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__________________ Information in this manual is subject to change without notice. © 19941998 Dell Computer Corporation. All rights reserved. Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and Latitude are registered trademarks of Dell Computer Corporation; Microsoft, Windows, Windows NT, and MS-DOS are registered trademarks of Microsoft Corporation; Intel and Pentium are registered trademarks and MMX is a trademark of Intel Corporation; IBM is a registered trademark of International Business Machines Corporation. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own. August 1998 P/N 54724 Rev. A02
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System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Physical Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indicator Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drive Activity Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keyboard Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Controlling Computer Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interrupt Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1-2 1-4 1-4 1-4 1-4 1-5 1-5 1-6 1-7
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Initial User Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Observing the Boot Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Eliminating Resource Conflicts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Getting Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2-2 2-4 2-6 2-6
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POST Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery Failure Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Running the Dell Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3-4 3-5 3-9
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Recommended Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Precautionary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Screw Identification and Tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 ZIF Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 Field-Replaceable Parts and Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Removing Field-Replaceable Parts and Assemblies . . . . . . . . . . . . . . . . . 4-14
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Hard-Disk Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Memory Module Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keyboard Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Palmrest Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Touch-Pad Interface Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Display Assembly Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Display Assembly Bezel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Display Assembly Latch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LCD Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1-Inch LCD Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.3-Inch LCD Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LCD Inverter Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1-Inch LCD Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.3-Inch LCD Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Display-Assembly Interface Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . LCD Display Hinge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Display-Assembly Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bottom Case Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modular Bay Devices (Diskette Drive, CD-ROM Drive, Battery, or Travel Module) . . . . . . . . . . . . . . . . . . . . Audio Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Audio Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bottom Case Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Module Latch Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exhaust Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I/R Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reserve Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-15 4-16 4-17 4-18 4-20 4-21 4-23 4-24 4-25 4-27 4-29 4-30 4-31 4-31 4-32 4-35 4-35 4-36 4-37 4-38 4-39 4-40 4-42 4-43 4-44 4-45 4-46 4-47 4-48 4-50 4-51 4-52
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Figure 1-1. Figure 1-2. Figure 1-3. Figure 1-4. Figure 3-1. Figure 4-1. Figure 4-2. Front View of the Computer . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Back View of the Computer . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Bottom View of the Computer . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Indicator Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Battery Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Computer Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Main Battery Assembly Removal . . . . . . . . . . . . . . . . . . . . . . 4-3
vi
Figure 4-3. Figure 4-4. Figure 4-5. Figure 4-6. Figure 4-7. Figure 4-8. Figure 4-9. Figure 4-10. Figure 4-11. Figure 4-12. Figure 4-13. Figure 4-14. Figure 4-15. Figure 4-16. Figure 4-17. Figure 4-18. Figure 4-19. Figure 4-20. Figure 4-21. Figure 4-22. Figure 4-23. Figure 4-24. Figure 4-25. Figure 4-26. Figure 4-27. Figure 4-28. Figure 4-29. Figure 4-30. Figure 4-31. Figure 4-32. Figure 4-33.
Screw Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Disconnecting an Interface Cable . . . . . . . . . . . . . . . . . . . . . . 4-4 Exploded View--Computer . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14 Hard-Disk Drive Assembly Removal . . . . . . . . . . . . . . . . . . . 4-15 Memory Module Cover Removal . . . . . . . . . . . . . . . . . . . . . 4-16 Memory Module Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17 Removing the Keyboard Assembly Screws . . . . . . . . . . . . . 4-18 Keyboard Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . 4-19 Back Cover Assembly Removal . . . . . . . . . . . . . . . . . . . . . . 4-20 Palmrest Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . 4-21 Touch-Pad Interface Module Removal . . . . . . . . . . . . . . . . . 4-23 Exploded View--Display Assembly (12.1-Inch Display Shown) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25 Exploded View--Display Assembly (13.3-Inch Display Shown) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26 Display Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27 Display Assembly Bezel Removal (12.1-Inch Display Shown). . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29 LCD Panel Removal (12.1-Inch Display) . . . . . . . . . . . . . . . . 4-31 LCD Panel Removal (13.3-Inch Display) . . . . . . . . . . . . . . . . 4-32 Magnet Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34 LCD Inverter Board Removal (12.1-Inch Display) . . . . . . . . . 4-35 LCD Inverter Board Removal (13.3-Inch Display) . . . . . . . . . 4-36 Display-Assembly Interface Cable Removal (12.1-Inch Display Shown). . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37 Bottom Case Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41 Modular Bay Device Removal . . . . . . . . . . . . . . . . . . . . . . . . 4-42 Audio Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44 Bottom Case Bracket Removal . . . . . . . . . . . . . . . . . . . . . . 4-45 Module Latch Assemblies Removal . . . . . . . . . . . . . . . . . . . 4-46 Left Slider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47 System Board Assembly Removal . . . . . . . . . . . . . . . . . . . . 4-48 Exhaust Fan Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50 I/R Board Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51 Reserve Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . 4-52 Interrupt Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 POST Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Battery Failure Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 System Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Parts and Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
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Table 1-1. Table 1-2. Table 3-1. Table 3-2. Table 3-3. Table 4-1.
vii
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A prerequisite for using this manual to service Dell computer systems is a basic knowledge of IBM®-compatible PCs and prior training in IBM-compatible PC troubleshooting techniques. In addition to information provided in this manual and the User's Guide that came with the system, Dell provides the Diagnostics and Troubleshooting Guide for troubleshooting procedures and instructions on using the Dell diagnostics to test the computer system.
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Throughout this manual, there may be blocks of text printed in bold type or in italic type. These blocks are warnings, cautions, and notes, and they are used as follows:
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NOTE: A NOTE provides helpful information about using the computer system.
viii
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This chapter provides an overview of the features and specifications of the Dell® Latitude® CP and CPi portable computers.
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In addition to the standard features found in a Dell portable computer, the Latitude CP and CPi include the following new features:
A Mobile Intel® Pentium® II microprocessor 233, 266, or 300 MHz or an
Intel Pentium microprocessor with MMX technology 166, 200, or 233 MHz, with 32 KB of internal cache.
A 512-KB or 256-KB pipelined-burst SRAM external cache. PCI bus architecture that increases system performance. A PC Card controller that supports the CardBus standard for 32-bit data
transfer.
Support for up to 128 MB of system memory. A CD-ROM drive for use in the modular bay. Support for a hard-disk drive in the modular bay. A 13.3-inch XGA (1024 x 768) active-matrix (TFT) color display, a 12.1-inch
SVGA (800 x 600) active-matrix (TFT) color display, or a 12.1-inch SVGA (800 x 600) HPHC dual-scan (STN) color display.
A Sound Blaster Pro-compatible integrated audio controller with voice and
music functions.
Support for a zoom video PC Card in the upper PC Card connector. Jacks for connecting external speakers or headphones, a microphone, and
record/playback devices to the computer.
Software wavetable support and SRS 3-D audio control. A lithium ion battery with a built-in charge gauge and ExpressCharge technology that charges the battery in about an hour (when the computer is in suspend mode [or standby mode for the Microsoft® Windows® 98 operating system] or turned off).
Support for a battery in the modular bay. When used with the computer's
main battery, a second battery doubles battery operating time.
System Overview
1-1
Two power management modessuspend mode (or standby mode in
Windows 98) and suspend-to-disk modethat help you conserve battery power.
Automatic thermal management that slows the microprocessor or starts a
small fan when necessary.
An infrared port compatible with IrDA 1.1 (Fast IR) and 1.0 standards, and a
USB connector that supports stand-alone and hub devices.
A PC Card slot with two connectors that support 5-V and 3.3-V PC Cards. A BIOS that resides in flash memory and that can be upgraded by diskette
if required.
A PS/2-compatible touch pad with full mouse functionality. Hardware and software support for the Dell Latitude C/Port Advanced Port
Replicator (APR) and Latitude C/Dock Expansion Station. For a complete list of system features, see "Technical Specifications" found later in this chapter.
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display latch display
microphone
power button keyboard
indicator panel
touch pad
battery bay touch pad buttons (2) modular bay cooling-fan air intake AC adapter connector audio jacks (3) speakers (2)
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1-2
Dell Latitude CP and CPi Service Manual
fan outlet parallel connector USB connector docking connector door docking connector serial connector monitor connector PS2 connector infrared port speaker security cable slot hard-disk drive
PC Card slot
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memory module cover
modular bay latch
battery bay latch
hard-disk drive
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System Overview
1-3
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power indicator drive activity indicator battery indicator
numbers lock indicator
capitals lock indicator
scroll lock indicator
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The Latitude CP or CPi computer has three indicators on the display assembly's indicator panel and three on the keyboard assembly. The following subsections describe the functions of these indicators.
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The power indicator is a green LED. After the computer is turned on, the power indicator lights up constantly to indicate that the computer is receiving stable power. If the power indicator is off, the computer is either in suspend mode (or standby mode for Windows 98), suspend-to-disk mode, or off.
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The drive activity indicator is a green LED. The indicator lights up when data is being transferred to or from the hard-disk drive, or to or from a diskette drive, CD-ROM drive, or other device installed in the modular bay.
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The battery indicator displays the following conditions:
The indicator turns green while the AC adapter is fast-charging. During the
normal charging cycle, the indicator remains on without blinking. After the battery is fully charged, the battery indicator blinks green to indicate that the AC adapter is providing a maintenance (trickle) charge to keep the battery at full capacity.
1-4
Dell Latitude CP and CPi Service Manual
The system supports two low-battery warning codes:
The first low-battery warning occurs when the main battery has 15 minutes or less of charge remaining. The amber battery indicator blinks once per second. The second low-battery warning occurs when the main battery has 5 minutes or less of charge remaining. The amber battery indicator lights up without blinking. If no user activity occurs within 15 seconds, the system automatically enters suspend (or standby mode for Windows 98) or suspend-to-disk.
Several error codes indicate temporary or fatal battery conditions. Refer to
"Battery Failure Codes" in Chapter 3 for a listing of these codes.
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The keyboard controls the operation of the numbers lock (Num Lock) indicator, the capitals lock (Caps Lock) indicator, and the Scroll Lock indicator, all of which are visible through openings at the top of the keyboard. These indicators are associated with the key, the key, and the key, respectively; when lit, the LEDs indicate the active state of their respective keys. These indicators also blink to indicate error codes. Refer to "POST Error Codes" in Chapter 3 for a listing of these codes.
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Pressing the power button on the Latitude CP or CPi computer, C/Dock Expansion Station, or the C/Port APR initiates a change from the current power state to a different state. The protocols for the power state changes are as follows:
If the computer is off (power indicator is off) and the display is open, pressing the power button initiates a boot operation.
If the computer is on (power indicator is on) and the display is open but off,
pressing the power button causes the display to turn on.
If the computer is in suspend mode (or standby mode for Windows 98)
(power indicator is off), pressing the power button turns on the computer. (A modem ring or system alarm event will also turn on the computer.)
Pressing the power button for 4 seconds causes the computer to power
down.
If the computer is in suspend mode (or standby mode for Windows 98)
(power indicator is off), the display is closed, and no external monitor is attached, pressing the power button on the Latitude C/Port APR or C/Dock Expansion Station has no effect on the power state. The computer remains in suspend mode (or standby mode for Windows 98).
If the computer is in suspend-to-disk mode and the display is open or an
external monitor is connected, pressing the power button causes the computer to initiate the resume-from-disk operation.
System Overview
1-5
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IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 IRQ8 IRQ9 IRQ10 IRQ11 IRQ12 IRQ13 IRQ14 IRQ15
Generated by the system timer Generated by the keyboard controller to signal that the keyboard output buffer is full Generated internally by the interrupt controller to enable IRQ8 through IRQ15 Available for use by a PC Card unless the built-in serial port or infrared port is configured for COM2 (the default) or COM4 Available for use by a PC Card unless the built-in serial port or infrared port is configured for COM1 (the default) or COM3 Available for use by the audio controller Generated by the diskette drive controller to indicate that the diskette drive requires the attention of the microprocessor Available for use by a PC Card or audio controller if the built-in parallel port is disabled Generated by the system I/O controller's RTC Generated by the video controller Available for use by a PC Card or audio controller unless the C/Port APR or C/Dock Expansion Station is attached Generated by the USB and PC Card controllers; available for use by a PC Card Generated by the keyboard controller to indicate that the output buffer of the integrated touch pad or external PS/2 mouse is full Reserved for use by the internal coprocessor Generated by the hard-disk drive to indicate that it requires the attention of the microprocessor Generated by the CD-ROM drive in the modular bay to indicate that the drive requires the attention of the microprocessor
1-6
Dell Latitude CP and CPi Service Manual
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Microprocessor: Latitude CPi D300XT Latitude CPi D266XT Latitude CPi D233ST . . . . . . . . Latitude CP M233XT Latitude CP M233ST Latitude CP M233SD Latitude CP M166ST . . . . . . . . Bus architecture . . . . . . . . . . . . . . . Internal cache memory . . . . . . . . . External cache memory: Latitude CPi D300XT Latitude CPi D266XT Latitude CPi D233ST Latitude CP M233XT Latitude CP M233ST Latitude CP M233SD . . . . . . . . Latitude CP M166ST . . . . . . . . Math coprocessor . . . . . . . . . . . . .
Mobile Intel Pentium II microprocessor 300, 266, or 233 MHz
Intel Pentium microprocessor with MMX technology 233 or 166 MHz PCI 32 KB
512 KB pipelined-burst SRAM 256 KB pipelined-burst SRAM internal to the microprocessor
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System chip set: Latitude CPi D300XT Latitude CPi D266XT Latitude CPi D233ST . . . . . . . . Latitude CP M233XT Latitude CP M233ST Latitude CP M233SD Latitude CP M166ST . . . . . . . . Microprocessor data bus width. . . . DRAM bus width . . . . . . . . . . . . . . Address bus width . . . . . . . . . . . . . Security EEPROM . . . . . . . . . . . . . Flash EPROM . . . . . . . . . . . . . . . . Local bus . . . . . . . . . . . . . . . . . . . . PCI bus . . . . . . . . . . . . . . . . . . . . .
Intel 440BX PCIset
Intel Mobile 430TX PCIset 64 bits 64 bits 32 bits 256 bytes 2 Mbits 66 MHz 33 MHz
System Overview
1-7
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PC Card controller . . . . . . . . . . . . . PC Card connectors . . . . . . . . . . . . Texas Instruments PCI1131 CardBus controller two (supports type I and type II cards in any combination; supports type III cards only in the lower connector)1 3.3-V and 5-V cards 68 pins
Cards supported . . . . . . . . . . . . . . PC Card connector size . . . . . . . . . Data width (maximum): PCMCIA . . . . . . . . . . . . . . . . . . CardBus . . . . . . . . . . . . . . . . . .
16 bits 32 bits
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Memory module sockets. . . . . . . . Memory module type and capacities2 . . . . . . . . . . . . . . . . . . . Standard RAM . . . . . . . . . . . . . . . . Maximum RAM . . . . . . . . . . . . . . . Memory access time: tRAC . . . . . . . . . . . . . . . . . . . . tCAC . . . . . . . . . . . . . . . . . . . . BIOS address. . . . . . . . . . . . . . . . . 60 ns 15 ns F000:0000F000:FFFF two 16-, 32-, and 64-MB 3.3-V EDO SODIMMs one 16-MB memory module or one 32-MB memory module 128 MB
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Serial (DTE) . . . . . . . . . . . . . . . . . . Parallel . . . . . . . . . . . . . . . . . . . . . . Video . . . . . . . . . . . . . . . . . . . . . . . PS/2 . . . . . . . . . . . . . . . . . . . . . . . .
1
one 9-pin connector; 16550-compatible, 16-byte buffer one 25-hole connector; unidirectional, bidirectional, or ECP one 15-hole connector one 6-hole mini-DIN (does not support more than one device at a time)
On systems using the Microsoft Windows 95 or Windows 98 operating system, a zoom video card can be used only in the upper connector. The Microsoft Windows NT ® 4.0 operating system does not support zoom video. The Latitude CP and CPi do not support memory modules from previous models of Dell portable computers, such as the Latitude XP XPi, XPi CD, and LM. ,
2
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Dell Latitude CP and CPi Service Manual
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Infrared . . . . . . . . . . . . . . . . . . . . . Audio . . . . . . . . . . . . . . . . . . . . . . . one port compatible with IrDA Standards 1.1 (Fast IR) and 1.0 (Slow IR) microphone-in; line-in/audio-in; headphones/speakers one 200-pin connector for Latitude C/Port APR or C/Dock Expansion Station one four-pin connector
Docking . . . . . . . . . . . . . . . . . . . . . Universal Serial Bus . . . . . . . . . . . .
$XGLR
Audio controller . . . . . . . . . . . . . . . Audio type . . . . . . . . . . . . . . . . . . . Stereo . . . . . . . . . . . . . . . . . . . . . . FM music synthesizer . . . . . . . . . . Interfaces: Internal. . . . . . . . . . . . . . . . . . . External . . . . . . . . . . . . . . . . . . ISA bus stereo line-in/audio-in minijack; microphone-in minijack; headphones/speakers-out minijack two 8-ohm speakers 1 W into 8 ohms stereo volume can be controlled with key combinations, software application menus, the Speaker window in the Dell Control Center, or the System Setup program Crystal 4237B Sound Blaster Pro-compatible voice and music functions 16 bit (analog-to-digital and digital-to-analog) 20-voice, 72-operator
Speakers . . . . . . . . . . . . . . . . . . . . Speaker/headphones amplifier . . . Controls . . . . . . . . . . . . . . . . . . . . .
9LGHR
Video type . . . . . . . . . . . . . . . . . . . Video controller . . . . . . . . . . . . . . . Integrated video memory . . . . . . . hardware-accelerated, 128-bit PCI NeoMagic 2160 2 MB
System Overview
1-9
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Type . . . . . . . . . . . . . . . . . . . . . . . . Dimensions (active area): Height . . . . . . . . . . . . . . . . . . . Width . . . . . . . . . . . . . . . . . . . . Diagonal . . . . . . . . . . . . . . . . . . Maximum resolution/colors . . . . . . Response time (typical) . . . . . . . . . Operating angle . . . . . . . . . . . . . . . Dot pitch . . . . . . . . . . . . . . . . . . . . Power consumption: Panel (typical). . . . . . . . . . . . . . Backlight . . . . . . . . . . . . . . . . . Controls . . . . . . . . . . . . . . . . . . . . .
active-matrix color (TFT)
184.5 mm (7 inches) .26 246.0 mm (9.68 inches) 307 mm (12.10 inches) .5 800 x 600 pixels; 262,144 colors 50 ms 0° (closed) to 180° 0.31 mm
0.7 W 1.6 or 2.4 W brightness can be controlled with key combinations, the Display window in the Dell Control Center, or the System Setup program
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Type . . . . . . . . . . . . . . . . . . . . . . . . Dimensions (active area): Height . . . . . . . . . . . . . . . . . . . Width . . . . . . . . . . . . . . . . . . . . Diagonal . . . . . . . . . . . . . . . . . . Maximum resolution/colors . . . . . . Response time (typical) . . . . . . . . . Operating angle . . . . . . . . . . . . . . . Dot pitch . . . . . . . . . . . . . . . . . . . . Power consumption: Panel (typical). . . . . . . . . . . . . . Backlight . . . . . . . . . . . . . . . . . Controls . . . . . . . . . . . . . . . . . . . . .
active-matrix color (TFT)
202.8 mm (7 inches) .98 270.3 mm (10.64 inches) 337 mm (13.3 inches) .8 1024 x 768 pixels; 262,144 colors 50 ms 0° (closed) to 180° 0.26 mm
1.7 W 2.6 W brightness can be controlled with key combinations, the Display window in the Dell Control Center, or the System Setup program
1-10
Dell Latitude CP and CPi Service Manual
7DEOH 7HFKQLFDO 6SHFLILFDWLRQV
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Type . . . . . . . . . . . . . . . . . . . . . . . Dimensions (active area): Height . . . . . . . . . . . . . . . . . . . Width . . . . . . . . . . . . . . . . . . . . Diagonal . . . . . . . . . . . . . . . . . . Maximum resolution/colors . . . . . . Response time (typical) . . . . . . . . . Operating angle . . . . . . . . . . . . . . . Dot pitch . . . . . . . . . . . . . . . . . . . . Power consumption: Panel (typical) . . . . . . . . . . . . . . Backlight. . . . . . . . . . . . . . . . . . Controls . . . . . . . . . . . . . . . . . . . . .
HPHC dual-scan color (STN)
184.5 mm (7 inches) .26 246.0 mm (9.68 inches) 307 mm (12.10 inches) .5 800 x 600 pixels; 262,144 colors 150 ms 0° (closed) to 180° 0.31 mm
0.63 W 3.2 W brightness and contrast can be controlled with key combinations, the Display window in the Dell Control Center, or the System Setup program
7RXFK 3DG
Interface. . . . . . . . . . . . . . . . . . . . . X/Y position resolution (graphics table mode) . . . . . . . . . . Size: Thickness . . . . . . . . . . . . . . . . . Width (sensor-active area) . . . . Height . . . . . . . . . . . . . . . . . . . Weight . . . . . . . . . . . . . . . . . . . Power: Supply voltage . . . . . . . . . . . . . Supply current . . . . . . . . . . . . .
PS/2-compatible 20 points/mm (500 points/inch)
2.5 mm (0.10 inch) at highest component 61.8 mm (2.43 inches) at bottom; 58.6 mm (2.31 inches) at top 48.8-mm (1.92-inches) rectangle 8 g (0.28 oz) ± 0.5 g (0.02 oz)
5 V ± 10% 4 mA (maximum operating)
System Overview
1-11
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Number of keys . . . . . . . . . . . . . . . 87 (U.S., Canada, Korea, Thailand, and locations that use traditional Chinese); 88 (Europe); 90 (Japan) 3.0 mm + 0.5 mm/-0.2 mm (0.12 inch + 0.02 inch/-0.008 inch) 19.05 mm ± 0.3 mm (0.75 inch ± 0.012 inch) QWERTY, AZERTY, Kanji
Key travel . . . . . . . . . . . . . . . . . . . . Key spacing . . . . . . . . . . . . . . . . . . Layout . . . . . . . . . . . . . . . . . . . . . .
%DWWHU\
Type . . . . . . . . . . . . . . . . . . . . . . . Dimensions: Height . . . . . . . . . . . . . . . . . . . Depth . . . . . . . . . . . . . . . . . . . . Width . . . . . . . . . . . . . . . . . . . . Weight . . . . . . . . . . . . . . . . . . . . . . Voltage . . . . . . . . . . . . . . . . . . . . . . Capacity . . . . . . . . . . . . . . . . . . . . . Charge time (approximate):3 Computer on . . . . . . . . . . . . . . Computer off or in suspend mode (or in standby mode for Windows 98) . . . . . . . . . . . . . . Life span (approximate)3 . . . . . . . . Temperature range: Charge . . . . . . . . . . . . . . . . . . . Storage . . . . . . . . . . . . . . . . . .
3
smart lithium ion
21.5 mm (0.83 inch) 88.5 mm (3.48 inches) 139.0 mm (5.47 inches) 0.4 kg (0.88 lb) 16.8 VDC 43 WH
75 minute
1 hour 500 discharge/charge cycles; 2000 partial discharge/charge cycles
0° to 40°C (32° to 104°F) 20° to 60°C (4° to 140°F)
Battery performance features such as charge time and life span can vary according to the conditions under which the computer and battery are used.
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Dell Latitude CP and CPi Service Manual
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Input voltage . . . . . . . . . . . . . . . . . Input current (maximum) . . . . . . . . Input frequency . . . . . . . . . . . . . . . Output current . . . . . . . . . . . . . . . . Rated output voltage . . . . . . . . . . . Height . . . . . . . . . . . . . . . . . . . . . . Width . . . . . . . . . . . . . . . . . . . . . . . Depth . . . . . . . . . . . . . . . . . . . . . . . Weight (with cables) . . . . . . . . . . . Temperature range: Operating . . . . . . . . . . . . . . . . . Storage . . . . . . . . . . . . . . . . . .
90 to 135 VAC and 164 to 264 VAC 3.5 A 47 to 63 Hz 4.5 A (maximum at 4-sec pulse); 3.51 A (continuous) 20.0 VDC 27 mm (1.09 inches) .9 58.4 mm (2.29 inches) 133.3 mm (5.25 inches) 0.4 kg (0.9 lb)
0° to 40°C (32° to 104°F) 20° to 60°C (4° to 140°F)
3K\VLFDO 'HOO /DWLWXGH &3L '67 &3 067 DQG &3 067
Height . . . . . . . . . . . . . . . . . . . . . . Width . . . . . . . . . . . . . . . . . . . . . . Depth . . . . . . . . . . . . . . . . . . . . . . Weight 4 . . . . . . . . . . . . . . . . . . . . .
38.6 mm (1.52 inches) 306.0 mm (12.05 inches) 241.0 mm (9.49 inches) 2.5 kg (5.6 lb)
3K\VLFDO 'HOO /DWLWXGH &3L ';7 &3L ';7 DQG &3 0;7
Height . . . . . . . . . . . . . . . . . . . . . . Width . . . . . . . . . . . . . . . . . . . . . . Depth . . . . . . . . . . . . . . . . . . . . . . Weight 5. . . . . . . . . . . . . . . . . . . . .
4
44.1 mm (1.74 inches) 306.8 mm (12.08 inches) 241.0 mm (9.49 inches) 2.8 kg (6.2 lb)
Weight shown is with a hard-disk drive, a battery in the battery bay, a diskette drive in the modular bay, and one memory module. Your computer might weigh more or less, depending on its configuration. Weight shown is with a hard-disk drive, a battery in the battery bay, a diskette drive in the modular bay, and one memory module. Your computer might weigh more or less, depending on its configuration.
5
System Overview
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Height . . . . . . . . . . . . . . . . . . . . . . Width . . . . . . . . . . . . . . . . . . . . . . Depth . . . . . . . . . . . . . . . . . . . . . . Weight6 . . . . . . . . . . . . . . . . . . . . .
38.6 mm (1.52 inches) 306.0 mm (12.05 inches) 241.0 mm (9.49 inches) 2.6 kg (5.8 lb)
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Temperature: Operating . . . . . . . . . . . . . . . . . Storage . . . . . . . . . . . . . . . . . . Relative humidity (maximum): Operating . . . . . . . . . . . . . . . . . Storage . . . . . . . . . . . . . . . . . . Maximum vibration: Operating . . . . . . . . . . . . . . . . . Storage . . . . . . . . . . . . . . . . . . Maximum shock:7 Operating . . . . . . . . . . . . . . . . . Storage . . . . . . . . . . . . . . . . . . Altitude (maximum): Operating . . . . . . . . . . . . . . . . . Storage . . . . . . . . . . . . . . . . . .
6
0° to 40°C (32° to 104°F) 20° to 60°C (4° to 140°F)
10% to 90% (noncondensing) 5% to 95% (noncondensing)
0.51 GRMS, using a random-vibration spectrum that simulates truck shipment 1.3 GRMS, using a random-vibration spectrum that simulates air/truck shipment
152.4 cm/sec (60 inches/sec) (less than or equal to a pulse width of 2 ms) 203.2 cm/sec (80 inches/sec) (less than or equal to a pulse width of 2 ms)
18 to 3048 m (-59 to 10,000 ft) 18 to 10,600 m (-59 to 35,000 ft)
Weight shown is with a hard-disk drive, a battery in the battery bay, a diskette drive in the modular bay, and one memory module. Your computer might weigh more or less, depending on its configuration. Measured with the hard-disk drive in head-parked position.
7
1-14
Dell Latitude CP and CPi Service Manual
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This chapter describes initial procedures that can help you diagnose a computer problem. These procedures can often reveal the source of a problem or indicate the correct starting point for troubleshooting the computer. Dell recommends that you perform these procedures in the order presented here.
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When you first contact a user who has a computer 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:
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See "Maintaining Your Computer" in the online Dell Latitude CP and CPi User's Guide.
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Can the user duplicate the problem?
Yes. Proceed to step 3. No. Proceed to the next section, "Visual Inspection."
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Is the problem a result of user error?
Yes. 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."
Initial Procedures
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The visual inspection consists of a quick inspection of the exterior of the computer and any attached peripherals, including making any necessary corrections. For information about the proper removal and installation of computer components, as instructed in the following procedures, see Chapter 4, "Removing and Replacing Parts."
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To perform a visual inspection, follow these steps:
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Look at the indicators to determine which of the following conditions apply. Then turn off the computer, and take the actions listed for that condition:
Power indicator is blinking.
An error occurred during system POST.
Power indicator is off.
The system is either off or in suspend (or standby, for the Microsoft Windows 98 operating system) or suspend-to-disk mode.
Power indicator is on.
The system is in the power-on state.
Battery indicator is amber (steadily on or blinking slowly).
A low-battery warning occurred. Shut down the operating system; then replace the battery or connect the computer to AC power to charge the battery.
Battery indicator is alternating between green and amber.
A temporary battery failure has occurred. Press the power button for 4 seconds to turn off the computer, and let the battery and computer cool to room temperature.
Battery indicator is amber and blinking rapidly when the power switch
is pressed or the AC adapter is connected to the computer. A fatal battery condition exists. Press the power button for 4 seconds to turn off the computer, and then remove the battery or batteries from the system.
All indicators remain off.
The computer is already turned off or in suspend-to-disk mode.
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Dell Latitude CP and CPi Service Manual
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See the User's Guide that came with the C/Port APR or C/Dock Expansion Station for detailed instructions on undocking the computer.
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The AC adapter's AC power cable is connected to both the adapter and
a power source.
The AC adapter's DC power cable is properly connected to the computer's DC power input connector.
The AC adapter and cables are free of obvious physical damage. The AC power adapter's green power indicator is on.
NOTE: If the computer's battery indicator flashes alternately green and amber while the computer is connected to AC power, disconnect the computer from AC power and move it to a cooler location. When the computer has cooled to room temperature, reconnect it to AC power and continue charging the battery. If the computer is not allowed to cool, the battery stops charging before it reaches full capacity.
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Initial Procedures
2-3
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The monitor's interface cable is properly attached to the video connector on the I/O panel.
The captive screws that secure the connectors at each end of the interface cable are secure enough to ensure a firm connection.
The monitor's power cable is attached to a power source and free of
obvious physical damage.
The monitor's controls are set according to the instructions in the documentation for the monitor.
The monitor and its interface cable are free of obvious physical
damage.
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The mouse is properly connected to the PS/2 connector on the computer's I/O panel.
The mouse and its cable are free of obvious physical damage. The mouse's ball and push buttons operate freely.
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The device's interface cable connector is correctly attached to the
appropriate port connector on the computer's I/O panel.
The captive screws that secure the connectors at each end of the interface cable are secure enough to ensure a firm connection.
The attached device and its interface cable are free of obvious physical
damage.
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Does the problem reoccur?
Yes. Proceed to the next procedure, "Observing the Boot Routine." No. No further steps are necessary.
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After you perform a visual inspection as described in the previous section, boot the computer from a copy of the 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 Dell Diagnostics Diskette, Dell recommends that users make copies of the diskette and always use a backup copy when servicing a user's computer. For instructions, see "Before You Start Testing" in Chapter 4 of the Dell Latitude CP Reference and Troubleshooting Guide.
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Dell Latitude CP and CPi Service Manual
To observe the boot routine, follow these steps:
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Do these indicators light up within approximately 10 seconds after the boot routine starts?
Yes. Proceed to step 4. No. Troubleshoot the power subsystem.
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Drive access indicator -- This indicator lights up in response to data
being transferred to or from the drives. If the indicator fails to light during the boot routine, troubleshoot the diskette-drive or hard-disk drive subsystem, as appropriate.
Error codes -- If the numbers lock (Num Lock), the capitals lock (Caps
Lock), and the Scroll Lock indicators flash simultaneously during the boot routine, refer to Table 3-1.
Battery failure codes -- If the battery indicator flashes alternately green
and amber, or flashes amber four times per second, refer to Table 3-2.
System error messages -- These messages can indicate problems or
provide status information. If a system error message displays, refer to Table 3-3.
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Does the Diagnostics Menu display?
Yes. See "Running the Dell Diagnostics" in Chapter 3. No. Proceed to step 6.
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Does the Diagnostics Menu display?
Yes. See "Running the Dell Diagnostics" in Chapter 3. No. Proceed to the next section, "Eliminating Resource Conflicts."
Initial Procedures
2-5
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Devices within the computer may require dedicated memory spaces, interrupt levels, or DMA channels, all of which must be allocated during installation of the devices. Because devices may be installed at different times, it is possible that the same resource is assigned to two or more devices. Resource conflicts can result in disorderly or erratic computer operation or failure of the computer to operate at all. If you suspect that resource conflicts might exist, check the computer and reassign the resources as necessary. For more information about resolving conflicts, see Chapter 3, "Troubleshooting Your Computer," in the Reference and Troubleshooting Guide.
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If none of the procedures in this chapter reveals the source of the problem or leads to the proper troubleshooting steps for determining the source of the problem, call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help," in the Reference and Troubleshooting Guide.
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Dell Latitude CP and CPi Service Manual
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6\VWHP(UURU0HVVDJHV
This chapter describes system error messages that can occur during computer startup or, in the case of some failures, during normal computer operation. The tables in this chapter list POST error codes, battery failure codes, and system error messages, as well as their probable causes. If a faulty computer does not display a POST error code or system error message to indicate a failure, use the Dell Diagnostics to help isolate the source of the problem. See "Running the Dell Diagnostics" found later in this chapter.
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If the computer's display cannot display error messages during the POST, the numbers lock (Num Lock), the capitals lock (Caps Lock), and the Scroll Lock indicators display codes that identify the problem or help you identify a faulty component or assembly. The following table lists the error codes that may be generated during POST. Most error codes indicate a fatal error that requires replacement of the system board or other corrective actions before the computer can operate.
NOTE: To display an error code, all three system indicators flash simultaneously (not sequentially). These "flash" codes are the same as the audible "beep" codes used by the Dell Latitude XPi portable computer, for instance.
System Error Messages
3-1
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1-1-3 1-1-4 1-2-1 1-2-2 1-2-3 1-3-1 through 1-1-1 3-1-1 3-1-2 3-1-3 3-1-4 3-2-4 3-3-4 3-4-1 3-4-2 4-2-1 4-2-2 4-2-3 4-2-4
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NVRAM write/read failure ROM BIOS checksum failure Programmable interval timer failure DMA initialization failure DMA page register write/read failure Installed memory module(s) not being properly identified or used Slave DMA register failure Master DMA register failure Master interrupt mask register failure Slave interrupt mask register failure Keyboard controller test failure Display memory test failure Display initialization failure Display retrace test failure No timer tick Shutdown failure Gate A20 failure Unexpected interrupt in protected mode
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BIOS corrupted; system board faulty BIOS corrupted; system board faulty System board faulty System board faulty System board faulty Memory module improperly seated or system memory controller faulty (system board faulty) System board faulty
System board faulty
Keyboard assembly faulty or system board faulty System board faulty
System board faulty
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Dell Latitude CP and CPi Service Manual
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Memory failure above address 0FFFFh Timer chip counter 2 failure Time-of-day clock stopped Serial port failure No usable memory
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Memory module improperly seated or system memory controller faulty (system board faulty) System board faulty Reserve battery faulty or system board faulty System board faulty Memory module improperly seated or system memory controller faulty (system board faulty)
4-3-3 4-3-4 4-4-1 5-1-2
System Error Messages
3-3
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In the event of a battery failure, the battery indicator displays indicator codes that identify the severity of the problem. The following table lists these failure codes.
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Indicator flashes alternately green and amber. Indicator flashes amber four times per second.
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Temporary
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Over temperature; abnormal discharge; abnormal charge; abnormal charge current Cell imbalance; critical discharge
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Turn off the computer and let the battery and computer cool to room temperature. Replace the battery.
Fatal
battery indicator
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Dell Latitude CP and CPi Service Manual
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The following table lists (in alphabetical order) system error messages that may appear on the display during the boot routine or during normal computer operation.
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Auxiliary device failure Bad command or File Name Cache disabled due to failure Data error
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Integrated touch pad or external PS/2 mouse failed. Command entered does not exist or is not in pathname specified. Microprocessor's internal cache memory failed. Diskette or hard-disk drive cannot read the data.
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Integrated touch pad or external PS/2 mouse faulty. Bad command or filename entered. System board faulty. Faulty diskette/tape drive subsystem or hard-disk drive subsystem. One or more DIMMs faulty or improperly seated. Hard-disk drive improperly seated in modular bay. Hard-disk drive damaged. System files missing or corrupted.
Decreasing available memory
Informational message indicating memory is failing (usually preceded by memory error message). Hard-disk drive failed to initialize.
Disk C: failed initialization
Diskette drive 0 seek failure Diskette read failure
System cannot read diskette in diskette drive. System cannot read diskette in diskette drive.
Diskette faulty or incorrectly inserted in drive. System Setup contains incorrect settings. Diskette drive interface loose or faulty. Diskette drive faulty.
Diskette subsystem reset failed
Diskette subsystem failed to respond to reset command from computer.
System board faulty.
System Error Messages
3-5
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Diskette writeprotected Drive not ready
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Diskette is writeprotected; operation cannot be completed. The diskette may be missing from or improperly installed in the diskette drive. Computer cannot identify PC Card.
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Diskette writeprotected. Defective or unformatted diskette.
Error reading PCMCIA card
PC Card faulty, improperly seated, or improperly configured. System board faulty. PC Card software faulty or incorrectly installed.
Extended memory size has changed
Amount of memory recorded in NVRAM does not match memory installed in computer. Computer cannot enable protective mode.
One or more memory modules faulty or improperly seated. One or more memory modules faulty or improperly seated. System board faulty.
Gate A20 failure
General failure
Message indicates system failure. Computer cannot identify hard-disk drive type. Hard-disk drive or controller not responding to commands from computer. The CD-ROM drive does not respond to commands from the computer. Hard-disk drive not responding to commands from computer.
Operating system unable to carry out the command. Installed hard-disk drive not compatible with computer. System board faulty.
Hard-disk drive configuration error Hard-disk drive controller failure 0 Hard-disk drive controller failure 1 Hard-disk drive failure Hard-disk drive read failure
System board faulty.
Computer needs rebooting. Hard-disk drive faulty.
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Dell Latitude CP and CPi Service Manual
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Invalid configuration information -- please run System Setup program Keyboard controller failure Keyboard clock line failure Keyboard data line failure Keyboard stuck key failure
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System Setup contains invalid settings.
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System Setup program contains incorrect settings. NVRAM reserve battery weak or depleted.
Keyboard controller not responding. Keyboard not responding.
Cable or connector loose, or keyboard faulty. Cable or connector loose, or keyboard faulty.
Keyboard key(s) jammed.
For external keyboard or keypad, cable or connector loose or keyboard faulty. For built-in keyboard, keyboard faulty. For either keyboard, key may have been pressed while computer was booting.
Memory address line failure at address, read value expecting value Memory allocation error
Memory control logic not operating properly.
Installed memory module faulty or improperly seated.
The software in use conflicts with the operating system, an application program, or a utility.
Faulty application program.
System Error Messages
3-7
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Memory data line failure at address, read value expecting value Memory double word logic failure at address, read value expecting value Memory odd/even logic failure at address, read value expecting value Memory write/read failure at address, read value expecting value No boot device available
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Memory not operating properly.
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Installed memory module faulty or improperly seated.
Computer not recognizing diskette drive or hard-disk drive from which it is trying to boot. No boot sector on harddisk drive. Timer on system board malfunctioning. Unable to boot from harddisk drive or diskette drive.
No boot device available.
No boot sector on hard-disk drive No timer tick interrupt Non-system disk or disk error Not a boot diskette Optional ROM bad checksum Sector not found
Operating system boot files missing or corrupted. System board faulty. No operating system files on hard-disk drive or diskette. Optional ROM in external device faulty. Bad sector or corrupted FAT on diskette or hard-disk drive.
ROM in external device failed. MS-DOS® unable to locate a sector on diskette or hard-disk drive.
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Dell Latitude CP and CPi Service Manual
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Seek error
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MS-DOS unable to find specific track on diskette or hard-disk drive. Microprocessor unable to reset. System clock stopped.
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Defective diskette or hard-disk drive. System board faulty. Reserve battery lost its charge.
Shutdown failure Time-of-day clock lost power Time-of-day clock stopped Time-of-day not set--please run the System Setup program. Timer chip counter 2 failed Unexpected interrupt in protected mode Warning! Battery is critically low.
Time or date stored in RTC does not match system clock. Timer circuit on system board malfunctioning. Keyboard/mouse controller malfunctioning, or memory module(s) not responding. Battery is running out of power.
Reserve battery lost its charge. System board faulty. System board faulty. One or more memory module(s) faulty or improperly seated. Battery needs recharging.
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The diagnostics contains tests that aid in troubleshooting the computer. If needed, see Chapter 4, "Running the Dell Diagnostics," in the Reference and Troubleshooting Guide. The diagnostics diskette contains the following test groups:
RAM -- Tests the main memory System Set -- Tests the system board's primary functions Video -- Tests the video subsystem Keyboard -- Tests the keyboard subsystem Mouse -- Tests the mouse/touch-pad subsystem Diskette Drives -- Tests the diskette drive subsystem Hard-Disk Drives (Non-SCSI) -- Tests the IDE hard-disk drive subsystem IDE CD ROM Drives -- Tests the CD-ROM drive subsystem Serial/Infrared Ports -- Tests the serial communication port Parallel Ports -- Tests the parallel communication port
System Error Messages
3-9
SCSI Devices -- Tests the SCSI controller in the C/Port APR or the C/Dock
Expansion Station
Network Interface -- Tests the network controller in the C/Port APR or the
C/Dock Expansion Station
Audio -- Tests the built-in sound subsystem Other -- Tests the cooling fan, which works with the air intake on the computer as part of the automatic thermal management system.
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Follow these steps to start the diagnostics.
NOTE: You must have a diskette-drive cable to perform the following procedure. If you do not have a diskette-drive cable, you can get one from Dell. See Chapter 5, "Getting Help," in the Reference and Troubleshooting Guide for information on contacting Dell.
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Starting the diagnostics causes the Dell logo screen to appear, followed by a message indicating that the diagnostics is loading. Before the diagnostics loads, a program tests the portion of main memory (RAM) required for loading the diagnostics. If a main memory error is detected, a message appears on the screen telling you which memory address failed. If no errors are found in main memory, the diagnostics loads and the Diagnostics Menu appears. This menu lets you choose the following options or exit to the MS-DOS prompt:
Run Quick Tests -- Runs selected tests from all test groups to quickly
locate the failure or to indicate where further testing may be needed to isolate a failure
Run All Tests -- Runs all tests for a thorough test of the computer Run Specific Tests -- Tests a particular area or subsystem
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Dell Latitude CP and CPi Service Manual
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This chapter provides instructions for removing and replacing fieldreplaceable components, assemblies, and subassemblies. Unless otherwise noted, each procedure in this chapter assumes the following:
The computer and any attached peripherals are turned off, and the peripherals are disconnected from the I/O panel on the back of the computer.
A part can be replaced by performing the removal procedure in reverse
order. When the display assembly is open nearly 180 degrees, use a book or something similar to support it. The angle of the display assembly with respect to the bottom case should never be allowed to exceed 180 degrees. Also, when performing the procedures in this chapter, the locations or directions relative to the computer are as shown in Figure 4-1 unless otherwise specified.
back of computer
left side
right side
front of computer
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Removing and Replacing Parts
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Most of the procedures in this guide require the use of one or more of the following tools:
Number 1 magnetized Phillips-head screwdriver Small flat-blade screwdriver Small plastic scribe
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Before you start to work on the computer, perform the following steps:
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NOTE: Make sure the computer is turned off and not in suspend-to-disk mode. If you cannot shut down the computer using the computer's operating system, press the power button for 4 seconds.
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Dell Latitude CP and CPi Service Manual
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Slide the battery bay latch away from the center of the computer. Then slide the battery out of the battery bay (see Figure 4-2).
battery bay latch battery
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The illustrations in the following removal procedures provide the correct screw length as part of the screw's label. A graphic for that length screw is also included in the illustration. Match the actual screw to the graphic in the illustration to check for correct length.
Removing and Replacing Parts
4-3
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movable part of connector (do not remove)
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Some of the computer's interface connectors are zero insertion force (ZIF) connectors. These connectors are not removable, but they must be released to disconnect a cable from them
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To disconnect an interface cable from a ZIF connector, follow these steps:
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To reconnect an interface cable to a ZIF connector, follow these steps:
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To ensure a firm connection, make sure the ZIF connector is completely closed.
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Dell Latitude CP and CPi Service Manual
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Table 4-1 lists the parts and assemblies available for the computer. Some parts may only be available as part of a service kit or assembly, and are provided for reference only. The subsections that follow Table 4-1 provide instructions for removing and replacing these parts and assemblies.
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Customer kit, AC adapter AC adapter Power cable, Australia Power cable, U.S.
CUS,ADPT,AC,EXT,20V,70W, NBK,CP ADPT,AC,EXT,20V,70W, NBK,CP CORD,PWR,110V,6F , AC ADPT,AUS CORD,PWR,110V,6F , AC ADPT,US
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Service kit, audio board
SVC,PWA,AUDIO,CP
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4-25
Audio shield
SHLD,W/SPR,AUDIO CRD
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4-25
Service kit, back cover assembly Back cover assembly Docking bar Docking door
SVC,SUBASSY, BK CVR/DOOR,I/O,CP ASSY,BK PLT/DOOR,I/O,CP BAR,DOOR,DCKG,MET DOOR,DCKG,PLSTC,I/O
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4-5, 4-11
Customer kit, main battery Main battery
CUS,BTRY,MN,14.4V,8CELL, LITH BTRY,MN,14.4V,8CELL,LITH
4-2
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Service kit, reserve battery Reserve battery Reserve battery sponge pad
SVC,BTRY,RSRV,7 .2V,30MAH,6, NIHD BTRY,RSRV,7 .2V,30MAH,6, NIHD PAD,FOAM,BRTY,RSRV,CP
4-32
Removing and Replacing Parts
4-5
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Bottom case assembly
ASSY,CVR,BTM,PLSTC, BASE,CP
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4-5, 4-24
Bottom case bracket assembly
ASSY,BRKT,CASE,BTM
4-27
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Service kit, CD-ROM drive CD-ROM drive bezel 20X CD-ROM drive CD-ROM drive interface board Bottom CD-ROM drive cover Top CD-ROM drive cover CD-ROM drive shield CD-ROM drive label
SVC,SUBASSY,CD,20X, NBK,SANYO BZL,CD CD,680M,10X,INT,NBK PWA,CD/FDD INTERCONN,SE CVR,BTM,PLSTC,CD,CP CVR,TOP ,PLSTC,CD,CP SHLD,CD,CP LBL,REG,CD,20X
4-25
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Diskette drive service kit Diskette drive subassembly Diskette drive Diskette drive assembly bottom cover Diskette drive assembly top cover Diskette drive assembly interface board Diskette drive assembly interface cable Diskette drive assembly shield
SVC,SUBASSY,FD,F3, INT/EXT,CP SUBASSY,FD,F3,INT/EXT,CP FD,F3,CP CVR,BTM,PLSTC,FD,F3,CP CVR,TOP ,PLSTC,FD,F3,CP PWA,INTFC,FD,F3,CP CBL,FPC,FD,F3,CP SHLD,FD,F3,CP
4-25
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Service kit, exhaust fan
SVC,FAN,25X25X10,CP
4-31
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Dell Latitude CP and CPi Service Manual
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