Clevo L295T Manuel utilisateur
Preface
I
Preface
LCD Computer
L295T Series
Service Manual
Preface
II
Preface
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
November 2005
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.
Preface
III
Preface
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 computer.
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
Preface
IV
Preface
Related Documents
You may also need to consult the following manual for additional information:
User’s Manual on CD
This describes the computer’s features and the procedures for operating the computer and its ROM-based setup program.
It also describes the installation and operation of the utility programs provided with the computer.
Preface
V
Preface
Contents
Introduction ..............................................1-1
Overview .........................................................................................1-1
System Specifications .....................................................................1-2
External Locator - Front View ........................................................1-5
External Location - Left & Right Side Views .................................1-6
External Locator - Rear View .........................................................1-7
Mainboard Overview - Top .............................................................1-8
Key Parts ........................................................................................1-8
Mainboard Overview - Bottom .......................................................1-9
Key Parts .........................................................................................1-9
Mainboard Overview - Top ...........................................................1-10
Cable Connectors and Switches ....................................................1-10
Mainboard Overview - Bottom .....................................................1-11
Cable Connectors and Switches ....................................................1-11
Disassembly ...............................................2-1
Overview .........................................................................................2-1
Maintenance Tools ..........................................................................2-2
Connections .....................................................................................2-2
Maintenance Precautions .................................................................2-3
Disassembly Steps ...........................................................................2-4
Removing the Hard Disk Drive Assembly ......................................2-5
Removing the LCD Back Cover .....................................................2-6
Removing the System Memory .......................................................2-7
Removing the CPU ..........................................................................2-8
Removing the I/O Bracket .............................................................2-10
Removing the Modem ...................................................................2-11
Removing the Floppy Disk Drive Assembly ................................2-12
Removing the Mini PCI I/F Module .............................................2-13
Removing the Optical Device Assembly ......................................2-14
Part Lists ..................................................A-1
Part List Illustration Location ........................................................ A-2
L295T - Base ................................................................................. A-3
L295T - Bracket ............................................................................. A-4
L295T - Front ................................................................................ A-5
L295T - Toshiba DVD-RW ........................................................... A-6
L295T - FDD ................................................................................. A-7
L295T - HDD ................................................................................ A-8
Schematic Diagrams.................................B-1
System Block Diagram ...................................................................B-2
CPU Prescott - 1 of 2 ......................................................................B-3
CPU Prescott - 2 of 2 ......................................................................B-4
Clock Generator ..............................................................................B-5
MCH Power ....................................................................................B-6
MCH Host .......................................................................................B-7
MCH AGP ......................................................................................B-8
MCH Memory ................................................................................B-9
MCH Memory Termination ..........................................................B-10
DDR RIMM ..................................................................................B-11
DVO Chrontel CH7107A .............................................................B-12
LCD Connector .............................................................................B-13
CRT & USB ..................................................................................B-14
ICH5 (Power, LPC, Clock, SMbus) .............................................B-15
ICH5 (PCI, IDE, UHB, USB, LAN) ............................................B-16
Thermal & Fan Controller ............................................................B-17
Cardbus PCI1520 ..........................................................................B-18
IEEE 1394 .....................................................................................B-19
Cardbus Slot & Mini PCI .............................................................B-20
LAN RTL8100CL/8110SL ...........................................................B-21
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Preface
IDE Connector & Firmware Hub .................................................B-22
SIO W83627HF ............................................................................B-23
Serial & Parallel Port ....................................................................B-24
CODEC ........................................................................................B-25
Amplifiers & Inverter Connector .................................................B-26
Power 1 .........................................................................................B-27
Power 2 .........................................................................................B-28
Power 3 .........................................................................................B-29
Power 4 .........................................................................................B-30
Introduction
Overview 1 - 1
1.Introduction
1: Introduction
Overview
This manual covers the information you need to service or upgrade the L295T LCD computer. Information about oper-
ating 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 L295T LCD computer is designed to be upgradeable. See “Disassembly” on page 2 - 1 for a detailed description of
the upgrade procedures for each specific component. Please note the warning and safety information indicated 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
Feature Specification
Processor Types Intel® Pentium® 4 630/ 640/ 650 Processor with HT
Technology
LGA775 Package (775-pin)
(90nm) 90 Nanometer Process Technology, 2MB On-Die
L2 Cache & 800MHz Front Side Bus - 3.0/ 3.2/ 3.4 GHz
Intel® Pentium® 4 520/ 530/ 540/ 550 Processor with HT
Technology
LGA775 Package (775-pin)
(90nm) 90 Nanometer Process Technology, 1MB On-Die
L2 Cache & 800MHz Front Side Bus - 2.8/ 3.0/ 3.2/ 3.4
GHz
Intel® Pentium® 4 520J/ 530J/ 540J/ 550J Processor with
HT Technology
LGA775 Package (775-pin)
(90nm) 90 Nanometer Process Technology, 1MB On-Die
L2 Cache & 800MHz Front Side Bus - 2.8/ 3.0/ 3.2/ 3.4
GHz
Intel® Celeron® D 325J/ 330J/ 335J/ 340J/ 345J/
Processor
LGA775 Package (775-pin)
(90nm) 90 Nanometer Process Technology, 256K On-Die
L2 Cache & 533MHz Front Side Bus - 2.53/ 2.66/ 2.8/
2.93/ 3.06 GHz
Core Logic Intel 865GV + ICH5
LCD Options 15.0" XGA Flat Panel TFT (1024*768)
Security Security (Kensington® Type) Lock Slot BIOS Password
Latest Specification Information
The specifications listed in this Appendix are correct at the time of going to press. Certain items (particularly processor types/speeds
and CD/DVD device types) may be changed or updated due to the manufacturer's release schedule. Check with your service center for
details.
Table 1 - 1
System
Specifications
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