Acer Extensa 5230 Service Guide

Chapter 355
This chapter contains step-by-step procedures on how to disassemble the notebook computer for 
maintenance and troubleshooting.
Disassembly Requirements
To disassemble the computer, you need the following tools:
•Wrist grounding strap and conductive mat for preventing electrostatic discharge
•Flat screwdriver
•Philips screwdriver
•Hex screwdriver
•Plastic flat screwdriver
•Plastic tweezers
NOTE: The screws for the different components vary in size. During the disassembly process, group the...

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General Information
Pre-disassembly Instructions
Before proceeding with the disassembly procedure, make sure that you do the following:
1.Turn off the power to the system and all peripherals.
2.Unplug the AC adapter and all power and signal cables from the system. 
3.Place the system on a flat, stable surface. 
4.Remove the battery pack.
Disassembly Process
The disassembly process is divided into the following stages:
•External module disassembly
•Main unit disassembly
•LCD module...

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External Module Disassembly Process
External Modules Disassembly Flowchart
The flowchart below gives you a graphic representation on the entire disassembly sequence and instructs you 
on the components that need to be removed during servicing. For example, if you want to remove the main 
board, you must first remove the keyboard, then disassemble the inside assembly frame in that order.
 
Screw List
ItemScrewColorPart No.
A M2 x L3 Silver 86.9A552.3R0
B M2 x L4 Silver 86.9A552.4R0
C M2.5 x L5...

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Removing the Battery Pack
1.Turn base unit over. 
2.Slide the battery lock/unlock latch to the unlock position. 
3.Slide and hold the battery release latch to the release position.
4.Then remove the battery from the main unit.  

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Removing the SD dummy card
1.Push the SD dummy card all the way in to eject it.
2.Pull it out from the slot.  

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Removing the PC and ExpressCard dummy cards
1.Press the eject button to pop out the button.
2.Press it again to pop out the PC dummy card. 
3.Remove the PC dummy card from the slot. 

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4.Push the ExpressCard dummy card all the way in to eject it. 
5.Pull it out from the slot.
Removing the Lower Cover
1.See “Removing the Battery Pack” on page 54.
2.Remove the six captive screws securing the lower cover.    

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3.Use a plastic screw driver to carefully pry open the lower cover. 
4.Remove the lower cover from the lower case. 
Removing the DIMM 
1.See “Removing the Battery Pack” on page 54.
2.See “Removing the Lower Cover” on page 57..
3.Push out the latches on both sides of the DIMM socket to release the DIMM.  

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4.Remove the DIMM module. 
Removing the WLAN Board Modules
1.See “Removing the Battery Pack” on page 54.
2.See “Removing the Lower Cover” on page 57.
3.Disconnect the antenna cables from the WLAN board. 
NOTE: There are 2 antenna cables connected to the WLAN board. The Black antenna cable is connected to 
MAIN connector and the White antenna cable is connected to AUX connector. 

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4.Remove the Gray antenna that is taped to the WLAN board and move the antenna cables away from the 
WLAN board.
5.Remove the two screws (B) on the WLAN board to release the WLAN board.   
6.Detach the WLAN board from the WLAN socket. 
NOTE:  When attaching the antenna back to the WLAN board, make sure the cable are arranged properly. 
StepSize (Quantity)ColorTo r q u e
1~2 M2 x L4 (2) Silver 1.6 kgf-cm