Dell Studio 1557 Руководство по эксплуатации - Страница 45

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  System Board Assembly
Dell Studio™ 1557/1558 Service Manual 
  Removing the System Board Assembly
  Replacing the System Board Assembly
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:
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 the back of the computer).
 
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 help prevent damage to the system board, remove the main battery (see
inside the computer.
The BIOS chip in the system board contains the Service Tag, which is also visible on a barcode label on the bottom of the computer.
 Removing the System Board Assembly
 
1. Follow the instructions in
Before You
 
2. Remove the palm rest (see
 
3. Remove the optical drive (see
 
4. Disconnect the fan cable, AC adapter cable, USB cable, ExpressCard cables, and subwoofer cable from their respective system board connectors.
 
5. Remove the six screws that secure the system board to the computer base.
1
fan cable connector
3
AC adapter cable connector
5
ExpressCard cables
7
system board
 
6. Remove the processor heat sink (see
 
7. Remove the processor (see
 
8. Remove the processor bracket from the system board.
 
9. Remove the Mini-Card from the system board (see
 
Begin.
Removing the Palm
Rest).
Removing the Optical
Drive).
2
screws (6)
4
USB cable connector
6
subwoofer cable connector
 
 
Removing the Processor Heat
Removing the Processor
Module).
Removing the Mini-
Before Working Inside Your
Sink).
Card).
Computer) before working