Toshiba PORTEGE M400 User Manual
Page 45
2 Troubleshooting
PORTEGE M400 Maintenance Manual (960-541)
[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 ............................................................ 2-14
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 and 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