Lenovo ThinkPad L520 Hardware Maintenance Manual - Page 99

Accelerometer chip for the HDD Active Protection System, Multi Chip Package MCP processor

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Page 99 highlights

• "1020 ExpressCard blank bezel and Media Card blank bezel" on page 60 • "1030 Optical drive or travel cover" on page 62 • "1040 Thermal cover" on page 63 • "1050 Hard disk drive or solid state drive assembly" on page 64 • "1060 DIMM" on page 67 • "1070 Fan assembly" on page 67 • "1080 CPU" on page 70 • "1090 SIM slot cover" on page 71 • "1110 Wireless WAN slot cover and PCI Express Mini Card for wireless WAN" on page 72 • "1110 mSATA solid state drive" on page 73 • "1120 Palm rest assembly with cables" on page 75 • "1130 PCI Express Mini Card for wireless LAN" on page 78 • "1140 Backup battery" on page 80 • "1150 Bluetooth daughter card " on page 80 • "1160 Media Card Reader slot board and Media Card Reader cable assembly" on page 81 • "1170 Keyboard" on page 83 • "1180 Keyboard bezel" on page 85 • "1190 LCD unit" on page 87 • "2010 Top shielding assembly" on page 90 Location of major sensitive components on the system board in ThinkPad L420, L421, and L520 models The following components soldered on the top side of the system board are extremely sensitive. When you service the system board, avoid any kind of rough handling. a Accelerometer chip for the HDD Active Protection System b Multi Chip Package (MCP) processor c Video chip (only for discrete models) d Platform Controller Hub (PCH) For ThinkPad L420 and L421 models with an integrated thermal module (top side view): a For ThinkPad L420 and L421 models with an integrated thermal module (bottom side view): Chapter 8. Removing and replacing a FRU 93

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•
“1020 ExpressCard blank bezel and Media Card blank bezel” on page 60
•
“1030 Optical drive or travel cover” on page 62
•
“1040 Thermal cover” on page 63
•
“1050 Hard disk drive or solid state drive assembly” on page 64
•
“1060 DIMM” on page 67
•
“1070 Fan assembly” on page 67
•
“1080 CPU” on page 70
•
“1090 SIM slot cover” on page 71
•
“1110 Wireless WAN slot cover and PCI Express Mini Card for wireless WAN” on page 72
•
“1110 mSATA solid state drive” on page 73
•
“1120 Palm rest assembly with cables” on page 75
•
“1130 PCI Express Mini Card for wireless LAN” on page 78
•
“1140 Backup battery” on page 80
•
“1150 Bluetooth daughter card ” on page 80
•
“1160 Media Card Reader slot board and Media Card Reader cable assembly” on page 81
•
“1170 Keyboard” on page 83
•
“1180 Keyboard bezel” on page 85
•
“1190 LCD unit” on page 87
•
“2010 Top shielding assembly” on page 90
Location of major sensitive components on the system board in ThinkPad L420, L421, and L520 models
The following components soldered on the top side of the system board are extremely sensitive. When you
service the system board, avoid any kind of rough handling.
a
Accelerometer chip for the HDD Active Protection System
b
Multi Chip Package (MCP) processor
c
Video chip (only for discrete models)
d
Platform Controller Hub (PCH)
For ThinkPad L420 and L421 models with an integrated thermal module (top side view):
a
For ThinkPad L420 and L421 models with an integrated thermal module (bottom side view):
Chapter 8
.
Removing and replacing a FRU
93