Dell M20 Guide de dépannage

DellPrecision™M20ServiceManual Notes, Notices, and Cautions  Information in this document is subject to change without notice. ©2005DellInc.A

Back to Contents Page  Microprocessor Module DellPrecision™M20ServiceManual Removing the Microprocessor Module Installing the Microprocess

 1. Align the pin-1 corner of the microprocessor module with the pin-1 corner of the ZIF socket, and insert the microprocessor module. When the mic

Back to Contents Page  Display Assembly and Display Latch DellPrecision™M20ServiceManual Display Assembly Display Bezel Display Panel

 8. Lift the display assembly out of the computer base.  Installing the Display Assembly  1. Align the display assembly over the screw holes in

 7. Startingatthebottomofthedisplaypanel(bytheDell™logo),useyourfingerstoseparatethebezelfromthetopcoverbyliftingtheinsid

Removing the Display Panel  1. Follow the instructions in "Preparing to Work Inside the Computer."  2. Remove the center control cover.

 8. Remove the display panel from the top cover.  9. Use the pull-tab to disconnect the bottom flex-cable connector from the inverter connector.

7. Remove the display latch.  Installing the Display Latch  1. Align the latch on the guide pins located on the top cover.  2. Replace the

Back to Contents Page  Fan DellPrecision™M20ServiceManual Removing the Fan Installing the Fan Removing the Fan  1. Follow the instruc

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Back to Contents Page  Before You Begin DellPrecision™M20ServiceManual Preparing to Work Inside the Computer Recommended Tools Computer

Back to Contents Page  Hard Drive DellPrecision™M20ServiceManual Removing the Hard Drive Installing the Hard Drive Removing the Hard Dr

 6. Install the operating system for your computer.  7. Install the drivers and utilities for your computer. Back to Contents Page 

Back to Contents Page  Center Control Cover DellPrecision™M20ServiceManual Removing the Center Control Cover Installing the Center Control

Back to Contents Page  Keyboard DellPrecision™M20ServiceManual Removing the Keyboard Installing the Keyboard Removing the Keyboard  1

2. Slide the keyboard tabs at the bottom of the keyboard into the base of the computer.  3. Replace the two M2.5 x 5-mm screws across the top of th

Back to Contents Page  Base Latch DellPrecision™M20ServiceManual Removing the Base Latch Installing the Base Latch Removing the Base La

Back to Contents Page  Mini PCI Card DellPrecision™M20ServiceManual Removing the Mini PCI Card Installing the Mini PCI Card Removing th

Installing the Mini PCI Card  1. Align the Mini PCI card with the connector at a 45-degree angle, and press the Mini PCI card into the connector

 3. Replace the keyboard.  4. Replace the center control cover.. Back to Contents Page  1 Mini PCI card 2 antenna wires (2)

Back to Contents Page  Palm Rest DellPrecision™M20ServiceManual Removing the Palm Rest Installing the Palm Rest Removing the Palm Rest

 12. Remove the hard drive. Recommended Tools The procedures in this manual require the following tools: l #1 Phillips screwdriver l ¼-inch f

 8. Starting at the back center of the palm rest, use your fingers to separate the palm rest from the computer base by lifting the inside of the pa

Back to Contents Page  Pin Assignments for I/O Connectors DellPrecision™M20ServiceManual USB Connector Video Connector Parallel Connect

Back to Contents Page   Pin  Signal  Pin  Signal 1 STROBE– 10 ACK– 2 PD0 11 BUSY 3 PD1 12 PE 4 PD2 13 SLCT 5 PD3 14 AFD/3M– 6 PD4 15 ERROR– 7 PD5

Back to Contents Page  Speaker Assembly DellPrecision™M20ServiceManual Removing the Speaker Assembly Installing the Speaker Assembly Re

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Back to Contents Page  System Board DellPrecision™M20ServiceManual Removing the System Board Installing the System Board Removing the S

 12. Turn the computer over and remove the five M2 x 3-mm screws labeled "B" that secure the system board assembly to the computer base.

Back to Contents Page  System Components DellPrecision™M20ServiceManual Back to Contents Page  NOTICE: Only a certified service technician

Back to Contents Page  Microprocessor Thermal-Cooling Assembly DellPrecision™M20ServiceManual Removing the Microprocessor Thermal-Cooling Ass

Back to Contents Page  (4 each) (6 each) (4 each) Display Latch: (1 each) Palm Rest: (2 each at top) (13 each at bottom) Fan: (2 each)  Speak

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Back to Contents Page DellPrecision™M20ServiceManual Notes, Notices, and Cautions ____________________ Information in this document is subject

Back to Contents Page  Memory Module, Modem, and Devices DellPrecision™M20ServiceManual Memory Module Modem Devices Memory Module Y

 Removing the Memory Module From DIMM B  1. Follow the instructions in "Preparing to Work Inside the Computer."  2. Turn the compute

 1. Ground yourself and install the new memory module: a. Align the notch in the module with the slot in the center of the connector. b. Slide

 4. Remove the M2 x 3-mm screw that attaches the modem.  5. Pull up on the pull-tab to disconnect the modem from the connector on the system boar

 2. Pull the device by the latch release to remove the device from the module bay.  Removing the Device If the Security Screw Is Installed  1

 Installing the Device  1. Slide the device into the bay until it clicks in place.  2. Press the latch release back into position and replace

Back to Contents Page  Flashing the BIOS DellPrecision™M20ServiceManual  1. Ensure that the AC adapter is plugged in and that the main batter

Back to Contents Page  Internal Card With Bluetooth® Wireless Technology DellPrecision™M20ServiceManual Removing the Internal Card With Bluet

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Back to Contents Page  Coin-Cell Battery DellPrecision™M20ServiceManual Removing the Coin-Cell Battery Installing the Coin-Cell Battery

Installing the Coin-Cell Battery  1. Connect the coin-cell battery cable connector to the battery connector on the system board.  2. Slide the