Lenovo B8080h Service Manual

							 
 
     
     
 
        
     
 
   
 
     
 
   
 
 
    
 
Lenovo B8080 
Removing and replacing an FRU 
This section presents exploded figures wi th 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 comput er unless you have been trained and 
certified. An untrai ned 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 section that describes the 
detailed removing and replacing proc edure for the failing FRU. Remove 
them in the order in which they are listed. 
4.	  Follow the correct sequence in the step s to remove the FRU, while referring 
to figures provided in the procedure. 
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 73. 
8.	  When replacing an FRU, use the correc t screw as specified in the procedures. 
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. 
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, establ ish 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. 
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Lenovo B8080 Hardware Maintenance Manual 
1010 Rear cover 
1.	 Open the hinge frame and then remove th e card slot cover of the tablet using 
a thin flat blade or guitar pick. 
Figure 1-1. Opening the card slot cover 
2.	 Remove screwsa  on the rear cove r as shown in the figure below. 
Figure 1-2. The screws on the rear cover 
Part No. Screw (quantity)  Color Torque 
a Phillips flat head screw, M1.4 × 1.5 (3)  Silver N/A 
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Lenovo B8080 
Note: 
The screws are sealed by the manufacturer for checking the warranty 
qualification of the product. 
3.  Separate the top right corner of the re ar cover from the main body of the 
tablet using a suction tool as  shown in the figure below. 
Figure 1-3. Separating the rear cover from the main body (top right) 
4.	  Move the suction tool to the left alon g the upper edge to unlock the entire 
upper edge of the rear co ver from the main body. 
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Lenovo B8080 Hardware Maintenance Manual 
Figure 1-4. Separating the rear cover from the main body (top center and top left) 
5.	  Attach the suction tool to the areas as  shown in the figure below to disengage 
the three locks inside the rear cover. 
Figure 1-5. Positions  of the three locks inside the rear cover 
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Lenovo B8080 
CAUTION: 
Handle with care! 
The rear cover or its locks can be damaged! 
Do not  try to lift the rear cover off the ta blet when it is tightly locked at some 
places. Use the suction tool to unlock these places first. 
6.  Slowly remove the rear cover. 
Figure 1-6. The removed rear cover 
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Lenovo B8080 Hardware Maintenance Manual 
1020 Right speaker 
For access, remove the following FRU: 
• “1010 Rear cover ” on page 28 
1.	  Disconnect the power supply to the tabl et by detaching the battery FPC from 
its connector on the main  board using a guitar pick. 
Figure 2-1. Disconnecting the power supply of the tablet 
2.	 Unlock the FPC connector of the right sp eaker on the sub board using a guitar 
pick. 
Figure 2-2. Unlocking the connector 
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Lenovo B8080 
3. Pull out the FPC of the right speaker  from its connector using a pair of 
tweezers. 
Figure 2-3. Pulling out the FPC of the right speaker 
4.	  Remove screws a on the holder of the right speaker as shown in the figure 
below. 
Figure 2-4. The screws on the holder 
Step  Screw (quantity)  Color Torque 
a Phillips flat-head screw, M1.4 × 3.0 (2)  Silver N/A 
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							Lenovo B8080 Hardware Maintenance Manual 
5. Remove the holder of the right speaker. 
Figure 2-5. Removing the holder 
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Lenovo B8080 
6.	  Lift one end of the right speaker using a  thin flat blade and at the same time 
push the right speaker on the other end in  the direction as shown in the figure 
below. 
Figure 2-6. Removing the right speaker 
7.	  Remove the right speaker. 
Figure 2-7. The removed right speaker 
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Lenovo B8080 Hardware Maintenance Manual 
1030 Battery pack 
For access, remove the following FRUs in order: 
•  “1010 Rear cover ” on page 28 
•  “1020 Right speaker ” on page 32 
Rechargeable Battery Notice 
CAUTION: 
Risk of explosion if the battery is replaced with an incorrect type. 
When replacing the lithium battery, use on ly the same or an equivalent type 
that is recommended by the manufacture r. The battery contains lithium and 
can explode if not properly used, handled, or disposed of. 
Dispose of the used battery accord ing to the instructions. Do not: 
•  Throw or immerse into water 
•  Heat to more than 100°C (212°F) 
•  Repair or disassemble 
1.  Disconnect the battery FPC from its  connector on the main board using a 
guitar pick. 
Figure 3-1. Disconnecting the battery FPC 
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