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HP Omnibook Xtvt6200 Service Manual

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    							HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-15
    SymptomCall Center:
    Suggestions
    Repair Center:
    Likely Causes
    Repair Center:
    Comments
    LAN/network
    General problems. Check cables and
    connections.
    Try connecting notebook to
    another network station (if
    applicable). If green light next
    to LAN port does not light,
    LAN cable may not be
    connected to network or
    network may be down.
    Use networking
    troubleshooter in W indows
    Help.
    Check settings in BIOS
    Setup.
    Check settings in Control
    Panel.
    Make sure LAN cable is
    Category 3, 4, or 5 for
    10Base-T operation, or
    Category 5 for 100Base-TX
    operation. Maximum cable
    length is 100 meters (330
    feet).
    Test LAN with e-Diagtools
    diagnostics.Mini-PCI panel.
    Motherboard.
    Infrared
    General problems. Infrared is disabled and no
    drivers installed as shipped.
    (Drivers are included.)
    Make sure line between
    infrared ports is not blocked,
    ports face each other
    squarely and are no more
    than 1 meter apart. Sunlight,
    heat from nearby equipment,
    or other sources of infrared
    radiation can cause
    transmission errors.
    Check settings in BIOS
    Setup.
    Remove any PC cards from
    notebook (possible IRQ
    conflict).
    For fast-IrDA, check for DMA
    conflict with ECP parallel
    port.Motherboard. 
    						
    							3-16 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200
    SymptomCall Center:
    Suggestions
    Repair Center:
    Likely Causes
    Repair Center:
    Comments
    Wireless
    General problems. Check TCP/IP setup in
    Control Panel.
    Check SSID, channel, and
    encryption settings: click
    wireless link icon in taskbar
    and select Advanced
    Configuration.Mini-PCI card #1.
    Rear antenna PCA.
    Front antenna PCA.
    Motherboard.Make sure all cables are
    properly connected to mini-
    PCI card #1 and
    motherboard. Check for
    damaged coaxial cables or
    connectors.
    One-Touch buttons
    Buttons not working
    properly.Make sure correct
    applications are associated
    with buttons in One-Touch
    tab of Keyboard in Control
    Panels.Keyboard cover.
    Display interface
    PCA.
    Motherboard.
    On-screen display
    does not appear
    when button is
    pressed.Make sure Onscreen Display
    is enabled in One-Touch tab
    of Keyboard in Control
    Panels.
    PCMCIA
    General problems. Restart notebook.
    Try card in another computer
    or other device.
    If card requires an IRQ, make
    sure one is available.
    In Device Manager, refresh
    device list and check for
    conflicts.
    Check HP Notebook web site
    for installation instructions
    (page vi).
    W hen using PC card in
    docking system, insert or
    remove card while system is
    turned on.
    Download current drivers
    from card manufacturer’s
    web site.PCMCIA socket.
    Motherboard.Using a flashlight, look for
    bent pins inside the PCMCIA
    socket.
    Replace PCMCIA socket;
    replace motherboard.
    AC adapter
    Does not power
    notebook.Try another AC adapter, if
    available.AC adapter.
    Motherboard.AC adapter cannot be
    repaired and must be
    replaced.
    Motherboard
    Evidence of spilled
    liquid.Declared to be caused by
    customer abuse.
    Bent or broken
    connectors, or burnt
    component.Declared to be caused by
    customer abuse.
    Motherboard
    cracked.Declared to be caused by
    customer abuse. 
    						
    							HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-17
    SymptomCall Center:
    Suggestions
    Repair Center:
    Likely Causes
    Repair Center:
    Comments
    Miscellaneous
    Clock loses time. Plug in AC adapter for 24
    hours to charge CMOS
    battery.CMOS battery.
    Motherboard.Charge CMOS battery.
    Notebook gets
    abnormally hot.Always set notebook on a flat
    surface, so air can flow freely
    around and underneath it
    Make sure air vents are not
    blocked.
    Games and other programs
    that drive CPU usage toward
    100% can contribute.Heatsink. Check heatsink for damage
    or proper fan operation.
    Check thermal contact
    between CPU and heatsink.
    Replace thermal pad if
    needed.
    Notebook pauses
    or runs sluggishly.May be normal W indows
    behavior (background
    processing can affect
    response time).
    Certain operations (such as
    virus scanning or file
    browsers) can affect
    performance.
    Press Ctrl+Alt+Del to see if
    an application is not
    responding.
    Restart notebook.
    If hard disk has spun down to
    conserve power, it can take
    several seconds to spin up
    (you can hear this). Use
    Control Panel to modify hard
    disk power settings.
    Check for overheating—see
    previous symptom.
    If notebook’s hard drive
    frequently runs (as indicated
    by hard drive light on front of
    notebook) while notebook
    appears to be paused or
    running slowly, consider
    installing additional SDRAM.
    Make sure hard drive has
    adequate free space. Delete
    temporary and unneeded
    files.CPU module.
    Motherboard.If notebook slows after period
    of continuous activity, check
    heatsink—see previous
    symptom.
    Notebook still on
    but stops
    responding.Press Ctrl+Alt+Del and end
    any application not
    responding.
    Reset notebook (see
    page 1-8).
    Plug-in Modules
    General problems. Make sure module is
    installed properly. Check
    module contacts.
    Reset notebook (see
    page 1-8).Plug-in module or
    contacts.
    Motherboard.Plug-in modules cannot be
    repaired, and must be
    exchanged. 
    						
    							3-18 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200
    SymptomCall Center:
    Suggestions
    Repair Center:
    Likely Causes
    Repair Center:
    Comments
    Accessories
    Docking product I/O
    problems.Make sure AC power is
    connected to dock, and
    notebook is fully inserted in
    dock.
    Check notebook’s power
    supply.
    Check settings in BIOS
    Setup.
    Try using corresponding port
    on notebooks while
    undocked.Docking product.
    Motherboard.Test corresponding notebook
    ports while undocked.
    Port replicator and mini dock
    are not repairable, and must
    be exchanged. 
    						
    							HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-19
    Diagnostic Tools
    This section describes the following diagnostic tools you can use for troubleshooting and repairing the
    Omnibook:
     
    • Omnibook e-Diagtools diagnostic program (below).
     
    • Power-on self-test (page 3-22).
     
    • Sycard PCCtest 450 PC card (page 3-27).
     
    • Windows/Desktop Management Interface (page 3-28).
     
    • BIOS Setup utility (page 3-29).
    e-Diagtools Diagnostic Program
    The hardware diagnostic programs provide two levels of testing:
     
    • User-level testing using a basic hardware test.
     
    • Advanced testing using individual hardware tests.
         
    Figure 3-2. Diagnostic Screens — Basic and Advanced
    The tests are designed to run after the system reboots, so that the notebook will be in a predictable
    state during the tests. The tests are non-destructive, and are intended to preserve the state of the
    notebook. The notebook reboots when you exit the program so drivers can be loaded. 
    						
    							3-20 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200
    Running e-Diagtools
    The following steps describe how to run e-Diagtools. The procedure may differ slightly for different
    versions of e-Diagtools.
     1.
     Restart the computer.
     2.
     When the HP logo appears, press F10 to start the diagnostic test.
     3.
     When the menu appears, press Enter to run e-Diagtools.
     4.
     The first time you run the program, you are prompted to select the language for the program.
     5.
     Press F2 to proceed with the basic tests.
     You can also proceed directly to the advanced tests from this point by pressing Ctrl-F9 (in which
    case skip to step 10, below).
     6.
     When the hardware detection finishes, check the list of detected hardware.
      Note
     
    If a device is not detected or fails its test, it might be configured incorrectly in the notebook’s
    BIOS. You can confirm this by running BIOS Setup and checking the settings—see “BIOS Setup
    Utility” on page 3-29.
     7.
     
    Run the basic test. Press F2 to start the basic hardware test.
     8.
     To exit without running the advanced tests, press F4 to view the Support Ticket. Press F3 to exit.
     9.
     
    Optional: Run the advanced tests. Press F2 to open the advanced test screen.
     10.
     Select and run the appropriate tests. Note that individual tests do not appear if the hardware they
    test is not detected. Press the following keys to run tests:
     Enter Runs the highlighted test.
    F5 or Space Marks/unmarks the highlighted test.
    F6 Marks/unmarks all tests in the current menu.
    F7 Marks/unmarks all tests in all menus.
    F10 Runs all marked tests.
     (Press F9 for a list of all function keys.)
     If a test fails, the error code and description are logged, and the error code is displayed
    temporarily. If several errors occur, look for patterns that might indicate a common cause.
     11.
     
    Save the Support Ticket. Press T to update and display a Support Ticket containing system and
    test information.
     12.
     When you are finished running tests, press Esc to exit the advanced tests.
     13.
     
    Optional: To save the Support Ticket to a floppy disk, press F7 then Alt+C.
     14.
     
    Exit.
     Press F3 and then any key to exit and restart the notebook.
     15.
     
    Optional: Open the Support Ticket. In Windows, click Start, Programs (or All Programs),
    Hewlett-Packard, Notebook, HP e-DiagTools, e-DiagTools for Windows.
     16.
     Click View to display the Support Ticket.
     17.
     To add information about the problem, click Comments and type the information, then click OK. 
    						
    							HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-21
     To save or print the Support Ticket, click Save As or Print.
    Note that the serial and parallel port tests are more thorough if you connect a loop-back connector to
    the port and enable the external loopback option before running the test for that port. See the wiring
    diagrams below.
    141
    25 13
    6
    19 5
    Figure 3-3. Serial and Parallel Loopback Connectors
    These connections
    are not used.
    Diodes are 1N4004
    or equivalent
    (I
    F=1A, VF=1V@1A,
    V
    R=30-400V) 
    						
    							3-22 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200
    Interpreting the Results
    The e-Diagtools diagnostic program returns test groups, error codes, and suggestions for repair and/or
    follow-up actions. The basic hardware test will show a recommended replacement part, while the
    advanced tests also provide more detailed error descriptions.
    To help interpret the results of the e-Diagtools tests, refer to the following:
     
    • e-Diagtools online help
     
    • Replaceable Module Diagram on page 1-14
     
    • Functional Structure Description on page 1-15
    This combined information should enable you to determine which of the notebook’s components
    require service. 
    						
    							HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-23
    Power-On Self-Test
      Note
     
    If Quiet Boot is enabled in BIOS Setup (the default setting), press Esc during boot to see POST
    messages.
    When the notebook boots, its system BIOS runs a series of initialization routines and diagnostic tests
    called POST (Power-On Self-Test). The BIOS will not boot the notebook’s operating system if certain
    components fail the POST diagnostic tests. POST indicates progress by a sequence of codes; if an
    error occurs, the BIOS displays a message and/or issues a beep code.
    Note that not all POST messages indicate a failure in the notebook—some messages are for
    information only. You should not necessarily interpret the failure of one or more POST tests as a
    hardware, software, or firmware failure. If POST displays an error message or issues a beep code
    indicating an error, 
    confirm the problem using other diagnostic tools.
    First, confirm the failure by performing a “clean” boot, as described below: If the notebook fails to
    restart with a clean boot, it requires repair.
     1.
     Remove all accessories, including SDRAM modules, floppy drive, port replicator, PC cards,
    printer, external monitor, pointing device, and keyboard.
     2.
     Provide “clean” AC power—no auto adapter or unusual AC adapter configuration.
     3.
     Press the system-off switch to return the notebook to a known state.
     4.
     Press the blue sleep button to start the notebook.
    If the BIOS detects a terminal error condition, it halts POST after issuing a beep code and/or
    displaying a message (see the following table). The beep code indicates the POST routine in which the
    terminal error occurred.
      Table 3-3. POST Terminal-Error Beep Codes
    BeepCodes*ErrorCodePOST Description
    1 B4h One short beep before boot.1-2 — Search for option ROMs.1-1-1-3 02h Verify Real Mode.1-1-1-4 03h Disable Non-Maskable Interrupt (NMI).1-1-2-1 04h Get CPU type.1-1-2-3 06h Initialize system hardware.1-1-2-4 07h Disable shadow and execute code from ROM.1-1-3-1 08h Initialize chipset with initial POST values.1-1-3-2 09h Set IN POST flag.1-1-3-3 0Ah Initialize CPU registers.1-1-3-4 0Bh Enable CPU cache.1-1-4-1 0Ch Initialize caches to initial POST values.1-1-4-3 0Eh Initialize I/O component.1-1-4-4 0Fh Initialize local bus IDE.1-2-1-1 10h Initialize Power Management.1-2-1-2 11h Load alternate registers with initial POST
    values.
    1-2-1-3 12h Restore CPU control word during warm boot.1-2-1-4 13h Initialize PCI Bus Mastering devices.1-2-2-1 14h Initialize keyboard controller.1-2-2-3 16h BIOS ROM checksum.1-2-2-4 17h Initialize cache before memory Auto size.1-2-3-1 18h 8254 timer initialization.1-2-3-3 1Ah 8237 DMA controller initialization.1-2-4-1 1Ch Reset Programmable Interrupt Controller.
    BeepCodes*ErrorCodePOST Description
    1-3-1-1 20h Test DRAM refresh.1-3-1-3 22h Test 8742 Keyboard Controller (on
    motherboard).
    1-3-2-1 24h Set ES segment register to 4 GB.1-3-3-1 28h Auto size DRAM; or wrong type or no RAM
    installed.
    1-3-3-2 29h Initialize POST Memory Manager.1-3-3-3 2Ah Clear 512 kB base RAM.1-3-4-1 2Ch RAM failure on address line xxxx.1-3-4-3 2Eh RAM failure on data bits xxxx of low byte of
    memory bus.
    1-3-4-4 2Fh Enable cache before system BIOS shadow.1-4-1-1 — RAM failure on data bits xxxx of high byte of
    memory bus.
    1-4-1-3 32h Test CPU bus-clock frequency.1-4-1-4 33h Initialize Phoenix Dispatch Manager.1-4-2-3 36h Warm start shut down.1-4-3-1 38h Shadow system BIOS ROM.1-4-3-3 3Ah Auto size cache.1-4-4-1 3Ch Advanced configuration of chipset registers.1-4-4-2 3Dh Load alternate registers with CMOS values.2-1-1-2 41h Initialize extended memory for RomPilot.2-1-1-3 42h Initialize interrupt vectors.2-1-2-2 45h POST device initialization.2-1-2-3 46h Check ROM copyright notice.2-1-2-4 47h Initialize I20 support. 
    						
    							3-24 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200
    BeepCodes*ErrorCodePOST Description
    2-1-3-1 48h Check video configuration against CMOS.2-1-3-2 49h Initialize PCI bus and devices.2-1-3-3 4Ah Initialize all video adapters in system.2-1-3-4 4Bh QuietBoot start (optional).2-1-4-1 4Ch Shadow video BIOS ROM.2-1-4-3 4Eh Display BIOS copyright notice.2-1-4-4 4Fh Initialize MultiBoot.2-2-1-1 50h Display CPU type and speed.2-2-1-2 51h Initialize EISA board.2-2-1-3 52h Test keyboard.2-2-2-1 54h Set key click if enabled.2-2-2-2 55h Enable USB devices.2-2-3-1 58h Test for unexpected interrupts.2-2-3-2 59h Initialize POST display service.2-2-3-3 5Ah Display prompt Press F2 to enter SETUP.2-2-3-4 5Bh Disable CPU cache.2-2-4-1 5Ch Test RAM between 512 and 640 kB.2-3-1-1 60h Test extended memory.2-3-1-3 62h Test extended memory address lines.2-3-2-1 64h Jump to UserPatch1.2-3-2-3 66h Configure advanced cache registers.2-3-2-4 67h Initialize Multi Processor APIC.2-3-3-1 68h Enable external and CPU caches.2-3-3-2 69h Set up System Management Mode (SMM)
    area.
    2-3-3-3 6Ah Display external L2 cache size.2-3-3-4 6Bh Load custom defaults (optional).2-3-4-1 6Ch Display shadow-area message.2-3-4-3 6Eh Display possible high address for UMB
    recovery.
    2-4-1-1 70h Display error messages.2-4-1-3 72h Check for configuration errors.2-4-2-3 76h Check for keyboard errors.2-4-4-1 7Ch Set up hardware interrupt vectors.2-4-4-2 7Dh Initialize Intelligent System Monitoring.2-4-4-3 7Eh Initialize coprocessor if present.3-1-1-1 80h Disable onboard Super I/O ports and IRQs.3-1-1-2 81h Late POST device initialization.3-1-1-3 82h Detect and install external RS232 ports.3-1-1-4 83h Configure non-MCD IDE controllers.3-1-2-1 84h Detect and install external parallel ports.3-1-2-2 85h Initialize PC-compatible PnP ISA devices.3-1-2-3 86h Re-initialize onboard I/O ports.3-1-2-4 87h Configure Motherboard Configurable Devices
    (optional).
    3-1-3-1 88h Initialize BIOS Data Area.3-1-3-2 89h Enable Non-Maskable Interrupts (NMIs).3-1-3-3 8Ah Initialize Extended BIOS Data Area.3-1-3-4 8Bh Test and initialize PS/2 mouse.3-1-4-1 8Ch Initialize floppy controller.3-1-4-4 8Fh Determine number of ATA drives (optional).3-2-1-1 90h Initialize hard-disk controllers.3-2-1-2 91h Initialize local-bus hard-disk controllers.3-2-1-3 92h Jump to UserPatch2.3-2-1-4 93h Build MPTABLE for multi-processor boards.3-2-2-2 95h Install CD-ROM for boot.3-2-2-3 96h Clear huge ES segment register.3-2-2-4 97h Fix up Multi Processor table.3-2-3-2 99h Check for SMART Drive (optional).3-2-3-3 9Ah Shadow option ROMs.3-2-4-1 9Ch Set up Power Management.3-2-4-2 9Dh Initialize security engine (optional).3-2-4-3 9Eh Enable hardware interrupts.3-2-4-4 9Fh Determine number of ATA and SCSI drives.3-3-1-1 A0h Set time of day.3-3-1-3 A2h Check key lock.
    BeepCodes*ErrorCodePOST Description
    3-3-2-1 A4h Initialize typematic rate.3-3-3-1 A8h Erase F2 prompt.3-3-3-3 AAh Scan for F2 keystroke.3-3-4-1 ACh Enter SETUP.3-3-4-3 AEh Clear Boot flag.3-4-1-1 B0h Check for errors.3-4-1-2 B1h Inform RomPilot about the end of POST.3-4-1-3 B2h POST done - prepare to boot OS.3-4-2-2 B5h Terminate QuietBoot (optional).3-4-2-3 B6h Check password (optional).3-4-2-4 B7h Initialize ACPI BIOS.3-4-3-2 B9h Prepare Boot.3-4-3-3 BAh Initialize SMBIOS.3-4-3-4 BBh Initialize PnP Option ROMs.3-4-4-1 BCh Clear parity checkers.3-4-4-2 BDh Display MultiBoot menu.3-4-4-3 BEh Clear screen (optional).3-4-4-4 BFh Check virus and backup reminders.4-1-1-1 C0h Try to boot with INT 19.4-1-1-2 C1h Initialize POST Error Manager (PEM).4-1-1-3 C2h Initialize error logging.4-1-1-4 C3h Initialize error display function.4-1-2-1 C4h Initialize system error handler.4-1-2-2 C5h PnPnd dual CMOS (optional).4-1-2-3 C6h Initialize note dock (optional).4-1-2-4 C7h Initialize note dock late.4-1-3-1 C8h Force check (optional).4-1-3-2 C9h Extended checksum (optional).4-1-3-3 CAh Redirect Int 15h to enable remote keyboard.4-1-3-4 CBh Redirect Int 13h to Memory Technologies
    Devices such as ROM, RAM, PCMCIA, and
    serial disk.
    4-1-4-1 CCh Redirect Int 10h to enable remote serial
    video.
    4-1-4-2 CDh Re-map I/O and memory for PCMCIA.4-1-4-3 CEh Initialize digitizer and display message.4-2-1-3 D2h Unknown interrupt.4-3-1-1 E0h Initialize the chipset.4-3-1-2 E1h Initialize the bridge.4-3-1-3 E2h Initialize the CPU.4-3-1-4 E3h Initialize system timer.4-3-2-1 E4h Initialize system I/O.4-3-2-2 E5h Check force recovery boot.4-3-2-3 E6h Checksum BIOS ROM.4-3-2-4 E7h Go to BIOS.4-3-3-1 E8h Set Huge Segment.4-3-3-2 E9h Initialize Multi Processor.4-3-3-3 EAh Initialize OEM special code.4-3-3-4 EBh Initialize PIC and DMA.4-3-4-1 ECh Initialize Memory type.4-3-4-2 EDh Initialize Memory size.4-3-4-3 EEh Shadow Boot Block.4-3-4-4 EFh System memory test.4-4-1-1 F0h Initialize interrupt vectors.4-4-1-2 F1h Initialize Run Time Clock.4-4-1-3 F2h Initialize video.4-4-1-4 F3h Initialize System Management Manager.4-4-2-1 F4h Output one beep.4-4-2-2 F5h Clear Huge Segment.4-4-2-3 F6h Boot to Mini DOS.4-4-2-4 F7h Boot to Full DOS.1 long,
    2 short98h Improper video configuration (replace
    motherboard) or external ROM checksum
    failure. 
    						
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