Lenovo A7-50 (English) Hardware Maintenance Manual - Lenovo A7-40/A7-50 Tablet - Page 41

PCBA, Be careful not to drop the PCB onto a bench top that has a hard surface

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Lenovo A3500 1040 PCBA 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. For access, remove the following FRUs: • "1010 Rear cover and side key" on page 28 • "1020 Battery pack" on page 31 and detach the following FRU: • Rear camera (Step 1 in "1030 Rear camera" on page 35) 1. Peel off the conductive fabrics that are stuck on the PCBA at one end, and the main FPC and front module, respectively, at the other end. Figure 4-1. Position of the conductive fabrics 37

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Lenovo A3500
37
1040 PCBA
For access, remove the following FRUs:
•
“1010 Rear cover and side key” on page 28
•
“1020 Battery pack” on page 31
and
detach the following FRU:
•
Rear camera (Step 1 in “1030 Rear camera” on page 35)
1.
Peel off the conductive fabrics that are stuck on the PCBA at one end, and the
main FPC and front module, respectively, at the other end.
Figure 4-1. Position of the conductive fabrics
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.