Dell Vostro A90 Panduan Servis - Halaman 34

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Dell Vostro A90 Panduan Servis
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  System Board
Dell™ Vostro™ A90 Service Manual 
  Removing the System Board
  Replacing the System Board
  Setting the Keyboard Matrix
  Updating Service Tag
 
CAUTION:
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.
 
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.
 Removing the System Board
 
1. Follow the instructions in
Before You
 
2. Remove the module cover (see
 
3. Remove the memory module (see
 
4. Remove the solid-state drive (see
 
5. Remove the keyboard (see
 
6. Remove the palm rest (see
 
7. Disconnect the display cables, Mini-Card antenna cables, and speaker cable from the respective system board connectors (see
 
8. Disconnect the microphone cable and AC adapter cable from the respective system board connectors.
 
9. Remove the two screws that secure the system board to the computer base.
 
10. Lift the system board at an angle towards the side of the computer and out of the computer base.
1
screw (2)
3
microphone cable connector
 Replacing the System Board
NOTE:
The thermal pads may stick to the bottom of the palm rest. Remove the thermal pads from the bottom of the palm rest.
 
Begin.
Removing the Module
Cover).
Removing the Memory
Module).
Removing the Solid-state
Drive).
Removing the
Keyboard).
Removing the Palm
Rest).
2
system board
4
AC adapter cable connector
Display
Assembly).