Toshiba Satellite X200; Satellite X205 Maintenance Manual page 81

2 Troubleshooting Procedures
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The Robson board or system board may be the reason of a Robson fault. Either of these two
components may be damaged. To determine if the computer's Robson is functioning
properly, perform the following procedures. Figure 2-14 outlines the process. Start with
Procedure 1 and continue with the other procedures as instructed.
Procedure 1: Diagnostic test
Procedure 2: Connector and replacement check
Procedure 1 Diagnostic test
Run the functioning Program on DOS model, which will display the Robson test result.
If tests and diagnostics result abnormal go to Procedure 2. If an error is not located, the
Robson board is functioning properly.
Procedure 2 Connector and replacement check
The Robson board or system board may be disconnected or damaged. Disassemble the
computer following the steps described in Chapter 4, Replacement Procedures, and perform
the following checks.
Check 1 Make sure that the Robson board is securely slotted into the system board. If the
problem remains, go to Check 2.
Check 2 The Robson board may be damaged. Replace it with a new one following the
instructions in Chapter 4. If the problem still exists, perform Check 3.
Check 3 The system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.
Satellite x200/x205/satellite Pro x200 /
EQUIUM X200 /SATEGO X200 Series
Maintenance Manual
51