Toshiba satellite A20 series Maintenance Manual page 13

Chapter 1
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
1.8.1 LCD Module .......................................................................................1-24
1.8.2 FL Inverter Board ...............................................................................1-25
1.9 Power Supply............................................................................................................1-26
1.10 Batteries....................................................................................................................1-28
1.10.1 Main Battery .......................................................................................1-28
1.10.2 Battery LED (Main Battery) ...............................................................1-28
1.10.3 Battery Charging Control....................................................................1-29
1.10.4 RTC battery.........................................................................................1-30
Satellite A20 Maintenance Manual (960-444)
Contents
1 Hardware Overview
1-iii