Toshiba Satellite C850D - Chapter 2 Troubleshooting

2 Troubleshooting
2-ii Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual
Chapter 2 Contents
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 .................................................................... 2-8
2.4 System Board ......................................................................................................... 2-9
Procedure 1 Message Check ........................................................................... 2-9
Procedure 2 Test Program Check .................................................................. 2-10
Procedure 3 Replacement Check .................................................................. 2-10
2.5 HDD ..................................................................................................................... 2-11
Procedure 1 Message Check ......................................................................... 2-11
Procedure 2 Partition Check ......................................................................... 2-11
Procedure 3 Format Check ............................................................................ 2-12
Procedure 4 Test Program Check .................................................................. 2-13
Procedure 5 Connector Check and Replacement Check............................... 2-14
2.6 Keyboard .............................................................................................................. 2-15
Procedure 1 Test Program Check .................................................................. 2-15
Procedure 2 Connector Check and Replacement Check............................... 2-15
2.7 Display ................................................................................................................. 2-16
Procedure 1 External Monitor Check ........................................................... 2-16
Procedure 2 Test Program Check .................................................................. 2-16
Procedure 3 Connector Check and Replacement Check............................... 2-16
2.8 ODD (Optical Disk Drive) ................................................................................... 2-18
Procedure 1 ODD Cleaning Check ............................................................... 2-18
Procedure 2 Test Program Check .................................................................. 2-18
Procedure 3 Connector Check and Replacement Check............................... 2-18
2.9 LAN ...................................................................................................................... 2-20
Procedure 1 Test Program Check .................................................................. 2-20
Procedure 2 Connector Check and Replacement Check............................... 2-20