Loading...Toshiba Personal Computer
Satellite A70
Maintenance Manual
TOSHIBA CORPORATION
Copyright
© 2004 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual cannot be reproduced in any form without the prior written permission of Toshiba. No patent liability is assumed with respect to the use of the information contained herein.
Toshiba Personal Computer Satellite SATELLITE A70 Maintenance Manual
First edition September 2004
Disclaimer
The information presented in this manual has been reviewed and validated for accuracy. The included set of instructions and descriptions are accurate for the A70 Series at the time of this manual's production. However, succeeding computers and manuals are subject to change without notice. Therefore, Toshiba assumes no liability for damages incurred directly or indirectly from errors, omissions, or discrepancies between any succeeding product and this manual.
Trademarks
IBM is a registered trademark, and OS/2 and PS/2 are trademarks of IBM Corporation. Microsoft, MS-DOS, Windows, DirectSound and DirectMusic are registered trademarks of Microsoft Corporation.
Intel and Pentium are registered trademarks, and SpeedStep is a trademark of Intel Corporation. Sound Blaster is a registered trademark of Creative Technology Ltd.
Centronics is a registered trademark of Centronics Data Computer Corporation. Photo CD is a trademark of Eastman Kodak.
All other properties are trademarks or registered trademarks of their respective holders.
ii |
Satellite A70 Maintenance Manual |
Preface
This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer Satellite SATELLITE A70/A75, referred to as the A70 Series in this manual.
The procedures described in this manual are intended to help service technicians isolate faulty Field Replaceable Units (FRUs) and replace them in the field.
SAFETY PRECAUTIONS
Four types of messages are used in this manual to bring important information to your attention. Each of these messages will be italicized and identified as shown below.
DANGER: “Danger” indicates the existence of a hazard that could result in death or serious bodily injury if the safety instruction is not observed.
WARNING: “Warning” indicates the existence of a hazard that could result in bodily injury if the safety instruction is not observed.
CAUTION: “Caution” indicates the existence of a hazard that could result in property damage if the safety instruction is not observed.
NOTE: “Note” contains general information that relates to your safe maintenance service.
Improper repair of the computer may result in safety hazards. Toshiba requires service technicians and authorized dealers or service providers to ensure the following safety precautions are adhered to strictly.
Be sure to fasten screws securely with the right screwdriver. If a screw is not fully fastened, it could come loose, creating a danger of a short circuit, which could cause overheating, smoke or fire.
If you replace the battery pack or RTC battery, be sure to use only the same model battery or an equivalent battery recommended by Toshiba. Installation of the wrong battery can cause the battery to explode.
Satellite A70 Maintenance Manual |
iii |
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the A70 Series system unit and each FRU.
Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve FRU problems.
Chapter 3 Test and Diagnostics describes how to perform test and diagnostic operations for maintenance service.
Chapter 4 Replacement Procedures describes the removal and replacement of the FRUs.
Appendices The appendices describe the following:
Handling the LCD module
Board layout
Pin assignments
Keyboard scan/character codes
Key layout
Screw torque list
Reliability
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Satellite A70 Maintenance Manual |
Conventions
This manual uses the following formats to describe, identify, and highlight terms and operating procedures.
Acronyms
On the first appearance and whenever necessary for clarification acronyms are enclosed in parentheses following their definition. For example:
Read Only Memory (ROM)
Keys
Keys are used in the text to describe many operations. The key top symbol as it appears on the keyboard is printed in boldface type.
Key operation
Some operations require you to simultaneously use two or more keys. We identify such operations by the key top symbols separated by a plus (+) sign. For example, Ctrl + Pause (Break) means you must hold down Ctrl and at the same time press Pause (Break). If three keys are used, hold down the first two and at the same time press the third.
User input
Text that you are instructed to type in is shown in the boldface type below:
DISKCOPY A: B:
The display
Text generated by the computer that appears on its display is presented in the type face below:
Format complete
System transferred
Satellite A70 Maintenance Manual |
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Satellite A70 Maintenance Manual |
Table of Contents
Chapter 1 Hardware Overview |
|
|
1.1 |
Features............................................................................................................................ |
1-1 |
1.2 |
System Unit...................................................................................................................... |
1-5 |
1.3 |
2.5-inch Hard Disk Drive................................................................................................. |
1-9 |
1.4 |
Removable Drives.......................................................................................................... |
1-10 |
1.5 |
Power Supply................................................................................................................. |
1-16 |
1.6 |
Batteries ......................................................................................................................... |
1-18 |
Chapter 2 Troubleshooting Procedures |
|
|
2.1 |
Troubleshooting Introduction .......................................................................................... |
2-1 |
2.2 |
Troubleshooting Flowchart.............................................................................................. |
2-2 |
2.3 |
Power Supply Troubleshooting ....................................................................................... |
2-7 |
2.4 |
Display Troubleshooting................................................................................................ |
2-12 |
2.5 |
Keyboard Troubleshooting ............................................................................................ |
2-15 |
2.6 |
External USB Devices Troubleshooting........................................................................ |
2-17 |
2.7 |
TV-Out Failure Troubleshooting ................................................................................... |
2-19 |
2.8 |
Printer Port Troubleshooting ......................................................................................... |
2-21 |
2.9 |
TouchPad Troubleshooting............................................................................................ |
2-23 |
2.10 |
Speaker Troubleshooting ............................................................................................... |
2-25 |
2.11 |
Optical Drive Troubleshooting ...................................................................................... |
2-27 |
2.12 |
Modem Troubleshooting................................................................................................ |
2-30 |
2.13 |
PCMCIA Troubleshooting............................................................................................. |
2-32 |
2.14 |
IEEE 1394 Troubleshooting .......................................................................................... |
2-34 |
2.15 |
Wireless LAN Troubleshooting..................................................................................... |
2-36 |
Satellite A70 Maintenance Manual |
vii |
Chapter 3 Tests and Diagnostics |
|
|
3.1 |
The Diagnostic Test ......................................................................................................... |
3-1 |
3.2 |
Executing the Diagnostic Test.......................................................................................... |
3-2 |
3.3 |
Config Check Test............................................................................................................ |
3-6 |
3.4 |
DMI Check Test ............................................................................................................... |
3-7 |
3.5 |
PIO Loopback Test........................................................................................................... |
3-8 |
3.6 |
IEEE 1394 Test ................................................................................................................ |
3-9 |
3.7 |
Speaker Audio Test ........................................................................................................ |
3-10 |
3.8 |
Fan ON/OFF Test........................................................................................................... |
3-11 |
3.9 |
Main Battery Charge Test .............................................................................................. |
3-12 |
3.10 |
FDD Test ........................................................................................................................ |
3-13 |
3.11 |
CD-ROM Test ................................................................................................................ |
3-14 |
3.12 |
Keyboard Test ................................................................................................................ |
3-15 |
3.13 |
Mouse (Pad) Test ........................................................................................................... |
3-17 |
3.14 |
LCD Pixels Mode Test................................................................................................... |
3-19 |
3.15 |
Lid Switch Test .............................................................................................................. |
3-20 |
3.16 |
HDD R/W Test............................................................................................................... |
3-21 |
3.17 |
LAN Test........................................................................................................................ |
3-23 |
3.18 |
RTC Test ........................................................................................................................ |
3-25 |
3.19 |
CD Control Button Test ................................................................................................. |
3-26 |
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Satellite A70 Maintenance Manual |
Chapter 4 Replacement Procedures |
|
|
4.1 |
General............................................................................................................................. |
4-1 |
4.2 |
Battery.............................................................................................................................. |
4-7 |
4.3 |
PC Card............................................................................................................................ |
4-9 |
4.4 |
HDD............................................................................................................................... |
4-11 |
4.5 |
Optical Drive Module .................................................................................................... |
4-13 |
4.6 |
Optical Drive.................................................................................................................. |
4-15 |
4.7 |
Wireless LAN Unit ........................................................................................................ |
4-17 |
4.8 |
Expansion Memory........................................................................................................ |
4-20 |
4.9 |
Keyboard........................................................................................................................ |
4-23 |
4.10 |
Modem ........................................................................................................................... |
4-26 |
4.11 |
Display Assembly .......................................................................................................... |
4-28 |
4.12 |
Touch Cover................................................................................................................... |
4-31 |
4.13 |
Touch Pad ...................................................................................................................... |
4-34 |
4.14 |
Speakers ......................................................................................................................... |
4-36 |
4.15 |
System Board................................................................................................................. |
4-37 |
4.16 |
Fan, Heat Sink, & CPU.................................................................................................. |
4-39 |
4.17 |
Display Mask ................................................................................................................. |
4-42 |
4.18 |
LCD Module .................................................................................................................. |
4-44 |
4.19 |
FL Inverter Board .......................................................................................................... |
4-47 |
Satellite A70 Maintenance Manual |
ix |
Appendices |
|
|
Appendix A |
Handling the LCD Module.................................................................................. |
A-1 |
Appendix B |
Board Layout....................................................................................................... |
B-1 |
Appendix C |
Pin Assignments .................................................................................................. |
C-1 |
Appendix D |
Keyboard Scan/Character Codes......................................................................... |
D-1 |
Appendix E |
Key Layout .......................................................................................................... |
E-1 |
Appendix F |
Series Screw Torque List .................................................................................... |
F-1 |
Appendix G |
Reliability ............................................................................................................ |
G-1 |
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Satellite A70 Maintenance Manual |
Chapter 1
Hardware Overview
1 Hardware Overview
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Satellite A70 Series Maintenance Manual |
1 Hardware Overview
Chapter 1 |
Contents |
1.1 |
Features...................................................................................................................... |
|
1-1 |
1.2 |
System Unit................................................................................................................ |
1-5 |
|
1.3 |
2.5-inch Hard Disk Drive........................................................................................... |
1-9 |
|
1.4 |
Removable Drives.................................................................................................... |
1-10 |
|
|
1.4.1 |
DVD-R/-RW Drive ................................................................................... |
1-10 |
|
1.4.2 |
DVD-ROM Drive...................................................................................... |
1-12 |
|
1.4.3 |
DVD+-R/DVD+-RW Drive ...................................................................... |
1-14 |
|
1.4.4 DVD Super Multi Drive............................................................................ |
1-15 |
|
1.5 |
Power Supply........................................................................................................... |
1-16 |
|
1.6 |
Batteries |
................................................................................................................... |
1-18 |
|
1.6.1 |
Main Battery.............................................................................................. |
1-18 |
|
1.6.2 |
RTC battery............................................................................................... |
1-19 |
Satellite A70 Series Maintenance Manual |
1-iii |
1 Hardware Overview
1-iv |
Satellite A70 Series Maintenance Manual |
1.1 Features |
1 Hardware Overview |
1.1Features
The Satellite A70 Series Personal Computer uses extensive Large Scale Integration (LSI), and Complementary Metal-Oxide Semiconductor (CMOS) technology extensively to provide compact size, minimum weight and high reliability. This computer incorporates the following features and benefits:
CPU
•Intel® Celeron® Processor up to 2.8 GHz
•Mobile Intel® Pentium® 4 Processor up to 3.06GHz
•Mobile Intel® Pentium® 4 Processor up to 3.2GHz supporting HT Technology
•Mobile Intel® Pentium® 4 Processor up to 538 or higher supporting HT Technology
•Micro FC-PGA package CPU
Chipset
•ATI Mobility RadeonTM 9000IGP
•ATI IXP150
•ENE KB910 for Keyboard Controller, Battery management Unit, and RTC.
•ENE CB1410 for Card Bus PCMCIA controller or CB714 for Card Bus PCMCIA controller with Multiple Digital Media Card Slot
•ALC250 for AC97 CODEC.
•TI TSB43AB21A for IEEE 1394 controller.
•Realtek RTL8100CL on board LAN.
Memory
•On board memory with 256MB or 512 MB supporting.
•Maximum system memory up to 1.5GB (one 1GB SO-DIMM module and 512MB on board RAM).
•128KB L2 Cache (Intel® Celeron® Processor up to 2.8GHz)
•512KB L2 Cache (Mobile Intel® Pentium® 4 Processor up to 3.2GHz)
•1MB L2 Cache (Mobile Intel®Pentium® 4 Processor up to 538 or higher)
•16, 32, 64 or 128 MB of system memory is provided for video display
Satellite A70 Series Maintenance Manual |
1-1 |
1 Hardware Overview |
1.1 Features |
BIOS
•512KB Flash ROM for system BIOS.
•Suspend to RAM/Disk.
•Password protection (System).
•Various hot key for system control.
•Refreshable
•Complete ACPI 1.0b Function
Power
•12-cell Li-Ion smart battery pack with 14.8V*6450mAh capacity or 8-cell Li-Ion smart battery pack with 14.8V*4300mAh capacity (depending on the models)
•Approximately 12 hours or longer charging time to 100% battery capacity (system on).
•Approximately 4 hours charge time to 100% battery capacity (system off)
•Approximately 2.6 days discharge time in standby mode for 12-cell battery and 1.7 days for 8-cell battery.
•Discharge time in shutdown mode is approximately 1 month.
HDD
•One 2.5", 9.5mm hard disk with capacity 30GB/40GB/60GB/80GB
•Bus Master IDE
•9.5mm, 2.5”HDD Support
•Support Ultra 100 synchronous DMA
ODD Devices
One of the following:
•5.25” 12.7mm height DVD-ROM drive
•5.25” 12.7mm height CD-RW/DVD-ROM drive
•5.25” 12.7mm height DVD-R/-RW drive
•5.25” 12.7mm height DVD±R/±RW drive
•5.25” 12.7mm height DVD Super Multi drive
Optional Devices
•PC2700 256MB/512MB/1GB SO-DIMM modules
•MINI PCI module(802.11g,802.11a+g wireless LAN module)
Keyboard
An easy-to-use 87-key keyboard provides a numeric keypad overlay for fast numeric data entry or for cursor and page control. It supports software that uses a 101or 102-key enhanced keyboard. Includes one Windows® key and one Application key.
1-2 |
Satellite A70 Series Maintenance Manual |
1.1 Features |
1 Hardware Overview |
TouchPad
This pointing control device, located in the center of the keyboard palm-rest, provides convenient control of the cursor without requiring desk space for a mouse. The TouchPad incorporates two mouse buttons.
Display
•15.4-inch WXGA TFT screen, 1280×800 pixels, Response time 50ms (typ.); For Normal LCD-Contrast ratio 300:1 (typ.); Brightness 168 Nit (typ.)
•15.4-inch WXGA TFT screen, 1280×800 pixels, Response time 50ms (typ.); For Hight brightness CSV-Contrast ratio 600:1 (typ.); Brigntness 220 Nit(typ.)
I/O Ports
•One 25 pins Parallel port, EPP/ECP Capability
•One 15 pins CRT port, Support DDC 2B
•One TV-out connector
•One MIC In port
•One headphone-out
•One 2pins AC Adapter Jack
•One type II PCMCIA Card Bus slots
•Three 4 pins USB ports
•One RJ11/RJ45 Port
•VR for volume control
•IrDA Port
•1394 Port
•Multiple Digital Media Card Slot (SD/MMC/SM/MS/MS Pro/xD)
•One 10/100T Ethernet Port
PCMCIA Card Organization
•One type II card socket only
•SRAM, OTPROM, FLASH ROM
•Mask ROM memory card
•MODEM/LAN card
•Card bus card
•PC Card 8.0 Compliant, supports 3V and 5V cards
Multiple Digital Media Card
•Supports SD/MMC/SM/MS/MS Pro/xD card
•SD memory capacity support from 8MB to 512MB
•MMC memory capacity support from 8MB to 256MB
•SM memory capacity support from 4MB to 128MB
•MS memory capacity support from 8MB to 256MB
•MS Pro memory capacity support from 256MB to 1GB
•xD memory capacity support from 4MB to 512MB
Universal Serial Bus (USB)
Satellite A70 Series Maintenance Manual |
1-3 |
1 Hardware Overview |
1.1 Features |
The computer comes with three USB ports that comply with Universal Host Controller Interface (UHCI). The USB enables daisy-chain connection of up to 127 USB-equipped devices. It is designed for easy configuration by a Plug-and-Play operating system and provides hot insertion/ejection capability.
Parallel port
A 25-pin parallel port enables connection of a printer or other parallel device. The port supports Extended Capabilities Port (ECP) conforming to IEEE-1284 and is Enhanced Parallel Port (IEEE 1284) compliant. It features ChiProtect circuitry for protection against damage due to printer power-on.
External monitor port
A 15-pin CRT port supporting DDC 2B enables connection of an external monitor, which is recognized automatically by Video Electronics Standards Association (VESA) Display Data Channel (DDC) compatible functions.
Sound system
A Cirrus logic ALC250 for AC97 codec audio subsystem offers industry leading mixed signal technology to enhance the computer’s multimedia capability. The sound system is equipped with stereo speakers and jacks for headphone and external microphone.
TV-out port
This video-out mini-jack enables transfer of NTSC or PAL data (video and right/left audio) to external devices such as a TV.
LAN port
The computer comes with an RJ-45 Local Area Network (LAN) port. The LAN port provides connectivity for LAN.
Programmable button
When system is off, pressing this button will turn on CD Playback mode. Pressing this button again will turn off CD Playback mode. When system is turned on, pressing this button will launch the program which you defined with Programmable Button utility.(The default setting is Windows Media Player)
1-4 |
Satellite A70 Series Maintenance Manual |
1.2 System Unit |
1 Hardware Overview |
1.2System Unit
The system unit is composed of the following major components:
Processor
•Intel® Celeron® Processor up to 2.8 GHz
•Mobile Intel® Pentium® 4 Processor up to 3.06GHz
•Mobile Intel® Pentium® 4 Processor up to 3.2GHz supporting HT Technology
•Mobile Intel® Pentium® 4 Processor up to 538 or higher supporting HT Technology
•Micro FC-PGA package CPU
System Logic
•ATI Mobility RADEON™ 9000IGP/216CLS3BGA21H
•Integrated DRAM controller
•Hub Interface to ATI IXP150/218S2EBNA43
•Power Management Functions
Keyboard Controller
• KB910 is use as keyboard controller and battery management unit
Memory
•System DRAM
•One JEDEC standard 200-pins DDR SO-DIMM memory support +2.5V PC2700 128/256/512MB/1024MB.
•System & KB Combine ROM BIOS
•512KB Flash ROM
Video Subsystem (ATI Mobility RADEON™)
•UMA VGA Memory up to 128MB
•Display Core Frequency of 200/250/266/333MHZ
•3D Graphics Engine
•Analog Display support
•Digital Video out port(DVOB and DVOC)support
•DVOB With 165-MHZ clot clock support for 12 bit interface.
•Dedicated 2FP(local flat panel) interface
•Single or dual channel LVDS panel support up to WXGA panel, resolution with frequency range from 25MHZ to 112MHZ per channel.
SMsC LPC 47N217 Super I/O with LPC Interface
•PC99a, PC2001
•ACPI 2.0 Compliant
Satellite A70 Series Maintenance Manual |
1-5 |
1 Hardware Overview |
1.2 System Unit |
•Serial Ports
•One Full Function Serial Port
•High Speed NS 16C550A Compatible UARTs with Send/Receive 16-Byte FIFO
•Supports 230k and 460k Baud
•Programmable Baud Rate Generator
•Modem Control Circuitry
•Infrared Communications Controller
•IrDA v1.2 (4Mbps), HPSIR, ASKIR, Consumer IR Support
•1 IR Ports
•96 Base I/O Address, 15 IRQ Options and 3 DMA Options
•Multi-Mode Parallel Port with ChiProtect
•Standard Mode IBM PC/XT , PC/AT, and PS/2 Compatible Bidirectional Parallel Port
•Enhanced Parallel Port (EPP)
Compatible – EPP 1.7 and EPP 1.9 (IEEE 1284 Compliant)
•IEEE 1284 Compliant Enhanced Capabilities Port (ECP)
•ChiProtect Circuitry for Protection Against Damage Due to Printer Power-On
•192 Base I/O Address, 15 IRQ and 3 DMA Options
•LPC Bus Host Interface
•Multiplexed Command, Address and Data Bus
•8-Bit I/O Transfers
•8-Bit DMA Transfers
•16-Bit Address Qualifiation
•Serial IRQ Interface Compatible with Serialized Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems
•PCI CLKRUN# Support
•Power Management Event (IO_PME#) Interface Pin
Audio subsystem
•Realtek ALC250 for AC97 codec
−AC 97 2.2 Compatible.
−Industry Leading Mixed Signal Technology.
−20-bit Stereo Digital-to-Analog Converters.
−18-bit Stereo Analog-to- Digital Converters.
−Sample Rate Converters.
−Four Analog Line-level Stereo Inputs for LIN_IN, CD, VIDEO, and AUX.
−Two Analog Line-level Mono Inputs for Modem and Internal PC Beep.
−Dual Stereo Line-level Outputs for LINE_OUT and ALT_LINE _OUT.
−Dual Microphone Inputs.
−High Quality Differential CD Input.
1-6 |
Satellite A70 Series Maintenance Manual |
1.2 System Unit |
1 Hardware Overview |
−Extensive Power Management Support.
−Meets or Exceeds the Microsoft® PC 99 Audio & WLP2.0 audio Requirements.
−S/PDIF Digital Audio Output.
−3D Stereo Enhancement.
−Support double sampling rate (96KHz) of DVD audio playback.
ENE CB714 Card Bus Host Adapter
•3.3V Operation with I/O 5V Tolerance
•LFBGA 169-ball Package
•Pinout Compatible with CB1410.
•PCI Interface
•Compliant with PCI Local Bus Specification Revision 2.3
•Compliant with PCI Bus Power Management Interface Specification Revision 1.1
•Compliant with PCI Mobile Design Guide Version 1.1
•Compliant with Advanced Configuration and Power Interface Specification Revision 1.0
•CardBus Interface
•Compliant with PC Card Standard 8.0
•Support Standardized Zoomed Video Register Model
•Support SPKROUT CAUDIO and RIOUT#
•Secure Digital Interface
•Compliant with SD Host Controller Standard Specification Version 1.0
•Support SD Suspend/Resume Functionality
•Support DMA Mode to Minimize CPU Overhead
•Support High Speed with the SD Clock Frequency Up to 50Mhz
•Contain two 512-byte buffer to maximize the transfer speed
•Support Traffic LED Light
•Support Over Current Protection
•Secure Digital Interface
•Compliant with SD Host Controller Standard Specification Version 1.0
•Support SD Suspend/Resume Functionality
•Support DMA Mode to Minimize CPU Overhead
•Support High Speed with the SD Clock Frequency Up to 50Mhz
Satellite A70 Series Maintenance Manual |
1-7 |
1 Hardware Overview |
1.2 System Unit |
•– Contain two 512-byte buffer to maximize the transfer speed
•– Support Traffic LED Light
•– Support Over Current Protection
1-8 |
Satellite A70 Series Maintenance Manual |
1.4 Removable Drives |
1 Hardware Overview |
1.32.5-inch Hard Disk Drive
The internal HDD is a random access non-volatile storage device. It has a non-removable 2.5- inch magnetic disk and mini-Winchester type magnetic heads. The computer supports a 30 / 40 / 60 / 80GB HDD.
Satellite A70 Series Maintenance Manual |
1-9 |
1 Hardware Overview |
1.4 Removable Drives |
1.4Removable Drives
The module compartments can accommodate the following removable modules:
•DVD-R/-RW drive
•DVD-ROM drive
•CD-RW/DVD-ROM drive
•DVD+-R/+-RW drive
•DVD Super Multi ddrive
1.4.1DVD-R/-RW Drive
The DVD-R/-RW drive (Toshiba SD-R6112) accommodates either 12cm (4.72-inch) or 8cm (3.15-inch) CDs or DVDs.
Read speeds
DVD-ROM |
Maximum 8 times faster rotational speed |
||
DVD-RAM |
Standard rotational speed |
||
CD-ROM |
Maximum 24 times faster rotational speed |
||
Write speeds |
|
|
|
CD-R |
4,16 times faster rotational speed |
||
CD-RW |
4 times faster rotational speed |
||
High-Speed CD-RW |
4,10 times faster rotational speed |
||
DVD-R |
1, 2 times rotational speed |
||
DVD-RW disc |
1 times rotational speed |
|
|
Access Speed |
|
|
|
Average Random Access Time |
DVD-ROM: |
115 ms (3.3-8X) |
|
|
|
CD-ROM: |
105 ms (10.3-24X) |
|
|
DVD-RAM: |
170 ms (4.7GB 1X) |
Average Random Seek Time |
|
DVD-ROM: |
105 ms (3.3-8X) |
|
|
CD-ROM: |
100 ms (10.3-24X) |
|
|
DVD-RAM: |
120 ms (4.7GB 1X) |
Average Full Stroke Access Time |
DVD-ROM: |
195 ms (3.3-8X) |
|
|
|
CD-ROM: |
180 ms (10.3-24X) |
|
|
DVD-RAM: |
350 ms (4.7GB 1X) |
Buffer capacity |
|
2 Mbytes (Max) |
|
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Satellite A70 Series Maintenance Manual |
1.4 Removable Drives |
1 Hardware Overview |
Supported formats
Applicable |
CD |
Write Formats: |
DVD |
Applicable |
CD |
Write Disc: |
|
|
DVD |
Applicable |
CD |
Read Disc: |
|
|
DVD |
CD-R/RW
DVD-R
DVD-RW
CD-R/RW [CD-DA, CD+(E)G, CD-MIDI, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video-CD), Multisession CD (Photo-CD, CD-EXTRA, Portfolio)]
DVD-RW
DVD-R
CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, CD-I, CD-I Bridge (Photo-CD, Video-CD) Multisession CD (Phto-CD, CD-EXTRA, CD-R, CD-RW, Portfolio), CD-R, CD-RW
DVD-ROM [DVD-5, DVD-9, DVD-10, DVD-18] DVD-R
DVD-RW
DVD-RAM
Satellite A70 Series Maintenance Manual |
1-11 |
1 Hardware Overview |
1.4 Removable Drives |
1.4.2 DVD-ROM Drive
The DVD-ROM drive (Toshiba SD-C2612 or Matsushita SR-8177) accommodates either 12cm (4.72-inch) or 8cm (3.15-inch) CDs or DVDs.
Transfer rates
Matsushita SR-8177: The DVD-ROM drive is able to read CD-ROM, CD-R data at 10.3X to 24X CAV mode speed and CD-RW data at 5.1X to 12X CAV mode speed. The drive has a transfer rate of max. 3 600 kbyte/s for CD-ROM data, CD- R and max. 1 800 kbyte/s for CD-RW data. The drive is able to read DVD disc at CAV mode speed. The drive has a transfer rate of max. 11.08 Mbyte/s for DVD data.
Toshiba SD-C2612: Max.8X (DVD-ROM) / Max. 24X (CD-ROM)/2X (DVD-RAM Ver.1.0)/1X (DVD-RAM Ver.2.1)
Max. 10,820 KByte/s (DVD-ROM)/Max. 3,600KByte/s (CD-ROM) Sustained Transfer Rate
Buffer capacity |
|
|
Matsushita SR-8177: 256 Kbytes (Max) |
|
|
Toshiba SD-C2612 |
192 Kbytes (Max) |
|
Supported formats |
|
|
CD: CD-Audio |
CD-ROM (mode 1 and mode 2) |
CD-ROM XA (mode 2, form 1 and form 2) |
CD-I Bridge |
CD-I (mode 2, form 1 and form 2) |
CD-TEXT |
Video CD |
CD-RW |
Photo CD |
CD-WO** |
Enhanced Music CD (CD Plus)** |
CD-I Ready** |
CD+(E)G* |
CD-MIDI* |
CD-R* |
DVD: DVD-5 |
DVD-9 |
DVD-10 |
DVD-18* |
DVD-RAM (2.6G/4.7G) |
DVD-R (3.95G/4.7G) |
DVD-RW |
|
|
*Toshiba SD-C2612 only
**Matsushita SR-8177only
1-12 |
Satellite A70 Series Maintenance Manual |
1.4 Removable Drives |
1 Hardware Overview |
CD-RW/DVD-ROM Drive
The CD-RW/DVD-ROM combo drive (Toshiba SD-R2412 or TEAC DW-224E-85) is capable of driving either 12cm (4.72-inch) or 8cm (3.15-inch) DVDs and CDs without using an adaptor.
Read speeds |
|
|
|
DVD-ROM |
Maximum 8 times faster rotational speed |
||
DVD-RAM |
Standard rotational speed |
||
CD-ROM |
Maximum 24 times faster rotational speed |
||
Write speeds |
|
|
|
CD-R |
4,8,16,24 times faster rotational speed |
||
CD-RW |
4 times faster rotational speed |
||
High-Speed CD-RW |
4,10 times faster rotational speed |
||
Access Speed |
|
|
|
Average Random Access Time |
DVD: |
100 ms typ (Toshiba SD-R2412) |
|
|
|
|
110 ms typ (TEAC DW-224E-85) |
|
|
CD: |
90 ms typ (10.3-24X) |
|
|
DVD-RAM: |
170 ms* |
Average Random Seek Time |
|
DVD: |
85 ms typ* |
|
|
CD: |
80 ms typ (10.3-24X)* |
|
|
DVD-RAM: 130 ms typ* |
|
Average Full Stroke Access Time |
DVD: |
170 ms typ* |
|
|
|
CD: |
160 ms typ (10.3-24X)* |
|
|
DVD-RAM: |
300 ms* |
* Toshiba SD-R2412
Buffer capacity
Supported formats
Applicable CD Write Formats: Applicable CD Write Disc:
Applicable CD
Read Disc:
DVD
2 Mbytes (Max)
CD-R
CD-RW
CD-R
CD-RW [CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video-CD), Multisession CD (Photo-CD, CD-EXTRA, Portfolio)]
CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video-CD), Multisession CD (PhotoCD, CD-EXTRA, Portfolio, CD-R, CD-RW), CD-R, CD-RW
DVD-ROM [DVD-5, DVD-9, DVD-10, DVD-18] DVD-R
DVD-RW
DVD-RAM
Satellite A70 Series Maintenance Manual |
1-13 |
1 Hardware Overview |
1.5 Power Supply |
1.4.3 DVD+-R/DVD+-RW Drive
The CD-RW/DVD-ROM combo drive (Toshiba SD-R2412 or TEAC DW-224E-85) is capable of driving either 12cm (4.72-inch) or 8cm (3.15-inch) DVDs and CDs without using an adaptor.
Read speeds |
|
|
|
DVD-ROM |
Maximum 8 times faster rotational speed |
||
DVD-RAM |
Standard rotational speed |
||
CD-ROM |
Maximum 24 times faster rotational speed |
||
Write speeds |
|
|
|
CD-R |
4,8,16,24 times faster rotational speed |
||
CD-RW |
4 times faster rotational speed |
||
High-Speed CD-RW |
4,10 times faster rotational speed |
||
Access Speed |
|
|
|
Average Random Access Time |
DVD: |
100 ms typ (Toshiba SD-R2412) |
|
|
|
|
110 ms typ (TEAC DW-224E-85) |
|
|
CD: |
90 ms typ (10.3-24X) |
|
|
DVD-RAM: |
170 ms* |
Average Random Seek Time |
|
DVD: |
85 ms typ* |
|
|
CD: |
80 ms typ (10.3-24X)* |
|
|
DVD-RAM: 130 ms typ* |
|
Average Full Stroke Access Time |
DVD: |
170 ms typ* |
|
|
|
CD: |
160 ms typ (10.3-24X)* |
|
|
DVD-RAM: |
300 ms* |
* Toshiba SD-R2412
Buffer capacity
Supported formats
Applicable CD Write Formats: Applicable CD Write Disc:
Applicable CD
Read Disc:
DVD
2 Mbytes (Max)
CD-R
CD-RW
CD-R
CD-RW [CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video-CD), Multisession CD (Photo-CD, CD-EXTRA, Portfolio)]
CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video-CD), Multisession CD (PhotoCD, CD-EXTRA, Portfolio, CD-R, CD-RW), CD-R, CD-RW
DVD-ROM [DVD-5, DVD-9, DVD-10, DVD-18] DVD-R
DVD-RW
DVD-RAM
1-14 |
Satellite A70 Series Maintenance Manual |
1.5 Power Supply |
1 Hardware Overview |
1.4.4DVD Super Multi Drive
The CD-RW/DVD-ROM combo drive (Toshiba SD-R2412 or TEAC DW-224E-85) is capable of driving either 12cm (4.72-inch) or 8cm (3.15-inch) DVDs and CDs without using an adaptor.
Read speeds |
|
|
|
DVD-ROM |
Maximum 8 times faster rotational speed |
||
DVD-RAM |
Standard rotational speed |
||
CD-ROM |
Maximum 24 times faster rotational speed |
||
Write speeds |
|
|
|
CD-R |
4,8,16,24 times faster rotational speed |
||
CD-RW |
4 times faster rotational speed |
||
High-Speed CD-RW |
4,10 times faster rotational speed |
||
Access Speed |
|
|
|
Average Random Access Time |
DVD: |
100 ms typ (Toshiba SD-R2412) |
|
|
|
|
110 ms typ (TEAC DW-224E-85) |
|
|
CD: |
90 ms typ (10.3-24X) |
|
|
DVD-RAM: |
170 ms* |
Average Random Seek Time |
|
DVD: |
85 ms typ* |
|
|
CD: |
80 ms typ (10.3-24X)* |
|
|
DVD-RAM: 130 ms typ* |
|
Average Full Stroke Access Time |
DVD: |
170 ms typ* |
|
|
|
CD: |
160 ms typ (10.3-24X)* |
|
|
DVD-RAM: |
300 ms* |
* Toshiba SD-R2412
Buffer capacity
Supported formats
Applicable CD Write Formats: Applicable CD Write Disc:
Applicable CD
Read Disc:
DVD
2 Mbytes (Max)
CD-R
CD-RW
CD-R
CD-RW [CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video-CD), Multisession CD (Photo-CD, CD-EXTRA, Portfolio)]
CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video-CD), Multisession CD (PhotoCD, CD-EXTRA, Portfolio, CD-R, CD-RW), CD-R, CD-RW
DVD-ROM [DVD-5, DVD-9, DVD-10, DVD-18] DVD-R
DVD-RW
DVD-RAM
Satellite A70 Series Maintenance Manual |
1-15 |
1 Hardware Overview |
1.5 Power Supply |
1.5Power Supply
The power supply supplies seven different voltages to the system board and performs the following functions:
1.A/D conversion
The EC uses 10-bit sampling for A/D conversion to determine the following values:
•AC adaptor current
•Battery and temperature
2.AC adaptor and battery check
The EC checks the following by A/D converted values:
•Battery installed
The EC checks the following by GPIO values:
•AC adaptor connected
3.Abnormal check
The EC determines whether the condition is abnormal, and if so, stores an error code into the error register.
4.Input port management
The EC monitors the following input signal status:
•System power ON/OFF status
•Direct CD power ON/OFF status
5.Beep and LED control
Beep is caused by the low battery status.
The EC controls the following two kinds of LED DC IN LED (one color: green)
•Green = indicates AC adaptor is connected
Battery LED (two colors: orange and green)
•Green solid = The battery is fully charged.
1-16 |
Satellite A70 Series Maintenance Manual |
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