Acer 670 Chapter 3 Operating Instructions, Chapter 4 Theory of Operation

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2.5.3 Installing an External Serial Port Device.........................................................2-7
2.5.4 Installing an External VGA Monitor.................................................................2-8
2.5.5 Installing the Security Lock Option..................................................................2-9
2.6. Battery Pack Installation............................................................................................2-10
2.7. Installing the AC Power Adapter................................................................................2-11
2.8. Initial System Checkout.............................................................................................2-12
2.9. Making Backups of System Software.......................................................................2-12
Chapter 3 Operating Instructions
3.1. Introduction..................................................................................................................3-1
3.2. Controls/Indicators.......................................................................................................3-1
3.2.1 Power On/Off Switch ......................................................................................3-1
3.2.2 Notebook LEDs...............................................................................................3-1
Chapter 4 Theory of Operation
4.1. Introduction..................................................................................................................4-1
4.2. Notebook Functional Overview....................................................................................4-1
4.2.1 System Processor...........................................................................................4-1
4.2.2 Memory Subsystem........................................................................................4-2
4.2.3 Video Subsystem............................................................................................4-2
4.2.4 Sound Subsystem...........................................................................................4-2
4.2.5 Keyboard Subsystem......................................................................................4-3
4.2.6 Hard Disk Drive Subsystem............................................................................4-3
4.2.7 Floppy Disk Drive Subsystem.........................................................................4-3
4.2.8 Power Subsystem...........................................................................................4-3
4.3. Detailed Circuit Theory................................................................................................4-4
4.3.1 Major Components......................................................................................... 4-4
4.3.2 System Architecture........................................................................................4-5
4.3.3 ALI M1521 (PCI, Cache and Memory Controller)...........................................4-6