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Compaq Presario1600.series User Manual

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    							United States     January 2, 2003 
     
    Maintenance & Service Guide
    Presario 1600 Series Portable Computers
    Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
    Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
    Error Codes
    Diagnostic error codes occur if the system recognizes a problem while ru\
    nning 
    the 
    Compaq Diagnostic program. These error codes help identify possibly 
    defective subassemblies. 
    The following tables list error codes, a description of the error condit\
    ion, and 
    the action required to resolve the error condition. 
    IMPORTANT: Retest the system after completing each step. If the problem has been re\
    solved, 
    do not proceed with the remaining steps.
    For assistance in For the removal and replacement of a particular 
    subassembly, see 
    Removal and Replacement Procedures.
    Select error codes by number or type:
    101 through 114Processor Test
    200 through 215Memory Test 
    300 through 304Keyboard Test
    401 through 403Parallel Printer Test
    600 through 699Diskette Drive Test
    1101Serial Test
    1701 through 1736Hard Drive Test
    501 through 516Video Test
    2402 through 2456
    2458 through 2480
    3206Audio Test
    8601 through 8602Touch Pad Pointing Device Test
    3301 through 6623CD Test
    Processor Test Error Codes
    Error 
    Code Description
    Recommended Action
    101-xx CPU test failed Replace the processor and retest.
    102-xx Coprocessor or Weitek Error 1. Run the Configuration and 
    Diagnostics Utilities. 
    2. Replace the processor board and 
    retest.
    103-xx DMA page registers test failed Replace the system board and 
    retest. 
    104-xx Interrupt controller master test 
    failed
    105-xx Port 61 error
    106-xx Keyboard controller self-test 
    failed
    107-xx CMOS RAM test failed
    108-xx CMOS interrupt test failed
    109-xx CMOS clock test failed
    110-xx Programmable timer load data 
    test failed
    113-xx Protected mode test failed
    114-01 Speaker test failed 1. Check system configuration.
    2. Verify cable connections to 
    speaker. 
    3. Replace the system board and 
    retest.
    Memory Test Error Codes
    200-xx Memory machine ID test failed 1. Flash the system ROM and retest.
    2. Replace the system board and 
    retest.
    202-xx
    Memory system ROM checksum 
    failed
    203-xx Write/Read test failed 1. Remove the memory module and 
    retest.
    2. Install a new memory module 
    and retest.
    204-xx
    Address test failed
    211-xx Random pattern test failed
    214-xx Noise test failed
    215-xx Random address test failed
    Keyboard Test Error Codes
    300-xx Failed ID Test 1. Check the keyboard connection. 
    If disconnected, turn off the 
    computer and connect the keyboard.
    2. Replace the keyboard and retest.
    3. Replace the system board and 
    retest.
    301-xx
    Failed Selftest/Interface Test
    302-xx Failed Individual Key Test
    304-xx Failed Keyboard Repeat Test
    Parallel Printer Test Error Codes
    401-xx Printer failed or not connected 1. Connect the printer.
    2. Check power to the printer.
    3. Install the loop-back connector 
    and retest.
    4. Check port and IRQ configuration.
    5. Replace the system board and 
    retest.
    402-xx
    Failed Port Test
    403-xx Printer pattern test failed
    Diskette Drive Test
    600-xx Diskette ID drive types test 
    failed 1. Replace the diskette media and 
    retest.
    2. Check and/or replace the diskette 
    power and signal cables and retest.
    3. Replace the diskette drive and 
    retest.
    4. Replace the system board and 
    retest.
    601-xx
    Diskette format failed
    602-xx Diskette read test failed
    603-xx Diskette write, read, compare 
    test failed
    604-xx Diskette random read test 
    failed
    605-xx Diskette ID media failed
    606-xx Diskette speed test failed
    609-xx Diskette reset controller test 
    failed
    610-xx Diskette change line test failed
    697-xx Diskette type error
    698-xx Diskette drive speed not within 
    limits
    699-xx Diskette drive/media ID error
    1. Replace media.
    2. Run the Configuration and 
    Diagnostics Utilities.
    Serial Test Error Codes
    1101-xx Serial port test failed
    1. Check port configuration
    2. Replace the system board and 
    retest.
    Hard Drive Test Error Codes
    1701-xx Hard drive format test failed 1. Run the Configuration and 
    Diagnostics Utilities and verify drive 
    type.
    2. Verify that all secondary drives 
    have secondary drive capability.
    3. Replace the hard drive and retest. 
    4. Replace the system board and 
    retest.
    1702-xx
    Hard drive read test failed
    1703-xx Hard drive write/read/compare 
    test failed
    1704-xx Hard drive random seek test 
    failed
    1705-xx Hard drive controller test failed
    1706-xx Hard drive ready test failed
    1707-xx Hard drive recalibration test 
    failed
    1708-xx Hard drive format bad track 
    test failed
    1709-xx Hard drive reset controller test 
    failed
    1710-xx Hard drive park head test failed
    1715-xx Hard drive head select test 
    failed
    1716-xx Hard drive conditional format 
    test failed
    1717-xx Hard drive ECC* test failed
    1719-xx Hard drive power mode test 
    failed
    1724-xx Network preparation test failed
    1736-xx Drive monitoring test failed
    * ECC = Error Correction Code Video Test Error Codes
    501-xx Video controller test failed The following apply to error codes 
    501-xx through 516-xx:
    1. Disconnect external monitor and 
    test with internal LCD display.
    2. Replace the display assembly and 
    retest.
    3. Replace the system board and 
    retest.
    502-xx
    Video memory test failed
    503-xx Video attribute test failed
    504-xx Video character set test failed
    505-xx Video 80 × 25 mode 9 × 14 
    character cell test failed
    506-xx Video 80 × 25 mode 8 × 8 
    character cell test failed
    507-xx Video 40 × 25 mode test failed
    508-xx Video 320 × 200 mode color set 
    0 test failed
    509-xx Video 320 × 200 mode color set 
    1 test failed
    510-xx Video 640 × 200 mode test 
    failed
    511-xx Video screen memory page test 
    failed
    512-xx Video gray scale test failed
    514-xx Video white screen test failed
    516-xx Video noise pattern test failed
    2402-xx Video memory test failed The following steps apply to error 
    codes 2402-xx through 2456-xx:
    1. Run the Configuration and 
    Diagnostics Utilities.
    2. Replace the display assembly and 
    retest.
    3. Replace the system board and 
    retest.
    2403-xx
    Video attribute test failed
    2404-xx Video character set test failed
    2405-xx Video 80 × 25 mode 9 × 14 
    character cell test failed
    2406-xx Video 80 × 25 mode 8 × 8 
    character cell test failed
    2408-xx Video 320 × 200 mode color set 
    0 test failed
    2409-xx Video 320 × 200 mode color set 
    1 test failed
    2410-xx Video 640 × 200 mode test 
    failed
    2411-xx Video screen memory page test 
    failed
    2412-xx Video gray scale test failed
    2414-xx Video white screen test failed
    2416-xx Video noise pattern test failed
    2418-xx ECG/VGC memory test failed
    2419-xx ECG/VGC ROM checksum test 
    failed 1. Run the Configuration and 
    Diagnostics Utilities.
    2. Disconnect external monitor and 
    test with internal LCD display.
    3. Replace the display assembly and 
    retest.
    4. Replace the system board and 
    retest.
    2421-xx
    ECG/VGC 640 × 200 graphics 
    mode test failed
    2422-xx ECG/VGC 640 × 350 16 color 
    set test failed
    2423-xx ECG/VGC 640 × 350 64 color 
    set test failed
    2424-xx ECG/VGC monochrome text 
    mode test failed
    2425-xx ECG/VGC monochrome graphics 
    mode test failed
    2431-xx 640 × 480 graphics test failure
    2432-xx 320 × 200 graphics (256 color 
    mode) test failure
    2448-xx Advanced VGA Controller test 
    failed
    2451-xx 132-column Advanced VGA test 
    failed
    2456-xx Advanced VGA 256 Color 
    test failed
    2458-xx Advanced VGA BitBLT test The following step applies to error 
    codes 2458-xx through 2480-xx:
    Replace the system board and 
    retest.
    2468-xx
    Advanced VGA DAC test
    2477-xx Advanced VGA data path test
    2478-xx Advanced VGA BitBLT test
    2480-xx Advanced VGA LineDraw test
    Audio Test Error Codes
    3206-xx Audio System Internal Error Replace the system board and 
    retest.
    TouchPad/Pointing Device Interface Test Error Codes
    8601-xx Mouse test failed 1. Replace the TouchPad and retest.
    2. Replace the system board and 
    retest.
    8602-xx Interface test failed
    CD Drive Test Error Codes
    3301-xx CD drive read test failed 1. Replace the CD and retest.
    2. Verify that the speakers are 
    connected.
    3. Verify that drivers are loaded and 
    properly installed.
    4. Replace the CD drive and retest.
    5. Replace the system board and 
    retest.
    3305-xx
    CD drive seek test failed
    6600-xx ID test failed
    6605-xx Read test failed
    6608-xx Controller test failed
    6623-xx Random read test failed
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    privacy statement
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    							United States     January 2, 2003 
     
    Maintenance & Service Guide
    Presario 1600 Series Portable Computers
    Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
    Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
    System Unit
    System Unit
    Boards
    Display
    Mass Storage 
    Devices
    Cables
    Miscellaneous 
    Hardware 
    and Screws
    DescriptionSpare Part 
    Number
    1. Status Panel 
    w/Cable 293737-001
    2. Keyboards,
    3. Palmrest Cover 
    w/Board and Cable 332226-001
    4. Upper CPU 
    Cover  Assembly 
    w/Cable and Power 
    Switch 
    (Top Plastics)  293739-001
    5. Speaker 
    Assembly, Premium 330979-001
    6. Battery Pack, 
    E.S. NiMH 293861-001
    6. Battery Pack, Li 
    ion 292560-001
    7. CPU Base 
    Assembly (Bottom 
    Plastics), Enclosure  332230-001
     
     
     
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    							United States     January 2, 2003 
     
    Maintenance & Service Guide
    Presario 1600 Series Portable Computers
    Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
    Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
    Boards
    System Unit
    Boards
    Display
    Mass Storage 
    Devices
    Cables
    Miscellaneous 
    Hardware 
    and Screws
    DescriptionSpare 
    Part 
    Number
    1.Heatspreader 298607-
    001
    2.Audio Board 
    w/Jacks 293882-
    001
    3.LCD 
    Interface 
    Board 
    w/Header 293746-
    001
    4.Modem, M+ 
    K-56 K 
    Data/Fax 298974-
    002
    K-56K 
    Data/Fax 138657-
    001
    5.Fan 332228-
    001
    6.Voltage 
    Converter 293748-
    001
    7.System 
    Board, w/o 
    Processor 330982-
    001
    8.System 
    Memory, 
    (SODIMM)
    64-MB 
    32-MB 
    16-MB
     
    332208- 001
    293727- 001
    293726- 001
    LCD Interface 
    (TFT) 
    Connector* 293156-
    001
    LCD Interface 
    (DSTN) 
    Connector* 332232-
    001
    Processor, 
    K/233 MHz
    MMX* 330980-
    001
    *Not Shown
    Back to 
    top
     
     
     
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    							United States     January 2, 2003 
     
    Maintenance & Service Guide
    Presario 1600 Series Portable Computers
    Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
    Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
    Display
    System Unit
    Boards
    Display
    Mass Storage 
    Devices
    Cables
    Miscellaneous 
    Hardware 
    and Screws
    Display Assembly
    DescriptionSpare 
    Part 
    Number
    Display 
    Assembly 
    Model 1625 
    12.1 inch 
    HPA 298495-
    001
    Display 
    Assembly 
    w/o 
    microphone, 
    Model 
    12.1 inch 
    TFT 332224-
    001
     
     
     
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    							United States     January 2, 2003 
     
    Maintenance & Service Guide
    Presario 1600 Series Portable Computers
    Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
    Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
    Mass Storage Devices
    System Unit
    Boards
    Display
    Mass Storage 
    Devices
    Cables
    Miscellaneous 
    Hardware 
    and Screws
     
    DescriptionSpare Part 
    Number
    1. Diskette 
    Drive, 1.44 MB, 
    3.5  330971-001
    2. Hard Drive 
    3.2-GB Model
    Hard Drive 4.0-
    GB Model 330968-001
    330988-001
    3. 24× CD Drive 330967-001
     
     
     
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    							United States     January 2, 2003 
     
    Maintenance & Service Guide
    Presario 1600 Series Portable Computers
    Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
    Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
    Cables
    System Unit
    Boards
    Display
    Mass Storage 
    Devices
    Cables
    n     Miscellaneous 
    Cables Kit
    n     Modem Cables  
    n     AC Power 
    Cords  
    Miscellaneous 
    Hardware and 
    Screws
    Miscellaneous Cables Kit
    Spare Part Number:  332234-001
    Description Quantity
    1a. Cable, 
    CD Drive  1
    1b. Cable, 
    Hard Drive 1
    1c. Cable, 
    Diskette 
    Drive 1
    1d. Cable, 
    TouchPad 
    SW Board 1
    1e. Cable, 
    Fax/Modem 1
    CD Play 
    Board* 1
    *Not Shown
     
    Modem Cables 
    Description Spare 
    Part 
    Number
    Belgium 304398-
    181
    Canada 137256-
    001
    Japan 137256-
    001
    Latin 
    America 137256-
    001
    United 
    States 137256-
    001
    United 
    Kingdom 
    w/adapter 304398-
    031
    France 
    w/adapter 304398-
    051
    Netherlands 
    w/adapter 304398-
    331
    AC Power Cords (Not  Shown)
    Description Spare 
    Part 
    Number
    US/Canada 293831-
    001
    United 
    Kingdom 293831-
    031
    Japan 293831-
    291
    International 293831-
    002
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    privacy statement
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    							United States     January 2, 2003 
     
    Maintenance & Service Guide
    Presario 1600 Series Portable Computers
    Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
    Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
    Miscellaneous Hardware and Screws
    System Unit
    Boards
    Display
    Mass Storage 
    Devices
    Cables
    Miscellaneous 
    Hardware and 
    Screws
    n     Miscellaneous 
    Parts 
    n     Miscellaneous 
    Hardware Kit
    n     Return Kits
     
    Miscellaneous Parts
    Description Spare 
    Part 
    Number
    1. AC 
    Adapter 298239-
    001
    2. Port 
    Replicator  293857-
    001
    Clock Battery 
    (Not Shown) 117099-
    001
    Miscellaneous 
    Screw Kit 
    (Not Shown) 293760-
    001
    Logo Kit (Not 
    Shown) 203727-
    001
    Back to top
    Miscellaneous Hardware Kit
    Spare Part Number: 293761-001
    Description Quantity
    1. Cover, Battery Pack 1 ea.
    2. Cover, Memory Module  1 ea.
    3. Door, PCMCIA 2 ea.
    4. Hinge (Clutch) Cover, Left  1 ea.
    5. Hinge (Clutch) Cover, Right 1 ea.
    6. Rubber Foot  10 ea.
    7. Stand Foot (plastic) 10 ea.
    8. 3.2-GB/4.0-GB Hard Drive 
    Brackets (Left/Right) 1 ea.
    9. Stiffener Reinforce Frame 1 ea.
    10. Stiffener Reinforce Bracket  1 ea.
    Spring Torsion (Not Shown) 10 ea.
    Display Assembly Screw Covers 
    (Not Shown) 10 ea.
    LCD Guide (Not Shown) 1 ea.
    Stand Bracket (Not Shown) 1 ea.
    Back to top
    Return Kits
    Description Quantity
    Return Kit 293799-001
    Carton and Buns - International 293799-002 
     
     
     
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    privacy statement
    legal notices 
    						
    							United States     January 2, 2003 
     
    Maintenance & Service Guide
    Presario 1600 Series Portable Computers
    Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
    Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
    Electrostatic Discharge
    This chapter provides general service information for the Compaq Presari\
    o 
    Series of portable computers. Adherence to the procedures and precaution\
    s 
    described in this chapter is essential for proper service.  The topics c\
    overed 
    include 
    Electrostatic Discharge and its effects, a table of activities that 
    Generate Static and the potential voltages, ways of Preventing Electrostatic 
    Damage to Equipment, and Preventing Damage to the Drive, Grounding 
    Methods, Grounding Work Areas, and Recommended Materials and Equipment 
    to use in the service area. Return to 
    Removal & Replacement Procedures.
    Electrostatic Discharge
    A sudden discharge of static electricity from a finger or other conducto\
    r can 
    destroy static-sensitive devices or microcircuitry. Often the spark is n\
    either 
    felt nor heard, but damage occurs. An electronic device exposed to 
    electrostatic discharge (ESD) may not be affected at all and will work\
     
    perfectly throughout a normal cycle. Or it may function normally for a w\
    hile, 
    then degrade in the internal layers, reducing its life expectancy.
    Networks built into many integrated circuits provide some protection, bu\
    t in 
    many cases, the discharge contains enough power to alter device paramete\
    rs 
    or melt silicon junctions.
    Generating Static
    The table below shows how different activities generate static electrici\
    ty and 
    at different electrostatic voltage levels.
    Typical Electrostatic Voltages
     Relative Humidity
    Event 10%40%55%
    Walking across carpet 35,000 V 15,000 V 7,500 V
    Walking across vinyl floor 12,000 V5,000 V3,000 V
    Motions of bench worker 6,000 V800 V400 V
    Removing DIPS from plastic tubes 2,000 V700 V400 V
    Removing DIPS from vinyl trays 11,500 V4,000 V2,000 V
    Removing DIPS from Styrofoam 14,500 V5,000 V3,500 V
    Removing bubble pack from PCBs 26,000 V20,000 V 7,000 V
    Packing PCBs in foam-lined box 21,000 V11,000 V  5,000 V
    NOTE:  700 volts can degrade a 
    product.
        
    Preventing Electrostatic Damage to Equipment
    Many electronic components are sensitive to ESD. Circuitry design and 
    structure determine the degree of sensitivity. The following proper pack\
    aging 
    and grounding precautions are necessary to prevent damage: 
    n     To avoid hand contact, transport products in the static-safe containers \
    such as tubes, 
    bags, or boxes.
    n     Protect all electrostatic parts and assemblies with conductive or approv\
    ed containers or 
    packaging.
    n     Keep electrostatic sensitive parts in their containers until they arrive\
     at static-free stations.
    n     Place items on a grounded surface before removing them from their contai\
    ner.
    n     Always be properly grounded when touching a sensitive component or assem\
    bly.
    n     Place reusable electronic-sensitive parts from assemblies in protective \
    packaging or 
    conductive foam.
    n     Use transporters and conveyors made of anti-static belts and metal rolle\
    r bushings. 
    Mechanized equipment used for moving materials must be wired to ground a\
    nd proper 
    materials selected to avoid static charging. When grounding is not possi\
    ble, use an ionizer 
    to dissipate electric charges.
    Preventing Damage to Drive
    To prevent static damage to hard drive and diskette drive, use the follo\
    wing 
    precautions: 
    n     Handle drive gently, using static-guarding techniques.
    n     Store drive in the original shipping containers.
    n     Avoid dropping drive from any height onto any surface.
    n     Handle drive on surfaces that have at least one inch of shock-proof foam\
    .
    n     Always place drive PCB assembly side down on the foam.
    Grounding Methods
    The method for grounding must include a wrist strap or a foot step at a \
    grounded work area. When seated, wear a wrist-strap connected to a 
    grounded system. When standing, use footstraps and a grounded floor mat.\
    Static-Shielding Protection Levels
    Method Voltages
    Anti-static Plastic 1,500
    Carbon-Loaded Plastic 7,500
    Metallized Laminate 15,000
    Grounding Work Areas
    To prevent static damage at the work area, use the following precautions\
    : 
    n     Cover the work area with approved static-dissipative material. Provide a\
     wrist strap 
    connected to the work surface and properly grounded tools and equipment.\
    n     Use static-dissipative mats, Heel straps, or air ionizers to give added \
    protection.
    n     Handle electrostatic sensitive components, parts, and assemblies by the \
    case or PCB 
    laminate. Handle them only at static-free work areas.
    n     Avoid contact with pins, leads, or circuitry.
    n     Turn off power and input signals before inserting and removing connector\
    s or test 
    equipment.
    n     Use fixtures made of static-safe materials when fixtures must directly c\
    ontact dissipative 
    surfaces.
    n     Keep work area free of nonconductive materials such as ordinary plastic \
    assembly aids and 
    Styrofoam.
    Use field service tools, such as cutters, screwdrivers, vacuums, that ar\
    e 
    conductive.
    Use a portable field service kit with a static dissipative vinyl pouch t\
    hat folds 
    out of a work mat. Also use a wrist strap and a ground cord for the work\
     
    surface. Ground the cord to the chassis of the equipment undergoing test\
     or 
    repair.
    Grounding Equipment
    Use the following equipment to prevent static electricity damage to the \
    equipment:
    Wrist-straps are flexible straps with a minimum of 1 megohm +/- 10% 
    resistance to the ground cords. To provide proper ground, a strap must b\
    e 
    worn snug against the skin. On grounded mats without banana-plug 
    connectors, connect a wrist strap with alligator clips.
    Heelstraps/Toestraps/Bootstraps can be used at standing work areas and a\
    re 
    compatible with most types of boots and shoes. On conductive floors or 
    dissipative floor mats, use them on both feet with a minimum of 1 megohm\
     
    resistance between operator and ground. To be effective, the conductive \
    strips must be worn in contact with the skin.
    Recommended Materials and Equipment
    Other materials and equipment that are recommended for use in preventing\
     
    static electricity include: 
    n     Anti-static tape
    n     Anti-static smocks, aprons, or sleeve protectors
    n     Conductive bins, and other assembly or soldering aids
    n     Conductive foam
    n     Conductive tabletop work areas with ground cord of 1 megohm of resistanc\
    e
    n     Static dissipative table or floor mats with hard tie to ground
    n     Field service kits
    n     Static awareness labels
    n     Wrist-straps and footwear straps providing 1 megohm +/- 10% resistance
    n     Material handling packages
    n     Conductive plastic bags
    n     Conductive plastic tubes
    n     Conductive tote boxes
    n     Metal tote boxes
    n     Opaque shielding bags
    n     Transparent metallized shielding bags
    n     Transparent shielding tubes
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    							United States     January 2, 2003 
     
    Maintenance & Service Guide
    Presario 1600 Series Portable Computers
    Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
    Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
    Service Considerations
    Listed below are some of the considerations that you should keep in mind\
     
    during the disassembly and assembly of the computer.
    Tool and Software Requirements
    To service the computer, you need the following: 
    l     Torx T-9 screwdriver
    l     3/16-inch and 7/32-inch nut drivers (for screw locks and standoffs)
    l     Small, standard screwdriver
    l     Small, Phillips screwdriver
    l     Diagnostics software
    l     Service Kit
    Screws
    The screws used in the computer are not interchangeable. If an incorrect\
     
    screw is used during the reassembly process, it can damage the unit. Com\
    paq 
    strongly recommends that all screws removed during disassembly be kept 
    with the part that was removed, then returned to their proper locations.\
    IMPORTANT:  As each subassembly is removed from the computer, place it away from the\
     
    work area to prevent damage to the subassembly. 
    Return to Removal & Replacement Procedures.
     
     
     
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    Maintenance & Service Guide
    Presario 1600 Series Portable Computers
    Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
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    Cable Positions
    This section covers types of cables and installation instructions for hard drive 
    cable, 
    diskette drive, ZIF connectors, CD cables and speaker cable 
    installation.
    Cables and Connectors
    Most cables used throughout the unit are ribbon cables. Cables must be 
    handled with extreme care to avoid damage. Apply only the tension requir\
    ed 
    to seat or unseat the cables during insertion or removal from the connec\
    tor. 
    Handle cables by the connector whenever possible. In all cases, avoid 
    bending, twisting, or tearing the cables, and ensure that the cables are\
     routed 
    in such a way that they cannot be caught or snagged by parts being remov\
    ed 
    or replaced.
    CAUTION:  When servicing this computer, ensure that cables are 
    placed in their proper location during the reassembly process. 
    Improper cable placement can damage the computer. 
    Cables
    Use the following precautions when handling cables to avoid damage to th\
    e 
    cable or computer: 
    n     Always handle cables by their connectors.
    n     Avoid bending, twisting, or pulling on the cables.
    n     Apply minimum required force when seating or unseating the cables from t\
    heir connectors.
    n     Place the cables in such a manner that they cannot be caught or snagged \
    by parts being 
    removed or replaced.
    n     Handle flex cables with extreme care; they can tear easily.
    CAUTION:  When servicing these computers, ensure that cables 
    are placed in their proper location during the reassembly process. 
    Improper cable placement can cause severe damage to the unit.
    Plastic Parts
    Plastic parts can be damaged by the use of excessive force during 
    disassembly and reassembly. When handling the plastic parts, use care. A\
    pply 
    pressure only at the points designated in the maintenance instructions.
    ZIF Connectors
    Compaq uses a zero insertion force (ZIF) connector for the keyboard ca\
    ble to 
    the system board. To remove a cable from a ZIF connector, lift both corn\
    ers 
    of the ZIF connector and slide simultaneously with constant light force.\
     Then 
    remove the cable as shown below.
    CAUTION:  A ZIF connector and its attached cable can be easily 
    damaged. Handle only the connector slide when removing or 
    replacing a cable. Never pull or twist on the cable while it is 
    connected.
    Removing a Cable from a ZIF Connector
    Position the ribbon cable for the 3.2-GB or 4.0-GB hard drive as shown below.
    3.2-GB or 4.0-GB Hard Drive Data Cable Installation
    Position the ribbon cable for the CD drive as shown below.
    CD Drive Data Cable Installation
    Position the ribbon cable for the diskette drive as shown below.
    Diskette Drive Data Cable Installation
    Position the cable for the speaker assembly as shown below.
    Speaker Assembly Cable Installation
     
     
     
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