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NEC NEC Computer Systems Division, Packard Bell NEC, Inc, NEC Versa 2500 Series User's Guide 25-10584-00 Removing/Replacing the LCD Status Bar Cover and Hinges

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4-6 Field Service Guidelines

3. To replace the diskette drive, remove the four flat screws attaching it to the null

diskette assembly , two attaching the diskette cover and remove the diskette drive

cable.

4. To replace the diskette drive unit, remove the four small screws attaching it to the

null diskette drive assembly and remove the diskette drive cable.

5. To replace the diskette drive module, reverse the above pro cedure.

Figure 4-2 Diskette Drive Module Assembly

Removing/Replacing the LCD Status Bar Cover and Hinges

Remove the LCD Status Bar Cover and Hinge Covers are as follows:

1. Turn off the computer. Follow all disassembly procedures mentioned from the

start of this section.

2. Slide the left and right hinge covers out to remove them.

3. Lift the status bar cover out.

4. To replace the LCD Status Cover and Hinge Covers, reverse the removal proce-

dures mentioned above.

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Contents

Main PROPRIETARY NOTICE AND LIABILITY DISCLAIMER Preface SOLD BY laptopia2005 DO NOT RESELL!! Contents Page SOLD BY laptopia2005 DO NOT RESELL!! Page Page Page Page FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT WARNING Abbreviations Page Page Section 1 Introduction 1-2 Introduction FEATURE HIGHLIGHTS Table 1-2 Feature Highlights Introduction 1-3 SYSTEM CONFIGURATION The following diagram shows the NEC Versa 2500 Series system configuration. Figure 1-2 System Configuration Diagram and QUICK TOUR OF THE NOTEBOOK Main Components Page Page The Right Side of the Notebook SOLD BY laptopia2005 DO NOT RESELL!! Front of the Notebook Left Side of the Notebook The Rear of the Notebook Page Bottom of the Notebook Page SYSTEM BIOS SETUP PROGRAM THE BOOT SETUP MENU Introduction 1-15 Table 1-4 Boot Main Setup Menu hour : minute : second month / day / year 3.5, 1.44 MB disk drive Auto Table 1-4 Boot Main Setup Menu (contd) 2, 6, 10, 13.3, 18.5, 21.8, 26.7, 30 seconds. Table 1-5 Boot Setup Peripherals Menu Table 1-6 Boot Setup Security Menu 1-18 Introduction Table 1-7 Boot Setup Power Savings Menu SYSTEM UPGRADES MEMORY UPGRADE PROCEDURE SYSTEM BIOS UPGRADE PROCEDURE Page Section 2 General Specifications The following table lists NEC Versa 2500 Series system specifications. Table 2-1 NEC Versa 2500 Series Specifications 2-2 General Specifications General Specifications 2-3 2-4 General Specifications General Specifications 2-5 2-6 General Specifications Table 2-1 NEC Versa 2500 Series Specifications (contd) PRODUCT MIX The following table lists the NEC Versa 2500 Series product mix. Table 2-2 Product Mix General Specifications 2-7 SYSTEM BOARD SPECIFICATIONS The following table lists system board specifications. Table 2-3 Main Board Specifications 2-8 General Specifications TRANSFER BOARD SPECIFICATIONS The following table lists Transfer board specifications. Table 2-4 Transfer Board Specifications CONVERTER BOARD SPECIFICATIONS The following table lists Converter board specifications. LED INDICATOR BOARD SPECIFICATIONS The following table lists LED indicator board specifications. Table 2-6 LED Indicator Board Specifications 2-10 General Specifications I/O BOARD SPECIFICATIONS The following table lists I/O board specifications. Table 2-7 I/O Board Specifications General Specifications 2-11 Table 2-7 I/O Board Specifications (contd) 2-12 General Specifications LCD INVERTER BOARD SPECIFICATIONS The following table lists LCD inverter board specifications. Table 2-8 LCD Inverter Board Specifications General Specifications 2-13 LED STATUS INDICATORS Table 2-9 Status LED Descriptions DISKETTE DRIVE SPECIFICATIONS The following table lists the standard diskette drive specifications. Table 2-10 Diskette Drive Specifications HDD UNIT SPECIFICATIONS The following table lists the standard hard drive specifications. Table 2-11 Hard Disk Drive Specifications CD-ROM SPECIFICATIONS The following table lists the standard CD-ROM reader specifications. DC/DC CONVERTER & BATTERY CHARGER SPECIFICATIONS The following table lists DC/DC converter & battery charger specifications. Table 2-14 DC/DC Converter & Battery Charger Specifications BATTERY CHARGER SPECIFICATIONS The following table lists battery charger specifications. KEYBOARD SPECIFICATIONS The following table lists keyboard specifications. Table 2-16 Keyboard Specifications AC/DC ADAPTER SPECIFICATIONS The following table lists AC/DC adapter specifications. BIOS SPECIFICATIONS The following table lists BIOS specifications. Table 2-18 BIOS Specifications 2-18 General Specifications Table 2-18 BIOS Specifications (contd) MICRO-CONTROLLER FUNCTION DESCRIPTION The following table lists Micro-Controller specifications. Table 2-19 Micro-Controller Specifications General Specifications 2-19 POWER MANAGEMENT FEATURES (MODE DEFINITION) The following table lists power management specifications. Table 2-20 Power Management Modes POWER MANAGEMENT FEATURES (MODE TRANSITION) General Specifications 2-21 6. Fully-On Activity Events Occur 7. Suspend Mode Time-Out Battery Low - Low Condition 8. Resume Events Occur HOT KEY DEFINITION The following table lists hot key definitions. Table 2-22 Hot Keys ENVIRONMENTAL SPECIFICATIONS The following table lists appropriate operating temperatures. POWER SOURCE SPECIFICATIONS The following table lists system power specifications. Table 2-24 Power Specifications VIBRATION SPECIFICATIONS The following table lists vibration specifications. ELECTRO-STATIC DISCHARGE (ESD) SPECIFICATIONS The following table lists static discharge specifications. Table 2-27 Electro-Static Discharge Specifications Section 3 Hardware Functional Overview 3-2 Hardware Functional Overview FUNCTIONAL BLOCK DIAGRAM The following figure shows the NEC Versa 2500 Series functional diagram. Figure 3-1 Functional Block Diagram SYSTEM BIOS System Processor Major Functional Blocks SYSTEM LOGIC CONTROLLER Page MEMORY SUBSYSTEM DRAM Memory ROM Memory I/O SUBSYSTEM VIDEO SUBSYSTEM Video Chipset Controller External VGA Capability KEYBOARD SUBSYSTEM PCMCIA CONTROLLER AND SOCKETS HARD DISK SUBSYSTEM DISKETTE DRIVE SUBSYSTEM POINTING DEVICE SUBSYSTEM POWER SUBSYSTEM AC Power Adapter Internal Battery Pack Power Board LCD Inverter Board Assembly Section 4 Field Service Guidelines PREVENTIVE MAINTENANCE Cleaning the Notebooks Exterior Cleaning the Notebooks Interior Protecting the Disk Drives Handling the Computer Battery Packs Maintaining the LCD Quality REQUIRED TOOLS AND EQUIPMENT PARTS REMOVAL AND REPLACEMENT PROCEDURES Removing/Replacing the Notebook Battery Pack Removing/Replacing the Hard Disk Drive Module Removing/Replacing the Diskette Drive Module Removing/Replacing the LCD Status Bar Cover and Hinges Removing/Replacing the Keyboard Removing/Replacing the Heat Plate Removing/Replacing the CPU Removing/Replacing the Cover-Display LCD Assembly Module Removing/Replacing the System Top Cover Assembly and the NEC VersaGlide Assembly Removing/Replacing the LED Board Removing/Replacing the System Board and I/O Board Separating the System Board and I/O Board Removing/Replacing the Power Board Field Service Guidelines 4-13 ILLUSTRATED PARTS BREAKDOWN Table 4-1 NEC Versa 2500 Series Field-Replaceable Parts* ____________ 4-14 Field Service Guidelines Table 4-1 NEC Versa 2500 Series Field-Replaceable Parts (contd)* ____________ Page 4-16 Field Service Guidelines Packaging and Documentation Packaging and documentation part numbers are listed in Table 4-2. Table 4-2 Packaging and Documentation Part Numbers Section 5 Troubleshooting and Repair SERVICE INFORMATION TECHNICAL SUPPORT PRODUCT INFORMATION Ordering Information from FastFacts HELPFUL STARTERS 5-4 Troubleshooting and Repair POWER-ON SELF TEST (POST) POST Messages Table 5-2 POST Error Messages Troubleshooting and Repair 5-5 Table 5-2 POST Error Messages (contd) 5-6 Troubleshooting and Repair Table 5-2 POST Error Messages (contd) hex-value hex- value hex-value Troubleshooting and Repair 5-7 Informational Messages This section lists the messages that provide information to the user but require no action. Table 5-3 BIOS Informational Messages NCH 5-8 Troubleshooting and Repair Run-time Error Messages The following table lists run-time error messages. Table 5-4 Run-time Error Messages address interrupt at address QUICK TROUBLESHOOTING Table 5-5 Quick Troubleshooting 5-10 Troubleshooting and Repair Table 5-5 Quick Troubleshooting (contd) Troubleshooting and Repair 5-11 Appendix A Video Modes VGA STANDARD MODES The following table lists VGA standard modes. Table A-1 VGA Standard Modes (Text Mode) A-2 Video Modes Table A-2 VGA Standard Modes (Graphics Mode) Table A-3 VGA Standard Modes (Planar Mode) Table A-4 VGA Standard Modes (Packed Pixel Mode) Video Modes A-3 VGA EXTENDED MODES The C&T 65548 VGA BIOS supports standard VESA and extended modes, listed in the following table. Table A-5 VGA Extended Modes (Text Mode) Table A-6 VGA Extended Modes (4-Bit Linear Mode) Table A-7 VGA Extended Modes (8-Bit Linear Mode) Table A-9 VGA Extended Modes (16-Bit Linear Mode) - 1MB Video Memory Only Table A-10 VGA Extended Modes (24-Bit Linear Mode) Table A-11 VGA Extended Modes (Planar Mode) Table A-12 VGA Extended Modes (Packed Pixel Mode) Video Modes A-5 VGA HIGH REFRESH MODES The following tables list VGA high refresh modes. Table A-13 VGA High Refresh Modes (Packed Pixel Mode) Table A-14 VGA High Refresh Modes (Planar Mode) Table A-15 VGA High Refresh Modes (Packed Pixel Mode) WARNING ATTENTION BATTERY DISPOSAL Index