Toshiba portege 610ct 620ct Instruction De Maintenance
610CT
4-1
4.1
General
This section explains how to disassemble the 610CT and replace Field Replaceable Units
(FRUs). It may not be necessary to remove all the FRUs in order to replace one. The chart
below is a guide to which FRUs need to be removed in order to remove others. Always start
by removing the battery pack, then follow the lines on the chart to determine which FRU you
must remove next in order to repair the one you think is causing the 610CT to operate im-
properly.
(FRUs). It may not be necessary to remove all the FRUs in order to replace one. The chart
below is a guide to which FRUs need to be removed in order to remove others. Always start
by removing the battery pack, then follow the lines on the chart to determine which FRU you
must remove next in order to repair the one you think is causing the 610CT to operate im-
properly.
❏ Battery Pack
❏
Optional Memory Card
❏
Optional PCMCIA Card
Display
❏ FL inverter Board
❏
Keyboard
Mask
❏ TFT Color Display
❏
Hard Disk Drive
❏ FL Unit
❏
Top Cover
LED Board
❏ Microphone
❏
RTC and Backup Battery
and Speaker
❏
Accupoint Control Button Contact
❏
Sound Board
❏
Power Supply Board
❏
System Board
❏
Fan
Safety precautions
Before you begin disassembly, read the following safety precautions and observe them care-
fully as you work.
fully as you work.
DANGER: 1. Always use the lithium ion battery pack or the back-up battery autho-
rized by Toshiba to be compatible with the unit. Since other battery packs
have different specifications, they may be incompatible with the unit and
may burst or explode.
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.
pack to explode.
2. The power supply, FL inverter, and other components carry high
voltages. If you turn on the power of a partially disassembled computer to
check its operation, be very careful not to touch connectors or compo-
nents. This will reduce the risk of accidental electrical shock. Also, do not
disassemble individual components during first-level maintenance.
check its operation, be very careful not to touch connectors or compo-
nents. This will reduce the risk of accidental electrical shock. Also, do not
disassemble individual components during first-level maintenance.