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Lenovo A5500h Service Manual

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    							Lenovo A5500
    27
    This section presents exploded figures with the instructions to indicate how to 
    remove and replace the FRU. Make sure to observe the following general rules:
    1.Do not attempt to service any computer unless you have been trained and 
    certified. An untrained person runs the risk of damaging parts.
    2.Before replacing any FRU, review “FRU replacement notices” on page 26.
    3.Begin by removing any FRUs that have to be removed before the failing FRU. 
    Any of such FRUs are listed at the top of the page. Remove them in the order 
    in which they are listed.
    4.Follow the correct sequence in the steps to remove the FRU, as given in the 
    figures by the numbers in square callouts.
    5.When turning a screw to replace an FRU, turn it in the direction as given by 
    the arrow in the figure.
    6.When removing the FRU, move it in the direction as given by the arrow in the 
    figure.
    7.To put the new FRU in place, reverse the removal procedures and follow any 
    of the notes that pertain to replacement. For information about connecting 
    and arranging internal cables, see “Locations” on page 44.
    8.When replacing an FRU, use the correct screw as shown in the procedures.
    Attention: After replacing an FRU, do not turn on the computer until you have 
    made sure that all screws, springs, and other small parts are in place and none 
    are loose inside the computer. Verify this by shaking the computer gently and 
    listening for rattling sounds. Metallic parts or metal flakes can cause electrical 
    short circuits.
    Attention: The system board is sensitive to, and can be damaged by, electrostatic 
    discharge. Before touching it, establish personal grounding by touching a 
    ground point with one hand or using an electrostatic discharge (ESD) strap 
    (P/N 6405959) to remove potential shock reasons.
    Removing and replacing an FRU
    DANGER
    Before removing any FRU, turn off the computer, unplug all power cords 
    from electrical outlets, remove the battery pack, and then disconnect any of 
    the interconnecting cables. 
    						
    							Lenovo A5500 Hardware Maintenance Manual
    281010 Side door
    Figure 1. Removal steps of side door
    Insert a finger to open the side door as shown in the picture. 
    Pull out the side door from its cavity. 
    						
    							Lenovo A5500
    29 1020 Micro SD card and Micro SIM card
    Figure 2. Removal steps of Micro SD card and Micro SIM card
    Insert a finger to open the side door as shown in the picture.
    Press the SD card or SIM card to make it pop up. 
    						
    							Lenovo A5500 Hardware Maintenance Manual
    30
    Figure 2. Removal steps of Micro SD card and Micro SIM card (continued)
    Pull out the SD card or SIM card from its slot. 
    						
    							Lenovo A5500
    31 1030 Back cover
    Figure 3. Removal steps of back cover
    Insert a finger to open the side door as shown in the picture.
    Remove the screw  .
    StepScrew (quantity)ColorTorque
    M1.4 × 3.0 mm (1) Silver
    1
    1
    1 
    						
    							Lenovo A5500 Hardware Maintenance Manual
    32
    Figure 3. Removal steps of back cover (continued)
    Insert the guitar pick and slide along to release the back cover.
    Remove the back cover. 
    						
    							Lenovo A5500
    33 1040 Power key and volume key
    For access, remove this FRU in order:
    “1030 Back cover ” on page 31
    Figure 4. Removal steps of power key and volume key
    Lift up the power key and volume key as shown in the picture. 
    						
    							Lenovo A5500 Hardware Maintenance Manual
    341050 ANT carrier
    For access, remove this FRU in order:
    “1030 Back cover ” on page 31
           
    Figure 5. Removal steps of ANT carrier
    Remove the three screws .
    Remove the ANT carrier.
    StepScrew (quantity)ColorTorque
    M1.4 × 3.0 mm (3) Silver
    1
    1
    1
    1
    1 
    						
    							Lenovo A5500
    35 1060 Battery pack
    For access, remove this FRU in order:
    “1030 Back cover ” on page 31
    Figure 6. Removal steps of battery pack
    Insert the guitar pick to disconnect the connector as shown in the picture.
    DANGER
    Only use the battery specified in the parts list for your computer. Any other 
    battery could ignite or explode.
    CAUTION
    Risk of explosion if the battery is replaced with an incorrect type.
    When replacing the lithium battery, use only the same or an equivalent type 
    that is recommended by the manufacturer. The battery contains lithium and 
    can explode if not properly used, handled, or disposed of.
    Dispose of used batteries according to the instructions. Do not:
    Throw or immerse into water
    Heat to more than 100°C (212°F)
    Repair or disassemble 
    						
    							Lenovo A5500 Hardware Maintenance Manual
    36
    Insert a flat blade to detach the battery pack.
    Figure 6. Removal steps of battery pack (continued)
    Remove the battery pack from its socket. 
    						
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