components of a completely assembled SBC system. Your subassembly has only knockout holes instead. Handle bar VGA port & monitor connector 9 add-on card slot (optional 12) I/O port knockouts.
Front View You access the front panel controls by first disengaging the keyboard. Disengage the keyboard from the latches by sliding the latch tabs on the bottom sides of the keyboard towards the center as shown and simultaneously pull the top part of the keyboard away from the chassis. The keyboard is still hinged on the bottom by latch bolts. Lay down the keyboard.
OSD button The OSD button is on the left side of the panel, you have to pull up the panel first to see the buttons, pull down the small door and pull up the panel with the small bar on the panel. Pull up the bar OSD Buttons “ Manual” “Select” “+” “-“ Small door The Keyboard The subassembly comes with a mechanical switch keyboard with an integrated touch pad device. The signal cable is conceal in the fillister of the keyboard, you have pull it up to connect the connector of the SBC.
PWS-1409T 1. Opening The Chassis 12 Removing the Back Cover 12 Removing the Card Stabilizers 12 Identifying the Internal Parts 12 Removing the Drive Cage 12 Installing the Backplane 13 Installing the Standoffs 13 Connecting the Power Connector 15 . Installing the Drives to the Drive Cage 15 .
Open the chassis Removing the Back Cover Face the back of the chassis. Remove all screws as shown. There are 7 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 7 screws along the perimeter of the back cover that secures it to the chassis.
1 4 3 13 1 1. speaker 2 case fan 3 fan board 4 LCD power cable 5 audio cable CD audio in 6 driver cage 7 fan cable to SBC 8 CDROM signal cable 9 power supply 10 reset cable 11 audio cable (SBC to speaker) 12 side door 13 mount hole 2 2 2 5 6 7 8 9 10 11 12 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.
find the mount point of the backplane insert the stand offs Thread clock-wise to insert the standoff reverse to take off the stand off Your package comes with metal standoffs threaded on one end and tapped on the opposite end to receive a mounting screw. Step 3. Now carefully withdraw the backplane and thread the standoffs into the mounting holes in the chassis. Step 4. Align the mounting pointing points and insert the screws into the metal standoffs. Step 5. Tighten the screws.
Connecting the power Connector The plug from the power supply will only insert in one orientation. Push down firmly making sure the hook on the terminal block clips onto the plug. Connecting the Chassis Cables The chassis has 3 internal cooling fan to reduce the temperature of the system, connecting the fan power connector to fan adapter board. The flat panel display receives its power from the power supply.
secure the hard disk to drive cage with screw # 5, insert washer #3 between cage and screw, same with the other side secure the floppy disk to drivr cage with screw# 2, , same with the other side Connect the signal cables Ribbon cables should always be connected with the colored stripe to Pin 1 on the connectors.
Installing the DriverCage Step Step Step Step 1. Carefully put the drive cage back into the chassis. 2. Plugging the case fan power conecttor into the interface board for fan power 3. Plugging the power conector for floppy disk and hard disk 4.
Installing the SBC Setting your SBC Jumpers Before installing the motherboard in the chassis, install the CPU and set any dip-switch or jumper on the SBC. Since jumper and dip-switch settings are board-specific, consult the manual that comes with the SBC and carefully follow the directions to configure your SBC. * Make sure that at no time you are working on any electrical or electronic components while any part of the system is energized.
Connect the signal cable and chassis cable before fix the SBC Fix the SBC with screw #2 Installing the Add-on Cards The chassis has 10 slot openings supporting up to nine (one is used by SBC) add-on cards. Follow these steps to install add-on cards Add-on card can be extremely sensitive to electrostatic discharge. Always handle the cards with care. Hold the card by the metal slot cover or upper corners. Be careful not to touch the components or gold edge connectors. Step 1.
Slant the add-on card stabilizer and put it in the case, then set straight and fix it. Use screw #7 to secure it. Use the screw removed earlier. Insert it into the threaded hole and tighten it. Step 3. Slide each clip so they come in contact with the top edge of the add-on cards. While holding the clip firmly against the card edge, tighten the bracket screws. Step 4. Cut off any excessive part of the plastic clip. Step 5. Repeat these steps for the other stabilizer.
1. Connect the VGA Connector 2. Connect the other connectors for other device such as Ethernet, Audio device… Closing the Back Cover Reinstall the back cover and insert the retaining screws.
Using The System Controls Starting your System Systems with ATX Power Supply Systems with AT Power Supply OSD Controls Adjusting the OSD Parameters Changing Filter for the internal Fan 23 23 23 23 23 23
Starting your System Before starting your system, plug in the power cord and make sure the video and input device connectors are plugged in. Release the keyboard latches and lay it flat on your work area. Systems with ATX Power Supply If you have an ATX power supply, power up your system by pressing the ATX power switch push button on the front panel of your chassis.
Contrast Menu Contrast: Manual adjustment the contrast Sub-CONTRAST: Manual adjustment of individual RGB channel contrast. Position Menu H-size: Adjust the horizontal size Clock phase: Manual adjustment of the sample pixel clock phase. H.POSITION: Adjusts the horizontal image position within the display area of the LCD. V.POSITION: Adjusts the vertical image position within the display area of the LCD.
Appendix A.
Trouble Shooting Techniques No screen after pressing front power switch Power supply fan not spinning: Check power source. Check power cord connection. Check if all power connectors inside the chassis have been properly connected. Check the ATX power switch cable to SBC(or motherboard) have been properly connected Check main power switch on power supply (PS-2 power supply for BP-7 model).
LCD SCREEN works fine in Windows but acted funny when running certain programs or games: The built-in Intelligent Analog-Digital conversion board (AD board) should adjust the screen to the proper resolution to fill the entire display. However, certain programs or display modes might cause the AD board to not align or sync properly. Check if the program that you are running is running under supported resolution. (The max resolution on 12.1” is 800 * 600, 13. 1”, 14.1”, 15” is 1024 *768.
Appendix B: LCD VIDEO Controller Introduction Safety Precautions 29 30 Identifying the Components Main Board Main Board ASIC Features LVDS Transmitter Backlight Inverter OSD Push Button Board Configuring Your Controller LCD with TTL Interface LCD with LVDS Receiver Interface OSD Controls Adjusting the OSD Parameters 30 30 31 32 32 33 33 33 33 34 34
Introduction The LCD video controller subassembly is an “in-monitor” design build around a high performance ASIC technology that enable the display of analog VGA signals on a flat panel LCD display. The LCD video board provides all the electronic necessary to drive a TFT flat panel display from VGA (640x480) up to (1280x1024) source. In feature a multi-interface LCD video controller board that support TTL, LVDS and TMDS protocol-base flat panel display.
The light source for most flat panel displays is a cold cathode fluorescent backlight. These backlights run on high AC voltage provided by an inverter that converts the supplied DC power to AC and steps its voltage up for start-up. Once the backlight is started, the inverter drops the voltage down to its operating level.
1 Jumper for 3.3V or 5V TFT panel.
Automatic ADC Sampling Phase Optimization -Performs measurements so that firmware can automatically optimize the ADC sampling phase. Optimized Panel Clock -Panel clock frequency is optimized to support each mode at the lowest possible frequency. 1280 x 1024 x 75HZ is supported without driving the panel clock at 135Mhz. -Panel clock pad drive strength and clock to data skew are programmable to reduce EMI in the panel interface cable.
OSD Push Button Board The OSD menus and parameters are accessed by 4 push buttons . to mainboard “7 OSD push-button board connector” “Select” “ Manual” “+” “-“ Configuring Your Controller While your LCD controller is designed to drive a wide range of TFT LCD panels, many aspects of the ASIC chip’s panel interface are programmable through a micro-controller with built-in EEPROM. Check with the supplier of your controller to find a recommended LCD panel.
OSD Controls The LCD controller includes an integrated RAM-based OSD controller. Through four front panel controls you can view adjustable features of the LCD through the On-Screen Display. Brightness Contrast Position Information All Reset Brightness Contrast Sub. Contrast H. Size Clock Phase R G B H. Position V. Position Information 1024 x 768 H. f 56.4KHz V. f. 70 Hz Follow these steps to activate the on-screen display and make any adjustments to suit your preference: Step 1. Step 2. Step 3.
POSITION H-SIZE: Adjustment of the vertical image size CKOCK PHASE: adjustment of the ADC sample pixel clock. H. POSITION: Adjusts the horizontal image position within the display area of the LCD. V. POSITION: Adjusts the vertical image position within the display area of the LCD.
