Toshiba T2100 Series Maintenance Manual page 30

Procedure 3 AC Power Supply (PS) Unit Replacement Check
The PCB incorporates the system board and the AC PS unit. Power is supplied to the power
supply board through the AC IN plug located on the internal AC adapter. If either the power
supply board or the system board is damaged, replace the AC PS unit.
Refer to Chapter 4 for instructions on how to disassemble the T2100/T2105 Series computer,
and then perform the following check.
Check 1 Replace the AC PS unit with a new one and restart the system. If the problem still
exists, other FRUs may be damaged.
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T2100 Series