Lenovo B8080h Service Manual

    
     
    
Lenovo B8080 
1110 WiFi antenna 
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 11-1. Disconnecting the power supply of the tablet 
2.	 Detach the cable of the WiFi antenna  from its connector on the main board 
using a guitar pick. 
Figure 11-2. Detaching the cable of the WiFi antenna 
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Lenovo B8080 Hardware Maintenance Manual 
3. Remove screw a on the WiFi antenna as shown in the figure below. 
Figure 11-3. The screw on the WiFi antenna 
Step Screw (quantity)  Color Torque 
a Phillips flat-head screw, M1.4 × 2.5 (1)  Black N/A 
4.  Peel off the conductive fa bric of the WiFi antenna as shown in the figure 
below. 
Figure 11-4. Peeling off  the conductive fabric 
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Lenovo B8080 
5. Remove the WiFi antenna. 
Figure 11-5. The removed WiFi antenna 
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Lenovo B8080 Hardware Maintenance Manual 
1120 Left speaker 
For access, remove the following FRUs in order: 
• “1010 Rear cover ” on page 28 
•  “1090 Rear camera” on page 53 
1.	  Unlock the connector of the left speaker on the main board using a guitar 
pick. 
Figure 12-1. Unlocking the connector of the left speaker 
2.	 Pull out the FPC of the left speaker fr om the unlocked connector using a pair 
of tweezers. 
Figure 12-2. Pulling out the FPC of the left speaker 
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Lenovo B8080 
3. Remove screws a on the left speaker as shown in the figure below. 
Figure 12-3. The screws on the left speaker 
Step Screw (quantity)  Color Torque 
a Phillips flat-head screw, M1.4 × 3.0 (3)  Silver N/A 
4.  Remove the left speaker. 
Figure 12-4. The removed left speaker 
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Lenovo B8080 Hardware Maintenance Manual 
1130 LCD FPC 
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 13-1. Disconnecting the power supply of the tablet 
2.	 Unlock the connector of the LCD FPC on the main board using a guitar pick. 
Figure 13-2. Unlocking the connector of the LCD FPC (main board side) 
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Lenovo B8080 
3. Unlock the connector of the LCD FPC on  the front module of the tablet using 
a guitar pick. 
Figure 13-3. Unlocking th e connector of the LCD FP C (front module side) 
4.	 Pull out any one end of the LCD FPC  from its connector using a pair of 
tweezers. 
Figure 13-4. Pulling out the LCD FPC 
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Lenovo B8080 Hardware Maintenance Manual 
5. Remove the LCD FPC. 
Figure 13-5. The removed LCD FPC 
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Lenovo B8080 
1140 Main board 
Important notices for handling PCB: 
When handling PCB, bear the following in mind: 
•  Be careful not to drop the PCB onto a bench top that has a hard surface, 
such as surface made of metal, wood, or composite materials. 
•  Avoid rough handling of any kind. 
•  Make sure not to drop or stac k the PCB in the whole process. 
•  Make sure to put the PCB only on surface covered with such materials as  an ESD mat or conductive corrugated...

 
 
  
 
Lenovo B8080 Hardware Maintenance Manual 
2. Pull out the USB FPC from its connector using a pair of tweezers. 
Figure 14-2. Pulling out the USB FPC 
3. Remove screwsa  on the main board as shown in the figure below. 
Figure 14-3. The screws on the main board 
Part No.  Screw (quantity)  Color Torque 
a Phillips flat head screw, M1.4 × 1.3, wide 
head (6)  black 
N/A 
66