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Acer Aspire 5230 Service Guide

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    							Chapter 239
    4.In flash BIOS, the message Please do not remove AC Power Source displays.
    NOTE: If the AC power is not connected, the following message displays.
    Plug in the AC power to continue.
    5.Flash is complete when the message Flash programming complete displays.  
    						
    							40Chapter 2
    WinFlash Utility
    Perform the following steps to use the WinFlash Utility:
    1.Double click the WinFlash executable.
    The Destination Directory screen displays.
    2.Click Start. A warning screen displays.
    3.Click OK to begin the update. A progress screen displays.
    4.When the process is complete, close all programs and applications and reboot the system. 
    						
    							Chapter 241
    Remove HDD/BIOS Password Utilities
    This section provide you with removing HDD/BIOS method:
    Remove HDD Password:
    When the user keys in the wrong password three times, the system reports the following error code to user.
    To unlock the HDD password, perform the following steps:
    1.Press Enter to display the Select Item screen.
    2.Select Enter Unlock Password and press Enter.
    An Unlock Password displays.
    3.Make a note of the key, 76943488 in the example.
    4.Boot up the system and open a DOS prompt.
    5.Enter the UnlockHD.EXE command and input the key to create an unlock code. Make a note of the 
    result, for example 46548274.
    6.Reboot and enter the BIOS by pressing F2 when prompted.
    7.Go to the Security menu and select Set Hdd Password (see “Security” on page 30).
    8.Enter the unlock code generated by UnlockHD.EXE as the current password, 46548274 in the example, 
    and complete the New Password and Confirm fields to create a new HDD password.
    9.Save and exit the BIOS to complete the process. 
    						
    							42Chapter 2
    Removing BIOS Passwords:
    If you key in the wrong Supervisor Password three times, System Disabled displays on the screen. See the 
    image below.
    To reset the BIOS password, run BIOS_PW.EXE as follows:
    1.
    Key in bios_pw 14452 0
    2.Select one string from the list. 
    						
    							Chapter 243
    3.Reboot the system and key in the selected string (qjjg9vy, 07yqmjd etc.) for the BIOS user 
    password.
    Cleaning BIOS Passwords
    To clear the password, perform the following steps:
    1.From a DOS prompt, Execute clnpwd.exe
    2.Press 1 or 2 to clean the desired password shown on the screen.
    The onscreen message determines whether the function is successful or not. 
    						
    							44Chapter 2
    Miscellaneous Utilities
    Using DMITools
    The DMI (Desktop Management Interface) Tool copies BIOS information to eeprom to be used in the DMI pool 
    for hardware management. 
    When the BIOS displays Verifying DMI pool data it is checking the table correlates with the hardware before 
    sending to the operating system (Windows, etc.).
    To update the DMI Pool, perform the following steps:
    1.Boot into DOS.
    2.Execute dmitools. The following messages report to screen to confirm completion:
    •    dmitools /r ==> Read dmi string from bios
    •    dmitools /wm xxxx ==> Write manufacturer name to eeprom
    •    dmitools /wp xxxx ==> Write product name to eeprom
    •    dmitools /ws xxxx ==> Write serial number to eeprom
    •    dmitools /wu xxxx ==> Write uuid to eeprom
    •    dmitools /wa xxxx ==> Write asset tag to eeprom
    Using the ICW50/ICY70 LAN MAC Utility
    1.Boot into DOS.
    2.Execute mac.bat  
    						
    							Chapter 345
    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 
    						
    							46Chapter 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 
     
    ScrewQuantityPart Number
    M2.5*8 (NL) 15
    M2.5*5 (NL) 22
    M2.5*3 (NL) 2
    M2*3 (NL) 36
    M2.5*4 (NL) 2
    M2*6 (NL)  4
    M2*4-NI (NL) 5
    M3*3 (NL) 4
    M2*6.5 4
    M2.5*5.0 2
    M2.5*6.5 4 
    						
    							Chapter 347
    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
    StepScrewQuantityColorPart No.
    Memory Cover M2.5*8 (NL)  4 Black
    HDD Cover M2*6 (NL)  2 Black
    WLAN Cover M2.5*8 (NL)  4 Black
    WLAN Module M2*3 (NL) 2 Black
    WLAN Bracket M2*3 (NL) 1 Black
    TV Tuner Module M2*3 2 Black
    HDD Carrier M3*3 (NL) 4 Silver
    ODD Module M2.5*5(NL) 1 Black
    ODD Bracket M2*3 (NL) 3 Black 
    						
    							48Chapter 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 slide out the battery pack from the main 
    unit (2). 
    1
    2 
    						
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