2160 System Board Assembly
 CD-ROM Drive (2030)
 Battery Pack (2020)
 Hard Disk Drive (2040)
 Keyboard Unit (2080)
 Status Indicator (2090)
 Backup Battery (2110)
 Standby Battery and Front IR (2100)
 Logic Assembly (2115)
 Shield Assembly (2120)
 Video Card or Rear IR (2125)
 DC/DC Card (2130)
 DSP Card (2140)
 Interposer Card (2150)
 Processor Card (2180)
Notes:
1. Before removing and replacing the system board,
make sure that the PCMCIA cards are removed and
the eject levers are not sticking out.
2. When replacing the system board assembly, align the
power-key slide hub with the power-switch actuator by
moving the power-key in the direction of the arrow.
See the large circle in the figure. Before tightening
any screws, check that the power-switch operates
correctly.
3. Do not pull the PCMCIA slot assembly while removing
the system board.
372 IBM Mobile Systems HMM
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