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compaq evo n610c and evo n600c User Manual

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    							Maintenance and Service Guide2–1
    2
    Troubleshooting
    ÅWARNING: Only authorized technicians trained by Compaq should 
    repair this equipment. All troubleshooting and repair procedures 
    are detailed to allow only subassembly/module level repair. 
    Because of the complexity of the individual boards and 
    subassemblies, no one should attempt to make repairs at the 
    component level or make modifications to any printed wiring board. 
    Improper repairs can create a safety hazard. Any indication of 
    component replacement or printed wiring board modification may 
    void any warranty or exchange allowances.
    2.1 Computer Setup and Diagnostics 
    Utilities
    Selecting Computer Setup or Compaq 
    Diagnostics
    The computer features two Compaq system management utilities:
    ■Computer Setup—A system information and customization 
    utility that can be used even when your operating system is 
    not working or will not load. This utility includes settings that 
    are not available in Windows.
    279362-001.book  Page 1  Monday, July 8, 2002  11:49 AM 
    						
    							2–2Maintenance and Service Guide
    Troubleshooting
    ■Compaq Diagnostics—A system information and diagnostic 
    utility that is used within your Windows operating system. 
    Use this utility whenever possible to:
    ❏Display system information.
    ❏Test system components.
    ❏Troubleshoot a device configuration problem 
    in Windows 2000, Windows XP Professional, or 
    Windows XP Home.
    Using Computer Setup
    Information and settings in Computer Setup are accessed from 
    the File, Security, or Advanced menus:
    1. Turn on or restart the computer. Press 
    F10 while the 
    F10 = ROM Based Setup message is displayed in the 
    lower-left corner of the screen.
    ❏To change the language, press F2.
    ❏
    To view navigation information, press F1.
    ❏
    To return to the Computer Setup menu, press esc.
    2. Select the File, Security, or Advanced menu.
    3. To close Computer Setup and restart the computer:
    ❏Select File > Save Changes and Exit and press enter.
    or
    ❏Select File > Ignore Changes and Exit and press enter.
    4. When you are prompted to confirm your action, press F10.
    279362-001.book  Page 2  Monday, July 8, 2002  11:49 AM 
    						
    							Troubleshooting
    Maintenance and Service Guide2–3
    Selecting from the File Menu
    Table 2-1
    File Menu
    Select To Do This
    System Information
    ■View identification information about the 
    computer, a docking base, and any battery 
    packs in the system.
    ■View specification information about the 
    processor, memory and cache size, and 
    system ROM.
    Save to Floppy Save system configuration settings to a diskette.
    Restore from Floppy Restore system configuration settings from a 
    diskette.
    Restore Defaults Replace configuration settings in Computer Setup 
    with factory default settings. (Identification 
    information is retained.)
    Ignore Changes and Exit Cancel changes entered during the current 
    session, then exit and restart the computer.
    Save Changes and Exit Save changes entered during the current session, 
    then exit and restart the computer.
    279362-001.book  Page 3  Monday, July 8, 2002  11:49 AM 
    						
    							2–4Maintenance and Service Guide
    Troubleshooting
    Selecting from the Security Menu
    Table 2-2
    Security Menu
    Select To Do This
    Setup Password Enter, change, or delete a setup password. 
    (The setup password is called an administrator 
    password in Compaq Computer Security, a 
    program accessed from the Windows Control 
    Panel.)
    Power-on Password Enter, change, or delete a power-on password.
    DriveLock Passwords Enable/disable DriveLock; change a DriveLock 
    User or Master password.
    ✎Drive Lock Settings are accessible only 
    when you enter Computer Setup by 
    turning on (not restarting) the computer.
    Password Options
    Password options can be 
    selected only when a 
    power-on password has 
    been set.Enable/disable:
    ■QuickLock
    ■QuickLock on Standby
    ■QuickBlank
    ✎To enable QuickLock on Standby or 
    QuickBlank, you must first enable 
    QuickLock.
    Device Security Enable/disable:
    ■Ports or diskette drives*
    ■Diskette write*
    ■CD-ROM or diskette startup
    ✎Settings for a DVD-ROM can be 
    entered in the CD-ROM field.
    System IDs Enter identification numbers for the computer, a 
    docking base, and all battery packs in the system.
    *Not applicable to SuperDisk LS-120 drives.
    279362-001.book  Page 4  Monday, July 8, 2002  11:49 AM 
    						
    							Troubleshooting
    Maintenance and Service Guide2–5
    Selecting from the Advanced Menu
    Table 2-3
    Advanced Menu
    Select To Do This
    Language (or press 
    F2) Change the Computer Setup language.
    Boot Options Enable/disable:
    ■QuickBoot, which starts the computer more 
    quickly by eliminating some startup tests. 
    (If you suspect a memory failure and want to 
    test memory automatically during startup, 
    disable QuickBoot.)
    ■MultiBoot, which sets a startup sequence 
    that can include most bootable devices and 
    media in the system.
    Device Options
    ■Enable/disable the embedded numeric 
    keypad at startup.
    ■Enable/disable multiple standard pointing 
    devices at startup. (To set the computer to 
    support only a single, usually nonstandard, 
    pointing device at startup, select Disable.)
    ■Enable/disable USB legacy support for a 
    USB keyboard. (When USB legacy support 
    is enabled, the keyboard works even when a 
    Windows operating system is not loaded.)
    ■Set an optional external monitor or overhead 
    projector connected to a video card in a 
    docking base as the primary device. (When 
    the computer display is set as secondary, 
    the computer must be shut down before 
    undocking from a docking base.)
    279362-001.book  Page 5  Monday, July 8, 2002  11:49 AM 
    						
    							2–6Maintenance and Service Guide
    Troubleshooting
    Device Options 
    (continued)■Change the parallel port mode from 
    Enhanced Parallel Port (EPP, the default 
    setting) to standard, bidirectional, EPP or 
    Enhanced Capabilities Port (ECP).
    ■Set video-out mode to NTSC (default), PAL, 
    NTSC-J, or PAL-M.*
    ■Enable/disable all settings in the SpeedStep 
    window. (When Disable is selected, the 
    computer runs in Battery Optimized mode.)
    ■Specify how the computer recognizes 
    multiple identical docking bases that are 
    identically equipped. (Select Disable to 
    recognize the docking bases as a single 
    docking base; select Enable to recognize 
    the docking bases individually, by serial 
    number.)
    ■Enable/disable the reporting of the 
    processor serial number by the processor to 
    the software.
    HDD Self Test Options Run a quick comprehensive self test on hard 
    drives in the system that support the test 
    features.
    * Video modes vary even within regions. However, NTSC is common in 
    North America; PAL, in Europe, Africa, and the Middle East; NTSC-J, in Japan; 
    and PAL-M, in Brazil. Other South and Central American regions may use 
    NTSC, PAL, or PAL-M.
    Table 2-3
    Advanced Menu (Continued)
    Select To Do This
    279362-001.book  Page 6  Monday, July 8, 2002  11:49 AM 
    						
    							Troubleshooting
    Maintenance and Service Guide2–7
    2.2 Using Compaq Diagnostics
    When you access Compaq Diagnostics, a scan of all system 
    components is displayed on the screen before the Compaq 
    Diagnostics window opens.
    You can display more or less information from anywhere within 
    Compaq Diagnostics by selecting Level on the menu bar.
    Compaq Diagnostics is designed to test Compaq components. If 
    non-Compaq components are tested, the results may be 
    inconclusive.
    Obtaining, Saving, or Printing Configuration 
    Information
    1. Access Compaq Diagnostics by selecting Start > Settings > 
    Control Panel > Compaq Diagnostics.
    2. Select Categories, then select a category from the 
    drop-down list.
    ❏To save the information, select File > Save As.
    ❏To print the information, select File > Print.
    3. To close Compaq Diagnostics, select File > Exit.
    279362-001.book  Page 7  Monday, July 8, 2002  11:49 AM 
    						
    							2–8Maintenance and Service Guide
    Troubleshooting
    Obtaining, Saving, or Printing Diagnostic 
    Test Information
    1. Access Compaq Diagnostics by selecting Start > Settings > 
    Control Panel > Compaq Diagnostics.
    2. Select the Test tab.
    3. In the scroll box, select the category or device you want 
    to test.
    4. Select a test type:
    ❏Quick Test—Runs a quick, general test on each device in 
    a selected category.
    ❏Complete Test—Performs maximum testing on each 
    device in a selected category.
    ❏Custom Test—Performs maximum testing on a selected 
    device.
    ◆To run all tests for your selected device, click 
    Check All.
    ◆To run only the tests you select, click Uncheck All, 
    then select the checkbox for each test you want 
    to run.
    279362-001.book  Page 8  Monday, July 8, 2002  11:49 AM 
    						
    							Troubleshooting
    Maintenance and Service Guide2–9
    5. Select a test mode:
    ❏Interactive Mode—Provides maximum control over the 
    testing process. You determine whether the test was 
    passed or failed, and you may be prompted to insert or 
    remove devices.
    ❏Unattended Mode—Does not display prompts. If errors 
    are found, they are displayed when testing is complete.
    6. Click Begin Testing.
    7. Select a tab to view a test report:
    ❏Status tab—Summarizes the tests run, passed, and failed 
    during the current testing session.
    ❏Log tab—Lists tests run on the system, the number of 
    times each test has run, the number of errors found on 
    each test, and the total run time of each test.
    ❏Error tab—Lists all errors found in the computer with 
    their error codes.
    8. Select a tab to save the report:
    ❏Log tab—Select Save.
    ❏Error tab—Select Save.
    9. Select a tab to print the report:
    ❏Log tab—Select File > Save As, then print the file from 
    your folder.
    279362-001.book  Page 9  Monday, July 8, 2002  11:49 AM 
    						
    							2–10Maintenance and Service Guide
    Troubleshooting
    2.3 Troubleshooting Flowcharts
    Ta b l e  2 - 4
    Troubleshooting Flowcharts Overview
    Flowchart Description
    2.1 Initial Troubleshooting
    2.2 No Power, Part 1
    2.3 No Power, Part 2
    2.4 No Power, Part 3
    2.5 No Power, Part 4
    2.6 No Video, Part 1
    2.7 No Video, Part 2
    2.8 Nonfunctioning Docking Station
    2.9 No Operating System (Os) Loading
    2.10 No Os Loading From Hard Drive, Part 1
    2.11 No Os Loading From Hard Drive, Part 2
    2.12 No Os Loading From Hard Drive, Part 3
    2.13 No Os Loading From Diskette Drive
    2.14 No Os Loading From CD- Or DVD-ROM Drive
    2.15 No Audio, Part 1
    2.16 No Audio, Part 2
    2.17 Nonfunctioning Device
    2.18 Nonfunctioning Keyboard
    2.19 Nonfunctioning Pointing Device
    2.20 No Network Or Modem Connection
    279362-001.book  Page 10  Monday, July 8, 2002  11:49 AM 
    						
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