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HP Omnibook Xtvt6200 Service Manual

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    							HP Omnibook XT6050, XT/VT6200 Product Information 1-15
      Table 1-9. Functional Structure Description
    BootupCPU module
    Motherboard
    Hard disk drive
    Floppy disk moduleMain processor (MMO).
    Primary system circuitry, system BIOS.
    First source of disk-based startup code.
    Second source of disk-based startup code.
    ProcessorCPU module
    MotherboardMain processor, numeric data processor, L1 and L2 cache.
    Primary system circuitry.
    MemoryMotherboard
    SDRAM moduleVideo RAM, no onboard RAM.
    Changeable RAM (2 slots).
    PowerBattery
    Motherboard
    Display interface PCA.
    AC adapterPower storage.
    AC adapter socket, power switch, lid switch, system-off switch,
    power supply, power control circuitry.
    Blue sleep button.
    AC-to-DC converter.
    DisplayMotherboard
    Display assemblyGraphics controller, video RAM.
    Display output, backlight, power converter for backlight.
    Hard diskMotherboard
    Hard disk driveHard disk controller.
    Hard disk mechanism.
    Floppy driveMotherboard
    Floppy disk moduleI/O controller, floppy connector.
    Floppy disk mechanism.
    KeyboardMotherboard
    KeyboardKeyboard BIOS, keyboard controller.
    Key switches.
    PointerMotherboard
    Keyboard
    Top caseKeyboard circuitry, keyboard controller, keyboard BIOS.
    Pointing stick sensor (certain models).
    Touch pad sensor, click buttons, controller (PS/2 output).
    AudioMotherboard
    Display interface PCA
    Volume PCA
    Speaker assemblyAudio controller, audio decoder, speaker amplifier.
    Microphone.
    External audio jacks, headphone amplifier, audio-off switch.
    Speakers.
    StatusMotherboard
    Display interface PCA
    Top caseLED circuitry, keyboard controller.
    Keyboard LEDs.
    Main status LEDs.
    SerialMotherboard I/O controller, serial connector.
    ParallelMotherboard I/O controller, parallel connector.
    InfraredMotherboard I/O controller, infrared transmitter/receiver.
    PS/2 portMotherboard PS/2 connector, keyboard controller.
    USBMotherboard Bus controller (South Bridge), USB connector.
    Docking portMotherboard Docking logic, docking connector.
    PCMCIAMotherboard
    PCMCIA socketPCMCIA controller.
    PCMCIA connector.
    Wireless
    LANMotherboard
    Front antenna PCA
    Rear antenna PCA
    Mini-PCI card #1I/O controller.
    Receive antenna, on-off button, indicator light.
    Transmit/receive antenna.
    Radio, radio frequency circuitry.
    LANMotherboard
    Mini-PCI panelLAN circuitry, bus controller.
    LAN connector.
    ModemMini-PCI card #1
    Mini-PCI card #2
    Mini-PCI panelModem circuitry (certain models).
    Modem circuitry (certain models).
    Modem connector. 
    						
    							HP Omnibook XT6050, XT/VT6200 Removal and Replacement 2-1
    2 
    Removal and Replacement
    This chapter tells you how to remove and replace the Omnibook’s components and assemblies. The
    items marked by 
    • in the following table are user-replaceable.
      Table 2-1. Removal Cross-Reference
     
     
    • Battery, main (page 2-4).
    Battery, CMOS (page 2-31).
     
    • Bumpers, display (page 2-12)
     
    • Cap, pointing stick (page 2-12).
     
    • Card, mini-PCI #1 (page 2-10).
    Card, mini-PCI #2 (page 2-31).
    Case, bottom (page 2-23).
    Case, top (page 2-21).
    Cover, center hinge (page 2-31).
     
    • Cover, left corner (page 2-12).
     
    • Cover, mini-PCI (page 2-12).
     
    • Cover, SDRAM (page 2-12).
     
    • Cover, right corner (page 2-12).
     
    • Covers, screw (page 2-12).
    CPU module (page 2-17).
    Display assembly (page 2-19).
    Doors, docking (page 2-25).
    Doors, PCMCIA (page 2-25). 
     
    • Drive, hard disk (page 2-7).
     
    • Feet, rubber (page 2-12).
    Heatsink (with fan) (page 2-15).
    Keyboard (page 2-13).
    Panel, sound/IR (page 2-32).
    Panel, mini-PCI (page 2-32).
     
    • Panel, power button (page 2-11).
    PCA, display interface (page 2-32).
    PCA, motherboard (page 2-23).
    PCA, volume (page 2-33).
    PCA, front antenna (page 2-32).
    PCA, rear antenna (page 2-33).
     
    • Plug-in module (page 2-5).
     
    • SDRAM module (page 2-6).
    Socket, PCMCIA (page 2-33).
    Speaker assembly (page 2-33).
     
    • Tray, hard disk drive (page 2-7).
      Caution
     
    Always provide proper grounding when performing repairs. W ithout proper
    grounding, an electrostatic discharge can damage the Omnibook and its
    components.
     
    Notes
     
    Reassembly steps are the reverse of the removal steps. Reassembly notes are included at the end
    of each section below.
     
    Symbols like this throughout this chapter show approximate full-size screw outlines. You can
    use these to verify the sizes of screws before you install them. Installing a wrong-size screw can
    damage the unit. (The symbol at the left represents an M2.5×5mm T-head screw.) 
    						
    							2-2 Removal and Replacement HP Omnibook XT6050, XT/VT6200
      Table 2-2. Required Equipment
     
    • Small Phillips screwdriver, preferably magnetized.
     
    • Small flat-blade screwdriver.
     
    • IC (PLCC) removal tool (similar to OK Industries EX-5).
      Table 2-3. Recommended Screw Torques
    Screw Thread SizeTorque (cm-kgf)Torque (in-lbf)
    M2 1.3 – 1.8 1.1 – 1.5
    M2.5 (2–11 mm long) 3.0 – 3.5 2.6 – 3.0
    M2.5 (12–19 mm long) 2.5 – 3.0 2.2 – 2.6
    M3 3.0 – 3.5 2.6 – 3.0 
    						
    							HP Omnibook XT6050, XT/VT6200 Removal and Replacement 2-3
    Disassembly Flowchart
    The following diagram shows the general “path” you will use in disassembling the computer to access
    any particular component.
      Figure 2-1. Disassembly Flow
    If removing only
    display assembly
    or hinge covers
    Display assemblyCenter hinge cover
    Rear antenna PCA (wireless
    models only)
    Top casePCMCIA socket
    Display interface PCA
    Volume PCA
    Mini-PCI panel
    Sound/IR panel
    Docking doors
    PCMCIA doors
    Speaker assembly
    Front antenna PCA (wireless only)
    Mini-PCI card #2Motherboard or bottom case
    Power button panel
    Keyboard
    Heatsink (with fan)CPU module
    CMOS batter
    y
    Plug-in module, SDRAM module,
    Mini-PCI card #1, hard disk drive ** Only if removing the top case,
      motherboard, or bottom case.
    Battery, AC adapter,
    secondary battery module 
    						
    							2-4 Removal and Replacement HP Omnibook XT6050, XT/VT6200
    Removing the Battery
    (User-Replaceable)
    Required Equipment
     
    • None.
    Removal Procedure
     
    • Slide the battery’s release latch, then lift the battery out of its compartment.
     
      Figure 2-2. Removing the Battery
    Reassembly Notes
     
    • Insert the front (rounded) end of the battery into the battery compartment on the bottom of the
    computer, and lower the back end in until it clicks into place. 
    						
    							HP Omnibook XT6050, XT/VT6200 Removal and Replacement 2-5
    Removing a Plug-In Module
    (User-Replaceable)
    Required Equipment
     
    • None.
    Removal Procedure
     1.
     Press the button on the module release latch, and slide the latch toward the front of the computer.
     
      Figure 2-3. Releasing a Module
     2.
     Grasp the module and pull it out.
     
      Figure 2-4. Removing a Module 
    						
    							2-6 Removal and Replacement HP Omnibook XT6050, XT/VT6200
    Removing an SDRAM Module
    (User-Replaceable)
    The notebook has no SDRAM built into its motherboard, but has two slots for SDRAM modules. One
    slot contains an SDRAM module installed at the factory.
      Note
     
    Omnibook XT6050 models use only PC133 SDRAM modules, and Omnibook XT/VT6200 models
    use only DDR266 SDRAM modules. Using the wrong type of module prevents the notebook from
    booting.
     
    Caution
     
    Handle the SDRAM module only by its edges and provide proper grounding, or you might damage
    the module through electrostatic discharge.
    Required Equipment
     
    • Small Phillips screwdriver.
    Removal Procedure
     1.
     Unplug the AC adapter, if present, and remove the battery and any secondary battery module.
     2.
     On the bottom of the notebook, loosen the screws holding the SDRAM cover (the cover retains the
    screws), and remove the cover.
     3.
     Press outward to release the latches at the sides of the SDRAM module, so that the free edge of the
    module pops up.
     4.
     Carefully pull the module out of the connector.
     
      Figure 2-5. Removing an SDRAM Module
    Reassembly Notes
     
    • Carefully press the SDRAM module into the connector at an angle of about 30°, until it is fully
    inserted. Then press down on both sides of the module until the latches snap closed. 
    						
    							HP Omnibook XT6050, XT/VT6200 Removal and Replacement 2-7
    Removing the Hard Disk Drive
    (User-Replaceable)
    Required Equipment
     
    • Small Phillips screwdriver.
    Removal Procedure
     1.
     Unplug the AC adapter, if present, and remove the battery and any secondary battery module.
     2.
     On the bottom of the unit, remove the hard drive retaining screws.
     3.
     Raise the cover on the end of the drive so that its retainer tab is free of the notebook case, then
    carefully pull the hard drive out of the computer.
     
      Figure 2-6. Removing the Hard Disk Drive
     4.
     Remove the screws from the drive and drive tray, then lift the drive out of the tray.
     5.
     Notice that the hard drive has a pin connector attachment at one end. Carefully remove this
    connector from the end of the drive by working alternately at each end of the connector so that it
    slides off evenly without bending the connector pins.
    Screw, M2.5×6mm
    Screw, M3×6mm 
    						
    							2-8 Removal and Replacement HP Omnibook XT6050, XT/VT6200
     
      Figure 2-7. Removing the Hard Disk Tray
    Reassembly Notes
     
    • Carefully put the pin connector back onto the pins on the end of the new hard drive. Work at each
    end alternately so that the connector slides on evenly without bending the pins.
     
    • Slide the cover down into place so the retainer tab engages the notebook case.
      Important
     
    If you are installing a new hard disk drive, load the factory software and operating system on the
    drive as described in “Recovering the Factory Software,” below.
    Pin connector
    Screws, M3×3mm (2)
    Screws, M3×3mm (2)
    Screws, M2×4mm (2) 
    						
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