2 Troubleshooting
Satellite R20/TECRA M7 Maintenance Manual (960-572) [CONFIDENTIAL] 2-iii
Chapter 2 Contents 2.1 Troubleshooting......................................................................................................... 2-1
2.2 Troubleshooting Flowchart........................................................................................ 2-2
2.3 Power Supply Troubleshooting..................................................................................2-6
Procedure 1 Power Supply Icon Check......................................................2-7
Procedure 2 Error Code Check ..................................................................2-9
Procedure 3 Connection Check................................................................ 2-14
Procedure 4 Quick Charge Check............................................................ 2-15
Procedure 5 Replacement Check .............................................................2-15
2.4 System Board Troubleshooting................................................................................2-16
Procedure 1 Message Check.................................................................... 2-17
Procedure 2 Debug Port (D port) Check on Boot Mode.......................... 2-19
Procedure 3 Diagnostic Test Program Execution Check......................... 2-31
Procedure 4 Replacement Check .............................................................2-31
2.5 USB 3.5” FDD Troubleshooting..............................................................................2-32
Procedure 1 FDD Head Cleaning Check .................................................2-32
Procedure 2 Diagnostic Test Program Execution Check......................... 2-33
Procedure 3 Connector Check..................................................................2-34
Procedure 4 Replacement Check .............................................................2-34
2.6 2.5” HDD Troubleshooting......................................................................................2-35
Procedure 1 Partition Check.....................................................................2-35
Procedure 2 Message Check.................................................................... 2-36
Procedure 3 Format Check....................................................................... 2-37
Procedure 4 Diagnostic Test Program Execution Check......................... 2-38
Procedure 5 Connector Check and Replacement Check.......................... 2-39
2.7 Keyboard Troubleshooting...................................................................................... 2-40
Procedure 1 Diagnostic Test Program Execution Check......................... 2-40
Procedure 2 Connector Check and Replacement Check.......................... 2-40