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. The arrows are marked in numeric
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. Go to the removal procedure for
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. See "Locations" for internal cable
connection and arrangement information.
CAUTION:
Before removing any FRU, power-off the system, unplug all power cords from
electrical outlets, remove the battery packs, then disconnect any
interconnecting cables.
CAUTION:
The battery pack contains small amounts of nickel and cadmium. Do not
disassemble it, throw it into fire or water, or short-circuit it. Dispose
of the battery pack as required by local ordinances or regulations.
Warning: The hard disk drive has sensitive parts. Improper handling of
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 on the hard disk.
Warning: The system board and adapters are sensitive to, and can be
damaged by, electrostatic discharge. Establish personal grounding by
touching a ground point with one hand before touching these units.
Note:
An electrostatic discharge (ESD) strap may be used to establish
personal grounding.
Subtopics
6.1 1010 Keyboard and Top Cover
6.2 1020 Trackball Assembly
6.3 1030 Indicator Card and Speaker
6.4 1040 Hard Disk Drive
6.5 1050 Diskette Drive
6.6 1060 Backup Battery
6.7 1070 Keyboard Control Card
6.8 1080 Display Control Card
6.9 1090 System Board and I/O Panel Assembly
6.10 1100 Voltage Converter
6.11 1110 Math Coprocessor
6.12 1120 Communication Adapter
6.13 1130 IC DRAM Card
6.14 1140 LCD Assembly
6.15 1150 LCD Panel
IBM PS/2 Model CL57 SX HMR
Removals and Replacements
_ Copyright IBM Corp. 1991
6.0 - 1
