Clevo L295N, L297N Service Manual

Preface

LCD Computer L295N/L297N 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 October 2006

Trademarks

Intel®, Celeron and Intel® Core 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 L295N/ L297N 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

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

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 (Key Parts) .........................................1-8

Mainboard Overview - Bottom (Key Parts) ....................................1-9

Mainboard Overview - Top (Cable Connectors & Switches) ....... 1-10

Mainboard Overview - Bottom (Cable Connectors & 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 and Installing the Processor ...........................................2-8

Removing the Modem ...................................................................2-11

Removing the Wireless LAN Module ........................................... 2-12

Removing the Bluetooth Module .................................................. 2-13

Removing the Floppy Disk Drive Assembly ................................2-14

Removing the Optical Device Assembly ......................................2-15

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

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

L295N - Base .................................................................................A-3

L295N - Bracket (AU) ...................................................................A-4

L295N - Front ................................................................................ A-5

L295N - Front - Touch Screen ....................................................... A-6

L295N - Combo Drive ................................................................... A-7

L295N - DVD-RW Drive .............................................................. A-8

L295N - FDD ................................................................................. A-9

L295N - HDD .............................................................................. A-10

L297N - Base ............................................................................... A-11

L297N - Bracket (Chi-Mei) ......................................................... A-12

L297N - Bracket - TouchScreen (AU) ........................................ A-13

L297N - Bracket - TouchScreen (Chi-Mei) ................................. A-14

L297N - Front .............................................................................. A-15

L297N - Combo Drive ................................................................. A-16

L297N - DVD-RW Drive ............................................................ A-17

L297N - FDD ............................................................................... A-18

L297N - HDD .............................................................................. A-19

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

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

Clock Generator ..............................................................................B-3

Yonah CPU - 1 of 2 ........................................................................B-4

Yonah CPU - 2 of 2 ........................................................................B-5

Calistoga 1/5 Host ...........................................................................B-6

Calistoga 2/5 ...................................................................................B-7

Calistoga 3/5 DDR ..........................................................................B-8

Calistoga 4/5 ...................................................................................B-9

Calistoga 5/5 POWER ..................................................................B-10

DDRII RIMM ...............................................................................B-11

Chrontel CH7308 ..........................................................................B-12

LCD Connector .............................................................................B-13

VGA Interface ...............................................................................B-14

ICH7-M 1/4 (SATA) ....................................................................B-15

Preface

ICH7-M 2/4 (PCI, USB) .............................................................. B-16

ICH7-M 3/4 (FWH) ..................................................................... B-17

ICH7-M 4/4 .................................................................................. B-18

CD-ROM, Ext USB, Mini PCI ..................................................... B-19

MDC, Mini Card, USB2.0, BT .................................................... B-20

LAN RTL8110SBL ...................................................................... B-21

TI PCI7412 ................................................................................... B-22

PCM Socket, 3-in-1 Socket .......................................................... B-23

Azalia CODEC ALC883 & MDC ................................................ B-24

H8 ................................................................................................. B-25

COM Port, Fan, Parallel Port ....................................................... B-26

Super I/O PC87392, FDD ............................................................ B-27

VDD3, VDD5, 3.3V, 5V .............................................................. B-28

1.5VS, 1.05VS, 2.5VS .................................................................. B-29

AC-IN, 1.8V, 0.9VS ..................................................................... B-30

VCORE ........................................................................................ B-31

12VS ............................................................................................. B-32

Button Board for L295N ..............................................................B-33

Button Board for L297N ..............................................................B-34

CD-ROM Board for L295N ......................................................... B-35

CD-ROM Board for L297N ......................................................... B-36

USB Board ................................................................................... B-37

CardReader Board ........................................................................ B-38

Screw Hole ................................................................................... B-39

Introduction

Overview 1 - 1

1.Introduction

1: Introduction

Overview

This manual covers the information you need to service or upgrade the L295N/L297N 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 L295N/L297N 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® Core™ 2 Duo Processor

(478-pin) Micro-FC-PGA Package T7200/ T7400/ T7600

65nm (65 Nanometer) Process Technology 4MB On-die L2 Cache & 667MHz FSB

2.0/ 2.16/ 2.33 GHz

Intel® Core™ 2 Duo Processor (478-pin) Micro-FC-PGA Package T5500/ T5600

65nm (65 Nanometer) Process Technology 2MB On-die L2 Cache & 667MHz FSB

1.66/ 1.83 GHz

Intel® Core™ Duo Processor (478-pin) Micro-FC-PGA Package T2300/ T2400/ T2500/ T2600/ T2700

65nm (65 Nanometer) Process Technology 2MB On-die L2 Cache & 667MHz FSB

1.66/ 1.83/ 2.0/ 2.16/ 2.33 GHz

Intel® Core™ Solo Processor (478-pin) Micro-FC-PGA Package T1300/ T1400

65nm (65 Nanometer) Process Technology 2MB On-die L2 Cache & 667MHz FSB

1.66/ 1.83 GHz

Intel® Celeron® M Processor (478-pin) Micro-FCPGA Package 410/ 420/ 430/ 440/ 450

65nm (65 Nanometer) Process Technology 1MB On-die L2 Cache & 533MHz FSB

1.46/ 1.60/ 1.73/ 1.86/ 2.0 GHz

Core Logic Intel 945GM + ICH7-M



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

Introduction

System Specifications 1 - 3

1.Introduction

LCD L295N

15.0" XGA Anti-Glare Type Flat Panel TFT (1024*768) Touch Panel (Factory Option) Hard Glass (Factory Option)

L297N

17.0" SXGA Anti-Glare Type Flat Panel TFT (1280*1024) Touch Panel (Factory Option) Hard Glass (Factory Option)

Security Security (Kensington® Type) Lock Slot BIOS Password

Memory Two 200 Pin SO-DIMM Sockets Supporting DDRII (DDR2) 533/667 MHz

64-bit Wide DDRII (DDR2) Data Channels Memory Expandable up to 2GB (256/ 512/ 1024 MB DDRII Modules) (Note: Do Not Use Other Module Types)

Video Controller Intel 945GM Integration

Intel® Graphics Media Accelerator 950 (Intel® GMA 950) Dynamic Video Memory Technology DVMT - Supports up to 224MB of Video Memory (dynamically allocated from system memory where needed)

BIOS 4MB Flash ROM Phoenix BIOS

Storage One 3.5”, 25.4mm (h) Hard Disk (HDD) with SATA (Serial) Interface

One 3.5", 1.44MB 3-Mode Floppy Disk Drive One changeable 12.7mm(h) Optical Device (CD/DVD) Type Drive (see “Optional” on page 1 - 4 for drive options)

Audio Intel AZALIA High Definition Audio Interface

3D Stereo Enhanced Sound System Sound-Blaster PRO™ Compatible

2 * Built-In Speakers Built-In Microphone, Line-In & Headphone Jacks

Keyboard Multi-language External Keyboard (Option)

PC Card Sockets Supports One Type II PCMCIA Slot (Cardbus Support)

Card Reader Embedded 7-in-1 Card Reader (SD/ MMC/ MS/ MS PRO/ MS Duo/ Mini SD/ RSMMC)

Interface One Serial Port

One Parallel Port One External Monitor Port One Headphone-Out Jack One Microphone-In Jack One Line-In Jack

Four USB 2.0 Ports One RJ-45 Jack for LAN One RJ-11 Jack for Modem One AC-In Jack One IEEE 1394a Port (Un-Powered)

Feature Specification

Introduction

1 - 4 System Specifications

1.Introduction

Communication 1GB PCIe Ethernet LAN

MDC 56K Fax Modem - V.90 & V.92 Compliant Intel PRO/Wireless 3945ABG PCIe Interface Wireless LAN Module (Optional)

802.11 b/g Wireless LAN Module (Optional) USB (2.0) Bluetooth Module (Factory Option)

Power Management

Supports ACPI 2.0 Supports Wake On Modem Ring

Supports Wake On LAN

Power Full Range - 90W Built-in AC adapter

Environmental Spec

Temperature Operating: 5°C ~ 35°C Non-Operating: -20°C ~ 60°C

Relative Humidity Operating: 20% ~ 80% Non-Operating: 10% ~ 90%

Dimensions & Weight

L295N

369mm (W) * 188mm (D) * 384mm (H)

8.2Kg+/- 5% With Touch Screen

7.9Kg+/- 5% Without Touch Screen Tilt (0-15 deg), Swivel (270 deg)

L297N

395mm (W) * 179mm (D) * 418mm (H)

10.1Kg+/- 5% With Touch Screen

9.8Kg+/- 5% Without Touch Screen Tilt (0-15 deg), Swivel (270 deg)

Optional Optical Drive Module Options:

Combo Drive Module DVD-Dual Drive Module DVD Super Multi Drive Module

Touch Panel (Factory Option)

Hard Glass (Factory Option)

Intel PRO/Wireless 3945ABG PCIe Interface Wireless LAN Module

802.11 b/g Wireless LAN Module

USB (2.0) Bluetooth Module (Factory Option)

Feature Specification

Introduction

External Locator - Front View 1 - 5

1.Introduction

External Locator - Front View

L295N L297N

Figure 1 - 1

Front View

1. LCD Panel

2. Speakers

3. LED Activity indicators

4. Power Button

5. Optical (CD/ DVD) Device Bay (L297N only)

6. Keyboard Holder (L297N only)

Introduction

1 - 6 External Location - Left & Right Side Views

1.Introduction

External Location - Left & Right Side Views

Figure 1 - 2

Left & Right Views

1. Floppy Disk Drive*

2. Vent

3. Hard Disk Drive (HDD) Bay

4. CD Device (L295N only)

5. LCD Brightness Control Knob

6. Volume Control Knob

7. Dual PC Card Slots

8. PC Card Eject Buttons

9. 7-in-1 Card Reader

10. 2* USB Ports

11. AC Power-In Port

12. Security Lock Slot

L295N L297N L295N L297N

Left Right

Introduction

External Locator - Rear View 1 - 7

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. 2* USB Ports

8. Unpowered IEEE 1394 Port

9. Printer/Parallel Port

10. Serial Port

11. External Monitor Port

12. Vents

13. Hard Disk Bay Screw

4 5

2 3 87

L295N L297N

Introduction

1 - 8 Mainboard Overview - Top (Key Parts)

1.Introduction

Mainboard Overview - Top (Key Parts)

Figure 1 - 4

Mainboard Over-

view - Top

Key Parts

1. CPU Socket (no CPU Installed)

2. Intel 945GM (North Bridge)

3. RAM Sockets

4. Mini Card Socket for WLAN

5. FLASH BIOS

6. CMOS Battery

7. Cardbus PCI7412

Introduction

Mainboard Overview - Bottom (Key Parts) 1 - 9

1.Introduction

Mainboard Overview - Bottom (Key Parts)

Figure 1 - 5

Mainboard Over-

view - Bottom

Key Parts

1. Chrontel CH7308

2. Clock Generator

3. Intel ICH7-M 652 mBGA (South Bridge)

4. SUPER I/O Winbond PC87392

5. AZALIA MDC Module

Introduction

1 - 10 Mainboard Overview - Top (Cable Connectors & Switches)

1.Introduction

Mainboard Overview - Top (Cable Connectors & Switches)

Figure 1 - 6

Mainboard Top

Cable Connectors &

Switches

1. CD/DVD Device (CN7)

2. Floppy Disk Drive (CN5)

3. CN35 (LCD Connector)

4. Inverter (CN1)

5. BT Module

6. Modem Module

7. Card Reader

8. Speaker (CN31)

9. Modem Cable (CN33)

10. PC CARD (CN13)

11. Touch Screen (CN16)

12. IEEE1394 (CN36)

13. USB 2.0 (CN17)

14. LED Board (CN30)

15. Speaker (CN32)

16. Power (CN12)

17. Fan Power (CN9)

Introduction

Mainboard Overview - Bottom (Cable Connectors & Switches) 1 - 11

1.Introduction

Mainboard Overview - Bottom (Cable Connectors & Switches)

Figure 1 - 7

Mainboard Bottom

Cable Connectors &

Switches

Introduction

1-12

1.Introduction

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 dis- assembly 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

2-2Overview

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: