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660
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Schematic Diagrams
A-1
A
Schematic Diagrams
A.1 Introduction
This section contains schematic diagrams for the Extensa 660 Notebook Computer.
Contents
Main
Page
Preface
Introduction
Intended Audience
Contents
Page
Contents
Preface
Section 1 General Description
Section 2 Installation
Section 2 Installation (continued)
Section 3 Operating Instructions
Section 4 Theory of Operation
Section 5 Troubleshooting Procedures
Section 6 Field Service
Section 6 Field Service (continued)
Appendix A Schematic Diagrams
1 General Description
1.1 Introduction
1.2 Product Overview
1.3 Extensa 660 Series Notebook Features
Page
Figure 1-2 660 Series Notebook External Features
1.3.1 V ideo Display Features
Bottom of Notebook
Left Side of Notebook
Page
1.3.2 Keyboard Features
1.3.3 Software Features
1.3.4 Standard Peripheral Devices
1.3.5 660 Series Connectivity Features
1.3.6 Expansion Capabilities
1.3.7 Advanced PCI Card Options
Bottom of Notebook
1.3.8 PCMCIA Card Options
1.4 Notebook Batteries
1.4.1 Deter mining Battery Charge Level
Charge Indicators
Charge Display Button
1.5 Standard Test Features
1.5.1 Power On Self Test
1.5.2 PC-Doctor Diagnostics Program
Page
1.6 Extensa 660 Series Specifications
1-16 General Description
Built-in Mouse Device
Video Subsystem
LCD Aspect Ratio
Video Memory Size
RS-232-D Serial Port:
Transfer Data Rate
Connector Type
Method:
16550 UART Support Selectable Serial Port (BIOS Setup)
1.7 Regulatory Agency Approvals
2 Installation
2.1 Introduction
2.2 Unpacking Instructions
2.3 Installing Internal Notebook Options
2.3.1 Installing Main Memory Expansion (Optional)
2.3.2 Setting up the Software
2.3.3 Installing Advanced PCI Option Card
2.3.4 Installing PCMCIA Options
Bottom of Notebook
Page
2.4 Installing External Notebook Options
2.4.1 Installing Ext. Keyboard/Mouse/Numeric Keypad
2-8 Installation
2.4.2 Installing an Exter nal Parallel Printer
PIN
Note:
Figure 2-5 Parallel Port Pinouts
PARALLEL PORT PINOUTS
2.4.3 Installing an Exter nal Serial Port Device
2.4.4 Installing an Exter nal VGA Monitor
2.5 Battery Pack Installation
2.6 Installing the AC Power Adapter
2.7 Initial Software Load
2.8 Backing Up System Files
2.9 Demo Program
2.9.1 Stopping the Demo Program
2.9.2 Running the Demo Again
2.10 Initial System Checkout
Page
3 Operating Instructions
3.1 Introduction
3.2 Controls/Indicators
3.2.1 Power On/Of f Switch
3.2.2 Notebook LEDs
3.2.3 LED Icons
3.2.4 Keyboard Hot Key Sequences
Using the Internal Numeric Keypad
A
Table 3-2 Summary of Notebook Hot Key Sequences
Function Key Sequence
3.2.4.1 Windows 95 Special Keys
3.2.4.2 DOS Special Keys
3.3 Configuring the Glidepad
3.4 Using a CD-ROM Drive
3.4.1 Auto Speed/Max Speed Settings
3.4.2 Inserting a CD into the Drive
3.4.3 Handling CDs
3.5 Built-in Sound System
3.6 Using Remote Connections
3.6.1 Using the Fast Infrared (FIR) Port
3.6.2 Using Zoomed V ideo Features
3.6.3 MPEG PC Card
3.7 Battery Saving Tips
3.7.1 Lowering Inactivity T imeouts
3.7.2 Suspending Operation While Idle
3.7.3 Responding to a Low Battery Condition
3.7.4 Replacing the battery
3.7.5 Saving to Disk
4 Theory of Operation
4.1 Introduction
4.2 Notebook Functional Overview
4-2 Theory of Operation
Figure 4-1 Extensa Functional Block Diagram
4.2.1 System Processor
4.2.2 Memory Subsystem
4.2.2.1 Main Memory
4.2.2.2 Flash ROM
Page
4.2.4 V ideo Subsystem
4.2.5 Sound Subsystem
4.2.6 Keyboard Subsystem
4.2.7 Hard Disk Drive Subsystem
4.2.7.1 Hard Disk Drive Power Management
4.2.8 Floppy Disk Drive Subsystem
4.2.9 Power Subsystem
Page
5 Troubleshooting Procedures
5.1 Introduction
5.2 Overview of Fault Isolation Process
5-2 Troubleshooting Procedures
Figure 5-1 Notebook Computer Troubleshooting Flow Chart
SEE PARAGRAPHS 5.3.3.1 and 5.3 .3.2
Press Power button; Selftest automatically runs when power turned on.
5.3 Troubleshooting Procedures
5.3.1 T roubleshooting a Power Supply Problem
5.3.2 T roubleshooting a Display Problem
Page
5.3.3 Fault Isolation Using Power On Self Test
5.3.3.1 POST Error Messages
5-6 Troubleshooting Procedures
Table 5-2 Power On Self Test Error Messages
Message Possible Cause Action
Table 5-2 POST Error Messages (continued)
Message Possible Cause Action
5-8 Troubleshooting Procedures
5.3.3.2 POST Beep Error Messages
Table 5-2 POST Erro r Messages (conti nued)
hex-value
Message Possible Cause Action
hex- value
Beep Code Port 80h Description
5-10 Troubleshooting Procedures
Table 5-3 Self Test Beep Messages
Beep Code Port 80h Description
5.3.4 Run T ime Error Messages
xxxxh
interrupt at address
address
5.3.5 PCMCIA Modem Problems
5.4 General Fault Isolation Procedures
Table 5-5 General Troubleshooting Procedures
5-14 Troubleshooting Procedures
Table 5-5 General Troubleshooting Procedures (continued)
5.5 Fault Isolation Using Diagnostics
5.5.1 PC-Doctor (In DOS Mode or DOS W indows)
5.5.2 Supporting Online Documentation
5.5.3 User Inter face to PC-Doctor
5.5.4 Quitting PC-Doctor
5.6 Board Level Troubleshooting Procedures
5-18 Troubleshooting Procedures
Figure 5-2 System Fails to Boot, Initial Checks
System Fails to Boot: Initial Tests
Memory Interface Tests
Figure 5-3 Memory Interface Troubleshooting Diagram
END
5-20 Troubleshooting Procedures
Figure 5-4 CRT Interface Troubleshooting Diagram
3System Fails to Boot: CRT Interface Checks
Figure 5-5 FDD Interface Troubleshooting Diagram
4
No
END
System Fails to Boot: FDD Interface Check
HDD Interface Checks
5-22 Troubleshooting Procedures
Figure 5-6 HDD Interface Troubleshooting Diagram
Figure 5-7 Keyboard Interface Troubleshooting Diagram
System fils to boot: Keyboard Interface Checks
CD-ROM Interface Checks
5-24 Troubleshooting Procedures
Figure 5-8 CD-ROM Interface Troubleshooting Diagram
System Fails to Boot: Glide Pad Interface Checks
8
END
Check CN21 Pin3
5-26 Troubleshooting Procedures
System Fails to Boot: DC/DC Converter Interface Checks
Figure 5-11 Battery Charger Interface Troubleshooting Diagram
System Fails to Boot: Battery Charger Interface Checks
10
END
END
5-28 Troubleshooting Procedures
11 LED Indicator Function Troubleshooting
Figure 5-13 Serial Port Function Troubleshooting Diagram
Check Transmitting
END
System Boots: Serial Port Checks
Suspend Function Troubleshooting
5-30 Troubleshooting Procedures
Figure 5-14 Suspend Function Troubleshooting Diagram
13
END
System Boots: Cover Switch Function Checks
Check COVSW#:
System Boots: Cover Close Function Checks
END
5-32 Troubleshooting Procedures
System Boots: External Keyboard Checks
System Boots: PS/2 External Mouse Interface Check
Figure 5-19 Printer Port Interface Troubleshooting Diagram
END
System Boots: Printer Port Interface Checks
Page
6 Field Service
6.1 Introduction
6.2 Preventive Maintenance
6.2.1 Cleaning the Computer
6.2.2 Handling the Computer
6.2.3 Handling the Computer Battery Pack
6.2.4 Password Caution
6.3 Required Tools and Equipment
6.4 Notebook FRUs
6.4.1 Cover-Display Assembly
6.4.2 System Base Assembly
Page
Field Service 6-7
Table 6-2 System Base Assembly FRU Listing
Base Assembly FRU Description Assembly/ Disassembly Paragraph
TI Part No.
6-8 Field Service
Table 6-3 Customer-Replaceable Units (CRUs)
Table 6-2 System Base Assembly FRU Listing
6.5 FRU Removal/Replacement Procedures
6.5.1 Removing/Replacing the Primary Battery Pack
6.5.2 Removing/Replacing a Media Bay Device
Page
6.5.3 Removing/Replacing PCMCIA Options
6.5.4 Removing/Replacing the APCI Card Option
Bottom of Notebook
6.5.5 Removing/Replacing the Hard Disk Drive Assembly
6.5.6 Removing/Replacing the Keyboard Assembly
6.5.7 Removing/Replacing the Heat Sink Assembly
6.5.8 Removing/Replacing the CPU PWB Assembly
6.5.9 Removing/Replacing the Display Assembly
6.5.10 Removing/Replacing the Top Cover Assembly
Page
6.5.12 Removing/Replacing the Glidepad Assembly
Page
6.5.14 Removing/Replacing the Audio PWB Assembly
6.5.15 Removing/Replacing the Main PWB Assembly
6.5.16 Removing/Replacing the Battery/HDD Transfer PWB Assembly
Battery/HDD Board
6.5.17 Removing/Replacing the Display FRUs
