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Apple imac 21 5 inch late 2009 User Manual

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    							iMac (21.5-inch, Late 2009) Symptom Charts — Communications 71 2010-11-18
    3.  After cable has been replaced, 
    verify if AirPort card is now 
    listed in System Profiler. Yes
    Issue resolved by replacing 
    AirPort cable. X03
    No Replace AirPort card carrier 
    board and re-test. If issue 
    persists (card not seen on 
    bus), replace AirPort card. M11
    4.
     Enable AirPort and verify if 
    known local AirPort networks 
    are available, or create a 
    computer-to-computer 
    network with another 
    Macintosh computer using 
    AirPort. See http://docs.
    info.apple.com/article.
    html?path=AirPort/5.0/en/
    ap2110.html. Verify if you 
    connect successfully. Yes
    Issue resolved.
    No Go to step 5.
    5.   Check and reseat the two 
    antennas to the AirPort card. 
    Verify if you can connect to 
    known AirPort network. Yes
    Issue resolved.
    No Replace AirPort card. If issue 
    persists, replace AirPort 
    antenna(s). If damaged 
    antenna is the one embedded 
    in rear housing behind Apple 
    logo, replace rear housing. N04
    6.  Verify that computer and 
    Bluetooth device are both in 
    discoverable mode. Verify if 
    you can now successfully and 
    reliably pair the device. Yes
    Issue resolved.
    No Replace Bluetooth antenna. 
    Go to step 7. M11
    7.   Re-test with new Bluetooth 
    antenna and verify if Bluetooth 
    issues are resolved. Yes
    Issue resolved.
    No Replace Bluetooth card. M11  
    						
    							iMac (21.5-inch, Late 2009) Symptom Charts — Communications 72 2010-11-18
    AirPort Card Kernel Panic
    Quick Check
    SymptomsQuick Check
    AirPort Card Kernel Panic
    •  Kernel Panic on startup
    •  Kernel Panic or freezing while 
    attempting to connect to WiFi 
    networks
    •  Kernel Panic while transferring 
    data on WiFi networks 1.
      Isolate OS by starting up from original Install 
    media for this computer, a same-model computer 
    in Target Disk Mode, or compatible known-good 
    OS on an external drive. AirPort and Bluetooth 
    services are available when booted from the 
    Install disk.
    2.  Ensure that all software and firmware updates for 
    the computer and AirPort been installed.
    Deep Dive
    Check ResultAction Code
    1.   Disconnect AirPort card cable 
    end from logic board. Verify if 
    computer starts now without  
    kernel panic. Yes
    Reseat AirPort card cable and 
    retest. If problem continues 
    replace cable. Go to step 2.
    No Kernel panic not related 
    to AirPort. Restart from 
    Install DVD or known-good 
    bootable external drive and 
    check Panic.Log file on user’s 
    hard drive to find out which 
    is the crashing I/O interface. 
    Also troubleshoot installed 
    Mac OS X software..
    2.  With replacement AirPort 
    card cable installed, verify if 
    computer starts now without 
    kernel panic. Yes
    AirPort cable issue. Issue 
    resolved. N13
    No Replace AirPort card carrier 
    board and re-test.  If issue 
    remains, replace AirPort card. 
    Go to step 3.
    3.   With replacement AirPort 
    carrier or card installed, verify 
    if computer starts now without 
    kernel panic. Yes
    AirPort carrier or card issue. 
    Issue resolved. N13
    No Replace logic board. M11  
    						
    							iMac (21.5-inch, Late 2009) Symptom Charts — Communications 73 2010-11-18
    Ethernet Port/Device Issue
    Unlikely cause:  LCD display, power supply, hard drive, optical drive, fans
    Quick Check
    SymptomsQuick Check
    Ethernet Port/Device Issue
    •  No Ethernet device present
    •  Unable to access network 
    resources
    •  Ethernet device shows no 
    connection
    •  Ethernet device unable to an IP 
    address
    •  Slow network performance 1.
      Verify if Ethernet cable is inserted into port 
    correctly.  Check Ethernet cable for damage. Try 
    a known good Ethernet cable – CAT5 or better 
    recommended for 100Mbps+ connections.
    2.  Check Ethernet ports on the computer and wall/
    switch for dust, debris, damage or bent pins.
    3.   Ensure distance from networking infrastructure is 
    less than 300 feet/ 105 meters.
    4.  Verify port, cable and network hardware with a 
    known good system. Isolate firewall, MAC address 
    filtering or hardware access control devices.
    5.   Isolate OS by starting up from original Install 
    media for this computer, a same-model computer 
    in Target Disk Mode, or compatible known-good 
    OS on an external drive.
    Deep Dive
    Check ResultAction Code
    1.   Visually inspect Ethernet port 
    of computer and ensure that all 
    pins will make physical contact 
    with the Ethernet cable. Yes
    Go to step 2.
    No Pins are damaged, bent flat or 
    missing. Replace logic board. M24
    2.  Boot from original Install media. 
    Verify Network Link status is 
    active by using Network Utility 
    under the “Info” tab. Verify if the 
    Link Status is “Active”. Yes
    Go to step 3.
    No If same Ethernet cable gives 
    an “Active” link status on a 
    known-good, same-model 
    computer, replace logic board. M10
    3.
      Connect computer to another 
    Mac using CAT5 Ethernet 
    cable. See article http://
    docs.info.apple.com/article.
    html?path=Mac/10.5/en/8429.
    html. Verify if you connect 
    successfully. Yes
    Ethernet communication 
    good. Go to step 4.
    No If same Ethernet cable and 
    computer connects to a 
    known-good, same-model 
    computer, replace logic board. M10  
    						
    							iMac (21.5-inch, Late 2009) Symptom Charts — Communications 74 2010-11-18
    4. Check for speed and duplex 
    issues on network. Open 
    System Preference > Network; 
    click the Advanced button, 
    then the Ethernet tab. Verify if 
    the speed and duplex reported 
    are what is expected. Yes
    Go to step 5.
    No
    Change speed and duplex 
    settings. See article http://
    docs.info.apple.com/article.
    html?path=Mac/10.5/
    en/8711.html. Go to step 6.
    5.   Check for MTU (Maximum 
    Transmission Unit) issues. See 
    kBase #HT2532: Mac OS X 
    10.4 or later: How to change 
    the MTU for troubleshooting 
    purposes. Verify if changing 
    MTU settings on computer 
    resolves issue.  Yes
    Go to step 6.
    No Ethernet controller damaged. 
    Replace logic board. M10
    6.  If changing speed, duplex 
    or MTU settings allows 
    connectivity, check with a 
    known-good, same-model 
    computer. Verify if known-good 
    computer produces the same 
    results. Yes
    Check with ISP or Network 
    Administrator concerning 
    speed, duplex & MTU settings.
    No Verify with known good OS. 
    If issue persists, replace logic 
    board. M10
    Wireless Input Device Doesn’t Pair
    Quick Check
    Symptoms
    Quick Check
    Wireless Input Device Doesn’t 
    Pair
    •  Can’t get system to recognize 
    Bluetooth keyboard or mouse 1.
      Remove and reinstall batteries for device.
    2.  Check that device is powering on.
    3.   Use known-good batteries with device.
    4.  Ensure that device is being used within 30-foot 
    range for Bluetooth devices.
    5.   Ensure that the latest Software Updates have 
    been applied.  
    						
    							iMac (21.5-inch, Late 2009) Symptom Charts — Communications 75 2010-11-18
    Deep Dive
    CheckResultAction Code
    1.   Without any wired input 
    devices connected, and with a 
    wireless mouse in discoverable 
    mode, startup computer. Verify 
    if computer shows Bluetooth 
    Mouse Setup Assistant. Yes
    Bluetooth hardware is active. 
    Go to step 6.
    No Go to step 2.
    2.  Connect a wired mouse and 
    run System Profiler. Verify if 
    Bluetooth interface is listed 
    under USB in System Profiler. Yes
    Bluetooth hardware is 
    present. Go to step 6.
    No Remove glass and LCD panel, 
    reseat both ends of cable 
    between Bluetooth board and 
    logic board. Go to step 3.
    3.   Use an external monitor. 
    Run System Profiler. Verify if 
    Bluetooth interface is listed 
    under USB in System Profiler. Yes
    Bluetooth hardware is now 
    present. Go to step 6.
    No Replace Bluetooth cable.  
    Go to step 4.  X03
    4.  Run System Profiler. Verify if 
    Bluetooth interface is listed 
    under USB in System Profiler. Yes
    Bluetooth hardware is now 
    present. Go to step 6.
    No Replace Bluetooth board.  
    Go to step 5. M11
    5.   Run System Profiler. Verify if 
    Bluetooth interface is listed 
    under USB in System Profiler. Yes
    Bluetooth hardware is now 
    present. Go to step 6.
    No  Replace logic board. M11
    6.  Run Software Update and 
    apply any available Bluetooth 
    updates. Activate Bluetooth 
    in System Preferences (or 
    Apple menu icon) then select 
    “Configure a new Bluetooth 
    device” (or run Bluetooth 
    Mouse Setup Assistant). Verify if 
    Bluetooth mouse is seen. Yes
    Bluetooth discovery is now 
    active. Go to step 7.
    No Replace Bluetooth antenna. X03
    7.   With a wireless mouse on, and 
    in discoverable mode, verify 
    if  you can successfully pair 
    mouse with the assistant. Yes
    Check for stability.  
    Go to step 8.
    No
    Go to Wireless Input Device 
    Loses Connection symptom 
    flow.  
    						
    							iMac (21.5-inch, Late 2009) Symptom Charts — Communications 76 2010-11-18
    8. With wireless mouse paired, 
    verify if mouse stays connected. Yes
    Issue resolved.
    No Inspect and reseat Bluetooth 
    antenna cable. Replace a 
    damaged antenna cable, or 
    Bluetooth board if its antenna 
    connector is damaged.  
    Go to step 9.
    9.   With wireless mouse paired, 
    verify if mouse stays connected. Yes
    Antenna issue. Issue resolved.
    No
    Go to Wireless Input Device 
    Loses Connection symptom 
    flow.
    Wireless Input Device Loses Connection
    Quick Check
    Symptoms Quick Check
    Wireless Input Device Loses 
    Connection
    •  Wireless keyboard, mouse, or 
    other wireless input device 
    loses connection.
    1.  Remove and reinstall batteries for device.
    2.  Check that device is powering on.
    3.   Use known-good batteries with device.
    4.  Ensure other devices pair and keep connection 
    without issue. If not, see AirPort/Bluetooth 
    Issues symptom flow.
    5.   Ensure that device is being used within 30-foot 
    range for Bluetooth devices.
    6.  Ensure that the latest Software Updates have 
    been applied.
    Deep Dive
    Check ResultAction Code
    1.   Open System Preferences > 
    Bluetooth. Paired items and 
    their connection status are 
    shown. Verify if device is listed. Yes
    Device has been paired.  
    Go to step 2.
    No Device is not paired. Make 
    device discoverable and open 
    Bluetooth Setup Assistant.  
    Go to step 3.  
    						
    							iMac (21.5-inch, Late 2009) Symptom Charts — Communications 77 2010-11-18
    2. Make sure device is on. 
    In System Preferences > 
    Bluetooth, select device and 
    from the Action menu (gear) 
    choose “Connect”. Verify if 
    device connects successfully. Yes
    Go to step 7.
    No Delete pairing in System 
    Preferences. Go to step 3.
    3.   With the device on, run 
    Bluetooth Setup Assistant. 
    Verify if you can successfully 
    pair the device. Yes
    Go to step 7.
    No Restart computer.  
    Go to step 4.
    4.  With device on, run Bluetooth 
    Setup Assistant. Verify if you 
    can successfully pair device. Yes
    Go to step 7.
    No Create a new Admin User.  
    Go to step 5.
    5.   Log into new Admin User 
    account. With device on, run 
    Bluetooth Setup Assistant. 
    Verify if you can successfully 
    pair device with new user 
    account. Yes
    User account issue. 
    Troubleshoot software on 
    User account. No hardware 
    repair needed.
    No Remove the following file: /
    Library/Preferences/com.
    apple.Bluetooth.plist 
    Go to step 6.
    6.  Restart computer, With device 
    on, run Bluetooth Setup 
    Assistant. Verify if you can 
    successfully pair device. Yes
    Go to step 7.
    No
    Go to AirPort/Bluetooth 
    Issues symptom flow.
    7.   With device paired and 
    connected, verify if device 
    connection is stable if used 
    normally. Yes
    Issue resolved.
    No Check wireless device manual 
    to verify if device is being 
    used in accordance with 
    manufacturer’s specifications 
    (range, OS support, battery 
    types). Go to step 8.
    8.  Verify if device is performing to 
    stated specifications. Yes
    Educate user. Issue resolved.
    No Replace wireless device.  
    						
    							iMac (21.5-inch, Late 2009) Symptom Charts — Communications 78 2010-11-18
    Uncategorized Symptoms
    Quick Check
    SymptomsQuick Check
    Uncategorized Symptoms
    •  Unable to locate appropriate 
    symptom code.
    1.  Verify System Preferences/Network settings 
    are configured appropriately to support 
    communication method.
    2.  For Ethernet connection issues verify that cable 
    being used functions when used with another 
    known-good system.
    3.   For wireless connection issues review user 
    environment to determine whether possible 
    interference from other 2.4GHz or 5GHz 
    communications devices might be contributing 
    to issue. See kBase #HT1365: AirPort and 
    Bluetooth: Potential sources of interference for 
    wireless devices and networks.
    Deep Dive
    Check ResultAction Code
    1.   Verify if existing symptom code 
    applies to issue reported by 
    user. Yes
    Jump to appropriate 
    symptom code flow.
    No
    Document reported failure 
    and send feedback to 
    [email protected] 
    stating that a suitable 
    symptom code wasn’t found. 
    Provide as much detail as 
    possible. N99  
    						
    							iMac (21.5-inch, Late 2009) Symptom Charts — Input/Output Devices 79 2010-11-18
    Input/Output Devices
    Apple Remote Inoperable
    Unlikely cause: LCD display, power supply, hard drive, optical drive, fans
    Quick Check
    SymptomsQuick Check
    Apple Remote Inoperable
    •  Apple Remote doesn’t bring up 
    Front Row
    •  Apple Remote doesn’t control 
    iTunes
    •  Apple Remote doesn’t control 
    computer volume 1.
      Make sure Apple Remote is within 30 ft. of 
    computer, and has an unobstructed line-of-sight 
    to computer.
    2.  Make sure lens end of Apple Remote is pointing 
    directly at front of computer.
    3.   Make sure “Disable remote control infrared 
    receiver” checkbox in System Preferences > 
    Security is not checked.
    4.  Ensure that all software and firmware updates for 
    this model have been installed to take advantage 
    of any available bug fixes.
    Deep Dive
    Check ResultAction Code
    1.   Open Photo Booth or iChat’s 
    video preview window. Point 
    Apple Remote at built-in 
    camera and press any button 
    on Apple Remote. Verify if a 
    white, flashing light is visible in 
    video preview. Yes
    Apple Remote is functioning. 
    Go to step 2.
    No Replace Apple Remote 
    battery. 
    Go to step 3.
    2.  Open System Preferences 
    > Security. Verify if “Unpair” 
    setting is available in this 
    preference panel. Yes
    Click “Unpair” button to 
    disable possible pairing with 
    another Apple Remote.  
    Go to step 4.
    No Possible IR board issue.  
    Go to step 5.
    3.   With replacement battery, 
    verify if white flashing light 
    is visible coming from Apple 
    Remote in video preview 
    window. Yes
    Battery issue. Issue resolved. X05
    No Apple Remote defective. 
    Replace Apple Remote. X04  
    						
    							iMac (21.5-inch, Late 2009) Symptom Charts — Input/Output Devices 80 2010-11-18
    4. After clicking “Unpair”, verify if 
    the computer now responds to 
    the Apple Remote. Yes
    Pairing issue. Issue resolved.
    No Possible IR board issue.  
    Go to step 5.
    5.   Open System Profiler. Verify if 
    “IR Receiver” is listed in USB list 
    of devices. Yes
    IR board reporting on USB 
    bus. Check for lens block.  
    Go to step 6.
    No Inspect and reseat IR cable 
    connection to logic board.  
    Go to step 7.
    6.  Check that IR board is correctly 
    fitted and aligned with Apple 
    window and that lens is not 
    blocked by any foreign material 
    and re-test. Verify if computer 
    responds to Apple Remote. Yes
    Lens blocked or sensor not 
    aligned with window. Issue 
    resolved. X03
    No Lens damaged or inoperable. 
    Replace IR board. Go to step 7.
    7.   After reseating or replacing 
    IR board, verify if “IR Receiver” 
    is listed under USB in System 
    Profiler, and that computer now 
    responds to Apple Remote. Yes
    IR module reseated/replaced. 
    Issue resolved. X03
    No If IR board was only reseated, 
    replace IR cable. Go to step 8.
    8.  After replacing IR cable, verify 
    if “IR Receiver” is listed under 
    USB in System Profiler, and that 
    computer now responds to 
    Apple Remote. Yes
    IR cable replaced. Issue 
    resolved. X03
    No Replace IR board. Go to step 9.
    9.   After replacing IR board, verify 
    if “IR Receiver” is listed under 
    USB in System Profiler, and that 
    computer now responds to 
    Apple Remote. Yes
    IR board replaced. Issue 
    resolved. X03
    No Replace logic board. M23  
    						
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