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NEC Versa 2600 Series Service Guide Art Copy Version PROPRIETARY NOTICE AND LIABILITY DISCLAIMER The information disclosed in this document, including all designs and related materials, is the valuable property of NEC Computer Systems Division, Packard Bell NEC, Inc. (NECCSD, PBNEC) and/or its licensors. NECCSD and/or its licensors, as appropriate, re- serve all patent, copyright and other proprietary rights to this document, including all de- sign, manufacturing, reproduction, use, and sales rights thereto, except to the extent said rights are expressly granted to others. The NECCSD product(s...
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NEC Versa 2600 Series Service Guide Art Copy Version, PROPRIETARY NOTICE AND LIABILITY DISCLAIMER The information disclosed in this document, including all designs and related materials, is the valuable property of NEC Computer Systems Division, Packard Bell NEC, Inc. (NECCSD, PBNEC) and/or its licensors. NECCSD and/or its licensors, as appropriate, re- serve all patent, copyright and other proprietary rights to this document, including all de- sign, manufacturing, reproduction, use, and sales rights thereto, except to the extent said rights are expressly granted to others. The NECCSD product(s) discussed in this document are warranted in accordance with the terms of the Warranty Statement accompanying each product. However, actual performance of each such product is dependent upon factors such as system configuration, customer data, and operator control. Since implementation by customers of each product may vary, the suitability of specific product configurations and applications must be determined by the customer and is not warranted by NECCSD. To allow for design and specification improvements, the information in this document is subject to change at any time, without notice. Reproduction of this document or portions thereof without prior written approval of NECCSD is prohibited. NEC is a registered trademark of NEC Corporation; Versa is a U.S. registered trademark of NEC Technologies, Inc.; all are used under license by NEC Computer Systems Division (NECCSD), Packard Bell NEC, Inc. All other product, brand, or trade names used in this publication are the trademarks or registered trademarks of their respective trademark owners. First Printing — May 1997 Copyright 1997 NEC Computer Systems Division, Packard Bell NEC, Inc. 1414 Massachusetts Avenue Boxborough, MA 01719 All Rights Reserved, iii

Contents

Preface... ix Abbreviations... xi Section 1 Technical Information Hardware Overview — Front...1-2 Liquid Crystal Display (LCD)...1-2 Power Button ...1-4 Power and Status LEDs ...1-4 Keyboard ...1-5 NEC VersaGlide ...1-5 CD-ROM Reader and Diskette Drive ...1-6 Hardware Overview — Right Side ...1-6 PC Card Slots ...1-7 Kensington Lock...1-7 Hardware Overview — Left Side ...1-7 Hardware Overview — Rear...1-8 Infrared Port ...1-8 Keyboard/Mouse Port ...1-8 Expansion Port ...1-8 Monitor (Video) Port ...1-8 Parallel Port (LPT1)...1-8 Serial Port (COM1) ...1-9 AC/DC Power Port ...1-9 Hardware Overview — Internal Components ...1-9 Battery Pack ...1-9 Hard Disk Drive...1-10 Diskette Drive...1-10 10x CD-ROM Reader ...1-10 CPU Board ...1-11 Sound Board...1-12 I/O Board ...1-13 Bridge Battery ...1-13 System Memory...1-14 Memory Map ...1-14 System Video...1-15, iv Contents Parallel Interface ...1-15 Serial Interface...1-16 NEC Versa Chip Set ...1-16 Intel Pentium P55CLM Microprocessor ...1-16 256K X Flash ROM ...1-16 ROM BIOS...1-17 VGA Controller ...1-17 Keyboard Controller ...1-18 PC Card Controller ...1-18 Sound Integrated Circuit ...1-18 Interrupt Controllers ...1-19 Power Management Overview ...1-20 System Power Management ...1-21 Local Power Management...1-21 Plug and Play...1-21 Specifications...1-22 Section 2 Setup and Operation Unpacking the System...2-1 Hardware Setup...2-1 Cable Connections ...2-3 Power Sources...2-4 Using the AC Adapter...2-4 Using the Main Battery Pack...2-5 Installing the Battery Pack...2-5 How to Recharge the Battery Pack...2-6 Battery Handling...2-6 Replacing the Battery Pack ...2-7 Battery Life...2-8 Extending Battery Life ...2-8 Battery Charging...2-9 Battery Precautions...2-9 Battery Disposal...2-10 Internal Batteries...2-10 Extending Battery Life ...2-10 Operating Controls ...2-11 Status Icons and LEDs...2-12, Contents v Status Icons ...2-12 Function Keys (Fn Keys)...2-13 Updating the System BIOS ...2-13 Power-On Self -Test (POST) ...2-14 POST Errors...2-15 Setup Utility ...2-16 Setup Utility...2-17 How to Enter Setup ...2-17 How to Use Setup...2-17 The Setup Screen...2-17 Using Keys ...2-18 Checking/Setting System Parameters...2-19 Using Power Management ...2-25 Power Saving Modes ...2-25 Power Management Settings ...2-26 Using Fn-F3...2-26 Section 3 Troubleshooting Quick Troubleshooting ...3-1 Helpful Questions ...3-4 Section 4 Field Service Guidelines Preventive Maintenance ...4-1 Cleaning the Notebook Exterior ...4-2 Cleaning the Notebook Interior ...4-2 Protecting the Disk Drives ...4-2 Handling the Battery Packs ...4-3 Maintaining the LCD Quality ...4-3 Disassembly and Reassembly...4-4 Required Tools and Equipment ...4-5 Battery Pack ...4-5 Hard Disk Drive...4-6 Keyboard ...4-7 Heat Shield and CPU Board...4-9 LCD and Top Cover ...4-11 VersaGlide Assembly ...4-13 Sound Board...4-14, vi Contents LED Status Board and IR Board...4-14 10X CD-ROM Reader and Heat Shield ...4-14 Bridge Battery and Diskette and Hard Drive Connector Board...4-16 Diskette Drive...4-17 Power Board...4-18 Main Board...4-18 Reassembly ...4-18 Illustrated Parts Breakdown...4-18 Service Information...4-22 Technical Support ...4-22 Product Information...4-23 Ordering Information from FaxFlash ...4-23 Appendix A Connector Locations and Pin Assignments Appendix B Video Modes List of Figures 1-1 NEC Versa 2600 Series Notebook ... 1-1 1-2 Front View... 1-3 1-3 Keyboard Layout ... 1-5 1-4 VersaGlide Location ... 1-6 1-5 Right Side Features ... 1-6 1-6 Left Side Features ... 1-7 1-7 Rear Features... 1-8 1-8 CPU Board Layout ... 1-11 1-9 Sound Board Layout ... 1-12 1-10 I/O Board ... 1-13 2-1 AC Adapter ... 2-1 2-2 Powering On the System... 2-2 2-3 Power and I/O Connector Locations ... 2-3 2-4 NEC Versa AC Adapter... 2-4 2-5 Battery Release Latch ... 2-7 2-6 Inserting Battery Pack... 2-8 2-7 Panel LEDs and Controls ... 2-11, Contents vii 2-8 Status Icons ... 2-12 4-1 Releasing the Battery Pack... 4-5 4-2 Removing the Hard Disk Drive (Step1) ... 4-6 4-3 Removing the Hard Disk Drive (Step 2) ... 4-6 4-4 Removing the Hard Disk Drive (Step 3) ... 4-7 4-5 Removing the Keyboard... 4-8 4-6 Removing the Heat Sink/Shield Subassembly ... 4-9 4-7 Removing the CPU Board... 4-10 4-8 Removing the LCD Assembly (Step 1) ... 4-11 4-9 Removing the LCD Assembly (Step 2) ... 4-12 4-10 Disconnecting VersaGlide Cables ... 4-13 4-11 Removing the CD-ROM Reader... 4-15 4-12 Removing the CD-ROM Reader Assembly Screws... 4-15 4-13 Removing the Bridge Battery and Diskette and Hard Drive Connector Board. 4-17 4-14 NEC Versa 2600 Series Illustrated Parts Breakdown... 4-19 A-1 CPU Board Layout ... A-1 A-2 Main Board Layout ... A-2 A-3 Sound Board Layout ... A-3 List of Tables 1-1 Model Configurations NEC Versa 2600 Series... 1-2 1-2 Memory Map ... 1-14 1-3 NEC Versa 2600 Series Chip Types and Technologies ... 1-16 1-4 Interrupt Controllers ... 1-19 1-5 DMA Channel... 1-20 1-6 Automatic Power-Saving Features ... 1-20 1-7 Specifications... 1-22 2-1 I/O Connector Descriptions... 2-3 2-2 Control and Switch Functions ... 2-11 2-3 Fn Key Operations ... 2-13 2-4 POST Error Messages... 2-15 2-5 Setup Key Functions ... 2-18 2-6 Setup Parameters ... 2-19 2-7 Automatic Power-Saving Features ... 2-26, viii Contents 3-1 Quick Troubleshooting... 3-1 4-1 NEC Versa 2600 Series Disassembly Sequence ... 4-4 4-2 NEC Versa 2600 Series Field-Replaceable Parts... 4-20 4-3 NEC Service and Information Telephone Numbers... 4-22 A-1 CPU Board Connector ... A-1 A-2 Main Board Connectors ... A-2 A-3 Sound Board Connectors ... A-3 A-4 Keyboard/Mouse Connectors ... A-3 A-5 Serial Port Connector Pin Assignments ... A-4 A-6 CRT Connector Pin Assignments ... A-4 A-7 Parallel Printer Pin Assignments ... A-5 A-8 Power Connector ... A-5 A-9 Hard Disk Drive Connector... A-6 B-1 LCD Display Mode Setting (800x600 TFT Color LCD and Simultaneous CRT Display)... B-1 B-2 CRT Display Mode (CRT Only)... B-3 B-3 Panning Video Mode (800x600 TFT Color LCD and Simultaneous CRT Display) ... B-4, ix

Preface

This service and reference manual contains the technical information necessary to set up and maintain the following NEC Versa® 2600 Series models: NEC Versa 2630CD NEC Versa 2635CD NEC Versa 2650CD NEC Versa 2655CD NEC Versa 2650CDT NEC Versa 2655CDT. The manual also provides hardware and interface information for users who need an over- view of the system design. The manual is written for NEC-trained customer engineers, sys- tem analysts, service center personnel, and dealers. The manual is organized as follows: Section 1 Technical Information, provides an overview of the hardware and interface components. System specifications are listed including computer dimensions, weight, envi- ronment, safety compliance, power consumption, and system memory specifications. Section 2 Setup and Operation, takes the authorized service technician or dealer from unpacking to setup and operation. The section includes a description of operating controls, setting parameters and accessing the NECCSD bulletin board system (BBS). Section 3 Troubleshooting, lists troubleshooting procedures as well as helpful servicing hints. Section 4 Field Service Guidelines, provides disassembly and assembly procedures, and an exploded-view diagram of the NEC Versa system with part numbers. Appendix A Connector Locations and Pin Assignments, provides a list of the main board internal connector pin assignments and a list of external pin assignments. Appendix B Video Modes, lists NEC Versa supported video modes. An Index is included for convenience.,

Section 1 Technical Information

The NEC Versa 2600 Series notebook computers are lightweight, compact, and fully IBM compatible. The latest additions to the NEC Versa 2600 family include the following models: NEC Versa 2630CD NEC Versa 2635CD NEC Versa 2650CD NEC Versa 2655CD NEC Versa 2650CDT NEC Versa 2655CDT.

NOTE

This service manual covers the NEC Versa 2630CD, 2635CD, 2650CD, 2655CD, 2650CDT, and 2655CDT models only. All fig- ures in this manual reflect these models. Figure Section 1-1 NEC Versa 2600 Series Notebook This section of the manual provides system configuration information, including an over- view of hardware and interface components. See the following table for a system specific breakdown of each model’s hardware., 1-2 Technical Information T able Section 1-1 Model Configurations NEC Versa 2600 Series Feature 2630CD 2 635CD 2 650CD 2 655CD 2 650CDT 2 655CDT CPU (Pentium) P 54CSLM P55CSLM P55CL, P55CL, P 55CL, P55CL, 133 MHz 133 MHz 150 MMX 150 MMX 150 MMX 150 MMX O n-Board RAM16MB16MB16MB16MB16MB16MB Video Memory 1 .5 MB 1 .5 MB 1 .5 MB 1 .5 MB 1 MB 1 MB Hard Disk Drive 1.44 GB 1 .44 GB 1 .44 GB 1 .44 GB 1 .44 GB 1 .44 GB CD-ROM Reader 1 0X 1 0X 1 0X 1 0X 1 0X 1 0X Color LCD (12.1”) S VGA1, SVGA1, S VGA1, S VGA1, SVGA1, SVGA1, DSTN2 DSTN2 DSTN2 DSTN2 TFT3 TFT3 Battery N iMH NiMH NiMH NiMH LiIon L iIon 1. Super VGA (SVGA) color display 2. Dualscan Super-Twisted Nematic (DSTN) 3. Thin Film Transistor (TFT) HARDWARE OVERVIEW—FRONT Take a moment to become familiar with the location and function of controls located on the front of the system. Liquid Crystal Display (LCD) The LCD operates with the Chips & Technologies 65550B VGA controller. The controller supports Super VGA, uses a 64 bit accelerator with a Peripheral Component Interconnect (PCI) interface. The LCD also supports VESA timing. The NEC Versa 2630CD, 26535CD, 2650CD and 2655CD LCD features the following: 12.1-inch Dual-STN, Cold Cathode Fluorescent Tube (CCFT) Super VGA color

LCD

0.30 mm dot pitch 16-bit digital interface 800 x 600 resolution 64,000 colors Slide bar that adjust screen contrast. The NEC Versa 2650CDT and 2655CDT features the following: 12.1-inch active-matrix Thin Film Transistor (TFT), Super VGA (SVGA) backlit color LCD 0.3 mm dot pitch, Technical Information 1-3 18-bit digital interface 800 x 600 resolution 64,000 colors Slide bar that adjust screen brightness. Additional LCD panel features include a slide switch which controls adjusts screen bright- ness. LCD Panel LCD Slide Bar Status Power LEDs Button VersaGlide

NEC

Speaker Speaker Microphone Hard Drive Battery Bay CD-ROM Reader Diskette Drive Figure Section 1-2 Front View Another video feature includes a CRT port on the system's rear panel that allows the user to connect an optional monochrome or color external display to the system. The computer can support the LCD and external display simultaneously., 1-4 Technical Information Power Button Press the power button to power on and power off the computer. The power button is a “smart” switch, meaning that it recognizes when the system is in Suspend mode. If in Sus- pend mode, you cannot power off until you press the power button again to bring the sys- tem out of Suspend mode, then you are able to power off. Power and Status LEDs The Power and Status LEDs are situated right below the LCD. They provide an easy way to detect system status. Power and Status LEDs (identified by icons) are found to the right of the Power button and inform you of the status of your system and its components. Status LEDs have the following meanings and light under the conditions noted: Power Hard CD-ROM Diskette Disk Drive Reader Drive

A

Caps Num Pad Battery Lock Lock Lock Status LED icons Power – Lets you know that power to the system is turned on. This LED is posi- tioned so that you see the power state whether the LCD panel is opened or closed lights green when the system is powered on. lights amber when battery power is below 10%. flashes amber when battery power is below 5%. ! CAUTION Be sure to save your data immediately when the Power LED turns to yellow, flashes yellow, or the system beeps. Failure to do so can result in data loss. Hard Disk Drive – Lights when the NEC Versa 2600 writes data to or retrieves data from the hard disk drive. CD-ROM Reader – Lights when data is read from a compact disc in the CD- ROM drive., Technical Information 1-5 Diskette Drive – Lights when data is written to or retrieved from the 3.5-inch diskette drive. Caps Lock – Lights when Caps Lock mode is in effect. Num Lock – Lights when Num Lock mode is active. Pad Lock – Lights when the embedded numeric keypad lock is on. Battery Charging Status – Lights to indicate the following: Green – the battery is fully charged. Amber – the battery is charging. Light Off – the AC adapter is disconnected.

Keyboard The built-in, 83-key keyboard (U.S.) or 79-key keyboard (UK and Germany) uses the stan-

dard QWERTY format. The keyboard provides 12 function keys and 7 cursor control keys, with an Fn key for ROM-based key functions. The numeric keypad is embedded in the stan- dard key layout. Function K eys Esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 Pause PrtSc Ins Del Setup Break SysReq ! @ # $ % ^ & * ( ) _ + BkSp Home1234567788990- - = Scroll LockQWERTYUIOP{ } | Tab PgUp456+ [ ] \

A

CapSDFGHJKL: " Enter Lock PgDn123; * ' ZXCVBNM< > ? Shift Shift End 0 , ./ / ~ Fn Ctrl Alt Alt Ctrl ` Control Keys Embedded Numeric Keypad Cursor Control Keys Figure Section 1-3 Keyboard Layout

NEC VersaGlide The NEC VersaGlide is a built-in mechanism that functions as the system’s mouse. It con-

trols the on-screen pointer (cursor). To use the VersaGlide, move your finger across the

NEC VersaGlide pad, and the cursor follows. The buttons below the NEC VersaGlide al-

low the user to select or deselect menu items. Tap and double-tap are supported on the

VersaGlide pad. The PS/2 Microsoft mouse is the system’s default pointing device, driver for the NEC Ver-

saGlide. If an external mouse is installed, then the VersaGlide is deactivated. A serial mouse is not supported., 1-6 Technical Information VersaGlide Left Right Selection Button Selection Button Figure Section 1-4 VersaGlide Location CD-ROM Reader and Diskette Drive A 10X CD-ROM reader and 1.44-MB diskette drive come installed in the NEC Versa 2600 Series on the front of the computer. HARDWARE OVERVIEW—RIGHT SIDE Review the following section for a description of the hardware on the right side of the NEC Versa. PC Card Kensington Lock Slots Port Figure Section 1-5 Right Side Features, Technical Information 1-7 PC Card Slots The PC card slot compartment houses two Type II devices, or one Type II and one Type III devices. For Type III cards, insert the PC card into the upper slot. Insert the card with the pin sockets facing towards the drive and the label facing up. To remove the PC card, push on the Eject button to release the pin connections and slowly pull out the card. The NEC Versa also comes with DOS/Windows PC card drivers for supporting various PC cards like modem and network cards in Windows for Workgroups configurations. Kensington Lock The Kensington Lock Port gives the user the option to add an optional Kensington Lock. HARDWARE OVERVIEW—LEFT SIDE Review the following section for a description of the hardware on the left side of the NEC Versa. Line In Headphones Microphone Volume Control Dial Figure Section 1-6 Left Side Features Line-In — Use a cable to connect to the Line-Out port on the other audio system to record or play. Microphone (MIC) — Connects an external microphone for monophonic record- ing or amplification through the unit. Plugging in an external microphone disables the built-in microphone. Headphones — Connects external headphones or speakers to the NEC Versa. Plugging in headphones disables the built-in system speakers. Volume Control — Controls the speaker or headphone volume., 1-8 Technical Information HARDWARE OVERVIEW—REAR Review the following section for a description of the hardware on the rear of the NEC Versa. Port Replicator Latch IR Port Keyboard AC Power Mouse Port Port Expansion Serial Port Monitor Parallel Port Port Port Figure Section 1-7 Rear Features Infrared Port This port lets you transfer files between your NEC Versa and an IR-equipped desktop or notebook computer. You can also print to an IR-equipped printer without using cables. Keyboard/Mouse Port Use the standard PS/2 port to connect an external PS/2-style mouse or a PS/2-style key- board to the system. A serial mouse is not supported through this connector nor is a Y- adapter. Expansion Port This port provides a connection for NEC Versa options including the NEC Versa Port Rep- licator 2600. Monitor (Video) Port Use this 15-pin port to attach an external monitor to your NEC Versa. You can run the LCD display and the external monitor simultaneously or run either alone. Parallel Port (LPT1) The 25-pin printer port provides a parallel interface to which you can connect a parallel printer or pocket network adapter. Use this port to connect a parallel printer or other par- allel device. The port is IEEE 1284 compatible. It supports bi-directional (AT) mode, En- hanced Capabilities Port (ECP) mode, Enhanced Parallel Port (EPP) mode, (365SL- compatible), and bi-directional (PS/2) mode., Technical Information 1-9 The parallel port’s default is PS/2 mode. Use Setup to change the default to one of the fol- lowing. Standard EPP ECP Serial Port (COM1) The 9-pin serial port provides a serial interface to which you can connect an RS-232C de- vice such as an external serial printer or modem. A serial mouse is not supported. AC/DC Power Port Use the power jack to attach the NEC Versa to an appropriate DC power source, such as the NEC Versa 2600 AC adapter or the optional NEC Versa 2600 DC car adapter. HARDWARE OVERVIEW—INTERNAL COMPONENTS Review the following sections for a description of the system’s internal hardware. Battery Pack The system uses a rechargeable lithium-ion (Li-Ion) battery or rechargeable nickel metal- hydride (NiMH) as its transient power source. The battery pack installs in the compartment next to the CD ROM reader on the front of the NEC Versa. The Li-Ion battery stores 14.4 volts with a 2700 mAh capacity and the NiMH stores 9.6 volts with a 3500 mAh capacity. The battery pack powers the NEC Versa for approximately 1:40 to 4 hours depending on battery type and power management choice. When battery power is getting low, connect the AC adapter to a wall outlet and recharge the battery. It takes 3 to 4 hours to recharge the battery., 1-10 Technical Information Hard Disk Drive A removable 2.5-inch, 1.44-GB hard disk drive ships with the system. The 1.44-GB hard disk drive specifications are listed next. The 1.44-GB hard disk drive specifications are listed next. Track-to-track seek rate — 4 ms Average seek time — 13 ms (read), 14 ms (write) Revolutions per minute — 4009 Data transfer rate — 16.6 MB/sec Media data rates — 39.6 − 61.8 Μbit/sec Diskette Drive The 3.5-inch 1.44-MB diskette drive is located in the front right of the system. 10X CD-ROM Reader A 10X CD-ROM reader ships with all NEC Versa 2600 Series models. This ten-speed CD- ROM reader features the latest in CD-ROM technology. It is located in the front center of the system. The CD-ROM reader operates at different speeds depending on whether the CD in use contains data or music. This improves video and sound quality., Technical Information 1-11 CPU Board The CPU board is an L-shaped board situated under the keyboard. The NEC Versa 2630CD and 2635CD models ship with Intel’s P54CSLM/133 MHz with 66 MHz bus speed. Modes 2650CD, 2655CD 2650CDT and 2655CDT ship with P55CLM/150 MHz MMX with 60 MHz bus speed. Figure Section 1-8 CPU Board Layout, 1-12 Technical Information Sound Board The sound board provides the NEC Versa system with its audio capabilities via line-in and headphone/microphone jacks. It is situated on top of the I/O board. The sound board inte- grates the following features. Figure Section 1-9 Sound Board Layout, Technical Information 1-13 I/O Board The system I/O board contains peripheral subsystems including serial, parallel and video ports, PC card controller and charger. Figure Section 1-10 I/O Board layout Bridge Battery The NiMH battery (3.6 Volts, 60 mAh capacity) is attached to CN23 on the underside of the Main board. It provides battery backup and prevents data loss in the system’s comple- mentary metal oxide semiconductor (CMOS) RAM. This memory area contains information on the system’s configuration like date, time, drives, and memory. The bridge battery also provides power for main battery swapping, while in suspend mode. The bridge battery lasts approximately two years., 1-14 Technical Information SYSTEM MEMORY The system board provides 16-MB of standard random access memory (RAM). Optional memory DIMMS with a value of 8-, 16-, or 32-MB can be added to increase sys- tem memory up to a maximum of 80-MB (70ns Fast Page access or HyperPage access). The DIMMS must be added in pairs of the same capacity. In addition, 256-KB of read-only memory (ROM), 1 x 28F020, enables the system BIOS to be flashed. The system provides 1-MB (TFT models) or 1.5-MB (DSTN model) of video RAM (60ns HyperPage mode, self refresh). The following Cache RAM is provided: L1: 16KB (Internal Pentium P54C-133) 32KB (Internal Pentium P55C-150MMX) L2: 256 KB PipeLineBurst-SRAM. Memory Map The system supports system and video shadowing, both controlled through complementary metal oxide semiconductor (CMOS). The system supports BIOS as a cacheable area with write protection. Table Section 1-2 lists the system memory map. T able Section 1-2 Memory Map Memory Space S ize F unction 0 000000h-0009FFFFh 640 KB D OS Applications & Optional Memory Space Gap 00A0000h-000B7FFF 96 KB V ideo (VGA) Graphic Memory 00B8000h-000BFFFFh 32 KB T ext Mode Memory (SMM Space) 00C0000h-000C9FFF 40 KB V ideo (VGA) BIOS 0 0CA000h-000CFFFFh 24 KB P nP BIOS / PCI BIOS 00D0000h-000DFFFFh 64 KB S etup / PCMCIA Window (Extended Memory or Upper Memory Block) 00E0000h-000FFFFFh 128 KB S ystem BIOS ROM 0000000h -00FFFFFFh 16 MB T otal Base Memory 0000000h -FFFEFFFFh 80 MB T otal Extension Memory, Technical Information 1-15 SYSTEM VIDEO The system's LCD operates using the Chips and Technologies 65550B VGA Controller. Video signals travel from the controller through the system's 15-pin D-SUB connector us- ing 5 volts. System video integrates a PCI-bus interface. The system ships with 1 MB on TFT units and 1.5MB on DSTN of Video RAM (VRAM). It supports video modes up to 800 x 600 with 64K colors in LCD mode. See Appendix B for a list of Video modes. PARALLEL INTERFACE The system's parallel interface integrates National Semiconductor’s PC87336VJG Periph- eral I/O chip with a 25-pin D-subconnector. The port is located on the system's rear panel. The modes of operation available for a PC87336VJG chip are: compatibility mode nibble mode byte mode Extended Capabilities Port (ECP) Enhanced Parallel Port (EPP). The user selects between three parallel interface modes using Auto Setup. These include unidirectional, bi-directional or enhanced. Unidirectional mode sends data output from the standard ISA port only. Bi-directional mode sends data using the standard ISA port or PS/2 technology. Enhanced mode enables high speed data transmission to occur using either the unidirectional or bi-directional modes. The default parallel port address is 378h and the interrupt level is IRQ07. Pin locations for the parallel interface are listed in Appendix A., 1-16 Technical Information SERIAL INTERFACE The RS-232C serial port is a 9-pin connector on the system’s rear panel. The serial port consists of a 16550A compatible serial port controller with a programmable baud rate up to 115,200 bps. The serial port connects an RS-232C device or an external modem. The de- fault serial port address is 3F8h and the interrupt level is IRQ04. NEC VERSA CHIP SET Refer to Table Section 1-3 for a quick summary of the chip types used in the system. See the Abbreviations section at the beginning of this manual for a translation of chip technolo- gies acronyms. Table Section 1-3 NEC Versa 2600 Series Chip Types and Technologies Chip Manufacturer Description T echnology Intel Pentium P54CSLM Intel 133 MHz CPU 320-pin TCP Intel Pentium P55CL Intel 150MMX 320-pin TCP N 28F020-150 I ntel 2 56kx8Flash ROM 32-pin TSOP 82C557M O pti Viper N+ S ystem Controller 2 08-pin TQFP 8 2C556M O pti Viper N+ D ata Path Controller 1 76-pin TQFP 8 2C558E O pti Viper N+ P CI IDE ISA Xcelerator 2 08-pin TQFP PC87336VJG N ational D iskette Controller, IDE, 1 00-pin QFP Semiconductor Parallel Interface H8/3434 H itachi K eyboard Controller 1 00-pin TQFP C &T 65550B C hips & VGA Controller 2 08-pin FQFP Technologies OZ6730DO2Micro PC Card Controller 2 08-pin PQFP ESS1688 E SS S ound Controller 1 00-pin PQFP Intel Pentium P55CLM Microprocessor The 133 MHz Intel Pentium microprocessor used in the NEC Versa series computer is built on Intel’s advanced 3.3V BiCMOS silicon technology. The CPU has power management features. NEC adopted the chip specifically for its pipelined Floating Point Unit (FPU), and local interrupt management. 256K X Flash ROM The N28F020 flash ROM is a 40-pin, (TSOP). The chip allows easy updates to the system's BIOS if needed. More specifically, the ROM is flashed electronically, installing the latest BIOS revisions to the system. It is possible to reprogram the BIOS up to 100,000 times. See Section 2, Setup and Operation, for BIOS update procedures., Technical Information 1-17 The N28F020 provides the system upgrade capability as well as the following: 256 KB memory Quick-Pulse Programming Algorithm 150 nanoseconds (ns) maximum access time ETOX Nonvolatile flash technology CMOS low power consumption ROM BIOS The system uses a Flash ROM known as the system's ROM BIOS to store machine lan- guage programs. The BIOS size is 256 KB, consisting of the system utility (for PC cards, Auto Setup), system BIOS, video BIOS, and power management. The BIOS programs execute the power-on self-test (POST), initialize CPU controllers, and interact with the LCD indicator panel, diskette drive, hard drive, communication devices and peripherals. The system BIOS also contains Auto Setup and provides VGA controller support. The ROM BIOS is copied into RAM (shadowing) for optimum performance. The ROM BIOS contains both the system and video BIOS. The system BIOS is located in the upper portion of the device, video BIOS is located in the lower portion. System BIOS is located between F000h-FFFFh. The BIOS often changes after the product release to provide enhanced features or bug fixes. To acquire the latest BIOS release, the ROM is flashed electronically allowing the BIOS update to occur without removing the ROM. See Section 2, Setup and Operation, for BIOS upgrade procedures. VGA Controller The Chips and Technologies 65550B is a PCI 64-bit Graphics Accelerator. The integrated programmable linear address feature accelerates the graphics user interface (GUI) perform- ance. The controller also supports Hardware Multimedia and VESA interface standards. The controller provides advanced power management that helps to minimize power usage in: normal operation Standby (sleep) mode panel off power saving modes., 1-18 Technical Information Keyboard Controller The keyboard controller (H8/3434) supports a PS/2-style keyboard, mouse and password security feature. Refer to Appendix A for keyboard interface connector pin assignments. When data is written to the output buffer, the controller generates an interrupt, and requests the CPU to receive the data. The controller automatically adds an even parity bit to the data sent and waits for a response. The device must acknowledge that the data was successfully received by sending a response to the controller for each byte of data received. PC Card Controller The O2 Micro OZ6730D controller with the PCI bus, PC CardBus socket and configuration registers to provide: compliant with PCI 2.1 and 1995 PC card standards PC Card slots with hot insertion and removal independent Read and Write buffers for each direction Sound Integrated Circuit The ESS1688 chip is a single combo chip. This dynamic audio circuitry provides the fol- lowing: ISA 16-bit bus interface chip audio digital processor Plug and Play support high performance 16-bit Sigma Delta Stereo Codec Sound Blaster™ 16 register compatible mixer with AGC built-in analog joystick quad timer., Technical Information 1-19 Interrupt Controllers Using interrupts, it is possible to change the system’s code sequence. To change the se- quence, reassign the interrupt-levels. Fifteen interrupts can be used with a cascade connec- tion of two 82C59 interrupt controllers. Interrupt-level assignments 0 through 15 are listed in Table Section 1-4, in order of decreasing priority. These assignments can be adjusted by PnP function. Table Section 1-4 Interrupt Controllers Controller Master/Slave Priority Name Device Master 1 IRQ00 S ystem Timer M aster 2 IRQ01 K eyboard Master 3 –10 I RQ02 S econd Interrupt Controller S lave 4 IRQ03 P CMCIA Modem Card (default) S lave 5 IRQ04 C OM1 (Internal serial port) Slave 6 IRQ05 S ound Chip, MIDI (default) Slave 7 IRQ06 F loppy Disk Drive Controller Slave 8 IRQ07 L PT1 Default (internal printer port) Slave 9 IRQ08 R eal Time Clock S lave10IRQ09 M IDI Master11IRQ10 N ot used Master12IRQ11 N ot used Master13IRQ12 I nternal Glide Pointer or External PS/2 Mouse Master14IRQ13 C o-Processor M aster15IRQ14 Hard Drive Master IRQ15 CD-ROM, 1-20 Technical Information Table 1-5 DMA Channel D MA Channel Assigned Device DMA0 E nhanced Printer Port DMA1 S ound Chip (default) DMA2 F DD Controller DMA3 N ot Used DMA4 C ascade from DMA Controller, P DMA5 N ot Used D MA6 N ot Used DMA7 N ot Used POWER MANAGEMENT OVERVIEW Power Management in the NEC Versa lets you conserve energy, save battery power, extend the life of your LCD backlight, and protect against data loss due to low battery power. Set some features to function automatically or activate them manually with the keyboard or a button. It is wise to keep Power Management features enabled, even when using AC power. The system arrives set up with many power-saving features already enabled. See the fol- lowing table. Table Section 1-6 Automatic Power-Saving Features D efault Device Timeout Comment Video 2 minutes V ideo turns off after there is no keyboard or VersaGlide input for the specified timeout. Hard Disk 15 seconds H ard disk motor stops when hard disk is not accessed for specified timeout. Standby 2 minutes S ystem enters Standby mode after total system inactivity. You can change the timeout period for any of the devices using Setup. See Section 2 for Setup utility procedures., Technical Information 1-21 System Power Management The system power management consists of the following operation modes. These modes are: Active Mode In active mode, the system uses maximum power. It operates with the default clock speed. The system continues to run at this speed unless overwritten by the power management features. Standby Mode The system switches automatically to Standby mode. This eliminates unnecessary power consumption when you operate the system on bat- tery power or AC. Standby mode shuts down the LCD panel, providing privacy as well as power savings. Suspend Mode Suspend mode causes the CPU power down, local devices to shut down, and register values to be stored in RAM. The system resumes Active mode when you press the Power button or the system is set to resume at a certain time of day. Suspend mode lets you save power with- out first saving the working data. Press the Power button to enter Suspend mode when you need to be away from the system for a short period of time and want to return to where you left off. Local Power Management Use Auto Setup to select one of four power management settings for local devices. These include Maximum Battery Life, Good Battery Life, Good Performance, and Maximum Performance. The power management levels are also available during AC operation. The NEC Versa computer ships with Longest Battery Life as the default power management setting. See Section 2 for specific procedures on using Auto Setup to select the power man- agement settings. When set to Maximum Battery Life, CMOS will set local device timeout values, a local stand-by timeout value, and a suspend timeout value to ensure the longest battery life. The Maximum Performance setting selects CMOS values that will provide minimal energy sav- ings and a shorter battery life. The custom settings enable end-users to set the timeout val- ues of their choice. PLUG AND PLAY The NEC Versa features Plug and Play functionality. Plug and Play is the ability of the BIOS and/or operating system to dynamically assign system resources to a newly installed device without user intervention. For example, you can suspend the system, add an external keyboard, mouse, or monitor, and when you resume working, the NEC Versa recognizes the devices that have been con- nected to it. Similarly, you can remove external devices in Suspend mode and the NEC Versa detects the status when resumed., 1-22 Technical Information

SPECIFICATIONS Table Section 1-7 provides a complete list of NEC Versa series system specifications.

Table Section 1-7 Specifications I tem S pecification Chassis Configuration S ize W idth: 11.7 in. (303 mm) D epth: 9.04 in. (229.5 mm) Height: 2.05-inch (52.0 mm) W eight: 6.8 to 7.3 lb (3.1 to 3.3 kg), Exact weight depends on LCD and battery type. Keyboard P S/2 compatible, 86-key standard (79-key for UK and Germany) (includes Fn Key for ROM-based functions) Device Slots T wo PC Card slots that support up to two optional cards- oriented one on top of the other O ne 3 1/2-inch x 0.75-inch high slot, front access for standard hard disk drive Two memory connectors for optional memory DIMM’s, located on the bottom of system. P ower 1 00 to 240 Vac at 50 or 60 Hz O utput Voltage — 15 V DC, 1.8 A and 18V 1A) Battery Pack Li-Ion Weight .88 lb (400 Kg) V oltage 14.4 V Capacity 2700 mAH Battery Life Approximately 1hr 40min to 3 hours (depending on model and power management settings) Recharging Time Approximately 3 hours when the system is on or off B ridge Battery Backs up memory contents up to 1 hour with a fully charged battery in Suspend mode NiMH Weight 1.32 lb (400 Kg) Voltage 9.6V Capacity 3500 mAH B attery Life Approximately 2 hours to 4 hours (depending on model and power management settings) R echarging Time Approximately 3 hours when the system is on or off, Technical Information 1-23 Table Section 1-7 Specifications Item S pecification Bridge Battery B acks up memory contents up to 1 hour with a fully charged battery in Suspend mode Front Panel Controls P ower Button/Suspend Button B rightness Control (TFT Model) Contract Control (DSTN Model) LEDs P ower LED Hard Disk LED CD-ROM LED D iskette Drive LED C ap Lock LED NumLock LED P ad Lock Battery Battery Status LEDs System Board C PU Intel Pentium 133 MHz or 150MHz with 256 KB L2 cache pipeline burst SRAM, 64-bit Peripheral Component Interconnect (PCI) bus architecture and built-in numeric coprocessor Clock Speed 1 33 Mhz or 1 50 MHz CPU Bus Speed 6 6.6 Mhz (133 MHz) 6 0 Mhz (150 MHz) F lash ROM 2 56 KB: E28F002BC-T1200 C onnector Support S erial — 1 port, 9-pin D-sub Infrared —1 on rear of system, IrDA-1 compatible VGA — 1 port, 15-pin high-density D-sub E xternal Keyboard/External Mouse — 1 port, PS/2, 6-pin MiniDin (input facility will not support both devices at the same time) Expansion — 1 port, 200 pins for optional NEC Port Replicator Mono MIC IN — 1 port, 3-pin, Mini Pin Jack S tereo Headphones — 1 port, 3-pin, Mini Pin Jack, .5 watts per channel Stereo Line-In — 1 port, 3-pin, Mini Pin Jack DC In — 1 port, for AC adapter cable, 1-24 Technical Information Table Section 1-7 Specifications Item S pecification Memory S ystem Memory 16 MB EDO (On PCB Board), Optional 2 DIMM slots, RAM may be added only by inserting 2 DIMM cards of equal MB value. E xpandable in 8-MB, 16-MB, 32-MB M aximum 80-MB V ideo RAM 1 .0-MB TFT 1.5-MB DSTN Video Interface (VGA) N EC Versa 2650CDT and 2655CDT models 12.1-inch high resolution active matrix Thin Film Transistor (TFT), Super VGA (SVGA) backlit color LCD, 800 x 600 pixels resolution, 0.3 mm dot pitch, 64,000 colors NEC Versa 2530CD, 2635CD, 2650CD and 2655CD models 12.1-inch DSTN color LCD, 800 x 600 pixels, 0.3 mm dot pitch, 64,000 colors Internal Device Support Diskette Drive 3 1/2-inch, 1.44-MB (thin-height) H ard Disk Drives I DE interface (built-in), 2 1/2-inch x 1-inch high (thin-height) System ships with the 1.44-GB hard disk drive. 1 0x CD-ROM Reader T en speed CD-ROM reader E xternal Device Support C RT Displays up to 1024x 768 resolution x 256 colors Mouse PS/2-compatible mouse Keyboard B uilt-in 85/86-key keyboard with 12 programmable function keys, embedded numeric keypad and special function control keys, dedicated screen control keys, and inverted “T” cursor keys / IBM enhanced 101/102-key compatible keyboard, Technical Information 1-25 Table Section 1-7 Specifications Item S pecification S oftware Standard W indow 95, or MS-DOS® version 6.22 Windows® for Workgroups version 3.11 M cAfee VirusScan™ McAfee WebScan™ O fficial Airline Guide (OAG®) P ointCast Network Netscape Navigator LapLink® Traveling Software V ideoSaver™ (Separate CD) CardWizard™ (Windows for Workgroups Only) M ediaMatics Arcade™ MPEG Player (Win 95 Only) Xing MPEG Player (Windows for Workgroups Only) Microsoft Works (Windows 95 Only models) Microsoft Money (Windows 95 Only models) Return of Arcade (Windows 95 Only models) Microsoft Sampler (Windows 95 Only models) M icrosoft Internet Explorer (Separate CD) MPEG Movie (Models 2655CD and 2655CDT only) R ecommended Environment Temperature O perating 41° to 104°F (5° to 35°C) Storage (-20° to 60°C) Transportation (-20° to 60°C) H umidity Operating 20%RH to 80%RH Storage 10%RH to 80%RH Transportation 10%RH to 80%RH Max Wet Bulb Temperature Operating 26°C Storage 26°C Transportation 26°C, 1-26 Technical Information Table Section 1-7 Specifications Item S pecification Allowable Vibration Operation 5 to 150Hz, 0.25G, XYZ 3 Directions D rop Testing Packed H eight: 90cm 10 - 15Kg 1 cornor, 3 edges, 6 faces Administrative Compliance U .S.: FCC, UL Canada: CSA, DOC Germany: VDE, TUV, CE Australia: AS for AC adapter only Other Compliance P C95 Compliance Energy Star VESA & PnP VESA PnP ISA Windows 95 Logo,

Section 2 Setup and Operation

This section provides setup and operation information for the NEC Versa series system (including cabling, power-on verification and using the Setup utility, from this point on re- ferred to as “Setup” only). UNPACKING THE SYSTEM Find an area away from devices that generate strong magnetic fields (electric motors, transformers, etc.). Place the shipping carton on a sturdy surface and carefully unpack the system. The carton contents include the system, AC adapter, AC power cord, battery, soft- ware CDs, and user documentation. HARDWARE SETUP When connecting power and signal cables, do the following.

NOTE

Always plug the AC adapter cord into an easily accessible outlet. 1. The power switch turns the system on or off. Press to turn it on; press again to turn it off.

LED AC

Power Port AC AC Power Cable Adapter Figure 2-1 AC Adapter 2. Connect the AC adapter cable to the power port on back of the NEC Versa., 2-2 Setup and Operation 3. Plug one end of the AC power cable into the AC adapter and the other end into a properly grounded 120- or 240-volt wall outlet.

NOTE

Do not cover or place objects on the AC adapter. This will allow heat to dissipate properly. 4. Ensure that all connections are properly seated and secure. ! CAUTION This equipment uses an ungrounded power cable. Replace the cord if it be- comes damaged. U.S. and Canadian replacement cords must be UL- approved (CSA certified in Canada) type SPT-2, 18 AWG, 2-conductor cord with a permanently attached NEMA type 5-15P plug at one end, and a per- manently attached connector body on the other. Cord length may not ex- ceed 15 feet. Outside the U.S. and Canada the cord must be rated for at least 250VAC at 10 amps, and must indicate international safety agency approval. The plug must be a type appropriate for the country where it is used. O btain replacement cords at an authorized service center. The replacement must be of the same type and voltage rating as the original cord. 5. Press the Power button to power on the computer. LCD Panel LCD Slide Bar Status Power LEDs Button VersaGlide

NEC

Speaker Speaker Microphone Hard Drive Battery Bay CD-ROM Reader Diskette Drive Figure 2-2 Powering On the System, Setup and Operation 2-3

NOTE

If operating the system on DC power, verify that the system has a charged battery pack installed. Cable Connections Figure 2-3 shows the external connectors for the system. Where appropriate, secure cables by tightening the cable holding screws. Table 2-1 describes the I/O connectors on the rear of the system. For pin assignments, see Appendix A. Port Replicator Latch IR Port Keyboard AC Power Mouse Port Port Expansion Serial Port Monitor Parallel Port Port Port Figure 2-3 Power and I/O Connector Locations T able 2-1 I/O Connector Descriptions I/O Connector Function IR Port The infrared port allows the transfer of files between the NEC Versa and an IR-equipped computer, or printing to an IR-equipped printer without using cables. Keyboard/Mouse Port Connects to a PS/2-style mouse, or a 101-key, external PS/2-style keyboard. Expansion Connector P rovides a 200-pin connector to attach the optional NEC Port Replicator 2600. Monitor Port C onnects to a 15-pin external CRT. Enhanced Parallel Port C onnects to a 25-pin parallel device. Serial Port Connects to an RS-232C device., 2-4 Setup and Operation POWER SOURCES The NEC Versa can be powered using two different sources, as follows: the AC adapter connected to an electrical wall outlet (using AC power) the battery pack The following sections summarize the power sources. Using the AC Adapter Use the AC adapter and power cable that came with the NEC Versa to run the computer on alternating current (AC) power, or to recharge the battery pack. Use the AC adapter when- ever a wall outlet is nearby. ! WARNINGDonot attempt to disassemble the AC adapter. The AC adapter has no user-replaceable or serv- iceable parts inside. Dangerous voltage in the AC adapter can cause serious personal injury or death. The AC adapter is intended for use with a computer. Both must meet EN60950 standards. Keep the adapter connected whenever possible. The AC adapter charges the battery whether or not you are using the NEC Versa. Figure 2-4 NEC Versa AC Adapter See the “Hardware Setup” earlier in this section for steps on connecting the AC adapter., Setup and Operation 2-5 Using the Main Battery Pack The NEC Versa 2600 Series system comes with either of two rechargeable batteries: a Nickel Metal-Hydride (NiMH) battery pack, or a Lithium-Ion (Li-Ion) battery pack (models 2650CDT and 2655CDT only).

NOTE

Although the battery is fully charged at the factory, transit and shelf time may reduce the initial battery charge. We recommend that the first time you use your system, you connect it to AC power using the AC adapter. This will also recharge your battery. Your NEC Versa 2600 Series system provides two tools to help you keep track of the main battery's power level: Battery Gauge utility, which lets you quickly identify how much battery power you have available Windows 95 Battery Gauge, which lets you quickly identify how much battery power you have available. When remaining battery power falls to 10%, the system emits a single beep; when battery power falls to 5%, the system beeps once every 60 seconds. Installing the Battery Pack Install the battery pack in your system as follows. (For information about replacing a battery pack, see “Replacing the Battery Pack,” later in this section.) ! CAUTIONBesure to save your data before replacing the battery pack or connecting the AC adapter. Fail- ure to do so can result in data loss. 1. If your system is on, save your data, close any applications running, and power off the system. 2. Align the battery pack with the Battery Pack bay. Make sure the battery contacts are aligned properly with the connector inside the bay. Install the battery pack only in this bay., 2-6 Setup and Operation 3. Push the battery pack into the bay until the locking latch on the bottom of the system clicks into place. How to Recharge the Battery Pack When battery power gets low, connect your system to the AC adapter and AC power to re- charge the battery pack. Your system is again ready for use and recharges during use. The recharge time is about the same, if powered on or powered off. (see "Using the AC Adapter.") If AC power is not available, you can replace the battery as follows: 1. Place your system in Suspend Mode. 2. Remove discharged battery pack and install a charged battery pack (see "Replacing the Battery Pack" for removal instructions). 3. Press the Power switch to resume your system. ! WARNING To prevent accidental battery ignition or explosion, adhere to the following: Keep the battery away from extreme heat. Keep metal objects away from the battery terminals to prevent a short circuit. Make sure the battery is properly installed in the battery bay. Read the precautions printed on the battery. Battery Handling Review the following before handling either an NiMH or an Li-Ion battery. Use batteries only in the computer for which they are designed. Mixing other manufacturer’s batteries can deteriorate battery and equipment performance. Turn off power to the system after use. Keeping system power on can degrade battery performance and shorten battery life. Clean the battery terminals with a dry cloth if they get dirty. When not in use, store the battery in a cool dry area., Setup and Operation 2-7 The following symptoms indicate that battery life is nearing an end. Discard batteries that display these symptoms: shorter work times discoloration, warping hot to the touch strange odor. Replacing the Battery Pack Replace the battery pack installed in your NEC Versa 2600 system as follows. 1. Save your files, exit Windows, and turn off system power. 2. Close the LCD and turn the system over. 3. Press the battery release latch and slide the battery out of the system, as shown in the following figure. Battery Release Latch Battery Pack Figure 2-5 Battery Release Latch 4. Insert the new battery into the bay, pressing it firmly until the release latch clicks., 2-8 Setup and Operation Battery Pack Figure 2-6 Inserting Battery Pack Turn the system over, open the LCD panel, and power on the system. Battery Life The NEC Versa 2600 battery life, on a single charge, is as follows. For NiMH batteries 2 − 4 hours, with power management enabled 2 hours, without power management for Li-Ion batteries 2 − 3 hours, with power management enabled 1 hour and 40 minutes, without power management These estimates are made under the following conditions: When the battery is new and fully charged When no external peripherals are connected to the NEC Versa. Your actual operation time on a single battery charge may vary significantly, depending on the intensity of system usage. Extending Battery Life While on the road, it is important to be aware of the simple things you can do to extend the life of the system’s main battery. Use the power management features enabled through Setup to extend battery life., Setup and Operation 2-9 Battery Charging The time to completely recharge your main battery is approximately 3 hours whether the system is powered on or powered off as follows: For maximum battery performance, fully discharge the battery before recharging it. To do so, unplug the AC adapter, turn off power management features (through Setup and Win- dows), and turn on the system. (Do not leave any applications running.) Once the battery is fully discharged, plug in the AC adapter and recharge the battery. The warning beep that sounds when battery power becomes critically low is always a true indicator that battery power is low. Be sure to save your data when you hear the beep and take proper steps to provide power to your system. Battery Precautions Always comply with the following battery precautions. ! WARNING There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions. Keep the battery away from heat sources including direct sunlight, open fires, microwave ovens, and high-voltage containers. Temperatures over 60ºC (140ºF) may cause damage. Do not drop or impact the battery. Do not disassemble the battery. Do not solder the battery. Do not puncture the battery. Do not use a battery that appears damaged or deformed, has any rust on its casing, is discolored, overheats, or emits a foul odor. Keep the battery dry and away from water. Keep metal objects away from battery terminals. Metal objects in contact with the terminals can cause a short circuit and damage. If the battery leaks onto skin or clothing, wash the area immediately with clean water. Battery fluid can cause a skin rash and damage fabric. If battery fluid gets into eyes, DO NOT rub; rinse with clear water im- mediately and consult a doctor. Take extra precautions to keep a leaking battery away from fire. There is a danger of ignition or explosion., 2-10 Setup and Operation Battery Disposal Before disposing of the main battery, put adhesive tape on the terminals. The main battery is made of either Nickel Metal-Hydride (NiMH) or Lithium Ion (Li-Ion). Contact your local waste management officials for information regarding environmentally sound collection, recycling, and disposal of batteries. Internal Batteries Your nickel metal-hydride or lithium Ion battery is the main power source in your NEC Versa 2600 computer. Appendix B lists NiMH and Li-Ion battery specifications. In addition to this battery, a bridge battery provide power for system backup. Extending Battery Life While on the road, it is important to be aware of the simple things you can do to extend the life of the system’s main battery. One way is to keep the LCD backlight setting to Low in- stead of Medium or High. You can toggle between these three settings by pressing the function keys, Fn-F1 and Fn-F2. Or, slide the backlight control to a dimmer level., Setup and Operation 2-11

OPERATING CONTROLS The following section describes system controls, the LEDs, and function keys. Refer to Figure 2-7 to locate system controls and switches. Table 2-2 describes the con-

trols. LCD Panel LCD Brightness Control Status Power LEDs Button VersaGlide Speaker Speaker Microphone Hard Drive Battery Bay CD-ROM Reader Diskette Drive Figure 2-7 Panel LEDs and Controls Table 2-2 Control and Switch Functions C ontrol Function Status LEDs L EDs indicators show system status. Power LED L ights green when the computer is powered on. Lights amber and blinks at low battery levels. Power Button T urns the system on when pushed. Turns the system off when pushed to the right again. Microphone A llows the user to record monophonic sound directly into the system H ard Disk Drive Bay Push latch down to remove the hard disk drive installed in the system. Release Latch K ensington Lock Enables the user to add an optional Kensington Lock to prevent unauthorized use of the computer. Volume Control C ontrols the speaker or headphone volume. H eadphones Connects external headphones or speakers to the NEC Versa. Plugging in headphones disables the built-in system speakers. Microphone In C onnect to an external microphone for monophonic recording. Plugging in an external microphone disables the built-in microphone. Line-out C onnect this port to a Line-in port on another audio system to play or record. Line-In U se a cable to connect to the Line-Out port on another audio system. AC Port U se the power jack to attach the NEC Versa to a DC power source., 2-12 Setup and Operation Status Icons and LEDs The NEC Versa status information is located in the rear center of the system. Figure 2-8 shows the status icons. Power Hard CD-ROM Diskette Disk Drive Reader Drive

A

Caps Num Pad Battery Lock Lock Lock Figure 2-8 Status Icons Status Icons The NEC Versa uses eight icons to let the user determine system status, as follows. Power – Lets you know that power to the system is turned on. This LED is posi- tioned so that you see the power state whether the LCD panel is opened or closed. lights green when the system is powered on. lights amber when battery power is below 10%. flashes amber when battery power is below 5%. ! CAUTIONBesure to save your data immediately when the Power LED turns to yellow, flashes yellow, or the system beeps. Failure to do so may result in data loss. Hard Disk Drive – Lights when the NEC Versa 2600 writes data to or retrieves data from the hard disk drive. CD-ROM Reader – Lights when data is read from a compact disc in the CD- ROM drive., Setup and Operation 2-13 Diskette Drive – Lights when data is written to or retrieved from the 3.5-inch diskette drive. Caps Lock – Lights when Caps Lock mode is in effect. Num Lock – Lights when Num Lock mode is active. Pad Lock – Lights when the embedded numeric keypad lock is on. Battery Charging Status – Lights to indicate the following: – Green – the battery is fully charged. – Amber – the battery is recharging. – Light Off – the AC adapter is disconnected. Function Keys (Fn Keys) Function keys set specific system parameters and are built into the ROM. When using these keys, simultaneously press Fn and the corresponding function key. See Table 2 for a list of ROM-based hot keys. ROM-based hot keys change system parameters temporarily. Hot Key functions operate until the system is turned off or reset. Table 2-3 Fn Key Operations Key F unction Fn-Esc/Setup During boot-up, opens the system’s Setup program, where you can set, view or change system parameters. Fn-F1 D arkens the LCD brightness. Fn F2 B rightens the LCD brightness setting. Fn F3 L CD/CRT, toggles between LCD, CRT and simultaneous modes. F n F9/NumLk Activates the embedded numeric keypad. Hold down Fn, then press a numeric keypad key to use that key (or Use Fn- F10/PadLk). Updating the System BIOS Use the following steps to update the NEC Versa system BIOS with the BIOS Update diskette (BUD). Specifically, the BIOS is the code transmitted onto your system’s micro- processor, or central processing unit (CPU)., 2-14 Setup and Operation

NOTE

You only need to update the BIOS if NEC makes significant improvements or fixes to the current system BIOS. If you determine that the default BIOS needs an upgrade, to receive a copy of the BUD contact the NECCSD Versa Diskette Fulfillment Center at (800) 842-6446, or the NECCSD Customer Service and Support (800) 632-4525, Fax (508) 635-4666, or the NECCSD Bulletin Board (508) 635-4706.

NOTE

You should only use the BIOS upgrade diskette for the specific model. POWER-ON SELF-TEST (POST) Each time the system is powered on, the system checks the working status of components through an automatic power-on self-test (POST). The test checks the system configuration for any discrepancies. If the message is an Invalid Configuration message, press Esc to enter the Setup util- ity. The system collects Setup data and lists the changes detected in the current parameter settings. While in Setup, follow the on-screen instructions to review the settings, and make any necessary corrections. If no error messages appear but the system still malfunctions, check the items in the follow- ing list. The power switch for each peripheral is on. All cables and power cords are tightly connected. The electrical outlet is working. The brightness and contrast controls for the display are adjusted properly. All options are properly installed.

NOTE

If the system parameters (date, time, op- tions, etc.) were not been entered for the present configuration, enter them when you complete the setup procedures (see “System Parameters” in this section)., Setup and Operation 2-15 POST Errors Error messages appear during POST when configuration information does not match the settings stored in memory. Error message also appear if the system loses the configuration information due to hardware failure. Refer to Table 2-4 for a description of POST error messages. T able 2-4 POST Error Messages MESSAGE W HAT TO DO Diskette drive failure T he diskette drive does not work or is not properly connected. Check that the drive is securely connected and power is on. Run the SCU to check the diskette drive parameters. If problem persists, the drive might need repair. Diskette read failure R emove the diskette from the drive and try another diskette. If you cannot read from the next diskette, your drive might need repair. N o boot device Go into the SCU and check the hard disk type available defined. Unless you had a different hard disk installed, the setting should be “Auto.” Correct the setting. I nvalid configuration Start the SCU, check the system parameters information – run SCU set, and correct them. Exit and save the parameters set. Connect the AC adapter to charge the internal backup battery. Restart the SCU and set the correct parameters. Real time clock failure Set the time and date using the SCU. Exit and save to update the parameters. Connect the AC adapter to charge the internal backup battery. Time-of-day not set R un SCU and set the time and date. Exit SCU and save to update the time and date. Fixed disk S tart the SCU. Check that the hard disk type configuration error specified is “Auto.” If not, change it to Auto under the Hard Disk option in the Standard menu. Exit and save to update the parameters. If a problem still exists, the hard disk might need repair., 2-16 Setup and Operation T able 2-4 POST Error Messages MESSAGE W HAT TO DO Fixed disk failure S tart the SCU. Check that the disk type specified is “Auto.” If not change it to Auto under the Hard Disk option in the Standard menu. Exit and save. If a problem still exists, the hard disk might need repair. F ixed disk controller Start the SCU. Exit and save to update the failure parameters. If problems continue, the hard disk controller might need repair. Keyboard clock line The keyboard might need repair. failure Keyboard data line The keyboard might need repair. failure Keyboard controller The keyboard might need repair. failure K eyboard stuck key A key is jammed. Remove any obstructions. failure If the error message remains, the keyboard might need professional cleaning or repair.

NOTE

If a display related error occurs, it is in- dicated by beeps. Display related errors usually require a system board replacement. SETUP UTILITY The NEC Versa 2600 Setup program lets you view and set system parameters. Setup also in- cludes security features that protect your system from unauthorized use. Use Setup to set the current time and date customize your operating system to reflect your computer hardware secure your system with a password balance your performance needs with power conservation., Setup and Operation 2-17

Setup Utility

How to Enter Setup

Access Setup immediately after you power on your Versa 2600, during boot up. Just press

the Fn and Esc keys simultaneously when the following prompt appears. to enter System Configuration Utility

NOTE The Fn key is located on the lower-left

of the NEC Versa 2600 keyboard. The Esc key is located on the upper-left of the NEC Versa 2600 keyboard.

When you press Fn Esc and enter Setup, the system automatically displays current system

parameter settings. How to Use Setup

The following sections describe how to use Setup, including these topics:

The Setup Screen Using keys Checking and setting system parameters. The Setup Screen

The Setup screen looks similar to the one following and has five separate areas.

Menu Bar SystemSoft SCU Nov 18, 1996 12:25:23 pm Startup Components Security Key Power Miscellaneous Exit System Information System CPU Type = Pentium Hard Drive : 1031 MB CPU Clock = 133 MHz Current Display : LCD LCD type : TFT (800x600) Battery Remain : 54% Password : Disable Memory Base = 640 KB Extended = 15360 KB Total RAM = 16384 KB Cache (Ext) = 256 KB Press key to activate menus, and cursor keys to navigate. Spacebar or keys accept menu item. key cancel current action. Item Specific Help Area, 2-18 Setup and Operation Menu Bar Each of the seven menu items has its own drop-down screen, where you may view and edit the system configuration settings. System Information The left part of the screen. This area describes the current hardware, battery status, and password setting. System The upper-right part of the screen. This area contains information about your system’s CPU. Memory The bottom right part of the screen. These lines display the base and extended memory, total RAM, and the Cache size, all in KB. Item-Specific Help Area The bottom of the screen describes the highlighted system configuration parame- ter and the available settings for that parameter. Using Keys The following table lists Setup keys and their functions. Table 2-5 Setup Key Functions Key What It Does Alt A ctivates the menu bar, by highlighting Startup. ← → S crolls, left or right, along the menu bar, and highlights the current menu selection Enter or Opens the currently highlighted menu or parameter item. Spacebar After highlighting a selection with the ↑ ↓ arrows, use the Spacebar to select a highlighted parameter setting. Use the Spacebar or Enter for OK or Cancel. Home/End M oves to the first/last parameter of the currently open drop-down screen. ↑ ↓ Moves the cursor up or down among the parameters on a drop-down menu. Tab F or some parameter settings, moves the cursor between the subfields. For example, for Startup / Date and Time, Tab moves the cursor from day to month to year to hour to minute to second, and to the OK and Cancel options. Esc Closes the current window or drop-down screen, de- activates the menu bar, or closes the Setup system configuration utility., Setup and Operation 2-19 Checking/Setting System Parameters See the following table for a list of parameters, their factory default settings, and alternate settings. As you hightlight each parameter, its available settings are explained in the Item- Specific Help in the bottom of the screen. Reset the parameters on the displayed screen to their factory default settings, selecting De- fault Values on the Exit screen. Table 2-6 Setup Parameters D efault A lternate Parameter Setting Settings Startup Date and Time DAY, MO, YR, HR, MIN, SEC Boot Device Floppy Disk A/ H ard Disk C Hard Disk C Boot Display LCD CRT, LCD and CRT Power Switch ON/OFF Suspend/Resume Components Serial / IR Ports Serial Ports COM1(3F8h) COM2(2F8h) IRQ3, IRQ4 COM3(3E8h) IRQ4, COM4(2E8h) IRQ3

DISABLED

IR Ports COM1(3F8h) IRQ4, COM2(2F8h) COM3(3E8h) IRQ4, IRQ3 COM4(2E8h) IRQ3,

DISABLED

Parallel Port LPT1(378h) L PT2(278h), LPT3(3BCh),

DISABLED

Parallel IRQ I RQ7 I RQ5 Parallel DMAC LPT DMA DMA0 DMA1 Parallel Port Type LPT Port Type Bidirectional (PS- Standard AT 2) (Centronics), EPP, ECP Audio Base Port 2 20h 2 30h, 240h Audio, Midi, IRQ I RQ5 I RQ9, IRQ10, IRQ5 IRQ9, IRQ5, IRQ11, IRQ10 IRQ9, IRQ10, IRQ11, 2-20 Setup and Operation Table 2-6 Setup Parameters Default A lternate Parameter Setting Settings Audio DMAC D MA1 DMA0 Midi Port 330h 3 00h, 320h, Disabled Speaker Enabled D isabled (unchecked) (checked) Security Password no password user defined Key Keyboard Type U.S.A. U.K., French, Germany, Japanese Typmatic Delay 500 ms 250 ms, 750 ms, 1000 ms Power Maximum Battery Life Disabled Enabled (checked) Good Battery Life Disabled Enabled (checked) Good Performance Disabled Enabled (checked) Maximum Performance Disabled Enabled (checked) User Setting Battery Enabled Video Timeout 2 Min 1, 2, 3, 4, 6, 8, 10 Min Always On Disk Timeout 15 Seconds 15, 30, 45 Sec, 1, 2, 3, 4 Min, Always ON CPU Throttle Good Maximum Power Performance Savings, Good Power Savings, Standby Timeout 2 Min Maximum Performance Always On, 1, 2, 3, 4, 6, Suspend Timeout12Minutes 8, 10 Min Brightness Medium 2, 4, 6, 8, 12, 16, 20 Min Lid Close Suspend Low, High Standby, Backlight off User Setting AC Video Timeout Always On 1, 2, 3, 4, 6, 8, 10 Min Disk Timeout Always On 15, 30, 45 Sec, 1, 2, 3, 4 Min CPU Throttle Maximum Maximum Power Performance Savings, Good Power Savings, Standby Timeout Always On Good Performance Suspend Timeout Always On 1, 2, 3, 4, 6, 8 10 Min Brightness High 2, 4, 6, 8, 12, 16, 20 Min Lid Close Suspend Low, Medium Standby, Backlight off PCMCIA Power (Suspend) Enabled D isabled (unchecked) (checked), Setup and Operation 2-21 Table 2-6 Setup Parameters Default Alternate Parameter Setting Settings M iscellaneous Low battery beep Enabled Disabled (unchecked) Wake Up Alarm (checked) One Time, Every Day Hour Disabled User input Minute User input L2 Cache Enabled D isabled (unchecked) (checked) Exit Save and Exit To save the current setup parameters (with changes) and exit setup. Save and RebootTosave the current setup parameters, then reboot the computer. Exit (No Save) T o exit Setup without saving any parameter setting changes. D efault SettingsTorestore the default Setup settings, then Exit. Version Info D isplays information about Setup and BIOS. As a new user, it is important to check and perhaps change the following parameter set- tings. Startup Menu Date and Time Set the System Date and Time to the current date and time. Use numerical input (remember that the hour setting begins at 0 and ends at 23). The settings remain in memory even after you turn off system power. Boot Device Select the drive you want your system to read from when the computer starts up. Specify the boot sequence, by instructing the system to look only to the Hard Disk, drive C first to the Diskette, drive A, and then to drive C., 2-22 Setup and Operation Boot Display Lets you specify the system display screen as the NEC Versa 2600 LCD screen (the default), an external CRT display, or both. Power Switch Lets you determine how the Power Switch (located on the hinge beneath the LCD display) functions after the NEC Versa 2600 is powered on. Suspend/Resume lets you use the Power Switch to save battery power. This selection is appropriate for Windows 95 systems, which automatically power off when you shut down the Windows 95 software. ON/OFF (the default) turns the system on or off, and should be used by Win- dows for Workgroups systems. Components This drop-down screen displays configuration settings for the serial and parallel I/O ports as well as the sound device and speakers. The Speaker option displays a check mark which means the system’s built-in speakers are enabled (the default). An empty underscore means the speakers are disabled. Security Your NEC Versa 2600 supports a password for system security. Using the Security screen, you can require that a password be entered at each startup or boot. You are not prompted to enter a password until you set an initial password. Your system is not protected until you set a password. Once you set a password, you must enter it before your system will boot up. This feature allows only an authorized user to access your system, including the Setup program where you can set or change system parameters. Setting an Initial System Password Set an initial password as follows. 1. Select Security from the menu bar. 2. Open the Password screen by pressing Enter. 3. Tab to the “Enter Password” field and enter a password up to eight characters long. Press Enter on the keyboard. 4. Reenter your password as prompted for verification. Press Enter and write your password down and keep it in a secure place in case you forget it. O nce you have successfully set a password, a check mark appears next to the word “Password” on the Security drop-down menu., Setup and Operation 2-23 5. Press Esc as many times as needed to close the screen, and to exit Setup. When you exit Setup, be sure to save your changes reboot your system. Removing a Password Remove a previously set password by opening the Password screen and entering the previ- ously set password. Press Enter on the keyboard. (The check mark should be removed from the word “Password” on the Security drop-down menu.) Key These menu settings control how the NEC Versa 2600 keyboard functions, and includes the following options: Keyboard Type Lets you select the desired keyboard format. U.S.A. is the default. Typematic Delay Sets the time delay between the moment a key is pressed and the time the charac- ter appears on screen. The default is 500 milliseconds (ms). Typematic Rate Sets the number of characters that appear on-screen if a key remains pressed for a second. The default is 10 characters per second (cps). Power The Power drop-down menu lets you balance system performance and energy conservation, for both battery and AC operation, using the following parameters.

NOTE

Some operating systems such as Win- dows for Workgroups and Windows 95 have their own power management software which overrides CMOS settings. In this case, be sure to set your desired power management settings ac- cordingly. Battery Operation Maximum Battery life Sets power savings to a maximum and system performance to a minimum, by running the CPU at half speed all of the time. Good Battery life Provides good power savings and moderate system performance, by reducing CPU clock speed to one-half of its maximum speed any time the CPU is not en- gaged for one-half a second., 2-24 Setup and Operation Good Performance Provides high system performance and moderate power savings, by reducing CPU clock speed to one-half of its maximum speed any time the CPU is not engaged for eight seconds. Maximum Performance Sets system performance to a maximum and power savings to a minimum, by running the CPU at full speed all the time. User Setting Battery (the default setting) Lets you input your choice of performance and power saving parameters. See “Using Power Management,” later in this chapter, for details. AC and PCMCIA Operation User Setting AC Lets you set performance and power saving parameters for AC operation. Default settings are for maximum system performance. PCMCIA Power Permits PC Card socket power to remain on while the system is in Suspend Mode (see “Using Power Management.”) Miscellaneous Use this drop-down menu to set the following parameters: Low battery beep (default) This parameter lets you know when battery power is low, by emitting a beep once, when battery power falls to 10%, and every 60 seconds, when battery power falls to 5%. Wake Up Alarm Lets you specify Resume time for your NEC Versa 2600 anytime of day from Suspend mode one time only or everyday at the same time. L2 Cache Level 2 Cache speeds up your system’s data processing time, and is enabled (checked) by default., Setup and Operation 2-25 Exit Lets exit Setup with the following options: Save and Exit Saves changes, but does not reboot. The changes are effective only after the next system startup. Save and Reboot Saves changes and immediately shuts down and restarts the system, so parameter settings take effect immediately. Exit (No Save) Exits Setup, without saving changes. Default Settings Restores all Parameter settings to their default settings. Default settings take ef- fect on the next system startup. Using Power Management Power Management in the NEC Versa 2600 lets you conserve energy, save battery power, extend the life of your LCD backlight, and protect against data loss due to low battery power. You can set some features to function automatically or activate them manually with the keyboard or a button. Power Saving Modes The NEC Versa 2600 has three different power consumption states. These include: Active Mode — All components are turned on and active.

NOTE

Even in Active Mode, you can specify timeouts for the LCD panel, hard disk drive and CPU. See “Power Management Settings.” Standby Mode — Eliminates unnecessary battery or AC power consumption. The LCD panel, Hard Disk Drive and CD-ROM reader all shut down, and the Keyboard Controller and CPU slow down, providing both privacy and power savings. To end Standby mode, press any key and return to Active mode. Suspend Mode — Shuts down every system component, except those that preserve unsaved data in memory, or system status and PCMCIA cards if so configured., 2-26 Setup and Operation To end Suspend mode and return to Active mode, press the Power button on the hinge beneath the LCD panel and restart the system. You can set your system to enter Standby or Suspend modes automatically after a specified number of minutes of system inactivity. System activity includes key- board, VersaGlide, diskette or hard disk drive access, PC Card modem, network, or LAN card, serial, or printer port communications. Power Management Settings The system is shipped with many power-saving features already enabled. You can change the timeout period for these devices in Setup, under the “Power” menu, with the “User Set- ting Battery” and the “User Setting AC” parameters. The following table lists the default settings for “User Setting Battery” operation. Table 2-7 Automatic Power-Saving Features

DEFAULT

DEVICE TIMEOUT COMMENT Video Timeout 2 minutes S huts off video screen after the timeout specified elapses. H ard Disk Timeout15Seconds Stops the hard disk motor when the hard disk is not accessed for the specified timeout. CPU Throttle G ood Performance CPU “clocks down” to slower speeds. S tandby Timeout 2 minutes S pecifies when the system enters Standby mode after total system inactivity. Suspend Timeout 12 Minutes T his setting specifies how long the system remains in Standby mode before entering Suspend mode. Lid Close Suspend T his setting determines what power-saving action occurs when the notebook cover is closed while the system is on.

NOTE

In Windows 95 systems, power man- agement settings under Windows override the settings established in Setup. Make the Windows 95 power saving settings match those in Setup for the best results. Using Fn-F3 Press the Fn-F3 key combination to cycle through LCD only, CRT only, and simultaneous display modes when an external monitor is connected.,

Section 3 Troubleshooting

This section focuses on providing you with some information on basic troubleshooting as well as how to translate some system error messages. QUICK TROUBLESHOOTING The following table summarizes problems that may develop during system operation and lists suggested corrective actions. Table 3-1 Quick Troubleshooting P roblem Corrective Actions No power C heck that the AC adapter is plugged into the power connector of the system. Also, check that the AC adapter is plugged into a properly grounded AC power outlet. If using the battery as the main power source, check if the battery pack is the right type, is charged, and is inserted correctly. Check the powerboard of the system. Is it inserted into the main board connector properly? Otherwise, replace the powerboard. D ata on the LCD is unreadable Adjust the brightness control on the right side of the LCD panel. Check if the LCD cables are inserted properly. Also, check connections inside the LCD panel. Check if the installed VGA driver is correct. C heck the VGA controller chip on the main board for any loose solder. Replace the main board., 3-2 Troubleshooting Table 3-1 Quick Troubleshooting Problem Corrective Actions B attery power does not last long Make sure that power management features are enabled. R echarge the battery pack for 1½ hours before using again. Replace the battery pack. System halts during boot sequence Check the condition of selected boot device (diskette or hard disk) for bad boot track or incorrect OS files. T ry booting from a new bootable diskette and recopy or repartition hard disk. C heck for any BIOS error messages on the screen. R eplace the main board. I/O processing malfunctions C heck the connections of all internal devices. R eplace the main board. Diskette drive does not work C heck that the diskette drive cable is connected properly. S ee diskette type is correct and not faulty. R eplace the diskette drive. R eplace the main board. Hard disk drive malfunction Check if hard disk drive is set properly on CMOS. Check if disk drive is good. Replace the main board. M emory malfunction C heck that the memory module is inserted properly. R eplace the memory card. R eplace the main board. External keyboard or PS/2 mouse Check that the keyboard or mouse is connected doesn’t work properly. Power off system first before plugging in the device. R eplace the keyboard or mouse. R eplace the main board., Troubleshooting 3-3 Table 3-1 Quick Troubleshooting Problem Corrective Actions PC card does not work C heck the PC card driver installation for any IRQ or I/O address conflict. C heck that the PC card is inserted properly and all connections are set. If the PC card is a Type II card, install it in the system’s other PC card slot. R eplace the PC card. R eplace the main board. N EC VersaGlide doesn’t work Check that the mouse driver is properly installed. Check that the VersaGlide cable inside the system is inserted properly. Remove the VersaGlide and clean it. Check the keyboard controller chip for any cold or loose solder. Replace the main board. S erial device does not work C heck that the serial device driver is installed properly. Check that the serial device is connected properly. Replace the serial device. C heck the I/O controller chip on the main board for any cold or loose solder. R eplace the main board. P arallel device does not work C heck all connections. Check that the external device is turned on. Test another parallel device. Check the I/O controller chip on the main board for any cold or loose solder. Replace the main board., 3-4 Troubleshooting HELPFUL QUESTIONS Here are some helpful questions to ask when troubleshooting the system: Is there any external power source connected to the computer? Is the battery fully charged? Is the computer turned on and the Power LED activated? Are the LCD display controls set to the minimum level? Is the LCD display switched to the external monitor? Are all cables and devices connected properly and securely? Are all needed device drivers installed properly? Have you checked the AUTOEXEC.BAT and CONFIG.SYS files for errors? Is Suspend mode activated? (Press any key or press the Power switch to return the system to active mode.),

Section 4 Field Service Guidelines

This section contains preventive and corrective maintenance procedures for the following NEC Versa 2600 Series models: NEC Versa 2630CD NEC Versa 2635CD NEC Versa 2650CD NEC Versa 2655CD NEC Versa 2650CDT NEC Versa 2655CDT. Section 4 is broken into four sections, which are presented in the following order: “Preventive Maintenance” describes cleaning procedures and preferred handling procedures for sensitive components (for example disk drives, batteries). “Disassembly and Assembly” identifies all field replaceable parts with the re- mainder of the section containing the removal and replacement procedures for the field replaceable parts. “Illustrated Parts Breakdown” contains an exploded view diagram and a listing of field replaceable parts with part numbers. “Service and Product Information” lists NEC service and information telephone numbers. PREVENTIVE MAINTENANCE Preventive maintenance is limited to cleaning the plastic case, the keyboard, the display screen, and the diskette drive heads as required.

NOTE

Remove the battery and disconnect the AC adapter before performing any maintenance. Voltage is present inside the system unit and LCD even after the system is turned off., 4-2 Field Service Guidelines Cleaning the Notebook Exterior Use the steps below to clean the outer surface of the system. 1. Power off the system and remove all battery packs. Unplug all cables connected to the system. 2. Wipe the outside of the system, keyboard, and display with a soft, clean cloth. Remove stains with a damp, almost dry cloth. Use glass cleaner to clean the LCD. Apply the glass cleaner directly to the cloth and then wipe the LCD. Do not use solvents or strong, abrasive cleaners on any part of the system. 3. Clean the keys with a damp cloth. A small, soft-bristle brush may be used to clean between the keys. Make sure to use a damp cloth (not wet) to prevent moisture from seeping between the keyboard and the metal plate, possibly dam- aging the components under the keys. If the keyboard gets wet, thoroughly dry it before reassembling the system unit. Cleaning the Notebook Interior When servicing the inside of the notebook, remove dust and other foreign particles from inside the system unit as follows. 1. Remove the top cover and keyboard using the disassembly procedures discussed later in this section. 2. Dust or vacuum (with a rubber-tipped nozzle) the inside of the system, particularly the motherboard surface. Use care to avoid damaging or dislodging any components or cables. 3. Inspect all cables connectors for damage. Ensure that connectors are seated prop- erly before replacing the cover. Protecting the Disk Drives To protect the disk drives and data, back up the system disk periodically on diskettes. Peri- odically use a head-cleaning diskette in the disk drive to prolong the life of the drive and to help maintain data integrity. Here are some maintenance procedures to use when servicing a hard disk: Always back up the data files from the hard disk. Run a virus detecting program to check for possible virus infected areas on the hard disk. Use the preinstalled ScanDisk program to correct any errors found in the direc- tory and File Allocation Table (FAT). This also frees up space from any unused sectors., Field Service Guidelines 4-3 Never turn the computer off when the hard disk is being accessed. Never move or raise the computer while the hard disk is being accessed. Be especially careful not to jar the hard disk during access; this can cause a hard disk crash. Acquire a hard disk maintenance program like DEFRAG under DOS, or Norton Utilities SPEEDISK programs. These programs reorganize your hard disk by eliminating fragmentation and improves the hard disk access time. Handling the Battery Packs The battery packs furnished with the computer require reasonable care and handling to en- sure efficient operation and maximum life. Periodically inspect the battery terminals and the batteries for evidence of corrosion and oxide build-up. To ensure that the battery packs endure for a normal life cycle, always observe the follow- ing precautions when handling the battery packs: Do not drop the battery packs or subject them to excessive shock and vibration. Do not expose the battery packs to direct sunlight, moisture, chemical com- pounds, or extreme heat. Do not disassemble the battery packs. Do not use the battery packs to power other devices. Do not short the battery leads or connect the battery with reversed polarity. Never attempt to charge the battery packs in any way other than as described in this manual and the user’s guide. Always charge the battery packs as soon as possible after a low battery indica- tion. Maintaining the LCD Quality When it comes to screen problems, heat plays a big part. After a good working session, the typical routine is to shut the machine and close the cover. The display surface (no matter what type it is) radiates heat. When you close the cover, you trap the heat against the screen. Make sure to leave the computer's cover open for about ten minutes while the heat disperses, before closing the LCD., 4-4 Field Service Guidelines DISASSEMBLY AND REASSEMBLY This section contains step-by-step disassembly procedures for the system. Reassembly is the reverse of disassembly. Each procedure is supported by a simplified disassembly illus- tration to facilitate removal. The Illustrated Parts Breakdown and parts lists for the system unit are shown later. For complete disassembly of the system, follow the disassembly order listed in Table 4-1. To reassemble, follow the table in reverse order. Table 4-1 NEC Versa 2600 Series Disassembly Sequence S equence P art S ee Page 1 Battery Pack 4 -5 2 Hard Disk Drive 4 -6 3 Keyboard 4-7 4 Heat Shield and CPU Board 4-9 5 LCD and Top Cover 4 -11 6 VersaGlide Assembly 4-13 7 Sound Board 4-14 8 LED Status Board and IR Board 4-15 9 10X CD-ROM Reader and Heat Shield 4-1510Bridge Battery and FDD/HDD Connector Board 4 -16 11 D iskette Drive 4-17 12 P ower Board 4-18 13 M ain Board 4-18 When disassembling the system unit, follow these general rules. Turn off and disconnect all power and all options, including the AC adapter (if connected) and battery packs (see the procedures that follow). Do not disassemble the system into parts that are smaller than those specified in the procedure. Label all removed connectors. Note where the connector goes and in what posi- tion it was installed., Field Service Guidelines 4-5 Required Tools and Equipment All NEC Versa corrective maintenance procedures can be performed using the following tools: Tweezers Small flat-head screwdriver Small Phillips screwdriver Small Hex-bolt screwdriver Small utility knife Rubber finger tip Right angled dentist style probe. Battery Pack Remove the battery pack installed in the NEC Versa 2600 system as follows. 1. Make sure the power is off. 2. Close the LCD and turn the system over. 3. Press the battery release latch and slide the battery out of the system. Battery Release Latch Battery Pack Figure 4-1 Releasing the Battery Pack, 4-6 Field Service Guidelines Hard Disk Drive Make sure your NEC Versa is powered off, all external options are disconnected, and the LCD panel is closed. Then perform the following steps:

NOTE

The NEC Versa must be powered off while the hard drive is being removed and installed. 1. Pull down the hard drive latch located on the right front of the computer. Pull Down Hard Drive Latch Figure 4-2 Removing the Hard Disk Drive (Step 1) 2. Pull the hard drive latch forward as shown next. Pull Out Hard Drive Latch Figure 4-3 Removing the Hard Disk Drive (Step 2) 3. Continue pulling on the latch until you remove the hard drive from its bay., Field Service Guidelines 4-7 Hard Drive Figure 4-4 Remove Hard Disk Drive (Step 3) Keyboard Remove the keyboard from the system as follows. 1. Insert a fine flat head ceramic tip screwdriver between the following keys to re- lease the four locking tabs that secure the keyboard. F n and Ctrl Alt and Space Bar Space Bar and Alt Ctrl and the key to the right that contains the Tilde (~) 2. Use the same screwdriver to gently lift the front edge of the keyboard up and to- wards the LCD screen. 3. Disconnect the two Keyboard cables from Connectors CN10 and CN11 on the Main board. 4. Remove the Keyboard from the system., 4-8 Field Service Guidelines Figure 4-5 Removing the Keyboard, Field Service Guidelines 4-9 Heat Shield and CPU Board Removing the CPU board entails, first removing the heat sink and heat shield as follows. Figure 4-6 Removing the Heat Sink/Shield Subassembly

NOTE

When disassembling the laptop keep screws and stand offs with their proper subassemblies to insure proper reassembly. 1. Remove the following items three screws securing the heat sink and heat shield one screw securing the LCD ribbon cables to the heat shield LCD ribbon cables (disconnect) from connectors CN5 and CN6 on the main board., 4-10 Field Service Guidelines 2. To lift out the heat sink/shield subassembly. Lift at the location shown in Figure 4-6 and gently move this corner in a clockwise direction while lifting up on the heat/shield subassembly and at the same time gently apply a slight outward press to the plastic forward of the inboard right latch cover. 3. Now lift the front edge of the CPU board gently until the CPU board separates the connectors on the main board. Figure 4-7 Removing the CPU Board, Field Service Guidelines 4-11 LCD and Top Cover Remove the LCD and top cover as follows. 1. Remove the front plates as follows. Remove the two front plates from the hand rest area on the laptop. It is rec- ommended that you wear a rubber finger tip for gripping ease and slide the plates from the laptop.

NOTE

During reassembly there is a left and a right front plate. ¦ Remove two screws from each bay.

NOTE

During reassembly the screw under the left plate are (2.5 x 6) and (2.5 x 3.5) under the right plate. Figure 4-8 Removing the LCD Assembly (Step 1) 2. Remove two each Left and Right Hinge covers by inserting a ceramic tip screw driver or fingernail in the notch on the rear of the each of the hinge covers., 4-12 Field Service Guidelines 3. Remove a screw from each of the outside hinge cover slots and one from the lower left of the keyboard frame. 4. Remove two screw covers on the back of the laptop, under each screw cover re- move two screws. 5. Use your hands to carefully partially separate (do not try to totally separate at this time) the LCD and top cover from the bottom base assembly. Figure 4-9 Removing the LCD Assembly (Step 2) 6. Disconnect the Speaker Assembly cable from connector (CN403) 7. Disconnect the two LCD cables 8. It is now OK to totally separate the LCD and cover from the chassis assembly.

NOTE

If you choose to close the LCD screen at this point, use caution to not damage the subassembly., Field Service Guidelines 4-13 At this point the following components maybe removed from the unit independently. Sound Board VersaGlide LED Status Board IR board The Sound Board must be removed to disassemble the computer further (i.e. CD-ROM Reader, Bridge Battery, FDD/HDD Connector Board, Diskette Drive, Power Board and Main Board). VersaGlide Assembly Remove the, VersaGlide, as follows 1. Remove the prior assembly as previously described. 2. Locate the cables that are attached to the sound board at connector CN407 and CN406 disconnect both cables. Figure 4-10 Disconnecting the VersaGlide Cables, 4-14 Field Service Guidelines 3. Remove the VersaGlide by inserting a flat head screwdriver into the openings lo- cated at each rear corner. Press down on the retaining tabs and slide the VersaGlide forward as far a possible hold the switch on the front of the VersaGlide in position when removing VersaGlide. lift up on the back edge of the VersaGlide and now move towards the rear and remove. Sound Board Remove the Sound Board as follows: Locate the sound board. The sound board rests right above the battery bay. Disconnect the ribbon cable from CN405 on the Sound Board and if the VersaGlide cables are connected to CN406 and CN407, disconnect at this time. Remove the two screws at the back edge of the sound board . Lift the Sound Board to remove. LED Status Board and IR Board Remove the LED Statue Board and IR Board as follows: Disconnect cable at CN20 on the Main Board. Each of these boards are attached by two screws, remove screws lift off the LED status board for the IR board gently spread the LED bracket and the base assembly apart at the IR board, slide the IR Board to the right and out. 10X CD-ROM Reader and Heat Shield Remove the CD-ROM reader as follows: 1. Perform all of the disassembly procedures described in this section, removing the Keyboard, and LCD subassembly.

NOTE

It is not necessary to remove the VersaGlide, LED Status Board or IR Board to gain access to the CD-ROM Reader., Field Service Guidelines 4-15 2. Disconnect the following cables at connectors CN15, CN25 and CN26. Figure 4-11 Removing the CD-ROM Reader 2. Remove six screws securing the CD-ROM and heat shield. Figure 4-12 Removing the CD-ROM Reader Assembly Screws, 4-16 Field Service Guidelines 3. Remove the gasket. 4. Remove the CD-ROM and heat shield by lifting straight up from the assembly. 5. To remove the CD-ROM from the heat shield, do the following. turn the CD-ROM and heat shield assembly so the bottom of the CD-ROM is facing up with the door pointing towards you. remove three screws on the left side and two on the right of the CD-ROM. removing the CD-ROM reader by sliding it out of the heat shield. Bridge Battery and Diskette and Hard Drive Connector Board Remove the Bridge Battery or Connector Board as follows: 1. Remove the following as previously described: Keyboard Heat Sink LCD Assembly CD-ROM Reader and Heat Shield 2. Remove the Bridge Battery as follows. Remove the four screw at the front of the black insulator sheet Lift the black insulator sheet up at the left front corner and at the same time slide the insulator sheet out and way from the front left corner of the FDD and HDD assembly. Fold back the insulator sheet. Locate the cable on the Bridge Battery. Disconnect the cable for Bridge Battery from connector on the Main Board. Remove the Bridge Battery from the base unit., Field Service Guidelines 4-17 Figure 4-13 Removing the Bridge Battery and FDD/HDD Connector Board 3. To remove the FDD/HDD connector board, remove two screws followed by the retaining bracket remove two stand offs disengage the FDD/HDD board from the Main board. Diskette Drive Remove the Diskette Drive as follows. Remove the two stand offs Disconnect the ribbon cable at connector CN19 on the Main Board Remove four screws (two from each side of the battery bay housing and diskette assembly) Remove and save the tape (die cut) that covers the bottom jointing edge of the hard drive bay and the chassis assembly Lift the Diskette Drive out of the chassis assembly Remove the Diskette Drive from the assembly by removing four screws, 4-18 Field Service Guidelines Power Board Remove the Power Board as follows. 1. Remove one screw and one stand off. 2. Lift up on the Battery connector. This disconnects the power board from the main board. 3. Slide the board towards the front of the laptop to release the power board from the Main board. Main Board The final disassembly step is to remove five stand offs and four screws and lift the main board from the chassis case. Reassembly Reassembly is the reverse of the disassembly process. When reassembling use only the proper screws and stand offs in their appropriate locations. Make sure that all connectors are properly connected and don’t over tighten when replacing screws. ILLUSTRATED PARTS BREAKDOWN The next section contains the NEC part numbers and illustrated parts breakdown (IPB) fig- ure for the NEC Versa. Figure 4-14 shows the system exploded view diagram, or IPB. Ta- ble 4-2 lists field-replaceable parts and corresponding part numbers. Review the entire exploded diagram to see how each part is connected or assembled. Try to sub-divide the entire diagram paying particular attention to the LCD Assembly, Top Unit Cover Assembly, and the Base Unit Assembly., Field Service Guidelines 4-19 Figure 4-14 NEC Versa 2600 Series Illustrated Parts Breakdown Models 2630CD (PC-6600-41703), 2635CD (PC-6610-41703), 2650CD (PC-6620-41803), 2655CD (PC-6630-41803), 2650CDT (PC-6620-91803), & 2655CDT (PC-6630-91803), 4-20 Field Service Guidelines

T able 4-2 NEC Versa 2600 Series Field-Replaceable Parts

(Models 2630CD, 2635CD, 2650CD, 2655CD, 2650CDT & 2655CDT) Item Part Number 1. CPU Board 133MHz Assembly 3 RE0B13512240 150MHz Assembly 3RE0B13512850 2. Audio Board Assembly (Sound Board) 3 RE0B13512260 3 . Bottom Lid Assembly 3 RE0123503160 4. Back Lid Assembly(I/O Port Cover) 3 RE0124500101 5. Rear Screw Covers (2 per unit) 3 RE2234503811 6. Main Board Assembly DSTCV 3 RE0B13512220D TFT 3RE0B13513060B 7. Battery Charger Board Assembly (133 MHz) 3 RE0B13512270 (150 MHz) 3RE0B13512870 8 . LCD Hinge Covers Left (2 per unit) 3 RE2234503920 9. LCD Hinge Covers right (2 per unit) 3RE2234503930 10. VersaGlide Assembly 3RE0B13512300 11. Logo, NEC 1 36-600325-A 1 2. LCD Assembly 12.1” DSTN 3RE0194500990 12.1” TFT 3RE0194501010 1 3. Intel Inside Sticker 1 58-030621-001 1 4. Logo Badge Versa 2630CD 158-032200-009 2635CD 158-032200-010 2650CD 158-032200-011 2650CDT 158-032200-012 2655CD 158-032200-013 2655CDT 158-032200-014 1 5. Cabinet Assembly (Keyboard Top Cover) 3 RE0111503960 16. Power Button 3RE2169503990 1 7. Top Cover Assembly Screw Covers Left 3RE2234503950 Right 3RE2234503940 1 8. Speaker Assembly 3 RE0A11000270 19. AC Adapter 3 RE0U22600110 20. U.S. Keyboard 3RE4U27001360A 2 1. AC Power Cable (U.S.) 3 RE4W10000030, Field Service Guidelines 4-21 Table 4-2 NEC Versa 2600 Series Field-Replaceable Parts (Models 2630CD, 2635CD, 2650CD, 2655CD, 2650CDT & 2655CDT) (cont’d) 2 2. Main Battery (Li-Ion in 133 MHz models) 3RE4D25000213 (in 150 MHz models) 3RE4D25000270 23. PCMCIA Cover 3 RE2129500881 2 4. CMOS/Bridge Battery 3RE4D25000140 2 5. CD-ROM Drive 10X 3RE0291100160 26. PW Assembly HDD Connector 3RE0B13512290 27. 3.5-inch, 1.44-MB Diskette Drive 3RE0291100150 2 8. Hard Disk Drive 1GB 158-057303-000 1.44GB 808-874011-512A 29 33.6 U.S. Robotics Modem* 1 58-057200-007 30. Assembly Status and Charger* 3RE0B13513000 3 1. IRDA Assembly* 3 RE0B13512280 3 2. Lid, SIMM* 3RE2129500812 3 3. Shipping Carton (Brown Box)* 158-041020-000 34. Shipping Carton Litho* 158-041032-000 35. NEC Versa 2600 User’s Guide* 8 19-200227-000 3 6. NEC Versa 2600 Series Service and Reference 819-200231-000 Manual — Models 2630CD, 2635CD, 2650CD, 2655CD, 2650CDT and 2655CDT.* * Not Shown in IPB Figure.

This data was prepared April, 1999. For an up-to-date listing of spare

parts, please call FaxFlash (888) 329-0088 (international (978) 635- 6090) and order document number 42200231., 4-22 Field Service Guidelines SERVICE INFORMATION NEC service and information telephone numbers are listed in Table 4-3. Table 4-3 NEC Service and Information Telephone Numbers Service C all To order NECCSD spare partsInthe U.S. and Canada, call 1(800) 632- To order options in the U.S. L ocal Sales Office To access the NECCSD Electronic Bulletin 1 (978) 635-4706 Board System (BBS) To download files - provides software drivers 1(978) 635-4706 and the latest ROM BIOS NECCSD Customer Service and TechnicalInthe U.S. and Canada, call 1-800-632- Support Center 4525 NECCSD Customer Assistance Center for 1 (888) 632-9128 extended warranties and contract information N EC FaxFlashTM Service — automated In the U.S. and Canada, call 1(888) 329- service that sends the latest information 0088 about NEC products to the fax machine 24 hours a day Outside U.S., 1(978) 635-6090 TECHNICAL SUPPORT NECCSD Customer Service Response Center provides an E-mail service for Internet users. Technical questions regarding NEC products can be sent over the Internet system to the Center. The Internet address is as follows: email is hidden If it is more convenient, questions may also be faxed to the Customer Service Response Center. The fax number is: (978) 635-4100 Along with the complete product name and question(s), be sure to include your name and fax number or Internet address, so that an expert can respond to the question. It would also help to include your telephone number in case the Customer Service Re- sponse Center can not get their answer to you. We will reply to all questions received by Internet or fax within one business day., Field Service Guidelines 4-23 PRODUCT INFORMATION NEC FaxFlash is an automated electronic information service used to obtain up-to-date product application notes, installation procedures, troubleshooting tips, data sheets, techni- cal information bulletins, price lists, and other information. Information can be obtained from the FaxFlash service 24 hours a day, 7 days a week. Us- ing a touch-tone telephone, call the FaxFlash number, order the desired information through the automated attendant, and FaxFlash will automatically fax the information. Catalogs that list the documents and the document numbers are available. Current catalogs include: Catalog 1 – Telephone Directory and information about Online Services Catalog 3 – Product specifications, warranty policy, UltraCare guidelines, and sales information Catalog 5 – Pro Serva and Express 5800 Server System technical support infor- mation Catalog 6 – NEC Ready Systems technical support information Catalog 7 – Powermate Systems technical support information Catalog 8 – NEC Portable System (including Versa Notebooks and MobilePro Handheld Personal computers) technical support information ORDERING INFORMATION FROM FAXFLASH Order information from FaxFlash as follows: 1. Check that the fax machine is on. 2. Locate the document part number. 3. Using a touch-tone telephone, call 1-888-329-0088 (U.S. and Canada only). For international use, enter the international long distance access number, the U.S. telephone number, and the U.S. extension (1-978-635-6090). 4. Listen to the instructions provided by the automated attendant. Press 1 to skip the FaxFlash introduction and jump to the automated instructions for ordering a document or catalog. Press 2 for an introduction to FaxFlash, followed by the automated instructions for ordering a document or catalog. 5. When asked by the automated attendant, enter your fax number and telephone number., 4-24 Field Service Guidelines F or international use, first enter the international long distance access number (011), your country code, area code or city code, then your fax number. The information requested will be sent automatically to your fax machine. If FaxFlash at- tempts to send the second order before the first order is completed, the order could be can- celed. After three tries, FaxFlash assumes that the line is busy.,

Appendix A Connector Locations and Pin Assignments

Figure A-1 and Table A-1 show CPU board connectors. The remaining tables provide pin assignments for additional system connectors. Figure A-1 CPU Board Layout Table A-1 CPU Board Connector Connector Description C N1 Main Board Connector, A-2 Connector Locations and Pin Assignments Figure A-2 Main Board Layout Table A-2 Main Board Connectors Connector Description C N5 LCD Connector CN6 LCD Connector C N7 Monitor Connector CN8 PC Card Connector C N10 K eyboard Connector C N11 K eyboard Connector C N12 P arallel Connector CN13 S erial Connector CN18 H DD Connector CN19 F DD Connector C N20 L ED Status Board Connector C N21 K eyboard/Mouse Connectors C N22 E xpansion Connector CN24DCto DC Converter Board Connector CN25 C D-ROM Connector CN26 C D-ROM Connector, Connector Locations and Pin Assignments A-3 Figure A-3 Sound Board Layout Table A-3 Sound Board Connectors Connector Description CN409 L ine In Connector CN402 M icrophone Connector CN401 H eadphone Connector CN405 M ain Board Connector CN406 V ersaGlide Connector CN407 V ersaGlide Connector C N403 S peaker Connector Table A-4 Keyboard/Mouse Connectors Pin Signal1Keyboard Data2Mouse Data3Ground 4 + 5V5Keyboard Clock6Mouse Clock, A-4 Connector Locations and Pin Assignments Table A-5 Serial Port Connector Pin Assignments Pin Signal 1 Data Carrier 2 Receive Data 3 Transmit Data 4 Data Terminal Ready 5 Ground 6 Data Set Ready 7 Request to Send 8 Clear to Send 9 Ring Indicator Table A-6 CRT Connector Pin Assignments P in Signal 1 Red 2 Green 3 Blue 4 OPT1 5 Ground 6 Ground 7 Ground 8 Ground 9 +5V PnP VESA Vcc 10 G round 11 O PT212PnP VESA Data 13 H orizontal Sync 14 V ertical Sync 15 P nP VESA Clock, Connector Locations and Pin Assignments A-5 Table A-7 Parallel Printer Pin Assignments Pin Signal 1 - Strobe 2 Data Bit03Data Bit14Data Bit25Data Bit36Data Bit47Data Bit58Data Bit69Data Bit 7 10 - Acknowledge11Busy12PE13 S elect14- Auto Feed XT 15 - Error16- Initialize 17 - Select In18-25 G round Table A-8 Power Connector Pin Signal1Ground2DCSYS3DCCHG4Type, A-6 Connector Locations and Pin Assignments Table A-9 Hard Disk Drive Connector Pin Signal 1 HDD Access LED 2 +5V 3 Chip Select04+55Chip Select16+ 5V7Address08+ 5V9Address 2 10 + 5V 11 A ddress 1 12 + 5V 13 D iagnostic14Not Used15IRQ 16 N ot Used 17 N ot Used18IOChannel Ready 19MSSelect 20IOWrite 21 I /O Read 22 N ot Used 23 D ata 0 24 D ata125Data15 26 D ata1427Data2 28 D ata13 29 D ata3 30 N ot Used 31 D ata12 32 G round, Connector Locations and Pin Assignments A-7 Table A-9 Hard Disk Drive Connector Pin Signal 33 D ata434Ground35Data4 36 G round 37 D ata5 38 G round 39 D ata10 40 G round41Data6 42 G round43Data944Ground 45 D ata746Not Used 47 G round 48 G round49RESET 50 G round,

Index

Extending battery life, 2-8

A

AC adapter, 2-4 F AC power port, 1-9 Field-replaceable parts list, 4-18 Active mode, 1-21, 2-25 Flash ROM, 1-17 Automatic power saving features, 1-20 Function keys, 2-13BHBackup system disk, 4-2 Handling battery packs, 4-3 Battery charging time, 2-9 Hard disk drive, 1-10 Battery life, 2-8 specifications, 1-10 Battery pack, 1-9 Hard disk drive connector pin assignments, handling, 2-6 A-7 precautions, 2-9 Hardware failures, 2-15 replacing, 2-7, 4-5 Hardware Overview when to change, 2-7 VersaBay II, 1-6 Battery status, 2-5 Headphones, 1-7 Battery warning, 2-6 BIOS update, 1-17 I Bridge battery, 1-13 I/O board, 1-13 I/O connector descriptions, 2-3 C Increasing system memory, 1-14 Cable connections, 2-3 Infrared port, 2-3 Cache RAM, 1-14 Internal batteries, 2-10 CD-ROM Reader, 1-6, 1-10 Interrupt level assignments, 1-19 Chip types, 1-16 IR port, 1-8 Cleaning internal components, 4-2 K outer surface, 4-2 Kensington lock, 1-7 CPU, 1-16 Keyboard, 1-5, 1-24 CPU board, 1-11 Keyboard controller, 1-18 CPU board connectors, A-1 Keyboard panel controls, 2-11 Creative Vibra 16S VLSI chip, 1-18 Keyboard port, 1-8 CRT connector pin assignments, A-4 Keyboard/mouse connectors, A-4DLDisassembly guidelines, 4-4 LCD, 1-2 Diskette drive, 1-6, 1-10 LCD features, 1-3 Display, 1-24 LCD types, 1-3 Line-In, 1-7 E Local power management, 1-21 Entering setup, 2-17 Low battery power, 2-5 Expansion port, 1-8, Index-2 M Standby mode, 2-25 Maintaining LCD quality, 4-3 Suspend mode, 2-25 Memory Power management modes cache RAM, 1-14 active, 1-21 Memory map, 1-14 local standby, 1-21 Microphone, 1-7 suspend, 1-21 Microprocessor, 1-16 Power management overview, 1-20 Model configurations, 1-1 Power sources, 2-4 Monitor port, 1-8 Power switch, 2-11 Mouse port, 1-8 Power-on self test (POST), 2-14 Product information, 4-23

N

NEC Versa disassembly sequence, 4-4 Q NEC Versa video modes, B-1 Quick troubleshooting, 3-1OROperating controls, 2-11 Replacing the battery pack, 2-7, 4-5 Ordering information from FastFacts, 4-23 ROM BIOS, 1-17PSParallel interface enhanced capabilities Security, 2-22 port, 1-15 Serial interface, 1-16 Parallel port, 1-8 Serial port, 1-9 Parallel port pin assignments, A-5 Serial port connector pin assignments, A-4 Password, 2-22 Service telephone numbers, 4-22 PC card slots, 1-7 Servicing a hard disk, 4-2 Plug and play, 1-21 Servicing the system Post error messages, 2-15 required tools, 4-5 Post errors, 2-15 Setting a password, 2-22 Power Setting system parameters, 2-19 good battery life, 2-23 Boot Device, 2-21 good system performance, 2-24 Components, 2-22 maximum battery life, 2-23 Date and Time, 2-21 maximum system performance, 2-24 power, 2-23 PCMCIA, 2-24 Setting time and date, 2-21 user setting AC, 2-24 Setup key functions, 2-18 user setting battery, 2-24 Setup utility, 2-16 Power button, 1-4 Side panel controls, 2-11 Power connector pin assignments, A-5 Sound board, 1-12 Power LED, 1-4, 2-12 Standby mode, 1-21 Power Management Status bar, 2-12 Active mode, 2-25 Status LEDs, 1-4 default settings, 2-26 Suspend mode, 2-25 How to use, 2-25 System disassembly power saving modes, 2-25 bridge battery, 4-16, Index-3 LCD and top cover, 4-11 System icons, 2-12 System paPOPrameters, 2-14 System parameters, 2-19 System setup, 2-1 System specifications, 1-22 System status icons, 2-12 System video, 1-15

T

Technical support, 4-22 Troubleshooting helpful questions, 3-4

U

Unpacking, 2-1 Updating the BIOS, 2-13

V

VersaGlide, 1-5 VGA controller, 1-17 Video mode CRT only, 1-15 Video RAM, 1-15 Volume control, 1-7

Y

Y-cable adapter, 1-8, BATTERY REPLACEMENT A lithium CMOS clock battery in your computer maintains system configuration information. In the event that the battery fails to maintain system configuration information, NEC recommends that you replace the battery. Have an authorized NEC service representative replace the battery. ! WARNING There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions. ! ATTENTION Ilyadanger d’explosion s’ilyareplacement incorrect de la batterie. Remplacer uniquement avec une bat- terie du même type ou d’un type recommandé par le constructeur. Mettre au rébut les batteries usagées conformément aux instructions du fabricant. BATTERY DISPOSAL The bridge battery is made of nickel metal hydride (NiMH). The main battery and CMOS battery are made of lithium-ion (Li-Ion). Contact your local waste management officials for other information regarding the environmentally sound collection, recycling, and disposal of the batteries. For additional information on the proper collection or disposal of rechargeable batteries, please call 1-800-8-BATTERY., (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.

NOTE

This is a Class B Digital Device. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures. Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment to an outlet on a circuit different from the one to which the receiver is connected. To meet FCC standards, shielded cables and power cords are required to connect this device to a personal computer or other Class B certified device. Canadian Department of Communications Compliance Statement This equipment does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio interference Regulations of the Canadian Department of Communications. Avis de conformité aux normes du ministère des Communications du Canada Cet appareil respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe B prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada. European Community Directive Conformance Statement This product is in conformity with the protection requirements of EC Council Directive 89/336/EEC on the approximation of laws of the Member States relating to electro-magnetic compatibility. This product satisfied the Class B limits of EN 55022. NEC Computer Systems Division, Packard Bell NEC, Inc. 1414 Massachusetts Avenue Boxborough, Massachusetts 01719 1-800-632-4525]
15

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