Toshiba 50CT User Guide - Page 37

Troubleshooting Flowchart, Troubleshooting Procedures,

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2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures Figure 2-1 Troubleshooting flowchart (2/2) If the diagnostics program cannot detect an error, the problem may be intermittent. The Running Test program should be executed several times to isolate the problem. Check the Log Utilities function to confirm which diagnostic test detected an error(s), then perform the appropriate troubleshooting procedures as follows: 1. If an error is detected on the system test, memory test, display test, ASYNC test, printer test, expansion test, sound test, or real timer test do the System Board troubleshooting procedures in Section 2.4. 2. If an error is detected on the floppy disk test, do the FDD troubleshooting procedures in Section 2.5. 3. If an error is detected on the hard disk test, do the Hard Disk Drive troubleshooting procedures in Section 2.6. 4. If an error is detected on the keyboard test, do the Keyboard troubleshooting procedures in Section 2.7. 5. If an error is detected on the display test, do the Display troubleshooting procedures in Section 2.9. 2-4 Libretto 50CT/70CT Maintenance Manual

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2.2
Troubleshooting Flowchart
2
Troubleshooting Procedures
2-4
Libretto 50CT/70CT Maintenance Manual
Figure 2-1
Troubleshooting flowchart (2/2)
If the diagnostics program cannot detect an error, the problem may be intermittent.
The
Running Test program should be executed several times to isolate the problem.
Check the Log Utilities function to confirm which diagnostic test detected an error(s), then
perform the appropriate troubleshooting procedures as follows:
1.
If an error is detected on the system test, memory test, display test, ASYNC test,
printer test, expansion test, sound test, or real timer test do the System Board
troubleshooting procedures in Section 2.4.
2.
If an error is detected on the floppy disk test, do the FDD troubleshooting procedures
in Section 2.5.
3.
If an error is detected on the hard disk test, do the Hard Disk Drive troubleshooting
procedures in Section 2.6.
4.
If an error is detected on the keyboard test, do the Keyboard troubleshooting
procedures in Section 2.7.
5.
If an error is detected on the display test, do the Display troubleshooting procedures in
Section 2.9.