Toshiba Satellite A20 Series - Table of Contents

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