Lenovo ThinkPad Edge E125 Hardware Maintenance Manual - Page 73

Bluetooth daughter card on Top case assembly

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• Avoid rough handling of any kind. • At every point in the process, be sure not to drop or stack the system board. • If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated conductive surface. If your system supports PC-Doctor for DOS, after replacing the system board, run PC-Doctor for DOS to make sure that the HDD Active Protection System still functions. The procedure is as follows: 1. Place the computer on a horizontal surface. 2. Run Diagnostics ➙ ThinkPad Devices ➙ HDD Active Protection Test. Attention: Do not apply physical shock to the computer while the test is running. For access, remove these FRUs in order: • "1010 Battery pack" on page 52 • "1020 Bottom slot cover" on page 53 • "1040 Hard disk drive or solid state drive assembly" on page 54 • "1070 Keyboard" on page 59 • "1090 Top case assembly" on page 62 • "1100 Bluetooth daughter card" on page 64 Removal steps of system board 2 1 1 3 4 7 5 6 Step 1 Screw (quantity) M2 × 3 mm, wafer-head, nylon-coated (2) Color Black Torque 0.181 Nm (1.85 kgfcm) When installing: Make sure that the connectors are attached firmly to the system board. Chapter 8. Removing and replacing a FRU 67

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•
Avoid rough handling of any kind.
•
At every point in the process, be sure not to drop or stack the system board.
•
If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated
conductive surface.
If your system supports PC-Doctor for DOS, after replacing the system board, run PC-Doctor for DOS to make sure
that the HDD Active Protection System still functions. The procedure is as follows:
1. Place the computer on a horizontal surface.
2. Run
Diagnostics
➙
ThinkPad Devices
➙
HDD Active Protection Test
.
Attention:
Do not apply physical shock to the computer while the test is running.
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 52
•
“1020 Bottom slot cover” on page 53
•
“1040 Hard disk drive or solid state drive assembly” on page 54
•
“1070 Keyboard” on page 59
•
“1090 Top case assembly” on page 62
•
“1100 Bluetooth daughter card” on page 64
Removal steps of system board
7
2
1
1
4
3
6
5
Step
Screw (quantity)
Color
Torque
1
M2 × 3 mm, wafer-head, nylon-coated (2)
Black
0.181 Nm
(1.85 kgfcm)
When installing:
Make sure that the connectors are attached firmly to the system board.
Chapter 8
.
Removing and replacing a FRU
67