Lenovo A7600h Service Manual

							Lenovo A7600
47
9.Peel off the conductive fabric (shown in figure below) of the antenna from the 
battery holder.
Figure 6-9. The conductive fabric of the antenna 
						

							Lenovo A7600 Hardware Maintenance Manual
48
10.Slowly remove the antenna and CAP sensor FPC assembly from the front 
module while keeping its conductive fabric clear of the cables of the right 
speaker.
Figure 6-10. Removing the antenna and CAP sensor FPC assembly
The antenna and CAP sensor FPC assembly is now removed. 
						

							Lenovo A7600
49 1070 SIM board FPC
For access, remove the following FRUs in order:
• “1010 Rear cover and side keys” on page 28
• “1020 Battery pack” on page 33
1.Peel off the mylar on the SIM board FPC connector on the SIM board.
Figure 7-1. Peeling off the mylar at the SIM board end
2.Unlock the above-mentioned SIM board FPC connector using a guitar pick or 
a thin flat blade.
Figure 7-2. Unlocking the SIM board FPC connector (SIM board end) 
						

							Lenovo A7600 Hardware Maintenance Manual
50
3.Peel off the mylar on the SIM board FPC connector on the main board.
Figure 7-3. Peeling off the mylar at the main board end
4.Unlock the SIM board FPC connector on the main board using a guitar pick 
or a thin flat blade.
Figure 7-4. Unlocking the SIM board FPC connector (main board end) 
						

							Lenovo A7600
51
5.Pull out the SIM board FPC from both connectors using a pair of tweezers.
Figure 7-5. Pulling out the SIM board FPC
The SIM board FPC is now removed. 
						

							Lenovo A7600 Hardware Maintenance Manual
521080 SIM board
For access, remove the following FRUs in order:
• “1010 Rear cover and side keys” on page 28
• “1020 Battery pack” on page 33
• “1070 SIM board FPC” on page 49
1.Remove screws   on the SIM board.
Figure 8-1. The screws on the SIM board
Part No.Screw (quantity)ColorTorque
Phillips flat head screw (2) Silver N/A
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 stack 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.
a
a 
						

							Lenovo A7600
53
2.Remove the SIM board.
Figure 8-2. The removed SIM board 
						

							Lenovo A7600 Hardware Maintenance Manual
541090 Main board
For access, remove the following FRUs in order:
• “1010 Rear cover and side keys” on page 28
• “1020 Battery pack” on page 33
• “1030 Battery holder ” on page 35
• “1040 LCM FPC” on page 37
• “1070 SIM board FPC” on page 49
• “1080 SIM board” on page 52
and
Detach the following FRUs from the main board:
• Rear camera (see Step 1 in “1050 Rear camera” on page 41)
• Antenna and CAP sensor FPC assembly (see Step 1 to 3 and Step 7 in “1060 
Antenna and CAP sensor FPC assembly” on page 43)
1.Peel off the mylar on the TP FPC connector on the main board.
Figure 9-1. Peeling off the mylar on the TP FPC connector
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 stack 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. 
						

							Lenovo A7600
55
2.Unlock the TP FPC connector using a guitar pick.
Figure 9-2. Unlocking the TP FPC connector
3.Pull out the TP FPC from its connector using a pair of tweezers.
Figure 9-3. Pulling out the TP FPC 
						

							Lenovo A7600 Hardware Maintenance Manual
56
4.Desolder the wires of the vibrator motor from the main board at the position 
shown in the figure below.
Figure 9-4. Desoldering the wires of the vibrator motor