Toshiba Satellite M20 Maintenance Manual page 36

2 Troubleshooting
Chapter 2
2.1 Outline........................................................................................................................ 2-1
2.2 Basic Flowchart ......................................................................................................... 2-2
2.3 Power Supply ............................................................................................................. 2-6
Procedure 1 Power Icon Check........................................................................... 2-6
Procedure 2 Connection Check........................................................................... 2-8
Procedure 3 Replacement Check ........................................................................ 2-9
2.4 System Board ........................................................................................................... 2-10
Procedure 1 Message Check ........................................................................... 2-11
Procedure 2 Printer Port LED Check (in Boot Mode).................................... 2-12
Procedure 3 Printer Port LED Check (in Resume Mode)............................... 2-17
Procedure 4 Test Program Check ................................................................... 2-18
Procedure 5 Replacement Check ..................................................................... 2-18
2.5 2.5-inch HDD........................................................................................................... 2-19
Procedure 1 Message Check ............................................................................. 2-19
Procedure 2
Procedure 3 Format Check.............................................................................. 2-20
Procedure 4 Test Program Check ................................................................... 2-21
Procedure 5 Connector Check and Replacement Check................................. 2-22
2.6 Keyboard.................................................................................................................. 2-23
Procedure 1 External Keyboard Check........................................................... 2-23
Procedure 2 Test Program Check ................................................................... 2-23
Procedure 3 Connector Check and Replacement Check................................. 2-23
2.7 Display ..................................................................................................................... 2-25
Procedure 1 External Monitor Check ............................................................. 2-25
Procedure 2 Test Program Check ................................................................... 2-25
Procedure 3 Connector Check and Replacement Check................................. 2-25
2.8 DVD-ROM Drive .................................................................................................... 2-27
Procedure 1 DVD-ROM Cleaning Check....................................................... 2-27
Procedure 2 Test Program Check ................................................................... 2-27
Procedure 3 Connector Check and Replacement Check................................. 2-27
2-ii
Contents
Partition Check .......................................................................... 2-19
Satellite M20 Maintenance Manual