Toshiba T200 User Manual page 29

Procedure 3 PCB Replacement Check
The power supply is mounted on the upper system board. The upper system board may be
damaged. Disassemble the computer following the steps described in Chapter 4, Replacement
Procedures, then perform the following checks.
Check 1 Replace the upper system board with a new one and restart the system. If the
problem still exists, go to Check 2.
Check 2 Replace the lower system board with a new one and restart the system. If the
problem persists, other FRUs may be damaged.
T200/T200CS
2-9