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 plate. 
For access, remove the following FRU: 
• “1010 Rear cover ” on page 28 
and 
Detach the following FRUs from the main board: 
•  Battery FPC (see Step 1 on page 36 in “1030 Battery pack”) 
•  Main FPC (see Step 4 on page 45 in “1050 Main FPC”) 
•  Rear camera (see Step 2 on page 53 in “1090 Rear camera” on page 53) 
•  Front camera (see Step 2 on page 55 in “1100 Front camera”) 
•  WiFi antenna (see Step 2 on page 57 in “1110 WiFi antenna”) 
•  Left speaker (see Step 1 on page 60 in “1120 Left speaker ”) 
•  LCD FPC (see Step 2 on page 62 in “1130 LCD FPC”) 
1.  Unlock the connector of the USB FPC  on  the main board using a guitar pick. 
Figure 14-1. Unlocking the connector of the USB FPC 
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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 
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