EUROCOM L295P A, L297P B Service Manual

Preface

LCD Computer L295P/L297P Series Service Manual

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 vendor. 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 publication, 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 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.

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 Appendix C, Clock Ratios Appendix D, Jumper Settings

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

Contents

Introduction ..............................................1-1

Overview .........................................................................................1-1

Model Differences ...........................................................................1-2

System Specifications L295P/L297P .............................................1-3

External Locator - Front View ........................................................1-6

External Location - Left & Right Side Views ................................. 1-7

External Locator - Rear View .........................................................1-8

Mainboard Overview - Top ............................................................. 1-9

Key Parts ........................................................................................1-9

Mainboard Overview - Bottom .....................................................1-10

Key Parts .......................................................................................1-10

Mainboard Overview - Top ........................................................... 1-11

Cable Connectors and Switches .................................................... 1-11

Mainboard Overview - Bottom .....................................................1-12

Cable Connectors and Switches .................................................... 1-12

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 CD Device Assembly (L295P Series) ................... 2-14

Removing the CD Device Assembly (L297P Series) ................... 2-15

Part Lists ..................................................A-1

Part List Illustration Location ........................................................ A-2

L295PA - Base ............................................................................... A-3

L295PA - Bracket .......................................................................... A-4

L295PA - Front .............................................................................. A-5

L295PA - Card Reader Module ..................................................... A-6

L295PA - Combo ........................................................................... A-7

L295PA - Toshiba DVD ................................................................ A-8

L295PA - FDD .............................................................................. A-9

L295PA - HDD ............................................................................ A-10

L295PA - Video Capture Module ................................................ A-11

L295PB - Base ............................................................................. A-12

L295PB - Bracket ........................................................................ A-13

L295PB - Front ............................................................................ A-14

L295PB - Card Reader Module ................................................... A-15

L295PB - Combo ......................................................................... A-16

L295PB - Toshiba DVD .............................................................. A-17

L295PB - FDD ............................................................................. A-18

L295PB - HDD ............................................................................ A-19

L295PB - Video Capture Module ................................................ A-20

L295PT - Base ............................................................................. A-21

L295PT - Bracket ........................................................................ A-22

L295PT - Front ............................................................................ A-23

L295PT - Card Reader Module ................................................... A-24

L295PT - Combo ......................................................................... A-25

L295PT - Toshiba DVD .............................................................. A-26

L295PT - FDD ............................................................................. A-27

L295PT - HDD ............................................................................ A-28

Preface

L295PT - Video Capture Module .................................................A-29

L297PB - Base .............................................................................A-30

L297PB - Bracket ......................................................................... A-31

L297PB - Front .............................................................................A-32

L297PB - Card Reader Module .................................................... A-33

L297PB - Combo .........................................................................A-34

L297PB - DVD .............................................................................A-35

L297PB - CD-ROM .....................................................................A-36

L297PB - CDRW .........................................................................A-37

L297PB - FDD .............................................................................A-38

L297PB - HDD .............................................................................A-39

L297PB - Video Capture Module ................................................A-40

L297PD - Base .............................................................................A-41

L297PD - Bracket .........................................................................A-42

L297PD - Front ............................................................................A-43

L297PD - Card Reader Module ...................................................A-44

L297PD - Combo .........................................................................A-45

L297PD - DVD ............................................................................A-46

L297PD - CD-ROM .....................................................................A-47

L297PD - CDRW .........................................................................A-48

L297PD - FDD .............................................................................A-49

L297PD - HDD ............................................................................A-50

Schematic Diagrams.................................B-1

System Block Diagram ................................................................... B-2

Northwood - 1 of 2 ......................................................................... B-3

Northwood - 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 RTL8100BL ........................................................................B-21

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

Clock Ratios............................................. C-1

System Memory Clock Ratios ........................................................C-1

Jumper Settings .......................................D-1

Clean CMOS Jumper Settings (Jumper J5) ................................... D-1

Introduction

Overview 1 - 1

1.Introduction

1: Introduction

Overview

This manual covers the information you need to service or upgrade the L295P/L297P LCD computer. Information 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 L295P/L297P 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 Model Differences

1.Introduction

Model Differences

The differences between the model types are indicated in the table and pictures below.

Feature/Model L295P(A/B/T) Series L297P(B/D) Series

LCD Size 15” XGA 17” SXGA

CD Device Location Left Side Front

Dimensions 369mm (H) * 384mm (W) * 188mm (D) 395mm (H) * 418mm (W) * 179mm (D)

Weight 8.9 Kg 10.2 Kg

Designs Supported (Additional Colors Also supported)

Table 1 - 1

Model

Specifications

Introduction

System Specifications L295P/L297P 1 - 3

1.Introduction

System Specifications L295P/L297P

Feature Specifications L295P (A/B/T) Specifications L297P (B/D)

Processor Types Intel Pentium®4 with Hyper-Threading Technology (0.13 micron) - 2.4/ 2.6/ 2.8/ 3.0 GHz (800 MHz Front Side Bus)

CPU Package - (478-pin) FC-PGA2

512KB L2 Cache (on die)

Intel Pentium®4 with Hyper-Threading Technology (0.13 micron) - 3.06 GHz (533 MHz Front Side Bus)

CPU Package - (478-pin) FC-PGA2

512KB L2 Cache (on die)

Intel Pentium®4 (0.13 micron) - 2.26/ 2.4/ 2.53/ 2.66/ 2.8 GHz (533 MHz Front Side Bus)

CPU Package - (478-pin) FC-PGA2

512KB L2 Cache (on die)

Intel Celeron® (0.13 micron) - 2.0/ 2.1/ 2.2/ 2.3/ 2.4 GHz (400 MHz front side bus)

CPU Package - (478-pin) FC-PGA2

128KB L2 Cache (on die)

Intel Celeron® (0.18 micron) - 1.7/ 1.8 GHz (400 MHz front side bus)

CPU Package - (478-pin) FC-PGA2

128KB L2 Cache (on die)

Core Logic Intel Chipset 865-G

Security BIOS Password

Security Lock Slot for Kensington-Type Locks

Memory Two DIMM Sockets Supporting DDR 266/ 333/ 400 MHz

Expandable Memory up to 2GB (128M/256M/512M/1GB DDR DIMM modules)

BIOS 4MB Flash ROM Phoenix BIOS

Supports Plug and Play, ACPI 2.0

Intel OSB Support

LCD Color TFT 15" XGA LCD Panel (supporting a resolution

of 1024*768 256K colors)

Color TFT 17" SXGA LCD Panel (supporting a resolution

of 1280*1024 16 million colors)

Table 1 - 2

L295P/L297P

System

Specifications

Introduction

1 - 4 System Specifications L295P/L297P

1.Introduction

Video 865-G Integrated Chipset

Video RAM - Shared Memory Architecture (SMA) Supporting DDR Video Shared Memory up to 64MB

2D Hardware Accelerator (for block level transfers of data integrating an extensive set of instructions for 3D)

Audio AC97’ Compatible

SoundBlaster

™ and Windows Sound System™ Compatible

Three Audio Jacks for Headphone-Out, Line-In, and Microphone-In

Two Built-In Speakers (3W) Two Built-In Speakers (2W)

Interface One Serial Port (16550A Compatible, 9 Pin Shell, up to 115Kbps)

One Parallel Port (25pin Shell, SPP/Bi-Direction/ECP/EPP Mode Support)

One External CRT Port (15-pin D-sub)

Two PS/2 Ports (Keyboard & Mouse)

Three Audio Jacks For Headphone-out, Line-in, and Microphone-in

Four USB 2.0 Ports

One RJ-45 Jack for 100M/10M Ethernet LAN

One RJ-11 Port for Modem (optional)

One IEEE 1394 Port (6 Pin Un-Powered) (optional with the Mini-PCI /IF IEEE 1394 Module)

One Mini-PCI /IF IEEE 1394 Module (optional)

I/O Chip Winbond W83627HF

PC Card Sockets Supports Two Type II Slots or One Type III PCMCIA Slot (Cardbus Support)

Storage One 3.5", 1.44MB 3-Mode Floppy Disk Drive (Interchangeable With 6-in-1 Card Reader Module or Video-Capture

Module)

One 3.5", 25.4mm Height Hard Disk Drive (Ultra-66/100 I/F Support)

One Bay for the Optional 12.7mm Height ATAPI CD-ROM, or CD-RW, or DVD-ROM, or DVD-ROM & CD-RW Combo,

or DVD/RW+R

Modem Removable Internal 56k MDC Data/Fax Modem (optional)

LAN On Board 10/100Mbps Base Auto-Detection

Indicators LED Indicators (HDD/FDD/CD Device activity, Power)

Feature Specifications L295P (A/B/T) Specifications L297P (B/D)

Introduction

System Specifications L295P/L297P 1 - 5

1.Introduction

Power/ Power Management

Internal Switching Power Supply

Full Range - AC in 90~264V, 160W

Supports ACPI v1.0b

Supports Hibernate Mode

Supports Standby Mode

Other Features Tilt (0-15°), Swivel (270°)

Fan Bearing Type Two Ball Bearings

Weight 8.9Kg 10.2Kg

Physical Dimensions

369mm (H) * 384mm (W) * 188mm (D) 395mm (H) * 418mm (W) * 179mm (D)

Optional Mini PCI/IF for IEEE 802.11b or 802.11g Wireless LAN Module

Mini PCI/IF for IEEE 1394 Module

Internal 56K MDC Data/Fax Modem Module

6-in-1 Card Reader Module

Video Capture Card (Supporting S-Video-In and AV Terminal)

Feature Specifications L295P (A/B/T) Specifications L297P (B/D)

Introduction

1 - 6 External Locator - Front View

1.Introduction

External Locator - Front View

L295P Series

L297P Series

L295PT

Figure 1 - 1

Front View

1. LCD Panel

2. Speakers

3. LED Activity indicators

4. Power Button

5. Reset Button (L295PT Design Only)

6. CD Device (L297P Only)

Introduction

External Location - Left & Right Side Views 1 - 7

1.Introduction

External Location - Left & Right Side Views



*Floppy Disk Drive &

Optional Modules

If you have either the 6-in-1 Card Reader, or Video Capture Card options, then

the optional module will replace the floppy disk drive module in the slot at point .

Figure 1 - 2

Left & Right Views

1. Floppy Disk Drive*

2. Hard Disk Drive (HDD) Bay

3. CD Device (L295P Only)

4. LCD Brightness Control Knob

5. Volume Control Knob

6. Dual PC Card Slots

7. PC Card Eject Buttons

8. Dual USB Ports

9. AC Power-In Port

10. Security Lock Slot

Left

Right

L295P Series L297P Series

1 1

Introduction

1 - 8 External Locator - Rear View

1.Introduction

External Locator - Rear View

Figure 1 - 3

Rear View

1. Carrying Handle

2. Headphone-Out Jack

3. Line-In Jack

4. Microphone-In Jack

5. RJ-45 LAN Jack

6. RJ-11 Phone Jack

7. Dual USB Ports

8. Unpowered IEEE 1394 Port

9. Blocked - IEEE 1394 Port (no

option installed)

10. PS/2 Mouse & Keyboard Ports

11. Printer/Parallel Port

12. Serial Port

13. External Monitor (CRT) Port

14. Vents

4 5

2 3

12 13

Introduction

Mainboard Overview - Top 1 - 9

1.Introduction

Mainboard Overview - Top

Key Parts

Figure 1 - 4

Mainboard Over-

view - Top

Key Parts

1. CPU Socket (no CPU Installed)

2. Intel SpringdaleG (North Bridge)

3. RAM Sockets

4. Mini PCI Socket for WLAN or IEEE1394

5. FLASH BIOS

6. CMOS Battery

7. Realtek RTL8100BL

8. Cardbus PCI1520

9. CMOS Jumper Switch

Introduction

1 - 10 Mainboard Overview - Bottom

1.Introduction

Mainboard Overview - Bottom

Key Parts

Figure 1 - 5

Mainboard Over-

view - Bottom

Key Parts

1. Chrontel CH7017A

2. Clock Generator

3. Intel ICH-5 460 mBGA (South Bridge)

4. SUPER I/O Winbond W83627HF

5. AC’97 MDC Module

Introduction

Mainboard Overview - Top 1 - 11

1.Introduction

Mainboard Overview - Top

Cable Connectors and Switches

Figure 1 - 6

Mainboard Top

Cable Connectors &

Switches

1. Floppy Disk Drive (CN5)

2. Card Reader(CN4)

3. CD/DVD Device (CN7)

4. Fan Power (CN9)

5. Inverter (CN1)

6. Modem Module

7. Speaker (CN31)

8. Modem Cable (CN33)

9. PC CARD (CN13)

10. Touch Screen (CN16)

11. IEEE1394 (CN36)

12. USB 2.0 (CN17)

13. LED Board (CN30)

14. Speaker (CN32)

15. Power (CN12)

16. Hard Disk (CN34)

10 11

13 14

Introduction

1 - 12 Mainboard Overview - Bottom

1.Introduction

Mainboard Overview - Bottom

Cable Connectors and Switches

Figure 1 - 7

Mainboard Bottom

Cable Connectors &

Switches

1. CN35 (LCD Connector)

Disassembly

Overview 2 - 1

2.Disassembly

2: Disassembly

Overview

This chapter provides step-by-step instructions for disassembling parts and subsystems. When it comes to reassembly, reverse the procedures (unless otherwise indicated).

We suggest you completely review any procedure before you take the computer apart.

Procedures such as upgrading/replacing the RAM, CD device and hard disk are included in the User’s Manual but are repeated here for your convenience.

To make the disassembly process easier each section may have a box in the page margin. Information contained under the figure # will give a synopsis of the sequence of procedures involved in the disassembly procedure. A box with a  lists the relevant parts you will have after the disassembly process is complete. Note: The parts listed will be for the disassembly procedure listed ONLY, and not any previous disassembly step(s) required. Refer to the part list for the previous disassembly procedure. The amount of screws you should be left with will be listed here also.

A box with a  will provide any possible helpful information. A box with a  contains warnings.

An example of these types of boxes are shown in the sidebar.



Information and

Component Parts



Warning

Disassembly

2 - 2 Overview

2.Disassembly

NOTE: All disassembly procedures assume that the system is turned OFF, and disconnected from any power supply, and that all peripheral cables are disconnected (including telephone lines and network cables).

Maintenance Tools

The following tools are recommended when working on the computer:

• M3 Philips-head screwdriver

• M2.5 Philips-head screwdriver (magnetized)

• M2 Philips-head screwdriver

• Small flat-head screwdriver

• Pair of needle-nose pliers

• Anti-static wrist-strap

Connections

Connections within the computer are one of four types:

Locking collar sockets for ribbon connectors To release these connectors, use a small flat-head screwdriver to gently pry the

locking collar away from its base. When replacing the connection, make sure the connector is oriented in the same way. The pin1 side is usually not indicated.

Pressure sockets for multi-wire connectors To release this connector type, grasp it at its head and gently rock it from side

to side as you pull it out. Do not pull on the wires themselves. When replacing the connection, do not try to force it. The socket only fits one way.

Pressure sockets for ribbon connectors To release these connectors, use a small pair of needle-nose pliers to gently lift

the connector away from its socket. When replacing the connection, make sure the connector is oriented in the same way. The pin1 side is usually not indicated.

Board-to-board or multi-pin sockets To separate the boards, gently rock them from side to side as you pull them

apart. If the connection is very tight, use a small flat-head screwdriver - use just enough force to start.

Disassembly

Overview 2 - 3

2.Disassembly

Maintenance Precautions

The following precautions are a reminder. To avoid personal injury or damage to the computer while performing a removal and/or replacement job, take the following precautions:

1. Don't drop it. Perform your repairs and/or upgrades on a stable surface. If the computer falls, the case and other

components could be damaged.

2. Don't overheat it. Note the proximity of any heating elements. Keep the computer out of direct sunlight.

3. Avoid interference. Note the proximity of any high capacity transformers, electric motors, and other strong mag-

netic fields. These can hinder proper performance and damage components and/or data. You should also monitor the position of magnetized tools (i.e. screwdrivers).

4. Keep it dry. This is an electrical appliance. If water or any other liquid gets into it, the computer could be badly

damaged.

5. Be careful with power. Avoid accidental shocks, discharges or explosions.

•Before removing or servicing any part from the computer, turn the computer off and detach any power supplies.

•When you want to unplug the power cord or any cable/wire, be sure to disconnect it by the plug head. Do not pull on the wire.

6. Peripherals – Turn off and detach any peripherals.

7. Beware of static discharge. ICs, such as the CPU and main support chips, are vulnerable to static electricity.

Before handling any part in the computer, discharge any static electricity inside the computer. When handling a printed circuit board, do not use gloves or other materials which allow static electricity buildup. We suggest that you use an anti-static wrist strap instead.

8. Beware of corrosion. As you perform your job, avoid touching any connector leads. Even the cleanest hands pro-

duce oils which can attract corrosive elements.

9. Keep your work environment clean. Tobacco smoke, dust or other air-born particulate matter is often attracted

to charged surfaces, reducing performance.

10. Keep track of the components. When removing or replacing any part, be careful not to leave small parts, such as

screws, loose inside the computer.

Cleaning

Do not apply cleaner directly to the computer, use a soft clean cloth. Do not use volatile (petroleum distillates) or abrasive cleaners on any part of the computer.



Power Safety

Warning

Before you undertake any upgrade procedures, make sure that you have turned off the power, and disconnected all peripherals and cables (including telephone lines). It is advisable to also remove your battery in order to prevent accidentally turning the machine on.

Disassembly

2 - 4 Disassembly Steps

2.Disassembly

Disassembly Steps

The following lists the disassembly steps, and on which page to find the related information. PLEASE PERFORM THE DISASSEMBLY STEPS IN THE ORDER INDICATED.

To remove the hard disk drive assembly:

1. Remove the hard disk drive assembly page 2 - 5

To remove the LCD back cover: