Toshiba portege 610ct 620ct Instruction De Maintenance
620 Maintenance Manual Addendum
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About this Addendum
This addendum is a supplement to the Toshiba 610CT Maintenance Manual. The information
contained in this publication covers features, field replaceable units, and disassembly/
reassembly of the Toshiba 620CT computer. For information on troubleshooting, tests and
diagnostics, board layout, pin assignments, etc., please refer to the 610CT Maintenance
Manual.
contained in this publication covers features, field replaceable units, and disassembly/
reassembly of the Toshiba 620CT computer. For information on troubleshooting, tests and
diagnostics, board layout, pin assignments, etc., please refer to the 610CT Maintenance
Manual.
SAFETY PRECAUTIONS
Four types of messages are used in this manual to bring important
information to your attention. Each of these messages will be italicized
and identified as shown below.
information to your attention. Each of these messages will be italicized
and identified as shown below.
DANGER: "Danger" indicates the existence of a hazard that could result in death
or serious bodily injury if the safety instruction is not observed.
or serious bodily injury if the safety instruction is not observed.
WARNING: "Warning" indicates the existence of a hazard that could result in
bodily injury if the safety instruction is not observed.
bodily injury if the safety instruction is not observed.
CAUTION: "Caution" indicates the existence of a hazard that could result in
property damage if the safety instruction is not observed.
property damage if the safety instruction is not observed.
NOTE: A "Note" contains general information that relates to safe maintenance
services.
services.
Improper repair of the computer may result in safety hazards. Toshiba
requires service technicians and authorized dealers or service providers
to ensure the following safety precautions are strictly adhered to.
requires service technicians and authorized dealers or service providers
to ensure the following safety precautions are strictly adhered to.
❑ Be sure to fasten screws securely with the right screwdriver. If a
screw is not fully fastened, it could come loose, creating a danger
of a short circuit, which could cause overheating, smoke or fire.
of a short circuit, which could cause overheating, smoke or fire.
❑ If you replace the battery pack, RTC battery or backup battery, be
sure to use only the same model battery or an equivalent battery
recommended by Toshiba. Installation of the wrong battery can
cause the battery to explode.
recommended by Toshiba. Installation of the wrong battery can
cause the battery to explode.