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portege a100
Service Manual
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Toshiba portege a100 Service Manual

1
Toshiba Personal Computer
PORTEGE A100
Maintenance Manual
TOSHIBA CORPORATION
File Number 960-460
Copyright
© 2003 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 PORTEGE A100 Maintenance Manual
First edition October 2003
Disclaimer
This manual has been validated and reviewed for accuracy. The instructions and descriptions it contains are accurate for the Toshiba PORTEGE A100 Maintenance Manual at the time of this manual's production. However, succeeding computers and manuals are subject to change without notice. Toshiba assumes no liability for damages incurred directly or indirectly from errors, omissions or discrepancies between the computer and the manual.
Trademarks
Intel and Pentium are registered trademarks and Speed Step is a trademark of Intel Corporation. Windows and Microsoft are registered trademarks of Microsoft Corporation. Photo CD is a trademark of Eastman Kodak. Other trademarks and registered trademarks not listed above may be used in this manual. Bluetooth is a trademark owned by its proprietor and used by Toshiba under license.
Preface
This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer PORTEGE A100.
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.
q Be sure to fasten screws securely with the right screwdriver. Be sure to use the PH
Point size “0” and “1” screwdrivers complying with the ISO/DIS 8764-1:1996. 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.
q 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.
The manual is divided into the following parts:
Chapter 1 Hardware Overview describes the PORTEGE A100 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:
q Handling the LCD module q Board layout q Pin assignment q Display codes q Key layout q BIOS/KBC/EC Update q Reliability q Key FD
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 PORTEGE A100 that appears on its display is presented in the type face below:
Format complete System transferred

Table of Contents

Chapter 1 Hardware Overview
1.1 Features ......................................................................................................................1-1
1.2 2.5-inch Hard Disk Drive .........................................................................................1-10
1.3 Keyboard..................................................................................................................1-12
1.4 CD-RW/DVD-ROM Drive......................................................................................1-13
1.5 CD-ROM Drive........................................................................................................1-14
1.6 DVD-Multi Drive.....................................................................................................1-15
1.7 TFT Color Display...................................................................................................1-16
1.8 Power Supply...........................................................................................................1-18
1.9 Batteries ...................................................................................................................1-20
1.10 AC Adapter..............................................................................................................1-22
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting .........................................................................................................2-1
2.2 Troubleshooting Flowchart........................................................................................2-2
2.3 Power Supply Troubleshooting..................................................................................2-6
2.4 System Board Troubleshooting................................................................................2-16
2.5 USB 3.5” FDD Troubleshooting..............................................................................2-29
2.6 2.5” HDD Troubleshooting ......................................................................................2-32
2.7 Keyboard Troubleshooting ......................................................................................2-37
2.8 Display Troubleshooting ..........................................................................................2-38
2.9 Optical Drive Troubleshooting ................................................................................2-40
2.10 Touch Pad Troubleshooting.....................................................................................2-41
2.11 Modem Troubleshooting ..........................................................................................2-42
2.12 LAN Troubleshooting..............................................................................................2-43
2.13 Sound Troubleshooting............................................................................................2-44
2.14 SD Card Slot Troubleshooting .................................................................................2-46
2.15 Wireless LAN Troubleshooting...............................................................................2-47
2.16 Bluetooth Troubleshooting ......................................................................................2-51
Chapter 3 Tests and Diagnostics
3.1 The Diagnostic Test...................................................................................................3-1
3.2 Executing the Diagnostic Test ...................................................................................3-3
3.3 Subtest .......................................................................................................................3-7
3.4 System Test ................................................................................................................3-9
3.5 Memory Test ............................................................................................................3-12
3.6 Keyboard Test ..........................................................................................................3-14
3.7 Display Test .............................................................................................................3-18
3.8 USB Floppy Disk Test .............................................................................................3-21
3.9 Hard Disk Test.........................................................................................................3-23
3.10 Real Timer Test ........................................................................................................3-26
3.11 NDP Test..................................................................................................................3-28
3.12 Expansion Test.........................................................................................................3-29
3.13 CD-ROM/DVD-ROM Test .....................................................................................3-31
3.14 Wireless LAN (Calexico) Test.................................................................................3-32
3.15 Wireless LAN (Atheros 11b/g or 11a/b/g) Test.......................................................3-33
3.16 Bluetooth Test .........................................................................................................3-36
3.17 Sound/LAN/Modem Test.........................................................................................3-45
3.18 IEEEE 1394 Test ......................................................................................................3-47
3.19 Error Status Code.....................................................................................................3-48
3.20 HDC Status ..............................................................................................................3-50
3.21 FDD Cleaning ..........................................................................................................3-52
3.22 Log Utilities .............................................................................................................3-53
3.23 Running Test ............................................................................................................3-55
3.24 Floppy Disk Drive Utilities......................................................................................3-57
3.25 System Configuration..............................................................................................3-63
3.26 SETUP .....................................................................................................................3-65
Chapter 4 Replacement Procedures
4.1 Overview....................................................................................................................4-1
4.2 Battery pack ...............................................................................................................4-8
4.3 PC card.....................................................................................................................4-10
4.4 SD memory card ......................................................................................................4-11
4.5 Connector panel.......................................................................................................4-12
4.6 Keyboard holder/Keyboard ......................................................................................4-13
4.7 Optical drive.............................................................................................................4-16
4.8 Palm rest/Touch pad.................................................................................................4-17
4.9 Memory module .......................................................................................................4-21
4.10 HDD .........................................................................................................................4-23
4.11 Wireless LAN module .............................................................................................4-25
4.12 MDC module............................................................................................................4-26
4.13 RTC battery..............................................................................................................4-27
4.14 Internal Microphone/Cover Latch............................................................................4-28
4.15 Bluetooth module .....................................................................................................4-30
4.16 Cover Assembly .......................................................................................................4-31
4.17 LED board................................................................................................................4-34
4.18 System Board ...........................................................................................................4-35
4.19 2nd Battery Board/Heat sink/CPU............................................................................4-37
4.20 CPU fan....................................................................................................................4-41
4.21 Speaker.....................................................................................................................4-42
4.22 LCD unit / FL Inverter .............................................................................................4-44
4.23 LCD cable / Wireless LAN antenna / Bluetooth antenna ........................................4-48
4.24 Hinge assembly........................................................................................................4-53
4.25 Fluorescent Lamp.....................................................................................................4-55
Appendices
Appendix A Handling the LCD Module ........................................................................ A-1
Appendix B Board Layout...............................................................................................B-1
Appendix C Pin Assignment .......................................................................................... C-1
Appendix D Keyboard Scan/Character Codes ............................................................... D-1
Appendix E Key Layout..................................................................................................E-1
Appendix F BIOS/KBC/EC Update ...............................................................................F-1
Appendix G Reliability................................................................................................... G-1
Appendix H Key FD....................................................................................................... H-1

Chapter 1 Hardware Overview

1 Hardware Overview
1 Hardware Overview
1 Hardware Overview
Chapter 1 Contents
1.1 Features ......................................................................................................................1-1
1.2 2.5-inch Hard Disk Drive .........................................................................................1-10
1.3 Keyboard..................................................................................................................1-12
1.4 CD-RW/DVD-ROM Drive......................................................................................1-13
1.5 CD-ROM Drive........................................................................................................1-14
1.6 DVD-Multi Drive.....................................................................................................1-15
1.7 TFT Color Display...................................................................................................1-16
1.7.1 LCD Module.......................................................................................1-16
1.7.2 FL Inverter Board ...............................................................................1-17
1.8 Power Supply...........................................................................................................1-18
1.9 Batteries ...................................................................................................................1-20
1.9.1 Main Battery.......................................................................................1-20
1.9.2 Battery Charging Control...................................................................1-20
1.9.3 RTC battery........................................................................................1-21
1.10 AC Adapter..............................................................................................................1-22
1 Hardware Overview
Figures
Figure 1-1 Front of the computer.....................................................................................1-5
Figure 1-2 System units configuration............................................................................1-5
Figure 1-3 System Block Diagram..................................................................................1-6
Figure 1-4 2.5-inch HDD...............................................................................................1-10
Figure 1-5 Keyboard......................................................................................................1-12
Tables
Table 1-1 2.5-inch HDD dimensions ...........................................................................1-10
Table 1-2 2.5-inch HDD Specifications .......................................................................1-11
Table 1-3 CD-RW/DVD-ROM drive dimensions........................................................1-13
Table 1-4 CD-RW/DVD-ROM drive specifications ....................................................1-13
Table 1-5 CD-ROM drive dimensions .........................................................................1-14
Table 1-6 CD-ROM drive specifications .....................................................................1-14
Table 1-7 DVD-ROM drive specifications ..................................................................1-15
Table 1-8 LCD m odule specifications (TMD-maid 12.1 TFT)....................................1-16
Table 1-9 LCD m odule specifications (LG Phillip-maid 12.1 TFT) ...........................1-16
Table 1-10 FL inverter board specifications ..................................................................1-17
Table 1-11 Power supply output specifications .............................................................1-18
Table 1-12 Battery specifications ...................................................................................1-20
Table 1-13 Time required for charges of main battery...................................................1-21
Table 1-14 RTC battery charging and data preservation time .......................................1-21
Table 1-15 AC adapter specifications ............................................................................1-22

1.1 Features 1 Hardware Overview

1 Features
1.1 Features
The PORTEGE A100 is an ultra thin and lightweight PC realizing cable-less environment on a table by wireless function with a Mobile Intel Pentium M processor realizing high performance.
θ Microprocessor
Mobile Intel Pentium Processor-M A 1.40GHz Mobile Intel Pentium M with a 1.40GHz internal clock, 400MHz bus and
1.484V core operation.
θ Cache memory
The Mobile Intel Pentium M processor has 32KB primary cache and 1MB secondary cache (in CPU).
θ Memory
Two memory slots are equipped. Memory module can be installed up to 1GB (1,024MB). Memory modules of 256MB and 512MB sizes are available.
θ VRAM
16MB VRAM UMA. The VRAM can be extended by DVMT (Dynamic Video Memory Technology).
θ HDD
Built-in 2.5-inch x 9.5mm height, 40GB or 60GB HDD
θ USB FDD (Optional)
An external two-mode 3.5-inch FDD, which connects with a USB port, supports 720KB and 1.44MB formats and enables booting from system FD.
θ Display
LCD and CRT can be displayed at the same time. LCD
Built-in 12.1 inch, 262,144 colors, XGA (1,024×768 dots), thin type low temperature poly-silicon TFT color display. A Video controller is included in North Bridge chip.
1 Hardware Overview 1.1 Features
CRT
Supported via a RGB connector.
TV-out (depending on the model).
Has a TV output terminal.
θ Optical device (BTO)
Built-in a CD-RW/DVD-ROM drive, CD-ROM drive or DVD-multi drive.
θ Keyboard
An-easy-to-use 85-key keyboard provides a numeric keypad overlay for fast numeric data entry or for cursor and page control. The keyboard also includes two keys that have special functions in Microsoft Windows XP. It supports software that uses a 101- or 102-key enhanced keyboard.
θ Touch pad
Touch pad is installed as a pointing device.
θ Battery
The RTC battery is mounted inside the computer. The main battery is a detachable lithium ion main battery (10.8V-4000mAh) and the RTC battery is a lithium ion battery (2.4V-17mAh).
θ Slot for expansion memory
One SO-DIMM slots are available for expansion memory of 256 or 512MB memory modules. One module must be installed in slot A as standard memory.
θ USB (Universal Serial Bus )
The computer comes with four USB ports that comply with the USB 2.0 standard. The USB 2.0 enables daisy-chain connection of up to 127 USB-equipped devices and 480Mbps serial data transfer. It is designed for easy configuration by a Plug-and-Play operating system and provides hot insertion/ejection capability.
θ PC card slot
A Type II PC card is acceptable. Supports ToPIC -100 (3.3V/CardBus).
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1.1 Features 1 Hardware Overview
θ SD card slot
The computer is equipped with a SD Card slot that can accommodate Secure Digital flash memory cards with capacities of 8MB, 16MB, 32MB, 64MB, 256MB and 512MB. SD cards let the user easily transfer data from devices, such as digital cameras and Personal Digital Assistants, that use SD Card flash-memory. The cards have a high-level of security and copy protection features.
θ Sound system
This computer includes sound controllers that support AC ’97 I/F (AC-Link) Revision
2.2. The sound system is equipped with the following:
• Stereo Speaker
• Built-in Microphone
• Volume control knob
• Headphone jack
• External microphone jack
θ One touch button
An Internet button, mail button and cyber support button are installed.
θ Built-in Modem
The computer contains a MDC, enabling data and fax communication. It supports ITU-TV.90. The transfer rates are 56 Kbps for data reception, 33.6 Kbps fo r data transmission, and 14,400 bps for fax transmission. However, the actual speed depends on the line quality. The RJ11 modem jack is used to accommodate a telephone line.
θ Internal LAN
The computer is equipped with LAN circuits that support Ethernet LAN (10 megabits per second, 10BASE-T) and Fast Ethernet LAN (100 mega bits per second, 100 BASE-TX). It also supports Wakeup on LAN (WOL) and Magic Packet.
θ Wireless LAN (mini PCI Card slot (1 slot, BTO))
The wireless LAN supports 802.11b (11ch/13ch), 802.11a/b or 802.11 b/g. This function ca be switched on and off by a switch on the computer.
θ IEEE1394
One port of IEEE1394 connector is mounted. I/O devices (digital video camera, etc) supporting IEEE1394 can be connected.
1 Hardware Overview 1.1 Features
θ Bluetooth (BTO)
Depending on the model, the computer is equipped with a dedicated Bluetooth module. This enables a communication to devices that support Bluetooth Version 1.1. It can be switched on or off with a switch on the computer.
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1.1 Features 1 Hardware Overview
Figure 1-1 shows the front of the computer and Figure 1-2 shows the system units configuration.
Figure 1-1 Front of the computer
Figure 1-2 System units configuration
1 Hardware Overview 1.1 Features
Figure 1-3 shows the system block diagram.
Figure 1-3 System Block Diagram
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1.1 Features 1 Hardware Overview
The PC contains the following components.
θ CPU
Mobile Intel Pentium M Processor-M
• A 1.40GHz Pentium M processor with a 1.40GHz internal clock, 400MHz bus
and 1.484V core operation voltage
• Internal cache memory: 32KB
• Secondary cache memory: 1MB
Internal cache memory: 32KB
• Integrated NDP
θ Memory
Two memory slots (DDR266). Memory modules in 256MB and 512MB can be installed to a maximum of 1GB (1,024MB).
• 3.3V operation
• 140-pin exclusive memory board
• Access time 6ns
• Memory Supporting PC-2100
θ BIOS ROM (FWH)
• 8Mbit (512K×16-bit chip)
− 32KB used for logo and icon
− 64KB used for setup and checksum
− 128KB used for system BIOS
− 64KB used for VGA-BIOS
− 32KB used for ACPI
− 64kB used for Sound logo
− 16KB used for Parameter block
− 16KB used for MBI
− 32KB used for Option logo
− 448KB reserved
1 Hardware Overview 1.1 Features
θ PCI chipset
This gate array incorporates the following elements and functions
• North Bridge (Intel Montara GM)
− CPU interface and control
− DRAM control
− AGP master slave interface (Complies with AGP V2.0)
− PCI interface (Complies with PCI Rev 2.2)
− Built-in graphic (Trident XP)
− 555-ball 35x35mm BGA package
• South Bridge (Intel ICH4 -M)
− PCI 3.3V/5V tolerance interface
− Steerable PCI interrupts for PCI device P lug-and-Play
− Enhanced DMA controller
− Interrupt controller
− Counter/timers
− Distributed DMA supported
− PC/PCI DMA supported
− Serial IRQ supported
− Low Pin Count (LPC) host controller
− Plug -and-Play supported
− Built-in KB controller
− ACPI supporting features
− Built-in PCI IDE controller
− USB interface
− SMBus interface
− Super I/O interface
− Audio system
− SW modem interface
− 352-ball (27mm x 27mm) BGA package
θ VGA controller
Included in North Bridge.
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1.1 Features 1 Hardware Overview
θ PC card controller (YEBISU3S)
• PCI interface (PCI Revision2)
• Chipset interface
• Intel serial interrupt
• CardBus/PC Card controller (Yenta Version2.2) :2 slots
• Parallel power supply control (Toshiba style) and serial power supply control
(Texas Instruments style)
• SD memory card controller (SDHC Ver.1.2)
• SDIO card controller (Ver.1.0)
• SmartMedia controller (SMHC Ver.01/SMIL 1.0)
• SmartCard interface
• SIO controller
• Docking station interface
Q switch control, reset control
• External device interface
FDD/IDE hot plugging and removal control
θ Modem controller
Supported by MDC. Using the secondary AC97 Line.
θ LAN controller (Intel–made ED82562 (Kinnereth ))
Controls LAN and supports 100Base-TX and 10Base-T.
θ Other main system chips
• EC/KBC (Hitachi-made HD64F2169BVTE10 x 1)
• PSC (Toshiba made TMP87PM48U x 1)
• CPU temperature sensor (AND-made ADM1032 AR-REEL7 x 1)
• Temperature switch (Maxim-made MAX6501UKP)
• Clock Generator (ICS-made ICS950812)
• TV Encoder (CH7011A)
• SOUND CODEC (AND-made AD1981B)
• 1394 Controller (TI-made TSB43AB22PDT)
• E2PROM (BR93LC46F-Q (used for LAN MAC address))

1 Hardware Overview 1.2 2.5-inch Hard Disk Drive

1.2 2.5-inch Hard Disk Drive
A compact, high-capacity HDD with a height of 9.5mm. Contains a 2.5-inch magnetic disk and magnetic heads.
Figure 1-4 shows a view of the 2.5-inch HDD and Tables 1-1 and 1-2 list the specifications.
Figure 1-4 2.5-inch HDD
Table 1-1 2.5-inch HDD dimensions
Standard value
Parameter
Outline Width (mm) 69.85 69.85 70.1 max. dimensions Height (mm) 9.5 9.5 9.5 Depth (mm) 100.0 100 100 Weight (g) 99 max. 95 max. 95
Parameter
Outline Width (mm) 69.85 70.1 max. dimensions Height (mm) 9.5 9.5 Depth (mm) 100.0 100.0 Weight (g) 99 max 95
TOSHIBA
HDD2182B
TOSHIBA
HDD2183B
TOSHIBA
HDD2190B
Standard value
HITACHI
GBC0000F410
HITACHI
G8BC0000F610
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1.2 2.5-inch Hard Disk Drive 1 Hardware Overview
Table 1-2 2.5-inch HDD Specifications
Specification
Parameter
Storage size (formatted) 40GB 40GB 40GB Speed (RPM) 4,200
TOSHIBA
HDD2182B
TOSHIBA
HDD2190B
HITACHI
GBC0000F410
Data transfer speed 154.3-298.0
(Mb/s)
Interface transfer rate (MB/s)
Track density (Ktpi) 78.9 88.1 70.0 Average seek time
(Read) (ms) Start time (sec)
12 - 13 typ.
4 typ. 4 typ.
175.0-341.7 (Mbits/s)
100 max.
(Ultra DMA mode)
19.4-37.1 (MB/s)
3 typ
(Stand by)
Specification
Parameter
Storage size (formatted) 60GB 60GB Speed (RPM) 4,200 Data transfer speed 154.3-298.0 (Mb/s) 22.1-42.8
Interface transfer rate (MB/s)
TOSHIBA
HDD2183B
100
(Ultra DMA mode)
HITACHI
G8BC0000F610
(MB/s)
Track density (Ktpi) 78.9 70.0 Average seek time
(Read) (ms) Start time (sec)
12 13 typ.
4
3
(Stand by)

1 Hardware Overview 1.3 Keyboard

1.3 Keyboard
The keyboard is mounted 85 keys that consist of character key and control key, and in conformity with JIS. The keyboard is connected to membrane connector on the system board and controlled by the keyboard controller on the system board.
Figure1-5 is a view of the keyboard. See Appendix E about a layout of the keyboard.
Figure 1-5 Keyboard
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1.4 CD-RW/DVD-ROM Drive 1 Hardware Overview

1.4 CD-RW/DVD-ROM Drive
This drive corresponds CD/CD-ROM (12cm and 8cm), CD-R, CD-RW, DVD-ROM, DVD­R and DVD-RW drive and supports format of CD-DA, CD-ROM, Photo CD, CD-I, Video CD, Enhanced CD, CD-TEXT, DVD-ROM, DVD-R and DVD-Video.
Table 1-3 CD-RW/DVD-ROM drive dimensions
Parameter Standard value
Outline Width (mm) 128(Excluding projections) dimensions Height (mm) 12.7(Excluding projections) Depth (mm) 129(Excluding projections)
Table 1-4 CD-RW/DVD-ROM drive specifications
Item Specifications
Speed (MAX) CD ROM data (Read) 24x CAV CD R data (Write) 24x max. (ZCLV ) CD-RW data (Write) 4x (CLV) DVD-ROM data (Read) 8x max. CAV Date transfer speed CD-ROM mode 1 Max. 3,600KB/s DVD-ROM Max. 10,816KB/s PIO MODE 4 (Mode 0 ~ Mode 4) 16.6MB/s max. Multiword DMA transfer (mode 2) 16.6MB/s max. Ultra DMA 33.3MB/s max.

1 Hardware Overview 1.5 CD-ROM Drive

1.5 CD-ROM Drive
This drive corresponds to CD/CD-ROM (12cm and 8cm) disk and supports format of CD­DA, CD-ROM, Photo CD and Enhanced CD. This drive reads CD-ROM at maximum 24­speed.
Table 1-5 CD-ROM drive dimensions
Parameter
Outline Width (mm) 128(Excluding a front bezel) dimensions Height (mm) 12.7(Excluding a front bezel) Depth (mm) 129.4(Excluding an eject button)
Standard value
Table 1-6 CD-ROM drive specifications
Item Specifications
Speed (MAX) CD ROM data (Read) 24x (5,136rpm) Date transfer speed CD-ROM mode 1 1,545~3,600KB/s PIO MODE 4 (Mode 0 ~ Mode 4) 16.7MB/s max. Multiword DMA transfer (mode 0~mode 2) 16.7MB/s max. Ultra DMA 33.3MB/s max.
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1.6 DVD-Multi (CD-R/RW+DVD-RAM/R/RW) Drive 1 Hardware Overview

1.6 DVD- Multi (CD-R/RW+DVD-RAM/R/RW) Drive
This drive is a combination of CD-R/RW, DVD-R/RW and DVD-RAM Drive. It is full-size and runs either 12cm (4.72-inch) or 8cm (3.15-inch) DVD/CDs without an adaptor. This drive reads CD-ROM at maximum 24-speed, reads DVD-ROM at maximum 8-speed writes CD-R at maximum 16-speed, writes CD-RW at maximum 4-speed, writes DVD-R at maximum 2-speed, writes DVD-RW at maximum 1-speed,and writes DVD-RAM at maximum 2-speed.
The specifications for the DVD multi drive are described in table 1-7.
Table 1-7 DVD-ROM drive specifications
Item Specifications
ATAPI Burst (MB/sec) 33.3 (Ultra DMA mode 2)
16.6 (PIO Mode 0 to 4, Multi word DMA mode 0 to 2)
Average access time (ms) CD-ROM 150
DVD-ROM 180 Data buffer (MB) 2 Speed (Read)r CD-ROM 24x CAV
DVD-ROM 8x CAV Speed (Write) CD-R 16x max. (ZCLV)
CD-RW 4x (CLV)
DVD-R 1x, 2x
DVD-RW 1x (CLV)
DVD-RAM 2x (ZCLV) Supported Format CD: CD-DA
CD-ROM, CD-ROMXA
CD-R/W
CD-R
CD-I Ready
Photo-CD
Video CD
Cd-Extra(CD+)
CD-TEXT
DVD :DVD-ROM
DVD-R (3.9GB, 4.7GB)
DVD-Video
DVD-RW (Ver. 1.1)
DVD-RAM(4.7G, 2.6G, 9,4GB))

1 Hardware Overview 1.7 TFT Color Display

1.7 TFT Color Display
The TFT color display consists of a LCD module and FL inverter board.
1.7.1 LCD Module
The LCD module used for the TFT color display uses a backlight as the light source and can display images and characters of 262,144 colors with 1024×768 resolution. The video controller is incorporated into the North Bridge (M1644T) chip and can control both internal and external XGA-support displays simultaneously.
Table 1-8 and 1-9 show lists of the specifications.
Table 1-8 LCD module specifications (TMD-maid 12.1 TFT)
Item
Number of Dots Dot spacing (mm) 0.24(H) x 0.24(V)
Display range (mm) 245.76(H) x 184.32(V) Outline dimensions 261.0(w) x 199.0(H) x 5.0Max(D)
Specifications
G33C0000J110
1024×768
Table 1-9 LCD module specifications (LG Phillp-maid 12.1 TFT)
Item
Number of Dots Dot spacing (mm) 0.24(H) x 0.24(V)
Display range (mm) 245.76(H) x 184.32(V) Outline dimensions 261.0(w) x 198.0(H) x 5.0Max(D)
Specifications
G33C0000H110
1024×768
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1.7 TFT Color Display 1 Hardware Overview
1.7.2 FL Inverter Board
The FL inverter board supplies a high frequency current to illuminate the LCD module FL. Table 1-10 lists the FL inverter board specifications.
Table 1-10 FL inverter board specifications
Specifications
Item
G71C00011211
Input Voltage (V) DC 5
Voltage MAX (V) 750(MAX) Output Current MAX (mA) 6.0(MAX)
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