Maintenance Manual (960-946) 4-2
Replacement Procedures
Chart Notation
The chart shows the case for the following example:
Removing the Memory module
All FRUs (4.9 Memory media, 4.10 SIM card (3G model), 4.11 Cover
Assembly and Base Assembly, 4.12 Battery pack) above “ 4.13 Memory
module” unit must be removed.
Please prepare required parts in advance, when replacing the relevant
items.
4.1 Safety Precautions
Please read the following safety instructions before disassembling the
computer and always follow the instructions while working on the computer.
1. Always use the genuine battery that is authorized by Dynabook or
compatible with the unit. Since other battery packs have different
specifications, they may be incompatible with the unit, and may burst or
explode.
Never heat or disassemble the battery pack, as that could cause
leakage of alkaline solution. Never throw the battery pack into a fire, as
that could cause the battery pack to explode.
2. The power supply and other components carry high voltages. If you
need to turn on the power of a partially disassembled computer to
check its operation, be very careful not to touch connectors or
components, in order to avoid the risk of electric shock.
Also, do not disassemble individual components in first-level
maintenance.
1. Turn off the power and disconnect the AC adaptor from the power
source, to avoid exposure to electric shock.
2. Batteries in the computer retain an electrical charge, so there is danger
of electrical shock even when the computer is disconnected from an
AC power source. Remove any metal jewelry or accessories such as
necklaces, bracelets or rings, in order to reduce the risk of electric
shock. Never work with wet or damp hands.
3. Be careful of edges and corners as these may cut.
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