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Dell Inspiron 3000 Service Manual

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    							System Overview 1-13
    To u c h  P a d (continued)
    Size:
    Thickness 4.65 mm (0.18 inch) at highest component
    Width  64-mm (2.52-inch) sensor-active area
    Height 47.0-mm (1.85-inch) rectangle 
    with 0.5-mm (0.02-inch) tabs
    Weight 15 g (0.52 ounce) ± 0.5 g (0.001 ounce)
    Power:
    Supply voltage 5 V ± 10%
    Supply current 4 mA (maximum operating)
    Main Battery
    Type lithium ion
    Dimensions:
    Height 23.0 mm (0.9 inch) 
    Depth 161.5 mm (6.4 inches)
    Width 73.4 mm (2.9 inches)
    Weight 0.41 kg (0.9 lb)
    Voltage 14.4 VDC
    Capacity 39 WH
    Charge time (approximate):
    1
    Computer on 2.5 hours
    Computer off 1.5 hours
    Operating time (approximate, 
    with no power management 
    features enabled)
    12.5 to 3.5 hours with one battery; 
    5 to 7 hours with two batteries
    Life span (approximate)
    1500 discharge/charge cycles
    Temperature range:
    Charge 0° to 40°C (32° to 104°F)
    Discharge 0° to 60°C (32° to 140°F)
    Storage –20° to 50°C (–4° to 122°F)
    1Battery performance features such as charge time, operating time, and life span can vary according to 
    the conditions under which the computer and battery are used.
    Table 1-2.  Technical Specifications (continued)     
    						
    							1-14 Dell Inspiron 3000 Series Service Manual
    AC Adapter
    Input voltage 90 to 264 VAC 
    Input current (maximum) 1.5 A at 90 VAC, full load
    Input frequency 47 to 63 Hz
    Output current 2.4 A (continuous)
    Output power 45 W
    Rated output voltage 19 VDC
    Physical:
    Height 29.6 mm (1.17 inches)
    Width 60.0 mm (2.36 inches)
    Depth 105 mm (4.13 inches)
    Weight (with cables)  0.3 kg (0.66 lb)
    Temperature range:
    Operating 5° to 35°C (41° to 95°F) 
    Storage –20° to 50°C (–4° to 122°F)
    Physical (Computer)
    M166ST, M200ST, 
    M233ST, D233ST:
    Height 42 mm (1.65 inches)
    Width 299 mm (11.77 inches)
    Depth 234 mm (9.21 inches)
    Weight
    22.8 kg (6.2 lb)
    M233XT, M266XT, 
    D233XT, D266XT:
    Height 51.5 mm (2.03 inches)
    Width 303 mm (11.93 inches)
    Depth 234 mm (9.21 inches)
    Weight
    23.1 kg (6.8 lb)
    2Includes hard-disk drive, diskette drive, battery, and two PC Card blanks.
    Table 1-2.  Technical Specifications (continued)     
    						
    							System Overview 1-15
    Environmental (Computer)
    Temperature:
    Operating 5° to 35°C (41° to 95°F)
    Storage –20° to 50°C (–4° to 122°F)
    Relative humidity 10% to 90% (noncondensing)
    Maximum vibration:
    Operating 0.5 GRMS using a random-vibration spectrum 
    that simulates air/truck shipment
    Storage 1.1 GRMS using a random-vibration spectrum 
    that simulates air/truck shipment
    Maximum shock:
    3
    Operating 1.52 m/sec (60 inches/sec) 
    (less than or equal to a pulse width of 2 ms) 
    Storage 2.03 m/sec (80 inches/sec)
    (less than or equal to a pulse width of 2 ms)
    Altitude:
    Operating 0 to 3048 m (0 to 10,000 ft)
    Storage 0 to 12,192 m (0 to 40,000 ft)
    3Measured with the hard-disk drive in head-parked position.
    Table 1-2.  Technical Specifications (continued)     
    						
    							1-16 Dell Inspiron 3000 Series Service Manual 
    						
    							Initial Procedures 2-1
    Chapter 2
    Initial Procedures
    T
    his chapter describes initial procedures that can help you diagnose a com-
    puter problem. These procedures can often reveal the source of a problem or 
    indicate the correct starting point for troubleshooting the computer. Dell recom-
    mends that you perform these initial procedures in the order they are presented.
    Initial User Contact   
    When you first contact a user who has a problem, ask the user to describe the 
    problem and the conditions under which it occurs. A verbal description can 
    often indicate the cause of a problem or indicate the appropriate troubleshooting 
    procedure to use. After the user describes the problem, follow these steps: 
    1. Ask the user to back up any data on the hard-disk drive if the computer’s 
    condition permits.
    See the “Maintaining Your Computer” section of the online System’s User’s 
    Guide.
    2. Ask the user to try to duplicate the problem by repeating the operations he 
    or she was performing at the time the problem occurred.
    Can the user duplicate the problem?
    Ye s.  Proceed to step 3.
    No.  Proceed to the next section, “Visual Inspection.”
    3. Observe the user to determine whether he or she is making an error, such as 
    typing an incorrect key combination or entering a command incorrectly.
    Is the problem a result of user error?
    Ye s.  Instruct the user in the proper procedure or direct him or her to the 
    appropriate user documentation for a description of the correct procedure.
    No.  Proceed to the next section, “Visual Inspection.”
    Visual Inspection    
    The visual inspection consists of a quick inspection of the exterior of the com-
    puter and any attached peripherals, including making any necessary corrections. 
    For information about the proper removal and installation of computer  
    						
    							2-2 Dell Inspiron 3000 Series Service Manual
    components, as instructed in the following procedure, see Chapter 4, “Remov-
    ing and Replacing Parts.” 
    To perform a visual inspection, follow these steps:
    1. Determine the power state of the computer.
    If the display is on, go to step 2.
    Check the status display window to determine the status of the computer. If 
    the display is off, press the power key to verify that the computer is not in 
    suspend or standby mode. Then go to step 2.
    2. Turn off any attached peripherals, and then shut down the computer. 
    3. Verify that the exterior of the computer is free of any obvious physical 
    damage.
    4. If the computer is operating from an AC adapter, verify the following:
    a. The AC adapter’s AC power cable is connected to both the AC adapter 
    and the wall outlet. The AC adapter’s LED should be on. 
    b. The AC adapter’s DC power cable is properly connected to the com-
    puter’s AC adapter connector.
    c. The AC adapter and cables are free of any obvious physical damage.
    5. If the computer is operating from battery power, remove any installed bat-
    teries, verify that they are free of any obvious physical damage, and then 
    reinsert the batteries into their respective compartments. Press the test but-
    ton located on each battery to see if there is a charge.
    6. Remove the diskette drive (if installed), verify that it is free of any obvious 
    physical damage, and then reinsert the drive into its compartment.
    7. Remove any installed PC Cards from the PC card slot, verify that they are 
    free of any obvious physical damage, and then reinsert the card(s) into the 
    PC card slot.
    8. If there is a memory area problem and the computer has memory modules, 
    remove the memory modules from the main board, verify that they are free 
    of any obvious physical damage, and then reinstall the modules.
    9. Raise the LCD display, and verify that the computer is free of any 
    obvious physical damage.
    10. Verify that the keyboard is free of any obvious physical damage and that its 
    keys operate freely.
    11. Verify that the touch pad and its associated buttons operate freely.
    12. If an external monitor is connected, verify the following: 
    a. The monitor’s interface cable is properly attached to the external-
    monitor connector on the computer’s I/O panel. CAUTION: Before you proceed with the visual inspection, ensure that
    the user has saved all open files and exited all open application programs
    if possible. 
    						
    							Initial Procedures 2-3
    b. The monitor’s power cable is attached to a power source and is free of 
    any obvious physical damage.
    c. The monitor and its interface cable are free of any obvious physical 
    damage.
    d. The monitor’s controls are set according to the instructions in the docu-
    mentation for the monitor.
    13. If an external mouse is connected, verify the following:
    a. The mouse is properly connected to the keyboard/keypad/mouse con-
    nector on the computer’s I/O panel.
    b. The mouse and its cable are free of any obvious physical damage.
    c. The mouse’s ball and pushbuttons operate freely.
    14. For any attached serial or parallel devices, verify the following:
    a. The device’s interface cable connector is correctly attached to the appro-
    priate port connector on the computer’s I/O panel.
    b. The captive screws that secure the connectors at each end of the inter-
    face cable are secure enough to ensure a firm connection.
    c. The attached device and its interface cable are free of any obvious phys-
    ical damage.
    15. Turn on any attached peripherals and then the computer.
    Does the problem recur?
    Ye s.  Go to the next section, “Observing the Boot Routine.”
    No.  No further steps are necessary.
    Observing the Boot Routine
    After you perform a visual inspection as described in the previous section, boot 
    the computer from a diagnostics diskette and, while the boot routine is running, 
    observe the computer for any indications of problems.
    NOTE: To prevent possible damage to the original diagnostics diskette, always 
    use a backup copy of the diagnostics diskette when servicing a user’s computer. 
    Dell recommends that users make copies of the Dell Diagnostics Diskette. For 
    instructions, see “Before You Start Testing” in Chapter 4 of the Dell Inspiron 
    3000 Reference and Troubleshooting Guide.
    To observe the boot routine, follow these steps:
    1. Turn off the computer and any attached peripherals.
    2. Insert a diagnostics diskette into the diskette drive. Turn on all peripherals 
    and then the computer.
    3. Watch the indicators at the top of the keyboard. Depending on how your 
    computer is configured, after various indicators flash momentarily in the 
    status display panel, some indicators should light up and remain on. 
    						
    							2-4 Dell Inspiron 3000 Series Service Manual
    Do these indicators light up within seconds after the boot routine starts?
    Ye s .  Go to step 4.
    No.  Troubleshoot the power subsystem.
    4. While the boot routine is running, observe the computer for any of the 
    following:
    •Diskette-drive and hard-disk drive access indicator activity
    These indicators light in response to data being transferred to or from the 
    drives. If either of these indicators fails to light during the boot routine, 
    troubleshoot the diskette drive or hard-disk drive subsystem, as 
    appropriate.
    •System error messages
    These messages can indicate problems or provide status information. If a 
    system error message is displayed, refer to Table 3-2. 
    •Beep codes
    A beep code is a series of beeps that indicates an error condition. If the 
    computer emits a beep code, refer to Table 3-1.
    NOTE: The computer beeps once shortly after the system boots. This beep 
    is normal and not part of a beep code. 
    •Any unusual sounds
    5. Observe the display for the Diagnostics Menu of the Dell Diagnostics.
    Does the Diagnostics Menu appear on the display?
    Ye s .  See “Running the Dell Diagnostics” in Chapter 3.
    No.  Go to step 6.
    6. Insert another copy of the diagnostics diskette into the diskette drive, and 
    reboot the computer.
    Does the Diagnostics Menu appear on the display?
    Ye s .  See “Running the Dell Diagnostics” in Chapter 3.
    No.  Go to the next section, “Eliminating Resource Conflicts.”
    Eliminating Resource Conflicts    
    Devices within or connected to the computer may require dedicated memory 
    spaces, interrupt levels, and/or DMA channels. Because different devices can be 
    configured at different times, it is possible that the same resource is assigned to 
    two or more devices.
    Disconnect all peripherals and remove all PC Cards to make sure that the com-
    puter failure is not caused by faulty devices. 
    						
    							Initial Procedures 2-5
    If you suspect that resource conflicts might exist, check the computer and reas-
    sign the resources as necessary. For more information about resolving conflicts, 
    see Chapter 3, “Troubleshooting Your Computer,” in the Reference and Trouble-
    shooting Guide.
    Getting Help    
    If none of the procedures in this chapter reveal the source of the problem or lead 
    to the proper troubleshooting steps for determining the source of the problem, 
    contact Dell for technical assistance. For instructions, see Chapter 5, “Getting 
    Help,” in the Reference and Troubleshooting Guide or the “Contacting Dell” 
    section of the online System User’s Guide. 
    						
    							2-6 Dell Inspiron 3000 Series Service Manual 
    						
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