Toshiba satellite a20 series Personal Computer User Manual


 
Satellite A20 Maintenance Manual (960-444) vii
Table of Contents
Chapter 1 Hardware Overview
1.1 Features......................................................................................................................1-1
1.2 System Unit Block Diagram ......................................................................................1-7
1.3 2.5-inch Hard Disk Drive.........................................................................................1-14
1.4 CD-RW/DVD Drive ................................................................................................1-16
1.5 DVD-R/-RW Drive..................................................................................................1-19
1.6 DVD Multi Drive.....................................................................................................1-20
1.7 Keyboard..................................................................................................................1-23
1.8 TFT Color Display...................................................................................................1-24
1.9 Power Supply...........................................................................................................1-26
1.10 Batteries ...................................................................................................................1-28
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting ......................................................................................................... 2-1
2.2 Troubleshooting Flowchart........................................................................................2-3
2.3 Power Supply Troubleshooting.................................................................................. 2-7
2.4 System Board Troubleshooting................................................................................ 2-19
2.5 FDD Troubleshooting .............................................................................................. 2-33
2.6 HDD Troubleshooting ............................................................................................. 2-36
2.7 Keyboard Troubleshooting ......................................................................................2-41
2.8 Display Troubleshooting.......................................................................................... 2-44
2.9 CD-RW/DVD, DVD-ROM, DVD-R/-RW
and DVD Multi Drive Troubleshooting................................................................... 2-46
2.10 Modem Troubleshooting.......................................................................................... 2-48
2.11 LAN Troubleshooting.............................................................................................. 2-50
2.12 Wireless LAN Troubleshooting............................................................................... 2-52
2.13 Sound Troubleshooting............................................................................................2-56
2.14 SD Card Troubleshooting ........................................................................................ 2-59