Toshiba Satellite A40 Maintenance Manual page 56

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