Toshiba satellite m30x Service Manual

Toshiba Personal Computer

Satellite M30X

Maintenance Manual

TOSHIBA CORPORATION

© 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 M30X 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 M30X 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 M30X Maintenance Manual

Preface

This maintenance manual describes how to perform hardware service maintenance for the Toshiba Personal Computer Satellite SATELLITE M30X, referred to as the M30X 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 M30X Maintenance Manual iii

The manual is divided into the following parts:

Chapter 1 Hardware Overview describes the M30X 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

iv Satellite M30X 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 M30X Maintenance Manual v

vi Satellite M30X Maintenance Manual

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 M30X 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

viii Satellite M30X 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 M30X 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

x Satellite M30X Maintenance Manual

Chapter 1

Hardware Overview

1 Hardware Overview

1-ii Satellite M30X Series Maintenance Manual

1 Hardware Overview

Chapter 1 Contents

1.1 Features...................................................................................................................... 1-1

1.2 System Unit................................................................................................................ 1-6

1.3 2.5-inch Hard Disk Drive......................................................................................... 1-11

1.4 Optical Device Drives..............................................................................................1-12

1.5 Power Supply ........................................................................................................... 1-12

1.6 Batteries ................................................................................................................... 1-14

1.6.1 Main Battery.............................................................................................. 1-14

1.6.2 RTC battery ............................................................................................... 1-15

Satellite M30X Series Maintenance Manual 1-iii

1 Hardware Overview

1-iv Satellite M30X Series Maintenance Manual

1.1 Features 1 Hardware Overview

1.1 Features

The Satellite M30X 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 Pentium M Dothan :1.5G/1.6G/1.7G/1.8G/2G/2.1G/1.4G(Trailing CMT 85Tj,

TDP=21W)

• Intel Pentium M Banias 1.5G/1.6G/1.7G

• Intel Celeron M Banias 1.3G/1.4G/1.5G

• Intel Celeron M Dothan 1.3G/1.4G/1.5G

• Micro FC-PGA package CPU

 Chipset

 Memory

• Intel 855GME

• Intel ICH4-M

• 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.

• VIA VT6301S for IEEE 1394 controller.

• Realtek RTL8100CL on board LAN.

• DDR333 specification compliant

• Two DDR SODIMM with 256M/512M/1G

• Max. upgrade to 2G

• Two SODIMM socket in the bottom side (one screw), support Toshiba accessory

SODIMM

Satellite M30X 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

• 8-cell Li-Ion battery pack w/up to 63.64Wh capacity(14.8V*4300mAh)

• Charging time 4~12hrs (System on)

• Charging time 4hrs max. (System off or suspend)

• Life cycle: 300 times with minimum reside capacity of 50% compare with original

capacity. Smart battery compliant.

 HDD

• 9.5mm, 2.5" HDD with 40/60/80GB(4200rpm)

• Design ready for 9.5mm, 2.5" HDD with 40/60/80GB(5400rpm )

• Design ready for 9.5mm, 2.5" HDD with 100GB(4200rpm)

• fixed HDD module but design for easy service replaceable

• PCI Bus Master Enhanced IDE.

• Ultra DMA 100 support.

• No 2

HDD support.

 Optical Device Drivers

• Fixed ODD module Bay with 12.7 mm devices.

• Designed for service easily.

• Combo:24x,24x,8x,24x(CD-R/CD-RW/DVD read/CD read).

• DVD+-R/+-RW: 24x/24x/8x/4x/8x/4x (CD-R write /CD-RW write /DVD-R

write/DVD-RW write/DVD+R write /DVD+RW write).

• DVD Super Multi: 16x/8x/4x/2x/2.4x/2.4x/2x (CD-R write /CD-RW write /DVD-R

write/DVD-RW write/DVD+R write /DVD+RW write.

/DVD-RAM write).

 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 101- or 102-key

enhanced keyboard. Includes one Windows

1-2 Satellite M30X Series Maintenance Manual

key and one Application key.

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”WXGA(1280 x 800),” Wide Screen LCD (16:10), Non-CSV/VA

version

• 15.4”WXGA(1280 x 800), Wide –Screen LCD (16:10), CSV(200-220nit)

• 15.0” XGA(1024*768) color LCD

 I/O Ports

• USB x 3 ports (V 2.0)(2 in rear side, 1 in right side)

• RGB; One DDC2b compliant 15 pin VGA port (Rear side)

• Microphone-in(Right side)

• Headphone-out jack x 1(Right side)

• DC-in jack(Rear side)

• RJ-11 jack for 56Kbps V.92 Modem (US/Canada), V.90 (Others) (Rear side)

• RJ-45 jack x 1 with LED indicator.(Rear side)

• Kensington lock(Rear side)

• TV-Out (S-Video, 4 pins type) x1. (Rear side)

• IEEE 1394 x1 (Right side)

• FIR *1 (Right side)(Combination BTO with FIR and PIO) (Covered by dummy

lans)

• VR for volume control(Right side) (Sound smaller : close to user , Large : away

from user)

• PIO; High speed bi-directional parallel port, 25 pins, ECP/EPP capability, (Rear

side)(Combination BTO with FIR and PIO)(Change core)

• 5 in 1 port, BTO (Right side)

• Card bus slot x1 (Right side)

• No PS/2

• No Serial 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

• ENE CB1410 controller for PCMCIA only,

or ENE CB714 controller for PCMCIA and 5 in one reader

Satellite M30X Series Maintenance Manual 1-3

1 Hardware Overview 1.1 Features

• ENE CB1410 and CB714 can be co-layout.

PC Card 95 supported with one type II Card sockets

• PCI card bus

• NO ZV-Port support

• With dummy card for PCMCIA

• 5 in 1 reader,BTO(Rubber cap ) (Support XD, SD, SM, MS, MS Pro and MMC)

• No SD-IO support

 Universal Serial Bus (USB)

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 M30X Series Maintenance Manual

1.1 Features 1 Hardware Overview

Satellite M30X Series Maintenance Manual 1-5

1 Hardware Overview 1.2 System Unit

1.2 System Unit

The system unit is composed of the following major components:

 Processor

• Intel Pentium M Dothan :1.5G/1.6G/1.7G/1.8G/2G/2.1G/1.4G(Trailing CMT 85Tj,

TDP=21W)

• Intel Pentium M Banias 1.5G/1.6G/1.7G

• Intel Celeron M Banias 1.3G/1.4G/1.5G

• Intel Celeron M Dothan 1.3G/1.4G/1.5G

• Micro FC-PGA package CPU

 System Logic

• Integrated DRAM controller

• Hub Interface to Intel ICH4-M

• Power Management Functions

 Keyboard Controller

• KB910 is use as keyboard controller and battery management unit

 Memory

• System DRAM

• Two JEDEC standard 200-pins DDR SO-DIMM memory support +2.5V

PC2700 256/512MB/1024MB.

• System & KB Combine ROM BIOS

• 512KB Flash ROM

 Video Subsystem (Intel 855GME)

• UMA VGA Memory up to 64MB

• 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

1-6 Satellite M30X Series Maintenance Manual

1.2 System Unit 1 Hardware Overview

• 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.

Satellite M30X Series Maintenance Manual 1-7

1 Hardware Overview 1.2 System Unit

− 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

1-8 Satellite M30X Series Maintenance Manual

1.2 System Unit 1 Hardware Overview

• – Contain two 512-byte buffer to maximize the transfer speed

• – Support Traffic LED Light

• – Support Over Current Protection

 ENE CB1410 Card Bus Host Adapter

• Cardbus Controller Datasheet

• 3.3V operation with 5V tolerance

• 208-pin LQFP package or 209-ball LFBGA for CB1420 dual slot Cardbus

controller

• 144-pin LQFP or 144-ball LFBGA package for CB1410 single slot Cardbus

controller

• Compliant with

• PCI Local Bus Specification, Revision 2.2

• PCI Bus Power Management Interface Specification, Revision 1.1

• PCI Mobile Design Guide, Version 1.1

• Advanced Configuration and Power Interface Specification, Revision 1.0

• PC 99 System Design Guide

• PC Card Standard 8.0

• Interrupt configuration

• Supports parallel PCI interrupts

• Supports parallel IRQ and parallel PCI interrupts

• Supports serialized IRQ and parallel PCI interrupts

• Supports serialized IRQ and PCI interrupts

• Power Management Control Logic

• Supports CLKRUN# protocol

• Supports SUSPEND#

• Supports PCI PME# from D3, D2, D1 and D0

• Supports PCI PME# from D3Cold

• Supports D3STATE# (CB1410 only)

• Power Switch Interface

• CB1420 supports serial 3 wire power switch interface.

• CB1410 supports parallel 4 wire power switch interface.

• Misc Control Logic

Satellite M30X Series Maintenance Manual 1-9

1 Hardware Overview 1.2 System Unit

• - Supports serial EEPROM interface

• - Supports socket activity LED

• - Supports 5 GPIOs and GPE#

• - Supports standard Zoomed Video Port

• - Supports SPKROUT, CAUDIO and RIOUT#

• - Supports PCI LOCK#

1-10 Satellite M30X Series Maintenance Manual

1.4 Removable Drives 1 Hardware Overview

1.3 2.5-inch Hard Disk Drive

The internal HDD is a random access non-volatile storage device. It has a non-removable 2.5inch magnetic disk and mini-Winchester type magnetic heads. The computer supports a 40 / 60 / 80GB/100G HDD.

Satellite M30X Series Maintenance Manual 1-11

1 Hardware Overview 1.5 Power Supply

1.4 Optical device Drives

• CD-RW/DVD-ROM drive

• DVD+-R/+-RW drive

• DVD Super Multi ddrive

1.5 Power 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

1-12 Satellite M30X Series Maintenance Manual

1.5 Power Supply 1 Hardware Overview

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.

• Orange = The computer is quick-charging the battery / The battery is low.

6. Power ON/OFF sequence

When power is turned on or off, the EC starts the power on or off sequence.

• SQ0-4 = power ON sequence

• SQ5-B = power OFF sequence

7. Battery charging control

The EC controls the following.

• The quick charging ON/OFF

• The detection of full charge

8. Detection of the low battery

The EC detects the low battery point by the gas gauge.

• LB10M = The system will be driven by the battery for 12 more minutes.

• LB0 = The battery won't be able to drive the system after 3 minutes.

• LB1 = The battery can drive the system only during the suspend process.

• LB2 = The battery cannot drive the system.

9. New battery installation

When a new battery is installed, the EC communicates with the E read information of the newly installed battery.

10. Battery capacity calculation

The EC reads battery remaining and percentage capacity from the battery through SMBus.

PROM in the battery to

Satellite M30X Series Maintenance Manual 1-13

1 Hardware Overview 1.6 Batteries

1.6 Batteries

The computer has two types of battery:

 Main battery pack (18650 size)

 RTC battery

The removable main battery pack is the computer’s main power source when the AC adaptor is not attached.

The battery specifications are listed in the table below.

Battery name Material Output voltage Capacity

Main battery Lithium-Ion 14.8 V 4300mAH

RTC battery Lithium 3.3 V 15 mAh

1.6.1 Main Battery

Battery charging is controlled by a power supply microprocessor that is mounted on the system board. The power supply microprocessor controls whether the charge is on or off and detects a full charge when the AC adaptor and battery are attached to the computer. The system charges the battery using quick charge or trickle charge.

 Quick Battery Charge

When the AC adaptor is attached, there are two types of quick charge: quick charge when the system is powered off and normal charge when the system is powered on.

The times required for charges are listed in the table below.

Status Charging time

Normal charge (power on) 12 hours or longer

Quick charge (power off) About 4 hours

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1.6 Batteries 1 Hardware Overview

NOTES

1. The time required for normal charge is affected by the amount of power the system is consuming. Use of the fluorescent lamp and frequent disk access diverts power and lengthens the charge time.

2. Using quick charge, the power supply microprocessor automatically stops the charge after eight hours regardless of the condition of the battery. Overcharging could cause the battery to explode.

If any of the following occurs, the battery quick charge process stops.

1. The battery becomes fully charged.

2. The AC adaptor or battery is removed.

3. The battery or output voltage is abnormal.

4. The battery temperature is abnormal.

5. The battery SMBus communication fails.

6. The battery cell is bad.

 Detection of full charge

A full charge is detected from the battery pack through SMBus when the battery is charging.

1.6.2 RTC battery

The RTC battery provides power to keep the current date, time and other setup information in memory while the computer is turned off. The table below lists the charging time and data preservation period of the RTC battery. The RTC battery is charged by the adaptor or main battery, while the computer is powered on.

Status Time

Charging Time (power on) About 48 hours

Data preservation period (full charge) 2 month

Satellite M30X Series Maintenance Manual 1-15

1 Hardware Overview 1.6 Batteries

1-16 Satellite M30X Series Maintenance Manual

+ 181 hidden pages

Toshiba satellite m30x Service Manual

SAFETY PRECAUTIONS

Conventions

Acronyms

Table of Contents

1.3 2.5-inch Hard Disk Drive

1.4 Optical device Drives

Main battery Lithium-Ion 14.8 V 4300mAH