Lenovo B8080h Service Manual

 
   
    
 
       
   
 
   
     
Lenovo B8080 
1060 Sub 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 
(picture from WiFi version product)
 
Figure 6-1. Unlocking the connector of the volume key FPC
 
2. Pull out the volume key FPC from it s connector using a pair of tweezers. 
(picture from 3G version product) 
(picture from WiFi version product) 
Figure 6-2. Pulling out the volume key FPC 
48  

 
 
Lenovo B8080 
3. Unlock the connector of the TP FPC on  the sub board using a guitar pick. 
Figure 6-3. Unlocking the connector of the TP FPC 
4. Pull out the TP FPC from its connector using a pair of tweezers. 
Figure 6-4. Pulling out the TP FPC 
49  

   
   
 
Lenovo B8080 Hardware Maintenance Manual 
5. Remove screwsa  on the sub board. 
Figure 6-5. The screws on the sub board 
Part No. Screw (quantity)  Color Torque 
a Phillips flat head screw, M1.4 × 1.3, wide 
head (4)  black 
N/A 
6.  Remove the sub board from the tablet. 
Figure 6-6. The removed sub board 
50  

 
 
   
 
Lenovo B8080 
1070 Volume key FPC 
For access, remove the following FRUs in order: 
• “1010 Rear cover ” on page 28 
•  “1060 Sub board” on page 47 
1.	  Pry off the volume key FPC with its frame from the front module using a thin 
flat blade. 
Figure 7-1. Prying off the volume key FPC 
2.	 Remove the volume key FPC. 
Figure 7-2. The removed volume key FPC 
51  

 
 
 
Lenovo B8080 Hardware Maintenance Manual 
1080 Volume key 
For access, remove the following FRUs in order: 
•  “1010 Rear cover ” on page 28
 
•  “1060 Sub board” on page 47
 
•  “1070 Volume key FPC” on page 51
 
1.  Detach the volume key using a pair of tweezers. 
Figure 8-1. Detaching the volume key 
2. Remove the volume key. 
Figure 8-2. The removed volume key 
52  

 
    
     
 
 
Lenovo B8080 
1090 Rear camera 
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 9-1. Disconnecting the power supply of the tablet 
2.	 Detach the FPC of the rear camera from  its connector on the main board using 
a guitar pick. 
Figure 9-2. Detaching the FPC of the rear camera 
53  

  
Lenovo B8080 Hardware Maintenance Manual 
3. Detach the rear camera from its seat on  the left speaker box by inserting a thin 
flat blade under the camera bottom. 
Figure 9-3. Detaching the rear camera 
4.  Remove the rear camera from the tablet. 
Figure 9-4. The removed rear camera 
54  

    
     
     
Lenovo B8080 
1100 Front camera 
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 10-1. Disconnecting the power supply of the tablet 
2.	 Unlock the connector of the front camera on the main board using a guitar 
pick. 
Figure 10-2. Unlocking the connector of the front camera 
55  

Lenovo B8080 Hardware Maintenance Manual 
3. Slowly peel off the copper foil of th e front camera from the front module. 
Figure 10-3. Peeling off the copper foil 
4. Remove the front camera from the tablet. 
Figure 10-4. The removed front camera 
56