Chapter 2 Troubleshooting Procedures
Figure 2-2-1 Troubleshooting flowchart (2/2)
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. Check the Log Utilities
function to confirm which diagnostic test detected an error(s), and then perform the
appropriate troubleshooting procedures as follows:
1. If an error is detected on the system test, memory test, display test, CD-ROM/DVD-
ROM test, expansion test, real timer test, sound test or LAN/Bluetooth test, perform
the System Board Troubleshooting Procedures in Section 2.4.
2. If an error is detected on the hard disk test, perform the HDD/SSD Troubleshooting
Procedures in Section 2.5.
3. If an error is found on the keyboard test (DIAGNOSTICS TEST) and pressed key
display test, perform the Keyboard Troubleshooting Procedures in Section 2.6.
Satellite L600/L640/L645, Satellite Pro L600/Pro L640/Pro L645 Maintenance Manual (960-Q08)
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