Toshiba Satellite M40 Maintenance Manual page 38

2.3 Power Supply Troubleshooting
If the diagnostics program cannot detect an error, the problem may be intermittent. The test
program should be executed several times to isolate the problem. When a problem has been
located, perform the appropriate troubleshooting procedures as follows:
1. If an error is detected by the battery test, perform the Power Supply Troubleshooting
procedures in Section 2.3.
2. If an error is detected by the display test, perform the Display Troubleshooting procedures
in Section 2.4.
3. If an error is detected by the keyboard test, perform the Keyboard Troubleshooting
procedures in Section 2.5.
4. If an error is detected by the printer (parallel) port test, perform the Printer Port
Troubleshooting procedures in Section 2.8.
5. If an error is detected by the TouchPad test, perform the TouchPad Troubleshooting
procedures in Section 2.9.
6. If an error is detected by the audio test, perform the Speaker Troubleshooting procedures
in Section 2.10 and the Optical Drive Troubleshooting Procedures in Section 2.12.
7. If an error is detected by the modem test, perform the Modem Troubleshooting
Procedures in Section 2.12.
Satellite M40X/M45X/Satellite Pro M40X/EQUIUM M40X Series Maintenance Manual
2 Troubleshooting Procedures
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