Toshiba Online Users Guide for Satellite A20/A25
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... data, please make periodic back-up copies of all set-up and usage instructions in the applicable user guides and/or manuals enclosed. "Critical applications" means life support systems, medical applications, connections to implanted medical devices, commercial transportation, nuclear facilities ... DATA, OR ANY OTHER DAMAGE RESULTING THEREFROM. 2 Model: Satellite® A20/A25 Series ReWritable CD/DVD Drives The computer system you purchased may lose data or suffer other damage. TOSHIBA AMERICA INFORMATION SYSTEMS ("TOSHIBA"), ITS AFFILIATES AND SUPPLIERS DO NOT WARRANT THAT OPERATION OF...
... data, please make periodic back-up copies of all set-up and usage instructions in the applicable user guides and/or manuals enclosed. "Critical applications" means life support systems, medical applications, connections to implanted medical devices, commercial transportation, nuclear facilities ... DATA, OR ANY OTHER DAMAGE RESULTING THEREFROM. 2 Model: Satellite® A20/A25 Series ReWritable CD/DVD Drives The computer system you purchased may lose data or suffer other damage. TOSHIBA AMERICA INFORMATION SYSTEMS ("TOSHIBA"), ITS AFFILIATES AND SUPPLIERS DO NOT WARRANT THAT OPERATION OF...
Maintenance Manual
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... instructions and descriptions it contains are subject to the use of Toshiba. Trademarks Intel, Intel SpeedStep and Pentium are registered trademarks of Intel Corporation or its proprietor and used by Toshiba Corporation. Toshiba Personal Computer Satellite A20 Series Maintenance Manual First edition May 2003 Disclaimer This manual has been validated and reviewed for accuracy. Windows and Microsoft are...
... instructions and descriptions it contains are subject to the use of Toshiba. Trademarks Intel, Intel SpeedStep and Pentium are registered trademarks of Intel Corporation or its proprietor and used by Toshiba Corporation. Toshiba Personal Computer Satellite A20 Series Maintenance Manual First edition May 2003 Disclaimer This manual has been validated and reviewed for accuracy. Windows and Microsoft are...
Maintenance Manual
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... a screw is not fully fastened, it could come loose, creating a danger of a hazard that could cause overheating, smoke or fire. Preface This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer Satellite A20 Series, referred to as shown below. NOTE: "Note" contains general information that could result in this...
... a screw is not fully fastened, it could come loose, creating a danger of a hazard that could cause overheating, smoke or fire. Preface This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer Satellite A20 Series, referred to as shown below. NOTE: "Note" contains general information that could result in this...
Maintenance Manual
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... Handling the LCD module q Board layout q Pin assignments q Keyboard scan/character codes q Key layout q Wiring diagrams q BIOS Rewrite Procedures q Reliability iv Satellite A20 Maintenance Manual (960-444) Chapter 4 Replacement Procedures describes the removal and replacement of the FRUs. Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve FRU problems. ... test and diagnostic operations for maintenance service. Appendices The appendices describe the following parts: Chapter 1 Hardware Overview describes the Satellite A20 Series system unit and each FRU.
... Handling the LCD module q Board layout q Pin assignments q Keyboard scan/character codes q Key layout q Wiring diagrams q BIOS Rewrite Procedures q Reliability iv Satellite A20 Maintenance Manual (960-444) Chapter 4 Replacement Procedures describes the removal and replacement of the FRUs. Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve FRU problems. ... test and diagnostic operations for maintenance service. Appendices The appendices describe the following parts: Chapter 1 Hardware Overview describes the Satellite A20 Series system unit and each FRU.
Maintenance Manual
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... such operations by the key top symbols separated by the computer that you are enclosed in the boldface type below : Format complete System transferred Satellite A20 Maintenance Manual (960-444) v The key top symbol as it appears on its display is printed in the type face below : DISKCOPY A: B: ... at the same time press Pause (Break). User input Text that appears on the keyboard is presented in boldface type. Conventions This manual uses the following their definition. Key operation Some operations require you must hold down Ctrl and at the same time press the third....
... such operations by the key top symbols separated by the computer that you are enclosed in the boldface type below : Format complete System transferred Satellite A20 Maintenance Manual (960-444) v The key top symbol as it appears on its display is printed in the type face below : DISKCOPY A: B: ... at the same time press Pause (Break). User input Text that appears on the keyboard is presented in boldface type. Conventions This manual uses the following their definition. Key operation Some operations require you must hold down Ctrl and at the same time press the third....
Maintenance Manual
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..., 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 Satellite A20 Maintenance Manual (960-444) vii
..., 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 Satellite A20 Maintenance Manual (960-444) vii
Maintenance Manual
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... Test Detail Status 3-54 3.21 Head Cleaning ...3-56 3.22 Log Utilities...3-57 3.23 Running Test ...3-59 3.24 Floppy Disk Drive Utilities 3-61 3.25 System Configuration 3-66 3.26 SETUP...3-68 viii Satellite A20 Maintenance Manual (960-444)
... Test Detail Status 3-54 3.21 Head Cleaning ...3-56 3.22 Log Utilities...3-57 3.23 Running Test ...3-59 3.24 Floppy Disk Drive Utilities 3-61 3.25 System Configuration 3-66 3.26 SETUP...3-68 viii Satellite A20 Maintenance Manual (960-444)
Maintenance Manual
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... 4.24 PC Card Slot...4-63 4.25 Speakers ...4-65 4.26 Touch Pad Switch...4-67 4.27 Display Mask...4-68 4.28 FL Inverter ...4-70 4.29 LCD Module ...4-72 Satellite A20 Maintenance Manual (960-444) ix
... 4.24 PC Card Slot...4-63 4.25 Speakers ...4-65 4.26 Touch Pad Switch...4-67 4.27 Display Mask...4-68 4.28 FL Inverter ...4-70 4.29 LCD Module ...4-72 Satellite A20 Maintenance Manual (960-444) ix
Maintenance Manual
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4.30 Wireless LAN Antenna/Blutooth Antenna/Display Cover 4-76 4.31 Fluorescent Lamp ...4-85 Appendices Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Appendix H Appendix I Handling the LCD Module A-1 Board Layout B-1 Pin Assignments C-1 Keyboard Scan/Character Codes D-1 Key Layout...E-1 Wiring Diagram F-1 BIOS Rewrite Procedures G-1 EC/KBC Rewrite Procedures H-1 Reliability...I-1 x Satellite A20 Maintenance Manual (960-444)
4.30 Wireless LAN Antenna/Blutooth Antenna/Display Cover 4-76 4.31 Fluorescent Lamp ...4-85 Appendices Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Appendix H Appendix I Handling the LCD Module A-1 Board Layout B-1 Pin Assignments C-1 Keyboard Scan/Character Codes D-1 Key Layout...E-1 Wiring Diagram F-1 BIOS Rewrite Procedures G-1 EC/KBC Rewrite Procedures H-1 Reliability...I-1 x Satellite A20 Maintenance Manual (960-444)
Maintenance Manual
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1 Hardware Overview Chapter 1 Contents 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) 1-iii
1 Hardware Overview Chapter 1 Contents 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) 1-iii
Maintenance Manual
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... specifications 1-25 Power supply board output rating 1-27 Battery specifications 1-28 Time required for quick charges 1-29 RTC battery charging/data preservation time 1-30 1-iv Satellite A20 Maintenance Manual (960-444)
... specifications 1-25 Power supply board output rating 1-27 Battery specifications 1-28 Time required for quick charges 1-29 RTC battery charging/data preservation time 1-30 1-iv Satellite A20 Maintenance Manual (960-444)
Maintenance Manual
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1.1 Features 1 Hardware Overview 1 Features 1.1 Features The Toshiba Satellite A20 Personal Computer uses extensive Large Scale Integration (LSI), and Complementary Metal-Oxide Semiconductor (CMOS) technology extensively to best meet the customer's...the following features: q Processor • Intel Desktop Pentium 4 Processor The processor runs at one of 2GB. q HDD Single 30GB, 40GB, 60GB or 80GB internal drive, 2.5- q USB FDD A 3.5-inch USB FDD accommodates both 2HD (1.44MB) and 2DD (720KB) disks. Satellite A20 Maintenance Manual (960-444) 1-1 The computer is built and ...
1.1 Features 1 Hardware Overview 1 Features 1.1 Features The Toshiba Satellite A20 Personal Computer uses extensive Large Scale Integration (LSI), and Complementary Metal-Oxide Semiconductor (CMOS) technology extensively to best meet the customer's...the following features: q Processor • Intel Desktop Pentium 4 Processor The processor runs at one of 2GB. q HDD Single 30GB, 40GB, 60GB or 80GB internal drive, 2.5- q USB FDD A 3.5-inch USB FDD accommodates both 2HD (1.44MB) and 2DD (720KB) disks. Satellite A20 Maintenance Manual (960-444) 1-1 The computer is built and ...
Maintenance Manual
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... CD-R at up to 16 speed, CDRW at up to the fixed CD-RW/DVD-ROM drive on -screen pointer and scrolling of windows. 1-2 Satellite A20 Maintenance Manual (960-444) It writes CD-R at up to 16 speed, CD-RW at up to 10 speed. The keyboard also includes two keys that uses...
... CD-R at up to 16 speed, CDRW at up to the fixed CD-RW/DVD-ROM drive on -screen pointer and scrolling of windows. 1-2 Satellite A20 Maintenance Manual (960-444) It writes CD-R at up to 16 speed, CD-RW at up to 10 speed. The keyboard also includes two keys that uses...
Maintenance Manual
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... or 32MB of SMA VRAM enable an external monitor with LAN circuits that backs up to display 64k colors at a resolution of 1,600 x 1,200 pixels. Satellite A20 Maintenance Manual (960-444) 1-3 q Internal LAN The computer is equipped with an RGB cable to 127 USB-equipped devices and 480Mbps serial data transfer. q Slot for...
... or 32MB of SMA VRAM enable an external monitor with LAN circuits that backs up to display 64k colors at a resolution of 1,600 x 1,200 pixels. Satellite A20 Maintenance Manual (960-444) 1-3 q Internal LAN The computer is equipped with an RGB cable to 127 USB-equipped devices and 480Mbps serial data transfer. q Slot for...
Maintenance Manual
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... Sequence Spread Spectrum radio technology that complies with the IEEE 802.11b or a/b. It supports data transfer up to external devices such as a TV. 1-4 Satellite A20 Maintenance Manual (960-444) The sound system is equipped with an SD Card slot that can accommodate Secure Digital flash memory cards with capacities of 8MB, 16MB...
... Sequence Spread Spectrum radio technology that complies with the IEEE 802.11b or a/b. It supports data transfer up to external devices such as a TV. 1-4 Satellite A20 Maintenance Manual (960-444) The sound system is equipped with an SD Card slot that can accommodate Secure Digital flash memory cards with capacities of 8MB, 16MB...
Maintenance Manual
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...,000bps and for data transmission it operates at 33,600bps. In the U.S. For fax transmission it operates at 14,400bps. The speed of the computer Satellite A20 Maintenance Manual (960-444) 1-5 The system unit configuration is shown in figure 1-2. Figure 1-1 Front of data transfer and fax depends on analog telephone line conditions. The...
...,000bps and for data transmission it operates at 33,600bps. In the U.S. For fax transmission it operates at 14,400bps. The speed of the computer Satellite A20 Maintenance Manual (960-444) 1-5 The system unit configuration is shown in figure 1-2. Figure 1-1 Front of data transfer and fax depends on analog telephone line conditions. The...
Maintenance Manual
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1.2 System Unit Block Diagram 1.2 System Unit Block Diagram Figure 1-3 is the block diagram of the system unit. 1 Hardware Overview Figure 1-3 System unit block diagram Satellite A20 Maintenance Manual (960-444) 1-7
1.2 System Unit Block Diagram 1.2 System Unit Block Diagram Figure 1-3 is the block diagram of the system unit. 1 Hardware Overview Figure 1-3 System unit block diagram Satellite A20 Maintenance Manual (960-444) 1-7
Maintenance Manual
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... 1.525V - Integrated L1 cache memory: 12KB instruction cache and 8KB write-back data cache, 4-way set associative - Integrated NDP Intel Desktop Pentium 4 Processor 2.8GHz - Processor bus speed: 533MHz - Integrated NDP 1-8 Satellite A20 Maintenance Manual (960-444) Integrated L2 cache memory: 512KB ECC protected cache data array, 8- way set associative - Processor bus speed: 533MHz - Processor...
... 1.525V - Integrated L1 cache memory: 12KB instruction cache and 8KB write-back data cache, 4-way set associative - Integrated NDP Intel Desktop Pentium 4 Processor 2.8GHz - Processor bus speed: 533MHz - Integrated NDP 1-8 Satellite A20 Maintenance Manual (960-444) Integrated L2 cache memory: 512KB ECC protected cache data array, 8- way set associative - Processor bus speed: 533MHz - Processor...
Maintenance Manual
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... 64, 128, 256, 512Mbit SDRAM / DDR - Dynamic switching CKE algorithm - Internal clock gating on each functional block - Supports Intel Pentium 4 microprocessor family with per byte access on each row - Supports memory shadowing - Supports DDR up to -back read /write - Supports...hit - Supports SDR DRAM PC-100, PC-133 - ACPI and DPMS support High Performance DirectX 7.0 3D Engine DVD Playback Satellite A20 Maintenance Manual (960-444) 1-9 Supports synchronous / pseudo asynchronous clock mode between processor and memory interface with Integrated Graphic Chip ALi PCI ...
... 64, 128, 256, 512Mbit SDRAM / DDR - Dynamic switching CKE algorithm - Internal clock gating on each functional block - Supports Intel Pentium 4 microprocessor family with per byte access on each row - Supports memory shadowing - Supports DDR up to -back read /write - Supports...hit - Supports SDR DRAM PC-100, PC-133 - ACPI and DPMS support High Performance DirectX 7.0 3D Engine DVD Playback Satellite A20 Maintenance Manual (960-444) 1-9 Supports synchronous / pseudo asynchronous clock mode between processor and memory interface with Integrated Graphic Chip ALi PCI ...