Dell Inspiron 14 Intel Manuel d'entretien - Page 44

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  System Board
Dell™ Inspiron™ N4020/N4030 Service Manual 
  Removing the System Board
  Replacing the System Board
  Entering the Service Tag in the BIOS
WARNING:
Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
 
CAUTION:
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.
 
CAUTION:
To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal
surface (such as a connector on your computer).
 
CAUTION:
To help prevent damage to the system board, remove the main battery (see
computer.
 Removing the System Board
 
1. Follow the instructions in
Before You
 
2. Press and eject any installed card or blank from the 5-in-1 media card reader.
 
3. Remove the battery (see
Removing the
 
4. Follow the instructions from
 
5. Follow the instructions from
 
6. Remove the module cover (see
 
7. Remove the memory module(s) (see
 
8. Remove the keyboard (see
 
9. Remove the palm rest (see
 
10. Remove the Bluetooth card (see
 
11. Disconnect the display cable and the speakers cable from the connectors on the system board.
 
12. Remove the three screws that secure the system board assembly to the computer base.
1 display cable connector 2 speakers cable
3 screws (3)
4 system board
 
Begin.
Battery).
step 3
to
step 4
in
Removing the Hard
step 3
to
step 5
in
Removing the Optical
Removing the Module
Cover).
Removing the Memory
Module(s)).
Removing the
Keyboard).
Removing the Palm
Rest).
Removing the Bluetooth
Card).
Removing the
Drive.
Drive.
Battery) before working inside the