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Acer Aspire 4935 Service Guide

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    							Chapter 351
    Machine Disassembly and Replacement
    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
    •Plastic flat screwdriver
    •Plastic tweezers
    NOTE: The screws for the different components vary in size. During the disassembly process, group the 
    screws with the corresponding components to avoid mismatch when putting back the components.
    Chapter 3 
    						
    							52Chapter 3
    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 disassembly
    The flowcharts provided in the succeeding disassembly sections illustrate the entire disassembly sequence. 
    Observe the order of the sequence to avoid damage to any of the hardware components. 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.
    Main Screw List 
    DescriptionQuantityAcer P/N
    M2.0D 3.0L K4.6D 0.8T ZK 17 86.AD302.001
    M2.5D 3.0L K5.5D 0.8T ZK 15 86.AD302.002
    M2.5D 5L K 5.5D ZK NL 21 86.AD302.003
    M2.5D 10.0L K 5.5D 0.8T ZK 12 86.AD302.004
    M3.0D 3.0L K 4.9D NI+  4 86.AD302.005
    M2.5D 3.2L K 6D NI+ 4 86.AD302.006 
    						
    							Chapter 353
    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
    StepScrewQuantityPart No.
    WLAN Module M2*3 2 86.AD302.001
    HDD Carrier M3*3 4 86.AD302.005
    ODD Module M2.5*5 1 86.AD302.003
    ODD Bracket M2*3 2 86.AD302.001
    Rem ove
    Lower Covers
    Rem ove
    NewCard
    Dummy
    Disconnect pow er
    and signal cables
    from system
    Rem ove
    Battery
    Turn off system
    and peripherals
    pow er
    Rem ove
    DIMMs
    Rem ove
    SD Dummy
    Rem ove
    HDDRem ove
    ODDRem ove
    WLAN 
    						
    							54Chapter 3
    Removing the Battery Pack
    1.Turn computer over. 
    2.Slide the battery lock/unlock latch to the unlock position. 
    3.Slide and hold the battery release latch to the release position (1), then lift out the battery pack from the main 
    unit (2). 
    1
    2 
    						
    							Chapter 355
    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.  
    						
    							56Chapter 3
    Removing the ExpressCard dummy card
    1.Push the ExpressCard all the way in to eject the ExpressCard dummy. 
    2.Pull it out from the slot. 
    						
    							Chapter 357
    Removing the Lower Covers
    1.See “Removing the Battery Pack” on page 54.
    2.See “Removing the SD dummy card” on page 55.
    3.See “Removing the ExpressCard dummy card” on page 56.
    4.Loosen the five captive screws in the covers as shown.
       
    5.Carefully open the DIMM Cover. 
    6.Remove the WLAN Cover as shown. 
    WLAN 
    Cover
    HDD 
    Cover
    DIMM 
    Cover 
    						
    							58Chapter 3
    7.Carefully open the HDD Cover.  
    						
    							Chapter 359
    Removing the WLAN Module
    1.See “Removing the Lower Covers” on page 57.
    2.Disconnect the two antenna cables.
    3.Remove the two securing screws.
    4.Remove the WLAN module as shown.
    StepSizeQuantityScrew Type
    WLAN Module M2*3 2 
    						
    							60Chapter 3
    Removing the DIMM Modules
    1.See “Removing the Lower Covers” on page 57.
    2.Push out the release latches on both sides of the DIMM socket to release the DIMM module. 
    3.Remove the DIMM module. 
    4.Repeat steps for the second DIMM module. 
    						
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