Benutzeranleitung / Produktwartung Versa 2500 Series User's Guide 25-10584-00 des Produzenten NEC
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First Printing — March 1997 Copyright 1997 NEC Computer Systems Division, Packard Bell NEC, Inc. 1414 Massachusetts Avenue Boxborough, MA 01719 All Rights Reserved PROPRIETARY NOTICE AND LIABILITY D.
xi Preface This service and reference manual contains the technical information necessary to set up and maintain the NEC Versa ® 2500 Series notebook computer. It also provides hardware and interface information for users who need an overview of the system’s design.
iii Contents Preface ......................................................................................................................... x i Abbreviations ..........................................................................................
iv Contents System BIOS Upgrade Procedure ................................................................................ 1-20 Section 2 General Specifications Product Mix ..............................................................................
Contents v DRAM Memory .................................................................................................... 3-6 ROM Subsystem ................................................................................................... 3-6 I/O Subsystem .
vi Contents Removing/Replacing the System Board and I/O Board .......................................... 4-10 Separating the System Board and I/O Board ......................................................... 4-11 Removing/Replacing the Power Board .
Contents vii 1-13 Connecting to the Printer Port ........................................................................ 1-12 1-14 Connecting to the Serial Port ......................................................................... 1-12 1-15 Bottom View of the Notebook .
viii Contents 2-13 Battery Specifications ..................................................................................... 2-14 2-14 DC/DC Converter & Battery Charger Specifications ...................................... 2-15 2-15 Battery Charger Specifications .
Contents ix A-13 VGA High Refresh Modes (Packed Pixel Mode) ............................................ A -5 A-14 VGA High Refresh Modes (Planar Mode) ...................................................... A- 5 A-15 VGA High Refresh Modes (Packed Pixel Mode) .
(For United States Use Only) FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT ! WARNING Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
xiii Abbreviations A ampere AC alternating current AT advanced technology (IBM PC) BBS Bulletin Board System BCD bi nary-coded decimal BCU BIOS Cus tomized Utility BIOS basic input/output system bit b.
xiv Abbreviations IRR Interrupt Request register ISA Industry Standard Architecture ISR In Service register I/O input/output IPC integrated peripheral controller ip s inches per second IRQ interrupt r.
Abbreviations xv UART universal asynchronous receiver/transmitter V volt Vdc volts, direct current VESA video electronics standards association VFO variable frequency oscillat o r VGA Video Graphics A.
Section 1 Introduction This section focuses on providing outline features and operations of the NEC Versa 2500 Series Notebook Computer, including the BIOS Setup program. (Refer to the User’s Guide for more information on operating the notebook.) The NEC Versa 2500 Series of note- books are lightweight, compact, and fully IBM compatible.
1-2 Introduction FEATURE HIGHLIGHTS The NEC Versa 2500 Series notebook includes a variety of innovative features designed to meet the most demanding computing requirements Table 1-2 Feature Highlights.
Introduction 1-3 SYSTEM CONFIGURATION The following diagram shows the NEC Versa 2500 Series system configuration. Cache RAM L2: 256KB write back BIOS Flash ROM 8 / 16MB RAM On-Board Upgradable to 48MB.
1-4 Introduction QUICK TOUR OF THE NOTEBOOK Take a moment to become familiar with the locations and functions of all controls. It is rec- ommended that you first go through the notebook’s user guide for more information on how to operate all of the features.
Introduction 1-5 Keyboard The notebook has a built-in 87/88-key keyboard that provides complete emulation of a full- sized IBM AT-enhanced keyboard with function keys and screen/cursor control keys.
1-6 Introduction Table 1-3 Fn Key Combination Summary (cont’d) Key Combination Function Fn key + F11 key This ke y combination to gg les the LCD displa y backli g htin g (CCFT) on and off. Fn key + right key This key combination increases the contrast level.
Introduction 1-7 Memory Slot Compartment The memory compartment is located just under the keyboard. Inside the compartment are two extra memory module sockets which can accommodate any standard JEDEC 8 MB or 16 MB DIMM modules.
1-8 Introduction The NEC Versa 2500 Series also comes with DOS/Windows PC card drivers for supporting various PC cards like modem cards, network cards, and other I/O and memory cards. The LED Status Bar, likewise, provides lights to indicate when the computer is accessing the in- serted PC cards.
Introduction 1-9 Figure 1-7 Removing the Battery Pack Left Side of the Notebook The following details the left side of the NEC Versa 2500 Series computer. Figure 1-8 Left Side of the Notebook DC-IN Connector Jack The NEC Versa 2500 series provides a universal auto-switching AC adapter which con- nects the AC power cord into the power outlet.
1-10 Introduction Figure 1-9 Connecting the AC Adapter to the Notebook Hardware Reset Switch To the right of the AC adapter connector jack, you will notice a small hole which allows an easy alternative to resetting the notebook’s hardware. The Rear of the Notebook The following details the rear side of the NEC Versa 2500 Series computer.
Introduction 1-11 Figure 1-11 Connecting an External Keyboard and PS/2 Mouse VGA Port The 15-pin female VGA connector allows you to connect an external VGA monitor that supports up to 1024x768 pixels resolution. When displaying on an external VGA monitor alone, the VGA port supports resolutions up to 1024x768 at 256 colors.
1-12 Introduction Printer Port The 25-pin printer port provides a parallel interface to connect a parallel printer or pocket network adapter. Many operating systems and software applications refer to this port as LPT1. You can run the BIOS Setup program to change the configuration of the parallel port to Standard or Bi-directional.
Introduction 1-13 Figure 1-15 Bottom View of the Notebook The following describes the bottom of the NEC Versa 2500 Series computer. Battery Module Handle and Lock To release the battery module from its compartment, push the battery compartment latch as indicated by the arrow marked on it.
1-14 Introduction SYSTEM BIOS SETUP PROGRAM This section provides the outline features and operation of the Phoenix BIOS Setup pro- gram used in the NEC Versa 2500 Series.
Introduction 1-15 Table 1-4 Boot Main Setup Menu Item Function System Time This option allows y ou to chan g e the s y stem time, usin g the format hour : minute : second . You can change the system time here or from your operating system’s command prompt.
1-16 Introduction Table 1-4 Boot Main Setup Menu (cont’d) Item Function POST Errors This options allow the s y stem to pause and displa y the error message at boot attempt. Keyboard Features Selects keyboard options. Num Lock This option toggles the Num Lock key on or off.
Introduction 1-17 Table 1-6 Boot Setup Security Menu Item Function Password This option allows y ou to limit access to the computer throu g h the use of a password. If y ou select this option, a pop-up win- dow appears askin g y ou to set or chan g e the password.
1-18 Introduction Table 1-7 Boot Setup Power Savings Menu Item Function Power Saving This option allows y ou to enable or disable power mana g e- ment.
Introduction 1-19 Table 1-7 Boot Setup Power Savings Menu (cont’d) Item Function Cover Switch Con- trol This option allows y ou to effectivel y pro g ram the t y pe of event which occurs when the display panel is closed. Select SUSPEND , the computer enters the SUSPEND Mode when the LCD Panel is closed.
1-20 Introduction To upgrade the memory in the notebook, follow these steps. 1. Power off the computer and remove the AC adapter and battery pack. 2. Remove the hinge covers, status bar cover, and the keyboard from the top of the unit and locate the memory expansion sockets.
Introduction 1-21 1. Copy the PHLASH.COM & PLATFORM.BIN BIOS utility program and the BIOS ROM file to the hard disk subdirectory. You can also choose to run the program from the diskette. 2. Disable EMM386 or other memory manager programs before restarting the com- puter.
Section 2 General Specifications The following table lists NEC Versa 2500 Series system specifications. Table 2-1 NEC Versa 2500 Series Specifications ITEM SPECIFICATION CPU Pentium P54CSLM-133 MHz TC.
2-2 General Specifications Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION CD-ROM Reader Removable CD-ROM Reader 8x speed Diskette Drive Removable Diskette Drive 720KB/1.
General Specifications 2-3 Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION HotKe y Operation Fn + F8 = PC Beep Mute Fn + Esc = Suspend Control Fn + <Right Arrow> = C.
2-4 General Specifications Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION Audio Support external Stereo Headphone Jack Support external Stereo Line-In Jack Support external MIC.
General Specifications 2-5 Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION Key Components 12.1” Color DSTN SVGA LCD: EDMGR68KBF (Panasonic) CD-ROM: CDR-38E-900 Hard Disk Drive: 1.
2-6 General Specifications Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION Flash ROM: AMD AM29F002T PWM Controller: MAXIM MAX797 MOSFET: NS 9410 & 9953 AC Adapter PRODUCT MIX The following table lists the NEC Versa 2500 Series product mix.
General Specifications 2-7 SYSTEM BOARD SPECIFICATIONS The following table lists system board specifications. Table 2-3 Main Board Specifications ITEM SPECIFICATION Clock NS Clock Buffer CGS74CT 2524 .
2-8 General Specifications TRANSFER BOARD SPECIFICATIONS The following table lists Transfer board specifications. Table 2-4 Transfer Board Specifications ITEM SPECIFICATION Internal Connector To FDD: 100 Pin, AMP To second batter y 100 Pin, AMP PCB Thickness: 1.
General Specifications 2-9 LED INDICATOR BOARD SPECIFICATIONS The following table lists LED indicator board specifications. Table 2-6 LED Indicator Board Specifications ITEM SPECIFICATION Internal Con.
2-10 General Specifications I/O BOARD SPECIFICATIONS The following table lists I/O board specifications. Table 2-7 I/O Board Specifications ITEM SPECIFICATIONS Clock Crystal 14.
General Specifications 2-11 Table 2-7 I/O Board Specifications (cont’d) ITEM SPECIFICATIONS Internal Connector To System PCB 100 Pin, AMP To System PCB 100 Pin, AMP To HDD Unit 50 Pin, KEL To CD ROM.
2-12 General Specifications LCD INVERTER BOARD SPECIFICATIONS The following table lists LCD inverter board specifications. Table 2-8 LCD Inverter Board Specifications ITEM Specification Color Inverter Panasonic 12.1” DSTN LMG9980ZWC Input Voltage 8V to 20V Output Voltage 500VAC Max.
General Specifications 2-13 LED STATUS INDICATORS The following table lists NEC Versa 2500 Series LEDs. For example, the AC IN LED lights to indicate power is on and that the battery is charging.
2-14 General Specifications HDD UNIT SPECIFICATIONS The following table lists the standard hard drive specifications. Table 2-11 Hard Disk Drive Specifications ITEM SPECIFICATION Module 2.5” Removable HDD Module Capacity 1.4 GB Interface Enhanced IDE Interface Unit Size 100mm (L) x 70mm (W) x 12.
General Specifications 2-15 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 ITEM SPECIFICATION Input Voltage 6V -> 19V Output Voltage 12V, 5V, 3.
2-16 General Specifications KEYBOARD SPECIFICATIONS The following table lists keyboard specifications. Table 2-16 Keyboard Specifications ITEM SPECIFICATION Key Switch Type Membrane Key Stroke 3.0 ± 0.5mm Operating Force 50 ± 20GF Key Pitch 19.05mm AC/DC ADAPTER SPECIFICATIONS The following table lists AC/DC adapter specifications.
General Specifications 2-17 BIOS SPECIFICATIONS The following table lists BIOS specifications. Table 2-18 BIOS Specifications ITEM Specification Floppy Disk Drive Support standard 3.
2-18 General Specifications Table 2-18 BIOS Specifications (cont’d) ITEM Specification Suspend (To RAM) STR can be invoked b y Hot-Ke y , Cover-Switch, Batter y Low-Low Condition, & Operating Sy.
General Specifications 2-19 POWER MANAGEMENT FEATURES (MODE DEFINITION) The following table lists power management specifications. Table 2-20 Power Management Modes Mode Device Speed Full-On Mode CPU .
2-20 General Specifications Table 2-20 Power Management Modes Mode Device Speed Suspend To Disk Timer CPU State Power System Power-On Group Activity Events Off/1/2/4/8/16 Min Off Off Micro-Controller .
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 FUNCTION KEY CONTENT Fn + Esc Suspend Fn + F10 LCD/CRT/SIMUL.
2-22 General Specifications POWER SOURCE SPECIFICATIONS The following table lists system power specifications. Table 2-24 Power Specifications Input Nominal Version AC Voltage 100 ~ 250 V 90 ~ 265 V AC Frequency 50 / 60 Hz 47 ~ 63 Hz VIBRATION SPECIFICATIONS The following table lists vibration specifications.
General Specifications 2-23 ELECTRO-STATIC DISCHARGE (ESD) SPECIFICATIONS The following table lists static discharge specifications. Table 2-27 Electro-Static Discharge Specifications ITEM SPECIFICATION Contact Discharge ± 2, 4, 8, 12.
Section 3 Hardware Functional Overview The NEC Versa 2500 Series notebooks consist of several major functions and subsystems including: system BIOS – implemented on the system board and Flash ROM sy.
3-2 Hardware Functional Overview FUNCTIONAL BLOCK DIAGRAM The following figure shows the NEC Versa 2500 Series functional diagram. Bank 0 8MB (on-board) Bank 1 8, 16MB (DIMM) Cache RAM L2: 256 KB writ.
Hardware Functional Overview 3-3 The NEC Versa 2500 Series uses the Phoenix BIOS. The BIOS Setup program is an easy- to-use system utility configuration that sets system parameters and copies them on the Flash ROM chip with the system BIOS.
3-4 Hardware Functional Overview When external memory access is required, the physical address is calculated by the Memory Management Unit and then passed to the Bus Interface Unit (BIU). The BIU provides the interface between the external system board and the processor’s internal execution and cache units.
Hardware Functional Overview 3-5 On-board Memory up to 48 MB Supports Three Memory Banks Supports Page Mode/Burst Mode Operation Supports 512KBx8, 1Mx4, 1Mx16, 2Mx8 and 4Mx4 type DRAM .
3-6 Hardware Functional Overview MEMORY SUBSYSTEM The memory subsystem, implemented on the system board, includes ROM and DRAM memory. Primary control for the memory subsystem is provided by the UMC 8890 System Controller chipset. DRAM Memory The NEC Versa 2500 notebooks contain 16 MB of 70ns page-interleaved DRAM on the system board.
Hardware Functional Overview 3-7 VIDEO SUBSYSTEM The video subsystem, implemented on the system board and on the LCD Panel, controls the display output to both the LED Panel and to the external VGA port. The video subsystem utilizes the C&T 65548 High Performance Flat Panel / CRT VGA Controller.
3-8 Hardware Functional Overview Hardware line drawing 64x64x2 hardware cursor High performance resulting from zero wait-state writes (write buffer) and mini- mum wait-state reads (internal as.
Hardware Functional Overview 3-9 PCMCIA CONTROLLER AND SOCKETS The PCMCIA controller is implemented on the system board using Omega’s 82C094 Inter- face Controller.
3-10 Hardware Functional Overview The built-in controller can support any industry standard 2.5-inch IDE hard disk drive at 19mm or 17mm height. Setting up the hard disk type is done automatically by the CMOS Setup program. Setup auto-detects the installed hard disk type settings for optimized per- form ance.
Hardware Functional Overview 3-11 Internal Battery Pack The NEC Versa 2500 Series notebooks utilizes NiMH (Nickel Metal-Hydride) that pro- vides DC power for the notebook The battery pack contains ten size A battery cells that provide the system with 12V.
Section 4 Field Service Guidelines This section contains preventive and corrective maintenance procedures for the NEC Versa 2500 Series notebook computers. The first part of this section describes the computer cleaning procedures and preferred handling procedures for sensitive components (i.
4-2 Field Service Guidelines Cleaning the Notebook’s Interior When servicing the inside of the notebook to remove dust and other foreign particles pro- ceed as follows: 1. Remove the top cover, hinge covers, status bar, and keyboard using the disas- sembly procedures discussed later.
Field Service Guidelines 4-3 Do not drop the battery packs or subject them to excessive shock and vibration. Do not expose the battery packs to direct sunlight, moisture, or chemical com- pounds. Do not disassemble the battery packs. Do not use the battery packs to power other devices.
4-4 Field Service Guidelines PARTS REMOVAL AND REPLACEMENT PROCEDURES This section contains field service-level removal/replacement procedures for the notebook.
Field Service Guidelines 4-5 Removing/Replacing the Hard Disk Drive Module The procedure for removing and replacing the hard disk drive module is as follows: 1. Turn off the computer. Close the LCD cover and turn the whole unit over. 2. You will find a clamp latch (lock knob) that secures the hard disk drive module to the system unit.
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.
Field Service Guidelines 4-7 Removing/Replacing the Keyboard The procedure for removing and replacing the keyboard is as follows: 1. Turn off the computer. Follow all disassembly procedures mentioned from the start of this section. 2. Lift the keyboard out and tilt the upper edge of the keyboard towards you, but do not lift the keyboard away.
4-8 Field Service Guidelines 3. Slowly remove the CPU, moving around each side, little by little. Avoid damaging the CPU pins by forcing the CPU out of its slot immediately. Also, do not pull out the CPU heat sink as it is part of the CPU. You must remove the CPU and the heat sink together.
Field Service Guidelines 4-9 1. Turn off the computer and remove the Battery, Hard Disk Drive, and Diskette Drive Modules. Follow all disassembly procedures mentioned from the start of this section. 2. Turn the System Unit upside down with the bottom facing up.
4-10 Field Service Guidelines 3. Remove the two screws and lift the board carefully out of the connections to the system board. Figure 4-3 The LED Board Module Assembly Removing/Replacing the System B.
Field Service Guidelines 4-11 Figure 4-4 The System Board and I/O Boards Separating the System Board and I/O Board The system board is attached directly to the I/O board. The following procedure should be taken to separate the two boards: 1. Turn off the computer.
4-12 Field Service Guidelines Figure 4-5 The I/O Board Module Assembly Removing/Replacing the Power Board The procedure for removing the power board is as follows: 1. Turn off the computer. Follow all disassembly procedures mentioned from the start of this section.
Field Service Guidelines 4-13 ILLUSTRATED PARTS BREAKDOWN This section contains the illustrated parts breakdown (IPB) and NEC part numbers for the NEC Versa 2500 Series computer. Table 4-1 lists field-replaceable parts and corresponding part numbers. Figure 4-7 shows the field-replaceable parts for the docking station.
4-14 Field Service Guidelines Table 4-1 NEC Versa 2500 Series Field-Replaceable Parts (cont’d)* Item Description Part Number 26 I/O Cover 24-40794-10 27 1.
Field Service Guidelines 4-15 Figure 4-7 NEC Versa 2500 Series Illustrated Parts Breakdown SOLD BY laptopia2005 DO NOT RESELL!! SOLD BY laptopia2005 DO NOT RESELL!!.
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 Description Model Number NEC Versa 2500 Series User’s Guide 25-10584-00 NEC Versa 2500 Series Service and Reference Manual (this guide) 819-200191-000 Rev.
Section 5 Troubleshooting and Repair This section focuses on providing you with some information on notebook basic trouble- shooting as well as the BIOS POST error codes and messages. SERVICE INFORMATION NEC service and information telephone numbers are listed in the following table.
5-2 Troubleshooting and Repair If it is more convenient, questions may also be faxed to TSC. The TSC fax number is: (508) 635-4666 Along with the complete product name and question(s), be sure to included your name and fax number or Internet address, so that an expert can respond to your question(s).
Troubleshooting and Repair 5-3 For international; enter the international long distance access number, the U.S. telephone number, or the U.S. extension (01-630-775-7999).
5-4 Troubleshooting and Repair POWER-ON SELF TEST (POST) This section provides you with the Phoenix BIOS POST errors and messages summary. Refer to this whenever you encounter error messages or beep codes generated by the com- puter during startup.
Troubleshooting and Repair 5-5 Table 5-2 POST Error Messages (cont’d) Message Possible Cause Action No boot device available - press F1 to retr y boot, F2 for SETUP utility Either diskette drive A:, the fixed disk, or both the diskette and fixed disk are defective.
5-6 Troubleshooting and Repair Table 5-2 POST Error Messages (cont’d) Message Possible Cause Action Keyboard clock line failure The ke y board, the ke y board cable connection, or the ke y board controller is defective. Make sure the ke y board cable and ke y board are connected properl y .
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 Message Meaning NCH Base Memory The amount of base memory that tested successfully.
5-8 Troubleshooting and Repair Run-time Error Messages The following table lists run-time error messages. Table 5-4 Run-time Error Messages Message Cause Action I/O card parit y interrupt at address . Type (S)hut off NCI, (R)eboot, other ke y s to continue Memor y on a peripheral card has failed.
Troubleshooting and Repair 5-9 QUICK TROUBLESHOOTING This section summarizes problems that may develop during system operation and lists sug- gested corrective actions. Table 5-5 Quick Troubleshooting Problem Corrective Actions No power Check that the AC adapter is plu gg ed into the power connector of the s y stem.
5-10 Troubleshooting and Repair Table 5-5 Quick Troubleshooting (cont’d) Problem Corrective Actions System halts during boot sequence Check condition of selected bootload device (diskette or hard disk) for bad boot track or incorrect OS files. Tr y bootin g from a new bootable diskette and recopy or repartition hard disk.
Troubleshooting and Repair 5-11 Table 5-5 Quick Troubleshooting (cont’d) Problem Corrective Actions PCMCIA card does not work Check the PCMCIA driver installation for an y IRQ or IO address conflict. Check if the PCMCIA card is inserted properl y and all connections are set.
A ppendix A Video Modes The C&T 65548 VGA chipset supports high resolution fixed frequency and variable fre- quency analog monitors in interlaced and non-interlaced modes of operation. Digital moni- tor support is also built-in. The tables in this section list all 65548 CRT monitor video modes.
A-2 Video Modes Table A-2 VGA Standard Modes (Graphics Mode) Hex Mode No. of Colors Text Display Font Size Pixel Reso- lution Dot Clock MHz Horiz. Freq. KHz Vert. Freq. Hz 4 4 40 x 25 8 x 8 320 x 200 25.175 31.5 70 5 4 40 x 25 8 x 8 320 x 200 25.175 31.
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) Hex Mode No. of Colors Text Display Font Size Pixel Resolution Dot Clock MHz Horiz.
A-4 Video Modes Table A-9 VGA Extended Modes (16-Bit Linear Mode) - 1MB Video Memory Only Hex Mode No. of Colors Text Display Font Size Pixel Reso- lution Dot Clock MHz Horiz. Freq. KHz Vert. Freq. Hz 41 64K 80 x 30 8 x 16 640 x 480 50.350 31.5 60 Table A-10 VGA Extended Modes (24-Bit Linear Mode) Hex Mode No.
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) Hex Mode No. of Colors Text Display Font Size Pixel Reso- lution Dot Clock MHz Horiz. Freq. KHz Vert. Freq. Hz 30 256 80 x 30 8 x 16 640 x 480 31.
BATTERY REPLACEMENT A CMOS cl o ck batt ery i n y o ur co m put er mai ntai ns sy st em co nf i gurat ion i nf o r m at i o n. I n t he even t t h a t t he ba t t er y fa ils t o main t a in s ys t e m c o nfig u r a t io n in fo r ma t io n, N E C r e c o mme nd s t h a t yo u r e - place the battery.
Index A AC adapter connecting, 1-9 AC power adapter, 3-10 AC/DC adapter specifications, 2-16 B Battery removing, 1-8 Battery charger specifications, 2-15 Battery compartment latch, 1-13 Battery compar.
Index-2 I I/O board specifications, 2-10 I/O subsystem, 3-6 Illustrated Parts Breakdown (IPB), 4-13 Intel P54CSLM, 3-3 K Keyboard, 1-5 Keyboard controller, 3-8 Keyboard specifications, 2-16 L LCD cove.
Index-3 T Technical support contacting, 5-1 Transfer board specifications, 2-8 Troubleshooting checklist, 5-3 V VersaGlide subsystem, 3-10 VGA extended modes, A-3 VGA high refresh modes, A-5 VGA port,.
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