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 plate. 
For access, remove the following FRU: 
• “1010 Rear cover ” on page 28 
and 
Detach the following FRUs: 
•  Battery FPC (see Step 1 on page 36 in “1030 Battery pack”) 
•  Right speaker (see Step 2 on page 32 and Step 3 on page 33 in “1020 Right 
speaker ” ) 
•  Vibrator motor (see Step 2 on page 42 in “1040 Vibrator motor ”) 
•  Main FPC (See Step 2 on page 44 in “1050 Main FPC”) 
1.	  Unlock the connector of the volume key  FPC on the sub board using a guitar 
pick. 
(picture from 3G version product) 
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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 
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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 
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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 
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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 
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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 
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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 
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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 
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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 
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							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 
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