Dell Latitude LM Reference and Troubleshooting Guide

Dell Latitude LM Manual

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  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 1
    'HOOŠ/DWLWXGHŠ/05HIHUHQFHDQG7URXEOHVKRRWLQJ*XLGH ®
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 2
    . Trademarks used in this text: Dell, the DELL logo, and Latitude are registered trademarks, DellWare is a registered service mark, Dell Dimension is a trademark, and TechFax is a service mark of Dell Computer Corporation; Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft
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    instead of commercial window cleaner. • If your computer gets wet or is damaged, follow the procedures described in Chapter 3, "Troubleshooting Your Computer." If, after following these procedures, you confirm that your computer is not operating properly, contact Dell Computer Corporation. (See
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 4
    lighting around you (such as overhead lights, desk lamps, and the curtains or blinds on nearby windows) to minimize reflections and glare on the display. • When using an external monitor with your computer, set the monitor at a comfortable viewing distance (usually 510 to 610 millimeters [20 to 24
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    is when you are installing memory modules. 1. Turn off your computer and any attached peripherals. 2. Disconnect your computer and peripherals from AC power to reduce the potential for personal injury or shock. 3. Remove the main battery from the main-battery compartment. If necessary, remove the
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    viii
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    for anyone who uses the Dell Latitude LM portable computer. It can be used by both first-time and experienced computer users who want to learn about the features of the computer. This guide also provides basic troubleshooting procedures and instructions for using the diskette-based diagnostics
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    Besides this Reference and Troubleshooting Guide, the following online documentation is included with your computer: The Windows-based System User's Guide contains essential information you need to use your portable computer. Look for the System User's Guide icon in the Dell Accessories Group. The
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    instruction. Example: "Type setup to format the diskette in drive A." • Filenames and directory names are presented in lowercase bold. Examples: autoexec.bat and c:\windows : del [drive:] [[path] can be text that you are instructed to type as part of a your screen: No boot device available • Variables
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    xii
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    Date 2-3 Time 2-3 Hard-Disk Drive 0 2-3 Boot Sequence 2-3 Diskette A 2-4 Total Memory 2-4 Video Memory 2-4 Peripherals Menu Options 2-4 Integrated Peripherals 2-4 Serial Port 2-4 Infrared 2-5 Parallel Mode 2-6 Diskette Mode 2-6 Video Mode 2-6 Touch Pad 2-6 CD-ROM Drive Speed 2-6 xiii
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    Boot 2-8 Power Menu Options 2-8 Power Savings 2-9 AC Power Save 2-9 Standby Time-Out 2-9 Suspend Time-Out 2-10 Suspend-to-Disk Time-Out 2-10 Hard-Disk Drive 2-12 Chapter 3 Troubleshooting Your Computer 3-1 Backing Up Your Files 3-1 Basic Checks 3-1 Checking Connections 3-2 Look and Listen
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    3-11 Troubleshooting a Power Failure 3-12 Total Power Failure When Using the AC Adapter 3-13 Total Power Failure When Using a Battery 3-13 No Power to a Part of the Computer 3-14 Troubleshooting the Diskette Drive 3-14 Troubleshooting the CD-ROM Drive 3-15 Troubleshooting the Hard-Disk Drive
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    Test Limits 4-8 About 4-9 Key-Help 4-9 Quit 4-9 Tests in the Dell Diagnostics 4-9 Error Messages 4-12 RAM Test Group 4-12 Why Run a Diskette Drives Test Group 4-16 Why Run a Diskette Drives Test 4-16 Subtests 4-17 Hard-Disk Drives (Non-SCSI) Test Group 4-17 Why Run a Hard-Disk Drives Test
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    CD ROM Drives Dell Q&A 5-2 System User's Guide 5-2 Reference and Troubleshooting Guide 5-2 World Wide Web on the Internet 5-2 Commercial Online Services 5-3 Dell Diagnostics Program 5-3 AutoTech Service 5-3 TechFax Service 5-3 TechConnect BBS 5-4 Automated Order-Status System 5-4 Problems
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    Appendix B Diagnostic Video Tests B-1 Video Memory Test B-1 Video Hardware Test B-1 Text Mode Character Test B-1 Character Attributes Notices C-1 FCC Class B Notice (U.S. Only C-1 Modem Requirements C-1 Type of Service C-1 Telephone Company Procedures C-2 If Problems Arise C-2 xviii
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    Figure 2-2. Figure 2-3. Figure 2-4. Figure 2-5. Front View of the Portable Computer 1-1 Back View of the Portable Computer 1-2 Main Menu of Setup Program 2-3 Peripherals Menu of Setup Program 2-5 Security Menu of Setup Program 2-7 Power Menu of Setup Program 2-9 Exit Menu of Setup Program
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    Figure 4-1. Figure 4-2. Figure 5-1. Figure B-1. Figure B-2. Figure B-3. AC Adapter and Power Cable 3-2 Checking the Battery 3-2 Checking the Optional Battery 3-2 External Cables 3-2 Diagnostics Menu 4-2 Main Screen of the Dell Diagnostics 4-4 Diagnostics Checklist 5-6 80-Column x 25-Line
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    the online documentation, and tells you where to find help when needed. speakers (2) power/suspend indicator status display panel touch pad hard-disk drive touch pad buttons (2) power button Figure 1-1. Front View of the Portable Computer microphone options bay main battery Introduction 1-1
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    AC) power source if the computer is off; the battery charges in approximately four hours if the computer is on. You can expect three to five hours of battery life with a single battery, and six to ten hours of battery life with two batteries. 1-2 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 21
    of power, suspend-to-disk mode prevents data loss by copying all system data to the hard-disk drive and turning off the computer. • A special options bay that extends the functionality of your computer by letting you use a CD-ROM drive, a diskette drive, or an optional secondary battery. • Support
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    The online Dell Latitude LM System User's Guide installed on your hard-disk drive contains information on the following topics: • System features • Traveling with the computer • Customizing system configuration • Powering the computer and extending battery life • Connecting external devices
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    to monitor and reduce power consumption when your computer is running on battery power. This chapter explains how to access and use the system utilities and the Setup program. System Utilities If Dell installed your operating system, the system utilities are on the hard-disk drive that came with the
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    the computer. The PowerPanel folder or group contains help files. For more information about saving battery power, see the topic titled "Conserving Battery Power" in the online System User's Guide. • Manage the suspend-to-disk file on the hard-disk drive The MS-DOS PHDISK utility in the c:\dell\util
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    Power Exit Date: Time: Hard-Disk Drive 0: Boot Sequence: Diskette A: Total Memory: Video Memory [5/01/1996] [03:06:18] C: 812 MB [Diskette First] 1.44 MB, 3.5" 8 MB 896 KB Item Specific month, day, and year fields. Time TIME sets the computer to the time you specify (usually the current time).
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    Windows 3.x and this option is set to AUTO, the serial port is automatically set to the default, COM1. When mapping the serial port, be careful not to create a conflict with the infrared port. Table 2-1 shows the available serial port mappings. 2-4 Dell Latitude LM Reference and Troubleshooting
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    Power Exit Integrated Peripherals Serial Port: Infrared: Parallel Mode: Diskette Mode: Video Mode: Touch Pad: CD-ROM Drive Speed: [COM 1] [Disabled] [Bi-Directional] [No Reboot] [Simul Mode] [Enabled] [High Performance] Item Specific not occur. If you are using Windows 3.x set this option to COM3,
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    not change the setting). CD-ROM Drive Speed CD-ROM DRIVE SPEED lets you compensate for imbalanced CDs, which can cause the computer to vibrate when the CD-ROM drive is in use. This titled "Security Menu" in the online System User's Guide. 2-6 Dell Latitude LM Reference and Troubleshooting Guide
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    Power Exit Admin Password: Primary Password: Backup Password: Password on Boot: [User Entry] [User Entry] [Execute] [Disabled] Item Specific administrators and service technicians in corporate environments. If an administrator password is assigned, you can use it to access the computer even if
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    computer's power management features. Power settings override corresponding settings in the Power menu of the Setup program. For more information about the PowerPanel, see the topic "Using the PowerPanel" in the online System User's Guide. 2-8 Dell Latitude LM Reference and Troubleshooting Guide
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    AC POWER SAVE lets you enable or disable power saving time-outs when the computer is connected to an AC power source. The default setting for this option is ON. Enable this option to keep all power saving time-outs in effect whether you operate the computer on battery power or from the AC adapter
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    power, Dell recommends that you always set this option to the lowest setting that affords comfortable viewing when the computer is being powered by a battery. You can conserve up to 5 percent of battery power by using the minimum brightness. 2-10 Dell Latitude LM Reference and Troubleshooting Guide
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    increase battery operating time, set the SMART CPU MODE option to ENABLED. When the SMART CPU MODE option is enabled and the microprocessor is inactive, the computer slows the microprocessor to save power. NOTES: Some communications software may not work properly when SMART CPU MODE is enabled. Dell
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    Technologies Ltd. Main Peripherals Security Power Exit Save Changes & Exit Discard Changes & Exit Get Default Values Load Previous Values Save Changes Item Specific Help F1 Help Select Item and then return to other menus to make changes. 2-12 Dell Latitude LM Reference and Troubleshooting Guide
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    Chapter 3 Troubleshooting Your Computer If your Dell Latitude LM is not working as expected, this chapter provides initial checks for solving basic computer problems as well as detailed troubleshooting procedures. It lists system messages and beep codes, their possible causes, and actions you can
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    cable (to AC power source) Figure 3-1. AC Adapter and Power Cable Figure 3-3. Checking the Optional Battery • All cables to external devices parallel port serial port monitor connector keyboard/mouse connector Figure 3-4. External Cables 3-2 Dell Latitude LM Reference and Troubleshooting Guide
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    When you turn on the computer, you can hear the hard-disk drive spin up, and the computer tries to access the boot files from the hard-disk drive or the diskette drive. Call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) Otherwise, see Chapter 4, "Running the
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    A in the Main menu. Then call Dell for technical assistance. (For instructions, see Chapter 5, "Getting Help.") NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the online System User's Guide. 3-4 Dell Latitude LM Reference and Troubleshooting Guide
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    nnnn. set: nnnn Call Dell for technical assistance. (For instructions, see Chapter 5, "Getting Help.") CMOS battery is dead- Replace and run Setup The CMOS battery does not have enough charge to power the computer. Call Dell for technical assistance. (For instructions, see Chapter 5, "Getting
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    the Dell diagnostics to identify a more serious cause. (See Chapter 4, "Running the Dell Diagnostics.") If you are still unable to resolve the problem, call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) . 3-6 Dell Latitude LM Reference and Troubleshooting Guide
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    Cause Action 1-2 Memory module not being See "Troubleshooting Memory" found later in this chapter properly identified or used 1-2-2-3 ROM BIOS checksum failure Run the System Set Test Group in the Dell diagnostics. (See Chapter 4, "Running the Dell Diagnostics," for instructions.) If the
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    (MB) of system memory available for use by programs. Some programs require more than 640 KB of memory and, therefore, cannot be run with conventional memory alone. Other programs run much faster when they have more than 1 MB of memory to use. 3-8 Dell Latitude LM Reference and Troubleshooting Guide
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    support service offered by the manufacturer of the software you are using. Avoiding Interrupt Assignment Conflicts Problems can arise if two devices attempt to use the same interrupt request (IRQ) line. To avoid this type of conflict, check the documentation for the default IRQ line Troubleshooting
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    batteries. Wipe off each battery, and store it in a safe place to dry. 3. If the options bay slot is wet, remove the device from the bay. If the PC Card slot is wet, remove the PC Cards. Put the device and cards in a safe place to dry. 3-10 Dell Latitude LM Reference and Troubleshooting Guide
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    replace the screws below the hard-disk drive door. 13. Reconnect the computer and peripherals to AC power, and turn them on. 14. Does the computer work properly? Yes. The problem is resolved. No. If the computer is able to boot, run the Dell diagnostics to identify computer damage. If the computer
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    Failure When Using the AC Adapter." If the computer is using battery power, see "Total Power Failure When Using a Battery" found later in this section. 6. Call Dell for technical assistance. See Chapter 5, "Getting Help," for instructions. 3-12 Dell Latitude LM Reference and Troubleshooting Guide
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    The problem is resolved. No. Go to step 5. 5. Call Dell for technical assistance. See Chapter 5, "Getting Help," for instructions. Total Power Failure When Using a Battery If an AC adapter is not connected to your computer, the computer's power source is its battery. If the battery status indicator
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    the drive boot the operating system? Yes. The diskette drive problem has probably been resolved. If you continue to experience trouble, call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) No. Go to step 6. 3-14 Dell Latitude LM Reference and Troubleshooting Guide
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    6. Call Dell for technical assistance. See Chapter 5, "Getting Help," for instructions. Troubleshooting the CD-ROM Drive During POST, the computer checks the CD-ROM drive, comparing its characteristics with the system configuration information. (The CD-ROM/hard-disk drive access indicator blinks as
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    computer, and disconnect the external keyboard from the computer. 6. Turn on the computer. Does the computer recognize the built-in keyboard? Allow one minute for the computer to initialize its components. Then use the computer's built-in 3-16 Dell Latitude LM Reference and Troubleshooting Guide
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    off the computer and any attached peripherals. Disconnect all peripherals from the computer. 5. Make sure the AC adapter is firmly connected to the computer and to an AC power source, or verify that a fully charged battery is properly seated in its compartment. Troubleshooting Your Computer 3-17
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    activematrix color display. Yes. The external monitor may be defective. Go to step 7. No. The video controller on the system board may be defective. Call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) 3-18 Dell Latitude LM Reference and Troubleshooting Guide
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    for instructions.) Troubleshooting the Serial and Parallel Ports This section provides a procedure for troubleshooting the computer's serial and parallel ports (shown in Figure 3-4) and any attached peripheral devices. If a system error message indicates a port problem or if equipment connected to
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 54
    . Is the problem resolved? Yes. You probably need a new device. Call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) No. Call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) 3-20 Dell Latitude LM Reference and Troubleshooting Guide
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    Program" in the online System User's Guide. Is the TOUCH PAD option set to problem persists, call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) No. Call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) Troubleshooting Your Computer
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    controller is functioning properly. If the problem persists, call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) No. Call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) 3-22 Dell Latitude LM Reference and Troubleshooting Guide
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    responses or result in misleading error messages. NOTE: If the computer does not boot, call Dell for technical assistance. See Chapter 5, "Getting Help," for instructions. Features of the Dell Diagnostics To troubleshoot components or devices, run the appropriate test (test group or subtest) in
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    diagnostics: 1. Install a CD-ROM drive in the options bay. For instructions, see the topic titled "Options Bay" in the online System User's Guide. Run All Tests RUn Quick Tests Run Specific Tests Exit To MS-DOS Figure 4-1. Diagnostics Menu 4-2 Dell Latitude LM Reference and Troubleshooting Guide
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    tests are running, do not interrupt the tests, do not unplug the AC adapter (or plug one in if you are running the tests from battery power), and do not reboot the computer. Interrupting the tests in any of these ways could lead to the loss of system data. Running the Dell Diagnostics 4-3
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    Quit Press Q to Quit * On the Dell Latitude LM, a CD-ROM drive installed in the options bay is recognized as IDE Drive 1. Figure 4-2. Main Screen of the Dell Diagnostics Confirming the System Configuration Information When you boot the computer from your diagnostics diskette, the diagnostics
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    MENU. If you select ONE, only the highlighted test group is run. If you choose SELECTED, the computer runs the test groups, or subtests selected within the test groups that you selected. (Select test groups of these options is explained in the following subsections. Running the Dell Diagnostics 4-5
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    numeric, you can type in the number. (If you make a mistake, type in zeros until the field is filled with zeros and then start again.) 4-6 Dell Latitude LM Reference and Troubleshooting Guide
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    . DISPLAY, PRINTER, FILE If you have a printer attached to the computer, you can use it to print the error messages, if any, that is run until you press . Maximum Errors Allowed This parameter specifies the maximum number of errors that can occur before testing Dell Diagnostics 4-7
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    in that test group. When you select TEST LIMITS, a new screen appears and the Key Help area lists keys to use with the new screen. 4-8 Dell Latitude LM Reference and Troubleshooting Guide
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    diagnostics diskette from drive A and reboot the computer by pressing . CAUTION: It is important that you quit the diagnostic program correctly because the program writes data to the computer's memory that can cause problems unless properly cleared. Tests in the Dell Diagnostics The
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    Test Write Test Tests a drive that uses fixed, internal disks. Also tests the associated controlling devices. NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the online System User's Guide. 4-10 Dell Latitude LM Reference and Troubleshooting Guide
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    Test Tests the read and write access capability of the network controller registers in the Dell Latitude XP/XPi Advanced Port Replicator. This test group does not apply to the Dell Latitude LM. Software Reset Test Compatibility ID Test Interrupt Test DMA Test FIFO RAM Test Initial Reset
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    read that chapter for instructions on obtaining technical assistance. reason, the diagnostics cannot load into memory. The RAM Test program has switches 10 times without pausing, stopping at a maximum of 20 errors, and outputting the results to Dell Latitude LM Reference and Troubleshooting Guide
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    memory can cause a variety of problems that may not, at first glance, appear to be happening in RAM. If the computer is displaying one or more of the following symptoms, run both the subtests in the RAM Test Group to verify that the memory the software is not at Running the Dell Diagnostics 4-13
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    the display is the visual component of the computer. Before you run the Video Test Group or any of its subtests, you should make sure that the problem is not occurring in the software or caused the program you are running, run the Text Mode 4-14 Dell Latitude LM Reference and Troubleshooting Guide
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    lockup of the computer, rendering the keyboard inoperable, is probably not caused by a problem with the keyboard. memory resident, be sure to clear them out of the computer's memory before running a subtest in the Keyboard Test Group. (Clear them from memory by booting the computer from the Dell
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    screen stating that the computer cannot read from or write to a diskette. • A diskette cannot be properly formatted, or format error messages appear on the screen. • Data on diskettes is corrupted or lost; these problems may be intermittent. 4-16 Dell Latitude LM Reference and Troubleshooting Guide
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    fails during the boot routine. • Seek errors are reported by the operating system or application programs. • An error message appears on the screen stating that the computer cannot read from or write to the harddisk drive. • Data on the hard-disk drive is corrupted or lost; these problems may be
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    Group cannot test a port unless it is enabled. Another possible cause for errors is a problem with the external device itself. Use the documentation that came with the peripheral to troubleshoot it and confirm that it is working properly. 4-18 Dell Latitude LM Reference and Troubleshooting Guide
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    Ports Test? If the diagnostics does not recognize the computer's parallel port, check the PARALLEL MODE system setup option to see if the port has been disabled. For instructions, see the topic titled "Peripherals Menu" in the online System User's Guide. The subtests in the Parallel Ports Test Group
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    Group does not apply to the Dell Latitude LM. Audio Test Group The subtests in the Audio Test Group check the functions of the audio controller and the computer's recording and playback features. Why IRQ line configured for that controller 4-20 Dell Latitude LM Reference and Troubleshooting Guide
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    DMA channel NOTE: The Dual Channel Test is performed only on Dell Latitude XPi systems. • FM Sound Playback Test Tests whether the , type n. The third interactive test, the Record and Playback Test, checks the computer's built-in microphone and speaker(s). When prompted, press any key on the built-
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    4-22 Dell Latitude LM Reference and Troubleshooting Guide
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    with a technical problem, perform the following steps: 1. Review the Dell Q&A. Look for the Dell Q&A icon in the Dell Accessories folder or group in the Windows 95 or Windows 3.x operating system, respectively. 2. Review the remaining documentation that accompanied your Dell computer. To decide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 80
    TechFax service Technical specifications TechFax service, online System User's Guide, Reference and Troubleshooting Guide Troubleshooting, step-by-step instructions Reference and Troubleshooting Guide, Dell diagnostics, Customer Technical Support, AutoTech service Unresolved problems requiring
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 81
    through AutoTech includes: • Specifications and prices for Dell computers cur- rently on sale • Installation instructions for Dell computers and peripherals • Answers to questions about Windows 95 and Windows 3.x • Help in troubleshooting your Dell computer The AutoTech service is available 24 hours
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 82
    the tests you have run and any error messages reported by the Dell diagnostics. 4. Include any accessories that belong with the item(s) being returned (power cables, software diskettes, guides, and so on) if the return is for credit. 5-4 Dell Latitude LM Reference and Troubleshooting Guide
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    can also be accessed in "Diagnostics Checklist" in the online System User's Guide. If you need to call Dell Computer Corporation for assistance, you will be able to inform the support technician of the actions you have taken to resolve the problem. If you must return a piece of hardware to
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 84
    Are you connected to a network? yes no Network, version, and network card Programs and versions Error message or beep code Description of problem and troubleshooting procedures you performed Figure 5-1. Diagnostics Checklist 5-6 Dell Latitude LM Reference and Troubleshooting Guide
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    contact Dell, use the telephone numbers and codes provided in Tables 5-2 and 5-3. Table 5-2 provides the various codes required to make long-distance and international calls. Table 5-3 provides local telephone numbers, area codes, and toll-free numbers, if applicable, for each department or service
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 86
    41 010 44 011 1 City Code 2 1 2 Not required 2 Not required 0 (1) (67) 6103 Not required 1 2 3 2 - - 5 20 - Not required 22 Not required 11 1 8 22 1344 Not required 5-8 Dell Latitude LM Reference and Troubleshooting Guide
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    Table 5-3. Dell Contact Numbers Country Department Name or Service Area Code Local Number or Toll-Free Number Australia (Sydney) Customer Technical Support toll free: 1-800-808-378 Customer Care toll free: 1-800-819-339 Sales toll free: 1-800-808-312 Fax toll free: 1-800-818-341 Austria
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    TechFax toll free: 1-800-950-1329 Czech Republic* (Prague) Technical Support 02 8728 221 Customer Service and Sales 02 879250 TechConnect BBS 02 66710274 * For technical assistance (English only-the call is rerouted to the U.S.). 5-10 Dell Latitude LM Reference and Troubleshooting Guide
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    Table 5-3. Dell Contact Numbers (Continued) Country Department Name or Service Area Code Local Number or Toll-Free Number Denmark* (Horsholm) Customer Care, Technical Support, and Sales toll free: 800 171 62 Finland* (Helsinki) Customer Support and Technical Support toll free: 0800-534 55
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    America call the U.S. for sales and technical assistance. Customer Service 512 728-3619 Fax (Technical Support and Customer Service 512 728-3883 Sales 512 728-4397 SalesFax 512 728 (English only-the call is rerouted to the U.S.). 5-12 Dell Latitude LM Reference and Troubleshooting Guide
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    Table 5-3. Dell Contact Numbers (Continued) Country Department Name or Service Area Code Local Number or Toll-Free Number Luxembourg* Customer Technical Support (Brussels, Belgium toll free: 0800 2109 NOTE: Customers in Luxembourg call Belgium for sales, customer assistance, and technical
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    listings for these countries) Customer Technical Support 60 4 810-4977 Sales 60 4 810-4988 Spain* (Madrid) Technical Support 902.100.130 Customer Service 91 329 10 80 TechConnect BBS English only-the call is rerouted to the U.S.). 5-14 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 93
    979 01 55 TechConnect BBS 022 979 01 88 979 01 89 Customer Service 022 979 01 50 U.K.* (Bracknell) Customer Technical Support (Dell Dimension systems 01344 720109 Customer Technical Support (Other systems 01344 723723 Customer Care 01344 720110 TechFax 01344 723178 TechConnect
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 94
    this telephone number if you are calling for an established Dell national account (have your account number handy), if you work for a governmental agency (local, state, or federal), or if you work for an educational or medical institution. 5-16 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 95
    type I or type II cards or one type III card) Cards supported 3.3-V and 5-V PC Card connector size 68 pins Data width (maximum 32 bits NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the online System User's Guide. Technical Specifications A-1
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 96
    6-pin mini-DIN connector Infrared one infrared port Expansion connector 240 pins Audio microphone headphones/speakers NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the online System User's Guide. A-2 Dell Latitude LM Reference and Troubleshooting
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 97
    Table A-1. Technical Specifications (Continued) Audio Audio type SoundBlasterPro-compatible voice and music functions Audio controller ESS 1688 Conversion 16 bit ( of an abbreviation or acronym used in this table, see the Glossary in the online System User's Guide. Technical Specifications A-3
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 98
    to 135° Dot pitch 0.31 mm Power consumption 2.35 W Controls brightness can be controlled through key combinations NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the online System User's Guide. A-4 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 99
    287.0 mm (11.3 inches) Maximum resolution 800 x 600 pixels; 256 colors Response time (typical 300 ms Operating angle 0° (closed) to 135° Dot pitch 0.29 mm Power consumption 3.4 W Controls brightness and this table, see the Glossary in the online System User's Guide. Technical Specifications A-5
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 100
    Technical Specifications (Continued Power: Supply voltage 5 V ± 10% Supply current 4 mA (maximum operating current) NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the online System User's Guide. A-6 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 101
    features such as charge time, operating time, and life span can vary according to the conditions under which the computer and battery are used. NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the online System User's Guide. Technical Specifications A-7
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 102
    Specifications (Continued) AC Adapter Input voltage 90 to 264 VAC Input current (maximum 1.0 A at 100 VAC, full load Input frequency 47 to 63 Hz Output current 2.6 A (continuous) Output power the Glossary in the online System User's Guide. A-8 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 103
    A-1. Technical Specifications (Continued) Physical (Computer) Height 49.5 mm (1.95 inches) Width 299.9 mm (11.8 inches) Depth 226.7 mm (8.93 inches) Weight (with hard-disk drive, diskette drive, battery, and two PC Card blanks): Dell Latitude LM P-100SD 3.1 kg (6.9 lbs) Dell Latitude LM P-133ST
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 104
    Specifications (Continued) Environmental (Computer) (Continued) Maximum hard-disk drive in head-parked position. NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the online System User's Guide. A-10 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 105
    - Checks the video subsystem's ability to show screens full of solid colors and to display all pixels All of these tests, except the Video Memory Test and the Video Hardware Test, are interactive. These interactive tests display images on the display or monitor and require you to respond with the
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 106
    -column x 25-line character set subtest screen. . Figure B-1. 80-Column x 25-Line Character Set Subtest Screen Figure B-2. 40-Column x 25-Line Character Set Subtest Screen B-2 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 107
    Text Mode Color Test The Text Mode Color Test contains three subtests that check the video subsystem's ability to present color in text modes. The following subsections describe these subtests. Color Attributes Subtest (80 x 25) The 80-column x 25-line color attributes subtest displays a pattern of
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 108
    mode screen displays three chess pieces. Type y if all the chess pieces are identical and displayed correctly; otherwise, type n. Figure B-3 shows part of this screen. B-4 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 109
    Figure B-3. 640 x 480 2-Color Graphics Mode Screen 640 x 480 16-Color Graphics Mode Screen The 640- x 480-pixel 16-color graphics mode screen displays a series of stars in 16 different colors with the name of the color beneath each star. Type y if all the stars are the correct colors; otherwise,
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 110
    you are satisfied with the quality of the colors. Type y if all the pixels were present and if the correct colors were displayed; otherwise, type n. B-6 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 111
    Part 68 of the FCC rules. In accordance with this regulation, the following requirements should be observed. Type of Service Your Dell notebook modem is designed to be used on standard device telephone lines. The modem connects to the telephone line by means of a standard jack called the USOC RJ-11C
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 112
    telephone company notes a problem, it may temporarily discontinue service. When practical, it computer (or other digital apparatus). A statement in the form of "IC Class A ICES-3" or "IC Class B ICES-3" will be located on one of these labels. C-2 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 113
    this case, Dell Computer Corporation). Any repairs or alterations made to this equipment, or equipment malfunctions, may give the telecommunications company cause to request that you disconnect the equipment. For your own protection, ensure that the electrical ground connections of the power utility
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 114
    the Class B rating, your system is considered to be a Class B digital device. NOTE: Class A devices are for business purposes. Class B devices are for nonbusiness purposes. C-4 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 115
    Class A Device Please note that this device has been approved for business purposes with regard to electromagnetic interference. If you find that this device is not suitable for your use, you may exchange it for a device that has been approved for use in residential as well as business environments.
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 116
    C-6 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 117
    including accident, abuse, misuse, problems with electrical power, servicing not authorized by Dell, usage not in accordance with product instructions, failure to perform required preventive maintenance, and problems caused by use of parts and components not supplied by Dell. This warranty does not
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 118
    in the Dell factory; or DellWare products. Monitors, keyboards, and mice that are Dell-branded or that are included on Dell's standard price list are covered under this warranty; all other monitors, keyboards, and mice (including those D-2 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 119
    the DellWare program) are not covered. Batteries for portable computers are covered only during the initial one-year period of this warranty. Coverage During Year One During the one-year period beginning on the invoice date, Dell will repair or replace products covered under this limited warranty
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 120
    repaired or replacement products to you freight prepaid if you use an address in the continental U.S. Shipments to other locations will be made freight collect. NOTE: Before you ship the product(s) to Dell, back up the data on the hard-disk drive Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 121
    including accident, abuse, misuse, problems with electrical power, servicing not authorized by Dell, usage not in accordance with product instructions, failure to perform required preventive maintenance, and problems caused by use of parts and components not supplied by Dell. This warranty does not
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 122
    manuals, diskettes, power cables, and other items included with a product must be returned with it. This Total Satisfaction Return Policy does not apply to DellWare products, which may be returned under DellWare's then-current returns policy. D-6 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 123
    system. See BIOS battery, 1-2 beep codes See also error messages about, 3-6 BIOS, 1-3 boot routine indications, 3-3 bulletin board service. See TechConnect BBS C cables shielded cables, C-1 troubleshooting, 3-2 cache memory, 1-3 calling Dell, 5-7 card. See PC Cards cautions, x CD-ROM drive about
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 124
    diagnostics, 4-12 system error messages, 3-4 ESD, vii expanded memory, 3-9 extended memory, 3-9 F failures technical assistance, 5-1 troubleshooting, 3-1 fixed disk. See hard-disk drive fixing problems, 5-1 floppy drive. See diskette drive 2 Dell Latitude LM Reference and Troubleshooting Guide
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 125
    troubleshooting, 3-15 Hard-Disk Drives (Non-SCSI) Test Group Dell diagnostics, 4-17 help from Dell Computer Corporation, 5-1 help tools AutoTech service, 5-3 Dell diagnostics program, 4-1, 5-3 Dell Q&A, 5-2 TechConnect BBS, 5-4 TechFax service, 5-3 user's documentation, 5-2 I IDE CD ROM Drives Test
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 126
    port POST CD-ROM drive check, 3-15 diskette drive check, 3-14 external keyboard check, 3-16 external monitor check, 3-18 hard-disk drive check, 3-15 memory check, 3-17 power failure AC power, 3-13 battery power, 3-13 cable connections, 3-2 partial, 3-14 troubleshooting, 3-12 power management modes
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 127
    safety instructions ESD prevention, vii general, v working inside your computer, vii SCSI Devices Test Group Dell diagnostics, 4-20 Select option in Dell diagnostics, 4-5 serial devices troubleshooting, 3-20 serial port troubleshooting, 3-19 Serial/Infrared Ports Test Group, 4-18 service, 5-1 Setup
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 128
    problems, 3-1 battery power failure, 3-13 beep codes, 3-6 CD-ROM drive, 3-15 Diagnostics Checklist, 5-6 diskette drive failure during POST, 3-14 display failure, 3-17 dropped or damaged computer, 3-11 external keyboard, 3-16 external monitor, 3-18 failure during RAM count, 3-17 troubleshooting
  • Dell Latitude LM | Reference and Troubleshooting Guide - Page 129
    Group Dell diagnostics, 4-14 video tests Color Palettes Test, B-5 Graphics Mode Test, B-4 Solid Colors Test, B-6 Text Mode Character Test, B-1 Text Mode Color Test, B-3 Text Mode Pages Test, B-4 Video Hardware Test, B-1 Video Memory Test, B-1 W warnings, x warranty information, ix warranty repair
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