2
Troubleshooting Procedures
Satellite A40 Maintenance Manual (960-458)
2-iii
Chapter 2
Contents
2.1
Troubleshooting
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2-1
2.2
Troubleshooting Flowchart
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2-2
2.3
Power Supply Troubleshooting
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2-6
Procedure 1
Icon Check
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2-6
Procedure 2
Error Code Check
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2-8
Procedure 3
Connection Check
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2-15
Procedure 4
Charge Check
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2-16
Procedure 5
Replacement Check
....................................................................
2-17
2.4
System Board Troubleshooting
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2-18
Procedure 1
Message Check
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2-19
Procedure 2
Printer Port LED Check
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2-21
Procedure 3
Diagnostic Test Program Execution Check
...................................
2-32
Procedure 4
Replacement Check
....................................................................
2-33
2.5
FDD Troubleshooting
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2-34
Procedure 1
FDD Head Cleaning Check
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2-34
Procedure 2
Diagnostic Test Program Execution Check
...................................
2-35
Procedure 3
Connector Check and Replacement Check
..................................
2-36
2.6
HDD Troubleshooting
................................................................................................
2-37
Procedure 1
Message Check
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2-37
Procedure 2
Partition Check
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2-38
Procedure 3
Format Check
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2-39
Procedure 4
Diagnostic Test Program Execution Check
...................................
2-40
Procedure 5
Connector Check and Replacement Check
..................................
2-41
2.7
Keyboard Troubleshooting
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2-42
Procedure 1
Diagnostic Test Program Execution Check
...................................
2-42
Procedure 2
Connector and Replacement Check
.............................................
2-43