Lenovo ThinkPad X220i Hardware Maintenance Manual - Page 96

Diagnostics, ThinkPad Devices, HDD Active Protection Test, Attention, Removal steps of system board

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If the system supports PC-Doctor for DOS, after replacing the system board, run PC-Doctor for DOS to make sure that 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 Digitizer pen" on page 63 • "1020 Battery pack" on page 63 • "1050 Hinge caps" on page 68 • "1060 Keyboard" on page 68 • "1070 Palm rest" on page 71 • "1090 PCI Express Mini Card for wireless LAN/WiMAX" on page 75 • "1100 PCI Express Mini Card for wireless WAN" on page 77 • "1110 Bluetooth daughter card" on page 78 • "1120 Keyboard bezel" on page 79 • "1130 LCD assembly" on page 81 • "1140 DC-in connector, base cover, fan, digitizer pen case, and pen switch assembly" on page 84 Removal steps of system board and ExpressCard slot assembly The following components soldered on the system board are extremely sensitive. When you service the system board, avoid any kind of rough handling. a Platform Controller Hub (PCH) b CPU c Accelerometer chip for the HDD Active Protection System a c b Note: The ExpressCard slot assembly is attached to the system board. 90 Hardware Maintenance Manual

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If the system supports PC-Doctor for DOS, after replacing the system board, run PC-Doctor for DOS to
make sure that 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 Digitizer pen” on page 63
•
“1020 Battery pack” on page 63
•
“1050 Hinge caps” on page 68
•
“1060 Keyboard” on page 68
•
“1070 Palm rest” on page 71
•
“1090 PCI Express Mini Card for wireless LAN/WiMAX” on page 75
•
“1100 PCI Express Mini Card for wireless WAN” on page 77
•
“1110 Bluetooth daughter card” on page 78
•
“1120 Keyboard bezel” on page 79
•
“1130 LCD assembly” on page 81
•
“1140 DC-in connector, base cover, fan, digitizer pen case, and pen switch assembly” on page 84
Removal steps of system board and ExpressCard slot assembly
The following components soldered on the system board are extremely sensitive. When you service the
system board, avoid any kind of rough handling.
a
Platform Controller Hub (PCH)
b
CPU
c
Accelerometer chip for the HDD Active Protection System
b
c
a
Note:
The ExpressCard slot assembly is attached to the system board.
90
Hardware Maintenance Manual