Toshiba Tecra R10, Maintenance Manual

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4.1 Overview 4 Replacement Procedures
TECRA R10 Maintenance Manual (960-708) [CONFIDENTIAL] 4-5
Safety Precautions
Please read the following safety instructions before disassembling the computer and always
follow the instructions while working on the computer.
DANGER: 1) Always use the genuine battery that is authorized by Toshiba 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, FL inverter 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.
WARNING: 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.
CAUTION: 1) When you change a component, be sure the replacement component meets
the required specifications. Never use foreign parts, to avoid any risk of
damage to the computer.
2) To avoid any risk of short-circuit, fire or other internal damage, never allow
any metal objects such as screws or paper clips to fall into the unit. Be sure
to replace screws with the same size as those removed. Make sure all screws
are securely fastened. Loose screws can cause short circuits, resulting in
heat, smoke or fire.
3) Before lifting out an FRU or other component, make sure all cables to the
component have been disconnected, in order to reduce the risk of accidental
electric shock.
4) If you use AC power, be sure to use the cable that came with the computer or
one recommended by Toshiba.
5) Make sure that all replacement components meet the specifications for the
computer and that all cables and connectors are securely fastened, in order
to avoid the risk of electric shock.
6) Some parts inside the computer, such as the CPU and cooling module,
become very hot during operation. Conduct repair work after they have
cooled. Be careful around the CPU and cooling module to avoid burns.