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6.0 Removals and Replacements
This section contains information on removals and replacements, and
locations.
The arrows in the "Removals and Replacements" section show the
direction of movement to remove a field replaceable unit (FRU), to
turn a screw to release the FRU.
order to show the correct sequence of removal.
When other FRUs must be removed before removing the failing FRU, they
are listed at the top of the page.
each FRU listed, remove the FRU, and then continue with the removal of
the failing FRU.
To replace a FRU, reverse the removal procedure and follow any notes
that pertain to replacement.
connection and arrangement information.
CAUTION:
Before removing any FRU, power-off the system, unplug all power cords from
electrical outlets, remove the battery pack, then disconnect any
interconnecting cables.
CAUTION:
The battery pack contains small amounts of nickel and cadmium.
disassemble it, throw it into fire or water, or short-circuit it.
of the battery pack as required by local ordinances or regulations.
Warning:
The hard disk drive has sensitive parts.
it can cause damage to, and permanent loss of data on, the hard disk.
Before removing the hard disk drive, have the user back up all the
information from the hard disk.
Warning:
The system board, adapters, and memory modules are sensitive to,
and can be damaged by, electrostatic discharge.
grounding by touching a ground point with one hand before touching these
units.
Note:
An electrostatic discharge (ESD) strap can be used to establish
personal grounding.
Subtopics
6.1 1010
Bottom Cover
6.2 1020
Optional Communication Adapter
6.3 1030
Memory Module Kit
6.4 1040
Voltage Converter
6.5 1050
Hard Disk Drive
6.6 1060
Diskette Drive
6.7 1070
System Board and Keyboard Control Card
6.8 1080
Keyboard Assembly
6.9 1090
I/O Panel Assembly
6.10 1100
Backup Battery
6.11 1110
Standby Battery
6.12 1120
LCD Bezel
6.13 1130
LCD Inverter
6.14 1140
LCD Panel
IBM PS/2 Model N51 SX HMR
Removals and Replacements
The arrows are marked in numeric
Go to the removal procedure for
See "Locations" for internal cable
Improper handling of
Establish personal
¦ Copyright IBM Corp. 1991
6.0 - 1
Do not
Dispose
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