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Dell Precision M90 Service Manual

Mobile workstation
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Download this manual See also: User Manual, Quick Reference Manual
Dell Precision™ M90 Mobile Workstation Service Manual
 
Before You Begin
System Components
Optical Drive
Hard Drive
Memory Module(s)
Modem
Mini-Card
Internal Card With Bluetooth® Wireless Technology
Hinge Cover
Keyboard
Display
Palm Rest
Coin-Cell Battery
 
 
 Notes, Notices, and Cautions
NOTE:
A NOTE indicates important information that helps you make better use of your computer.
NOTICE:
A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
CAUTION:
A CAUTION indicates a potential for property damage, personal injury, or death.
 Abbreviations and Acronyms
For a complete list of abbreviations and acronyms, see "Glossary" in the User's Guide.
If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable.
Information in this document is subject to change without notice.
© 2006 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, and Dell Precision are trademarks of Dell Inc.; Microsoft and Windows are registered trademarks of Microsoft 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 Inc. disclaims any
proprietary interest in trademarks and trade names other than its own.
Model PP05XA
March 2006 Rev. A00
Speakers
Subwoofer
USB Port Board
Processor Thermal-Cooling Assembly
Processor Module
Video Card/Thermal-Cooling Assembly
System Fan(s)
ExpressCard Cage
Smart Card Reader
System Board
Battery Latch Assembly
Flashing the BIOS
Pin Assignments for I/O Connectors

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  • Page 1 Trademarks used in this text: Dell, the DELL logo, and Dell Precision are trademarks of Dell Inc.; Microsoft and Windows are registered trademarks of Microsoft 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 Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

  • Page 2: Removing The Battery Latch Assembly

    Back to Contents Page   Battery Latch Assembly Dell Precision™ M90 Mobile Workstation Service Manual   Removing the Battery Latch Assembly   Replacing the Battery Latch Assembly  Removing the Battery Latch Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.

  • Page 3: Replacing The Battery Latch Assembly

    screw battery latch assembly       9. Remove the spring from the hook on the computer base by lifting it up and away with a screwdriver or a plastic scribe. hook spring   10. Remove the plastic battery-latch assembly by twisting the assembly slightly and lifting it out of the channel and away from the computer base. battery latch assembly  Replacing the Battery Latch Assembly  ...
  • Page 4   5. Replace the system board and the four M2.5 x 5 screws.   6. Replace in reverse order the other components that you removed in Removing the Battery Latch Assembly. Back to Contents Page  ...

  • Page 5: Before You Begin

    Hold a component such as a processor by its edges, not by its pins. NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.

  • Page 6: Computer Orientation

      3. Disconnect any telephone or network cables from the computer.   4. Disconnect your computer and all attached devices from their electrical outlets.   5. Close the display and turn the computer upside-down on a flat work surface. NOTICE: To help prevent damage to the system board, remove the main battery before working inside the computer.
  • Page 7 (1 each) (2 each) (1 each) Internal Card With Bluetooth®  Display Assembly: Keyboard: Wireless Technology: (4 each) (2 each) (1 each)       Display Bezel: Palm Rest: (4 each, under rubber display bumpers) (6 each – top side) Display Panel: (8 each) (4 each, shoulder type, under (12 each –...
  • Page 8  ...

  • Page 9: Internal Card With Bluetooth® Wireless Technology

    Back to Contents Page   Internal Card With Bluetooth® Wireless Technology Dell Precision™ M90 Mobile Workstation Service Manual   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.

  • Page 10: Expresscard Cage

    Back to Contents Page   ExpressCard Cage Dell Precision™ M90 Mobile Workstation Service Manual   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.
  • Page 11 Back to Contents Page   Mini-Card Dell Precision™ M90 Mobile Workstation Service Manual   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.   CAUTION: Only products approved for use in your portable computer may be installed. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.
  • Page 12 securing clips (2) Mini-Card     NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card.   5. Install the replacement Mini-Card: a.  Align the Mini-Card with the connector at a 45-degree angle, and press the Mini-Card down into the securing clips until the card clicks into place. securing clips (2) antenna connectors (2) Mini-Card connector...

  • Page 13: Removing The Coin-Cell Battery

    Back to Contents Page   Coin-Cell Battery Dell Precision™ M90 Mobile Workstation Service Manual   Removing the Coin-Cell Battery   Replacing the Coin-Cell Battery  Removing the Coin-Cell Battery   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.
  • Page 14 Back to Contents Page  ...

  • Page 15: System Components

      System Components Dell Precision™ M90 Mobile Workstation Service Manual NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. NOTICE: Unless otherwise noted, each procedure in this document assumes that a part can be replaced by performing the removal procedure in reverse order.

  • Page 16: Removing The Processor Module

    Back to Contents Page   Processor Module Dell Precision™ M90 Mobile Workstation Service Manual   Removing the Processor Module   Replacing the Processor Module  Removing the Processor Module   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.

  • Page 17: Replacing The Processor Module

     Replacing the Processor Module NOTICE: Ensure that the cam lock is in the fully open position before seating the processor module. Seating the processor module properly in the ZIF socket does not require force. NOTICE: A processor module that is not properly seated can result in an intermittent connection or permanent damage to the processor and ZIF socket.

  • Page 18: Removing The Processor Thermal-Cooling Assembly

    Back to Contents Page   Processor Thermal-Cooling Assembly Dell Precision™ M90 Mobile Workstation Service Manual   Removing the Processor Thermal-Cooling Assembly   Replacing the Processor Thermal-Cooling Assembly  Removing the Processor Thermal-Cooling Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.
  • Page 19   3. Tighten the four captive screws, labeled "1" through "4," in consecutive order. Back to Contents Page  ...

  • Page 20: Display Assembly

    Back to Contents Page   Display Dell Precision™ M90 Mobile Workstation Service Manual   Display Assembly   Display Bezel   Display Panel   Display Latch  Display Assembly   Removing the Display Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.

  • Page 21: Replacing The Display Assembly

      7. Remove the four M2.5 x 5-mm screws (two on each side) that connect the display to the computer base. 1 display cable pull-tab 2 M2.5 x 5-mm screws (4) 3 Mini-Card antenna cables (2) 4 display cable connector on 5 display cable in cable  ...

  • Page 22: Display Bezel

      2. Align the display assembly over the screw holes in the base of the computer. NOTE: The left hinge assembly has a small tab that you must first insert underneath the edge of the palm rest.   3. Replace the four M2.5 x 5-mm screws.  ...

  • Page 23: Removing The Display Bezel

    1 shoulder screws (4, two at the top and two at 2 screw covers 3 M2.5 x 5-mm the bottom) screws (4, one on each corner) 4 rubber screw-covers/display bumpers (6) 5 display bezel       Removing the Display Bezel  ...

  • Page 24: Display Panel

    display back cover tabs       7. Repeat step 6 for the lower-left corner of the bezel. Then use your fingers to release the snaps around the rest of the bezel and lift it away from the display panel. display bezel display panel  ...

  • Page 25: Replacing The Display Panel

    1 display panel 2 M2 x 3-mm screws (8) 3 display back cover 4 grounding wire and captive screw           CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer.

  • Page 26: Display Latch

    1. Reconnect the top display-cable connector to the top flex-cable connector.   2. Reconnect the bottom flex-cable connector to the inverter connector.   3. Replace the display panel inside the display back cover.   4. Tighten the captive screw that attaches the display-panel ground wire to the display back cover.  ...

  • Page 27: System Fans

    Back to Contents Page   System Fan(s) Dell Precision™ M90 Mobile Workstation Service Manual   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.
  • Page 28 1 fan for video card/thermal -  cooling assembly, if  2 M2.5 x 5-mm screws 3 fan installed cable 4 fan-cable system board connector         Back to Contents Page  ...

  • Page 29: Flashing The Bios

    Back to Contents Page   Flashing the BIOS Dell Precision™ M90 Mobile Workstation Service Manual NOTICE: Plug the AC adapter into a known good power source to prevent a loss of power. Failure to do so may cause system damage.   1. Ensure that the AC adapter is plugged in and that the main battery is installed properly.

  • Page 30: Removing The Hard Drive

    NOTICE: Hard drives are extremely fragile; even a slight bump can damage the drive. NOTE: Dell does not guarantee compatibility or provide support for hard drives from sources other than Dell.   1. Follow the instructions in Before Working Inside Your Computer.

  • Page 31: Returning A Hard Drive To Dell

     Returning a Hard Drive to Dell Return your old hard drive to Dell in its original or comparable foam packaging. Otherwise, the hard drive may be damaged in transit. hard drive foam packaging Back to Contents Page  ...

  • Page 32: Removing The Hinge Cover

    Back to Contents Page   Hinge Cover Dell Precision™ M90 Mobile Workstation Service Manual   Removing the Hinge Cover   Replacing the Hinge Cover  Removing the Hinge Cover   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.
  • Page 33 Back to Contents Page   Keyboard Dell Precision™ M90 Mobile Workstation Service Manual   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.

  • Page 34: Removing The Memory Module(S)

    Computer) before you begin working inside the computer. NOTE: Memory modules purchased from Dell are covered under your computer warranty. NOTE: To get maximum performance/dual-channel memory bandwidth capability, both memory module connectors must contain memory modules and the modules must be of the same size and configuration.

  • Page 35: Replacing The Memory Module(S)

     Replacing the Memory Module(s) NOTE: To get maximum performance/dual-channel memory bandwidth capability, both memory module connectors must contain memory modules and the modules must be of the same size and configuration. NOTE: If a memory module is not installed properly, the computer does not boot.  ...

  • Page 36: Removing The Modem

    Back to Contents Page   Modem Dell Precision™ M90 Mobile Workstation Service Manual   Removing the Modem   Replacing the Modem  Removing the Modem   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.

  • Page 37: Replacing The Modem

     Replacing the Modem   1. Connect the modem cable to the modem. NOTICE: Ensure that the modem cable is routed correctly when you replace the modem.   2. Connect the modem to the system board. Align the connector on the bottom of the modem with the modem connector on the system board, and press down on the right side of the modem.  ...

  • Page 38: Optical Drive

    Back to Contents Page   Optical Drive Dell Precision™ M90 Mobile Workstation Service Manual Your computer ships with a fixed optical drive installed. NOTICE: To help prevent damage to drives, store them in a safe, dry place when they are not installed in the computer. Avoid pressing down on them or placing heavy objects on top of them.

  • Page 39: Removing The Palm Rest

    Back to Contents Page   Palm Rest Dell Precision™ M90 Mobile Workstation Service Manual   Removing the Palm Rest   Replacing the Palm Rest  Removing the Palm Rest   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.

  • Page 40: Replacing The Palm Rest

    M2.5 x 8-mm screws (12)   9. Turn the computer top-side up and disconnect the touch-pad connector from the system board. touch-pad connector LED board connector   10. Disconnect the LED board connector.   11. Lift the palm rest and remove it from the computer.  Replacing the Palm Rest  ...
  • Page 41 Back to Contents Page  ...

  • Page 42: Pin Assignments For I/O Connectors

    Back to Contents Page  Pin Assignments for I/O Connectors Dell Precision™ M90 Mobile Workstation Service Manual   USB Connector   Video Connector   S-Video TV-Out Connector   IEEE 1394 Connector  USB Connector     Signal USB5V+ USBP– USBP+  Video Connector         Signal Signal CRT_R 9 CRT_G 10 CRT_B 11 MONITOR_DETECT–...

  • Page 43: Ieee 1394 Connector

    DLUMA-L DCRMA-L   Composite Video     Signal DCMPS-L  IEEE 1394 Connector     Signal TPB– TPB+ TPA– TPA+ Back to Contents Page  ...

  • Page 44: Smart Card Reader

    Back to Contents Page   Smart Card Reader Dell Precision™ M90 Mobile Workstation Service Manual   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.

  • Page 45: Removing The Speakers

    Back to Contents Page   Speakers Dell Precision™ M90 Mobile Workstation Service Manual   Removing the Speakers   Replacing the Speakers  Removing the Speakers   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.
  • Page 46 Back to Contents Page  ...
  • Page 47 Back to Contents Page   Subwoofer Dell Precision™ M90 Mobile Workstation Service Manual   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.

  • Page 48: Removing The System Board

    Back to Contents Page   System Board Dell Precision™ M90 Mobile Workstation Service Manual   Removing the System Board   Replacing the System Board  Removing the System Board   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.
  • Page 49 1 USB-port-board 2 cable connector for internal card with 3 speaker connector Bluetooth wireless technology connector 4 subwoofer         connector   12. Disconnect the smart-card reader connector from the system board.   13. Disconnect the speaker connector from the system board.  ...

  • Page 50: Replacing The System Board

    system board M2.5 x 5-mm screws (4)   23. Remove the system board, slowly easing the connectors out of their access holes on the back and side of the computer base: a.  With the back of the computer facing you, grasp the upper-right corner of the system board and lift it slightly. b.
  • Page 51 Trademarks used in this text: Dell, the DELL logo, and Dell Precision are trademarks of Dell Inc.; Microsoft and Windows are registered trademarks of Microsoft 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 Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

  • Page 52: Removing The Usb Port Board

    Back to Contents Page   USB Port Board Dell Precision™ M90 Mobile Workstation Service Manual   Removing the USB Port Board   Replacing the USB Port Board  Removing the USB Port Board   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.
  • Page 53 3. Reconnect the cable to the system board.   4. Replace the palm rest (see Replacing the Palm Rest).   5. Replace the display assembly (see Replacing the Display Assembly).   6. Replace the keyboard (see Keyboard).   7. Replace the hinge cover (see Replacing the Hinge Cover).

  • Page 54: Removing The Video Card/Thermal-Cooling Assembly

    Back to Contents Page   Video Card/Thermal-Cooling Assembly Dell Precision™ M90 Mobile Workstation Service Manual   Removing the Video Card/Thermal-Cooling Assembly   Replacing the Video Card/Thermal-Cooling Assembly  Removing the Video Card/Thermal-Cooling Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.
  • Page 55 2. Tighten the four captive screws on the video card/thermal-cooling assembly. Back to Contents Page  ...

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