Toshiba Tecra 700CS Maintenance Manual page 126

Safety Precautions
Before you begin disassembly, read the following safety precautions and observe them
carefully as you work.
DANGER:
1. Always use a lithium ion battery pack or backup 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.
Heating or disassembling the battery pack could cause leakage of alkaline solution.
Throwing the battery pack into a fire could cause the battery pack to explode.
2. The power supply, FL inverter, and other components carry high voltages. To avoid
the risk of electric shock when you turn on the power of a partially disassembled
computer to check its operation, be very careful not to touch connectors or
components. Also, do not disassemble individual components during first-level
maintenance.
WARNING:
To avoid the risk of electric shock or other injury:
1. Always turn the power off and disconnect the AC power cord from the power source.
2. Remove any metal jewelry or accessories such as necklaces, bracelets, or rings.
Batteries in the computer retain electrical charge so there is danger of electrical
shock even when the computer is disconnected from an AC power source.
3. Never work with wet or damp hands.
4. The computer contains many sharp edges and corners, so be careful not to injure
yourself.
5. Make sure that all replacement components meet the specifications for the computer
and that all cables and connectors are securely fastened.
CAUTION:
To avoid damage to the computer:
1. When you change a component, be sure the replacement component meets the
required specifications. Never use foreign parts.
2. Metal objects such as screws or paper clips which fall into the unit can cause a
short-circuit, fire, or other internal damage.
3. When assembling the computer, make sure you use the correct screws to secure the
various pieces in place. Screw sizes are listed in the corresponding figures. Make
sure all screws are securely fastened. Loose screws can cause short circuits,
resulting in heat, smoke, or fire.
4. Before removing an FRU or other component, make sure all cables to the component
have been disconnected.
5. If you use AC power, be sure to use the cable that came with the computer or one
recommended by Toshiba.
4-2
700 Series