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Chapter 1 Contents

1.1 Features...................................................................................................................... 1-1

1.2 System Block Diagram .............................................................................................. 1-5

1.3 2.5-inch Hard Disk Drive......................................................................................... 1-10

1.4 Optical Drive............................................................................................................ 1-15

1.4.1 DVD Super Multi Drive (supporting Double-Layer)......................... 1-12

1.5 Keyboard.................................................................................................................. 1-14

1.6 TFT Color Display................................................................................................... 1-15

1.6.1 LCD Module ...................................................................................... 1-15

1.6.2 FL Inverter Board............................................................................... 1-16

1.7 Power Supply........................................................................................................... 1-17

1.8 Batteries ................................................................................................................... 1-20

1.8.1 Main Battery....................................................................................... 1-20

1.8.2 Battery Charging Control ................................................................... 1-21

1.8.3 RTC battery ........................................................................................ 1-22

1.9 AC Adapter .............................................................................................................. 1-23

QOSMIO G20 Maintenance Manual (960-511) [CONFIDENTIAL] 1-iii

Toshiba Qosmio G20 User Manual

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