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Preface LCD Computer L295U/L297U Series Service Manual...
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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.
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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.
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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 Removing the CD Device Assembly (L295U Series) ....2-14 Removing the CD Device Assembly (L297U Series) ....2-15 Overview ..................1-1 Part Lists ..........A-1 Model Differences ................1-2 Part List Illustration Location ............A-2 System Specifications L295U/L297U ..........1-3 L295U - Base .................
Introduction 1: Introduction Overview This manual covers the information you need to service or upgrade the L295U/L297U 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 &...
Introduction Model Differences The differences between the model types are indicated in the table and pictures below. Table 1 - 1 Feature/Model L295U Series L297U Series Model Specifications LCD Size Color TFT 15" XGA LCD Panel (supporting a resolution Color TFT 17" SXGA LCD Panel (supporting a of 1024*768 256K colors) resolution of 1280*1024 16 million colors) CD Device Location...
Introduction System Specifications L295U/L297U Table 1 - 2 L295U/L297U Feature Specification - L295U Specification - L297U System Processor Types Intel Pentium® 4 with HT Technology (520/ 530/ 540) FC-PGA2 Package (478-pin) Specifications (90nm) - 90 Nanometer Process Technology, 1MB L2 Cache & 800MHz Front Side Bus 2.8/ 3.0/ 3.2/ GHz Intel Pentium®...
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Introduction Feature Specification - L295U Specification - L297U Video 865-GV 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) Video Memory The system allocates or “shares”...
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Introduction Feature Specification - L295U Specification - L297U Storage One 3.5", 1.44MB 3-Mode Floppy Disk Drive (Exchangeable 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 Optical Device 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)
Introduction External Location - Left & Right Side Views Figure 1 - 2 Left & Right Views Left Right 1. Floppy Disk Drive* 2. Hard Disk Drive L295U Series L297U Series (HDD) Bay 3. CD Device (L295U Only) 4. LCD Brightness Control Knob 5.
Introduction Mainboard Overview - Top Figure 1 - 4 Mainboard Key Parts Overview - Top Key Parts 1. CPU Socket (no CPU Installed) 2. Intel Springdale- G (North Bridge) 3. RAM Sockets 4. Mini PCI Socket for WLAN or IEEE1394 5.
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.
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: •...
Disassembly Maintenance Precautions The following precautions are a reminder. To avoid personal injury or damage to the computer while performing a re- moval and/or replacement job, take the following precautions: Power Safety Warning 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.
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: To remove the floppy disk drive assembly: 1.
Disassembly Removing the Hard Disk Drive Assembly Figure 2 - 1 Hard Disk Removal 1. Turn OFF the computer and turn it around so that you may comfortably access the left side. Sequence 2. Remove screw from the HDD Bay 3.
Disassembly Removing the LCD Back Cover Figure 2 - 2 LCD Back Cover 1. Turn OFF the computer and place it with its LCD display facing down on a clean, dry, level surface. Removal 2. Remove screws from the LCD back cover and slide it up towards the top of the computer. Sequence 3.
Disassembly Removing the System Memory Figure 2 - 3 Memory Removal 1. Remove the LCD back cover (page 2 - Sequence 2. The memory sockets will be visible at point on the mainboard. 3. For each module you want to replace, gently pull the latches toward the sides of the socket to release the a.
Disassembly Removing the CPU Figure 2 - 4 CPU Removal 1. Remove the LCD back cover (page 2 - Sequence 2. Press down and hold each of the latches & (on the top of the CPU heat sink and fan unit) in turn. 3.
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Disassembly 5. Move the latch fully in the direction indicated in to unlock the CPU. Figure 2 - 5 6. Carefully (it may be hot) lift the CPU up out of the socket. CPU Removal 7. When re-inserting the CPU pay careful attention to the pin alignment, it will fit only one way (don’t force it!). Sequence (cont’d) a.
Disassembly Removing the I/O Bracket Figure 2 - 6 I/O Bracket 1. Remove the LCD back cover (page 2 - Removal 2. Remove the standard screws , and use long-nosed pliers or a nutdriver to remove the hex socket connector Sequence type screws 3.
Disassembly Removing the Modem Figure 2 - 7 Modem Removal 1. Remove the LCD back cover (page 2 - 6) and I/O bracket (page 2 - 10). Sequence 2. Remove screws from the modem module and disconnect the modem cable at point 3.
Disassembly Removing the Floppy Disk Drive Assembly Figure 2 - 8 Floppy Disk Drive 1. Remove the LCD back cover (page 2 - Assembly 2. Remove screws from the floppy disk drive assembly. Removal 3. Carefully disconnect the floppy disk drive ribbon cable at point Sequence 4.
Disassembly Removing the Mini PCI I/F Module Figure 2 - 9 Mini PCI I/F Module 1. Remove the LCD back cover (page 2 - 6,). Removal 2. Release the pins at points & and carefully lift up the Mini PCI I/F module. Sequence 3.
Disassembly Removing the CD Device Assembly (L295U Series) Figure 2 - 10 L295U CD Device 1. Remove the LCD back cover (page 2 - Assembly 2. Remove screws , and disconnect cable , from the CD device. Removal 3. Remove the CD Device Sequence a.
Disassembly Removing the CD Device Assembly (L297U Series) Figure 2 - 11 L297U CD Device 1. Turn the computer OFF and turn it around so that you may comfortably access the rear. Assembly 2. Locate the CD-ROM eject switch and remove screw Removal 3.
Part Lists Appendix A: Part Lists This appendix breaks down the computer’s construction into a series of illustrations. The component part numbers are indicated in the tables opposite the drawings. Note: This section indicates the manufacturer’s part numbers. Your organization may use a different system, so be sure to cross-check any relevant documentation.
Part Lists Part List Illustration Location The following table indicates where to find the appropriate part list illustration. Part L295U - Page # L297U - Page # Base page A - 3 page A - 11 Back page A - 4 page A - 12 Front page A - 5...
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