P3 International M375C User manual

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Notebook Computer
M375C/M385C
Service Manual

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Notice
The company reserves the right to revise this publication or to change its contents without notice. Information contained
herein is for reference only and does not constitute a commitment on the part of the manufacturer or any subsequent ven-
dor. They assume no responsibility or liability for any errors or inaccuracies that may appear in this publication nor are
they in anyway responsible for any loss or damage resulting from the use (or misuse) of this publication.
This publication and any accompanying software may not, in whole or in part, be reproduced, translated, transmitted or
reduced to any machine readable form without prior consent from the vendor, manufacturer or creators of this publica-
tion, except for copies kept by the user for backup purposes.
Brand and product names mentioned in this publication may or may not be copyrights and/or registered trademarks of
their respective companies. They are mentioned for identification purposes only and are not intended as an endorsement
of that product or its manufacturer.
Version 1.0
July 2003
Trademarks
Intel®and Pentium®are registered trademarks of Intel Corporation.
Windows®is a registered trademark of Microsoft Corporation.
Other brand and product names are trademarks and./or registered trademarks of their respective companies.

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About this Manual
This manual is intended for service personnel who have completed sufficient training to undertake the maintenance and
inspection of personal computers.
It is organized to allow you to look up basic information for servicing and/or upgrading components of the M375C/
M385C series notebook PC.
The following information is included:
Chapter 1, Introduction, provides general information about the location of system elements and their specifications.
Chapter 2, Disassembly, provides step-by-step instructions for disassembling parts and subsystems and how to upgrade
elements of the system.
Appendix A, Part Lists
Appendix B, Schematic Diagrams

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IMPORTANT SAFETY INSTRUCTIONS
When using your telephone equipment, basic safety precautions should always be followed to reduce the risk of fire, elec-
tric shock and injury to persons, including the following:
1. Do not use this product near water, for example near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet
basement or near a swimming pool.
2. Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of elec-
trical shock from lightning.
3. Do not use the telephone to report a gas leak in the vicinity of the leak.
4. Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a fire. They may
explode. Check with local codes for possible special disposal instructions.
5. This product is intended to be supplied by a Listed Power Unit (DC Output 20V, 3.25A).
CAUTION
Always disconnect all telephone lines from the wall outlet before servicing or disassembling this equipment.
TO REDUCE THE RISK OF FIRE, USE ONLY NO. 26 AWG OR LARGER,
TELECOMMUNICATION LINE CORD

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Instructions for Care and Operation
The notebook computer is quite rugged, but it can be damaged. To prevent this, follow these suggestions:
1. Don’t drop it, or expose it to shock. If the computer falls, the case and the components could be damaged.
2. Keep it dry, and don’t overheat it. Keep the computer and power supply away from any kind of heating element. This
is an electrical appliance. If water or any other liquid gets into it, the computer could be badly damaged.
3. Follow the proper working procedures for the computer. Shut the computer down properly and don’t forget to save
your work. Remember to periodically save your data as data may be lost if the battery is depleted.
Do not expose the computer
to any shock or vibration.
Do not place it on an unstable
surface.
Do not place anything heavy
on the computer.
Do not expose it to excessive
heat or direct sunlight.
Do not leave it in a place
where foreign matter or mois-
ture may affect the system.
Don’t use or store the com-
puter in a humid environment.
Do not place the computer on
any surface which will block
the vents.
Do not turn off the power
until you properly shut down
all programs.
Do not turn off any peripheral
devices when the computer is
on.
Do not disassemble the com-
puter by yourself.
Perform routine maintenance
on your computer.

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4. Avoid interference. Keep the computer away from high capacity transformers, electric motors, and other strong mag-
netic fields. These can hinder proper performance and damage your data.
5. Take care when using peripheral devices.
Power Safety
The computer has specific power requirements:
• Only use a power adapter approved for use with this computer.
• Your AC adapter may be designed for international travel but it still requires a steady, uninterrupted power supply. If you are
unsure of your local power specifications, consult your service representative or local power company.
• The power adapter may have either a 2-prong or a 3-prong grounded plug. The third prong is an important safety feature; do
not defeat its purpose. If you do not have access to a compatible outlet, have a qualified electrician install one.
• When you want to unplug the power cord, be sure to disconnect it by the plug head, not by its wire.
• Make sure the socket and any extension cord(s) you use can support the total current load of all the connected devices.
• Before cleaning the computer, make sure it is disconnected from any external power supplies.
Use only approved brands of
peripherals.
Unplug the power cord before
attaching peripheral devices.
Do not plug in the power
cord if you are wet.
Do not use the power cord if
it is broken.
Do not place heavy objects
on the power cord.

Power Safety
Warning
Before you undertake
any upgrade proce-
dures, make sure that
you have turned off the
power, and discon-
nected all peripherals
and cables (including
telephone lines). It is
advisable to also re-
move your battery in
order to prevent acci-
dentally turning the
machine on.

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Battery Precautions
• Only use batteries designed for this computer. The wrong battery type may explode, leak or damage the computer.
• Recharge the batteries using the notebook’s system. Incorrect recharging may make the battery explode.
• Do not try to repair a battery pack. Refer any battery pack repair or replacement to your service representative or qualified service
personnel.
• Keep children away from, and promptly dispose of a damaged battery. Always dispose of batteries carefully. Batteries may explode
or leak if exposed to fire, or improperly handled or discarded.
• Keep the battery away from metal appliances.
• Affix tape to the battery contacts before disposing of the battery.
• Do not touch the battery contacts with your hands or metal objects.

Battery Disposal
The product that you have purchased contains a rechargeable battery. The battery is recyclable. At the end of
its useful life, under various state and local laws, it may be illegal to dispose of this battery into the municipal
waste stream. Check with your local solid waste officials for details in your area for recycling options or proper
disposal.
Caution
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommend-
ed by the manufacturer. Discard used battery according to the manufacturer’s instructions.

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Related Documents
You may also need to consult the following manual for additional information:
User’s Manual on CD
This describes the notebook PC’s features and the procedures for operating the computer and its ROM-based setup pro-
gram. It also describes the installation and operation of the utility programs provided with the notebook PC.

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Contents
Introduction ..............................................1-1
Overview .........................................................................................1-1
System Specifications .....................................................................1-2
Processor Options ............................................................................1-2
Core Logic .......................................................................................1-2
Structure ..........................................................................................1-2
Security ............................................................................................1-2
Memory ...........................................................................................1-2
BIOS ................................................................................................1-2
LCD .................................................................................................1-2
Display ............................................................................................1-2
Storage .............................................................................................1-2
PC Card ...........................................................................................1-3
Audio ...............................................................................................1-3
Keyboard .........................................................................................1-3
Interface ...........................................................................................1-3
Communication ...............................................................................1-3
Power Management .........................................................................1-3
Power ...............................................................................................1-3
Indicators .........................................................................................1-3
Buttons ............................................................................................1-4
Environmental Spec ........................................................................1-4
Physical Dimensions .......................................................................1-4
Weight .............................................................................................1-4
Optional ...........................................................................................1-4
External Locator - Top View with LCD Panel Open ......................1-5
External Locator - Front & Left Side Views ...................................1-6
External Locator - Right Side & Rear Views ..................................1-7
External Locator - Bottom View .....................................................1-8
Disassembly ...............................................2-1
Overview ......................................................................................... 2-1
Maintenance Tools .......................................................................... 2-2
Connections .................................................................................... 2-2
Maintenance Precautions ................................................................ 2-3
Disassembly Steps .......................................................................... 2-4
Removing the Battery ..................................................................... 2-5
Removing the Hard Disk Drive and Wireless LAN ....................... 2-6
Removing the System Memory (RAM) ......................................... 2-8
Removing the CD Device ............................................................... 2-9
Removing the Modem .................................................................. 2-10
Removing the Processor ............................................................... 2-11
Part Lists ..................................................A-1
Part List Illustration Location ........................................................ A-2
Top (M375C) ................................................................................. A-3
Bottom (M375C) ........................................................................... A-4
LCD (M375C) ............................................................................... A-5
Card Reader (M375C) ................................................................... A-6
CD-ROM Drive - QSI-TEAC (M375C) ........................................ A-7
CD-RW Drive - TEAC (M375C) .................................................. A-8
Combo Drive - TEAC (M375C) .................................................... A-9
DVD-ROM Drive - TEAC-TOSHIBA (M375C) ........................ A-10
DVD-RW Drive - TOSHIBA (M375C) ...................................... A-11
Top (M385C) ............................................................................... A-12
Bottom (M385C) ......................................................................... A-13
LCD (M385C) ............................................................................. A-14
Card Reader (M385C) ................................................................. A-15
CD-ROM Drive - QSI-TEAC (M385C) ...................................... A-16
CD-RW Drive - TEAC (M385C) ................................................ A-17

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Combo Drive - TEAC (M385C) ..................................................A-18
DVD-ROM Drive - TEAC-TOSHIBA (M385C) ........................A-19
DVD-RW Drive - TOSHIBA (M385C) ....................................... A-20
Schematic Diagrams................................. B-1
System Block Diagram ................................................................... B-2
Socket 479 - 1 of 2 ......................................................................... B-3
Socket 479 - 2 of 2 ......................................................................... B-4
Montara GM-1 ................................................................................ B-5
Montara GM-2 ................................................................................ B-6
Montara GM-3 ................................................................................ B-7
DDRAM ......................................................................................... B-8
DDR Termination ........................................................................... B-9
Clock Generator ........................................................................... B-10
LVDS; CRT .................................................................................. B-11
ICH4-1 (1 of 3) ............................................................................. B-12
ICH4-2 (2 of 3) ............................................................................. B-13
ICH4-3 (3 of 3) ............................................................................. B-14
USB 2.0, Wireless LAN ............................................................... B-15
MDC, BT, CCT ............................................................................ B-16
HDD, CDROM ............................................................................. B-17
LAN RTL8100BL ........................................................................ B-18
ROM, W517 ................................................................................. B-19
TI1394 (TSB43AB21) .................................................................. B-20
Hitachi H8S .................................................................................. B-21
CON ............................................................................................. B-22
Audio Codec ALC201 .................................................................. B-23
PCMCIA (ENE1410) ................................................................... B-24
PCMCIA Socket ........................................................................... B-25
AC IN; Power Button ................................................................... B-26
CH7011; TV-Out .......................................................................... B-27
V_CORE ...................................................................................... B-28
Charger .........................................................................................B-29
Multi-Function Board ...................................................................B-30

Introduction
Overview 1 - 1
1.Introduction
1: Introduction
Overview
This manual covers the information you need to service or upgrade the M375C/M385C series notebook computer. Infor-
mation about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information
about drivers (e.g. VGA & audio) is also found in User’s Manual. That manual is shipped with the computer.
Operating systems (e.g. DOS, Windows 9x, Windows NT 4.0, Windows 2000, Windows XP, OS/2 Warp, UNIX, etc.) have
their own manuals as do application software (e.g. word processing and database programs). If you have questions about
those programs, you should consult those manuals.
The M375C/M385C series notebook is designed to be upgradeable. See “Disassembly” on page 2 - 1 for a detailed de-
scription of the upgrade procedures for each specific component. Please note the warning and safety information indi-
cated by the “” symbol.
The balance of this chapter reviews the computer’s technical specifications and features.

Introduction
1 - 2 System Specifications
1.Introduction
System Specifications
Processor Options
• Mobile Intel Pentium 4 Processor-M
- (478-pin) uFC-PGA package
(µ0.13) 0.13 Micron Process Technology,
- 1.3/ 1.4/ 1.5/ 1.6/ 1.7 GHz
Core Logic
• Intel 855GM + ICH4-M
Structure
• PC2001 Compliant
• PCI 2.2 Compliant
• ACPI 2.0 Compliant
Security
• Security (Kensington® Type) Lock Slot
• BIOS Password
Memory
• Two 200-pin SODIMM sockets, supporting 200/266 MHz
DDR modules
• Memory expandable up to 1GB (128/ 256/ 512 MB DDR
modules)
BIOS
• One 512KB Flash ROM
• Insyde BIOS, Plug and Play (1.0a)
LCD
• 15.4" WXGA Flat Panel TFT
16:10 Aspect Ratio
1280*800 Resolution
Display
• Dynamic Video Memory Technology
• 128 bit 2D/3D Graphics Engine
• Motion Compensation for DVD Accelerator
• Fully DirectX 7/8 Compliant Graphics Engine
• Supports VESA DDCI, DDC2B and DDC 3.0 Specifica-
tions
Storage
• One changeable 12.7mm(h) Optical Drive
• Easy changeable 2.5" 9.5 mm (h) HDD
Supports Master Mode IDE
Supports LBA Mode
Supports PIO Mode 4
ATA-33/66/100

Video Memory
The system allocates or “shares” a portion of system
memory for video use. “Shared” memory is user-con-
figurable via the SCU. The default setting is set to
8MB.

Introduction
System Specifications 1 - 3
1.Introduction
PC Card
• One Type-II PCMCIA 3.3V/5V Socket
Audio
• AC’97 2.2 Compliant
• Advanced Wavetable Synthesizer
• DirectSound™ 3D Accelerator
• Full-duplex
• S/P DIF Digital Output
• Built-In Microphone
• 5 Built-In Speakers
Keyboard
• A4 Size Win 95 Keyboard (3mm travelling)
• Built-In TouchPad with Scrolling Function
Interface
• Two USB 2.0 Ports
• One USB 1.1 Port
• One Mini- IEEE 1394 Port
• One External CRT Monitor Port
• One Headphone-Out Jack
• One Microphone-In Jack
• One S/P DIF Output Jack
• One TV-Out Jack
• One RJ-11 Jack for Plug & Play Fax/Modem
• One RJ-45 Jack for 10M/ 100M Fast Ethernet
• One DC-in jack
Communication
• 56K Plug & Play Fax/Modem V.90/92 Compliant
• 10M/100M (Max) Fast Ethernet (IEEE 802.3 and 802.3u
Standard Compliant)
• PC Camera with USB Interface (Optional)
• Intel PRO Wireless LAN 2100 (802.11b) Module with PCI
interface
• Bluetooth 1.1 with MDC Interface (Optional)
Power Management
• Supports ACPI 2.0
• Power Button as Sleep/Resume Key
• Supports Hibernate Mode
• Supports Standby Mode
• Supports Battery Low Sleep Mode
• Supports Resume From Modem Ring
• Supports Wake on LAN
Power
• Full Range AC Adapter
AC-Input 100~240V, 47~63Hz
DC Output 20V, 3.25A (65W)
• One 6 Cell, 48 Watt, Smart Lithium-Ion Battery Pack -
Approx 3 Hours Battery Life
• One 12 Cell, 96 Watt, Smart Lithium-Ion Battery Pack
(Optional) - Approx 6 Hours battery life
Indicators
• LED Indicators (Power/Suspend, Battery, HDD/CD-ROM,
Num Lock, Caps Lock, Scroll Lock, E-Mail, Wireless
LAN & Bluetooth)

Introduction
1 - 4 System Specifications
1.Introduction
Buttons
•E-Mail
• Internet Browser
•Power
• Module On/Off Button
Environmental Spec
• Temperature
Operating: 5°C ~ 35°C
Non-Operating: -20°C ~ 60°C
• Relative Humidity
Operating: 20% ~ 80%
Non-Operating: 10% ~ 90%
Physical Dimensions
• 360mm (w) * 273mm (d) * 27.5mm (h) Min
Weight
• 2.8kg with 6 cell Battery
Optional
• Standard Smart Lithium-Ion (48Watt) Battery Pack
• Bluetooth 1.1 + MDC Module
• Extended Smart Lithium-Ion (96Watt) Battery Pack
•PC Camera with USB Interface

Introduction
External Locator - Top View with LCD Panel Open 1 - 5
1.Introduction
External Locator - Top View with LCD Panel Open Figure 1
Top View
1. Optional Built-In
PC Camera
2. LCD
3. LED Power &
Communication
Indicators
4. Speakers
5. Close Cover
Switch
6. LED Status
Indicators
7. Power Button
8. Keyboard
9. Built-In
Microphone
10. TouchPad and
Buttons
11. Hot-Key Buttons
2
6
3
4
1
7
10
4
8
5
11
4
4
7
6
9

Introduction
1 - 6 External Locator - Front & Left Side Views
1.Introduction
External Locator - Front & Left Side Views
Figure 2
Front View
1. LCD Latches
2. Hot-Key Buttons 1
2
1
Figure 3
Left Side View
1. Vent
2. External Monitor
(CRT) Port
3. S-Video-Out Port
4. RJ-11 Phone Jack
5. RJ-45 LAN Jack
6. 2 * USB 2.0 Ports
7. Mini-IEEE 1394
Port
8. PC Card Slot
9. PC Card Slot Eject
Button
3 41 52 6 7
89

Introduction
External Locator - Right Side & Rear Views 1 - 7
1.Introduction
External Locator - Right Side & Rear Views
5
1 2 3 4
Figure 4
Right Side View
1. Microphone-In
Jack
2. Headphone-Out
Jack
3. S/P DIF Out Port
4. CD Device Bay
5. DC-In Jack
Figure 5
Rear View
1. Security Lock Slot
2. 1 * USB 1.1 Port
3. Vent
1 32

Introduction
1 - 8 External Locator - Bottom View
1.Introduction
External Locator - Bottom View
Figure 6
Bottom View
1. Fan Intakes
2. Battery
3. CPU Cover
4. Hard Disk, RAM,
WLAN &
Bluetooth
Module Cover
5. CD Device
Removal Cover
6. Sub-Woofer
1
2
4
5
3
1
1
6