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2 Troubleshooting Procedures
[CONFIDENTIAL]
Satellite L670/L675/ProL670 Series Maintenance Man
ual
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 Touchpad test, perform the Touchpad Troubleshooting
Procedures in Section 2.7
5. If an error is detected by the audio test, perform the Speaker Troubleshooting
procedures in Section 2.8 and the Optical Drive Troubleshooting Procedures in
Section 2.9
6. If an error is detected by the HDD test, perform the HDD Troubleshooting Procedures
in Section 2.15