SOLD BY laptopia2005 DO NOT RESELL!! 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.
SOLD BY laptopia2005 DO NOT RESELL!! xi Preface This service and reference manual contains the technical information necessary to set up and maintain the NEC Versa® 2500 Series notebook computer. It also provides hardware and interface information for users who need an overview of the system’s design. The manual is written for NEC-trained customer engineers, system analysts, service center personnel, and dealers.
SOLD BY laptopia2005 DO NOT RESELL!! iii Contents Preface......................................................................................................................... xi Abbreviations............................................................................................................... xiii Section 1 Introduction Feature Highlights........................................................................................................1-2 System Configuration............................
SOLD BY laptopia2005 DO NOT RESELL!! iv Contents System BIOS Upgrade Procedure ................................................................................1-20 Section 2 General Specifications Product Mix.................................................................................................................2-6 System Board Specifications ........................................................................................2-7 Transfer Board Specifications .................................
SOLD BY laptopia2005 DO NOT RESELL!! Contents v DRAM Memory....................................................................................................3-6 ROM Subsystem ...................................................................................................3-6 I/O Subsystem .............................................................................................................3-6 VIDEO Subsystem........................................................................................
SOLD BY laptopia2005 DO NOT RESELL!! vi Contents Removing/Replacing the System Board and I/O Board..........................................4-10 Separating the System Board and I/O Board .........................................................4-11 Removing/Replacing the Power Board ..................................................................4-12 Illustrated Parts Breakdown .........................................................................................4-13 Packaging and Documentation .....
SOLD BY laptopia2005 DO NOT RESELL!! Contents vii 1-13 1-14 1-15 1-16 Connecting to the Printer Port........................................................................ 1-12 Connecting to the Serial Port ......................................................................... 1-12 Bottom View of the Notebook ....................................................................... 1-13 The Boot Setup Menu....................................................................................
SOLD BY laptopia2005 DO NOT RESELL!! viii Contents 2-13 2-14 2-15 2-16 2-17 2-18 2-19 2-20 2-21 2-22 2-23 2-24 2-25 2-26 2-27 Battery Specifications..................................................................................... DC/DC Converter & Battery Charger Specifications ...................................... Battery Charger Specifications ....................................................................... Keyboard Specifications.............................................................
SOLD BY laptopia2005 DO NOT RESELL!! Contents A-13 A-14 A-15 ix VGA High Refresh Modes (Packed Pixel Mode) ............................................ A-5 VGA High Refresh Modes (Planar Mode) ...................................................... A-5 VGA High Refresh Modes (Packed Pixel Mode) ............................................
SOLD BY laptopia2005 DO NOT RESELL!! (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.
SOLD BY laptopia2005 DO NOT RESELL!! xiii Abbreviations A AC AT ampere alternating current advanced technology (IBM PC) BBS Bulletin Board System BCD binary-coded decimal BCU BIOS Customized Utility BIOS basic input/output system bit binary digit bpi bits per inch bps bits per second BUU BIOS Upgrade Utility C centigrade Cache high-speed buffer storage CAM constantly addressable memory CAS column address strobe CD-ROM compact disk-ROM CGA Color Graphics Adapter CGB Color Graphics Board CH channel clk cloc
SOLD BY laptopia2005 DO NOT RESELL!! xiv Abbreviations IRR ISA ISR I/O IPC ips IRQ K k KB kg kHz kV lb LDTR LED LSB LSI M mA max MB MDA MFM Mhz mm ms MSB NASC NC NDP NMI ns NSRC PAL PC Interrupt Request register Industry Standard Architecture In Service register input/output integrated peripheral controller inches per second interrupt request kilo (1024) kilo (1000) kilobyte kilogram kilohertz kilovolt pound local descriptor table register light-emitting diode least-significant bit large-scale integratio
SOLD BY laptopia2005 DO NOT RESELL!! Abbreviations UART V Vdc VESA VFO VGA VLSI VRAM W µf µPD µs Ω universal asynchronous receiver/transmitter volt volts, direct current video electronics standards association variable frequency oscillator Video Graphics Array very large-scale integration virtual RAM watt microfarad microprocessor microsecond ohm SOLD BY laptopia2005 DO NOT RESELL!! xv
SOLD BY laptopia2005 DO NOT RESELL!! Section 1 Introduction This section focuses on providing outline features and operations of the NEC Versa 2500 Series Notebook Computer, including the BIOS Setup program. (Refer to the User’s Guide for more information on operating the notebook.) The NEC Versa 2500 Series of notebooks are lightweight, compact, and fully IBM compatible. The NEC Versa 2500 Series Notebook comes in the following model configuration.
SOLD BY laptopia2005 DO NOT RESELL!! 1-2 Introduction FEATURE HIGHLIGHTS The NEC Versa 2500 Series notebook includes a variety of innovative features designed to meet the most demanding computing requirements Table 1-2 Feature Highlights Features Description CPU Intel P54CSLM-133 MHz processor with internal 16 KB cache memory and math coprocessor Memory On-board 16 MB RAM, can be upgraded to 48 MB Cache RAM 256 KB, L2 cache Display 12.
SOLD BY laptopia2005 DO NOT RESELL!! Introduction SYSTEM CONFIGURATION The following diagram shows the NEC Versa 2500 Series system configuration. INTEL P54CSLM(TCP) CPU Cache RAM L2: 256KB write back Color LCD (800x600) DSTN BIOS Flash ROM VL Bus Controller (VGA) External VGA Monitor 8 / 16MB RAM On-Board Upgradable to 48MB NEC VersaGlide PS/2 Keyboard and Bank 1 (Slot 1) 4 / 8 / 16MB DIMM Built-in HDD 3.
SOLD BY laptopia2005 DO NOT RESELL!! 1-4 Introduction QUICK TOUR OF THE NOTEBOOK Take a moment to become familiar with the locations and functions of all controls. It is recommended that you first go through the notebook’s user guide for more information on how to operate all of the features. Main Components This section describes the main features of the NEC Versa 2500 Series computer. Color LCD Display Panel The notebook has a built-in 12.
SOLD BY laptopia2005 DO NOT RESELL!! Introduction 1-5 Keyboard The notebook has a built-in 87/88-key keyboard that provides complete emulation of a fullsized IBM AT-enhanced keyboard with function keys and screen/cursor control keys. Figure 1-3 Standard Keyboard Layout The notebook keyboard includes an embedded numeric keypad, and some special function keys that are activated by pressing the Fn key together with another key.
SOLD BY laptopia2005 DO NOT RESELL!! 1-6 Introduction Table 1-3 Fn Key Combination Summary (cont’d) Key Combination Function Fn key + F11 key This key combination toggles the LCD display backlighting (CCFT) on and off. Fn key + right key This key combination increases the contrast level. Fn key + left key This key combination decrease the contrast level. Fn key + Up key This key combination increase the brightness incrementally for the LCD.
SOLD BY laptopia2005 DO NOT RESELL!! Introduction 1-7 Memory Slot Compartment The memory compartment is located just under the keyboard. Inside the compartment are two extra memory module sockets which can accommodate any standard JEDEC 8 MB or 16 MB DIMM modules. Figure 1-5 Memory Slot Compartment The Right Side of the Notebook This section describes the features on the right side of the NEC Versa 2500 computer. Built-in Disk Drive The disk drive, which supports 3.5-inch 1.
SOLD BY laptopia2005 DO NOT RESELL!! 1-8 Introduction The NEC Versa 2500 Series also comes with DOS/Windows PC card drivers for supporting various PC cards like modem cards, network cards, and other I/O and memory cards. The LED Status Bar, likewise, provides lights to indicate when the computer is accessing the inserted PC cards. The upper PC card slot is referred to “Slot 0” while the bottom slot is referred to as “Slot 1”. Slot 0 always takes precedence over Slot 1 in drive designations.
SOLD BY laptopia2005 DO NOT RESELL!! Introduction Figure 1-7 1-9 Removing the Battery Pack Left Side of the Notebook The following details the left side of the NEC Versa 2500 Series computer. DC-IN Connector Power Switch Reset Switch Figure 1-8 Left Side of the Notebook DC-IN Connector Jack The NEC Versa 2500 series provides a universal auto-switching AC adapter which connects the AC power cord into the power outlet.
SOLD BY laptopia2005 DO NOT RESELL!! 1-10 Introduction Figure 1-9 Connecting the AC Adapter to the Notebook Hardware Reset Switch To the right of the AC adapter connector jack, you will notice a small hole which allows an easy alternative to resetting the notebook’s hardware. The Rear of the Notebook The following details the rear side of the NEC Versa 2500 Series computer. IR Port Ext.
SOLD BY laptopia2005 DO NOT RESELL!! Introduction Figure 1-11 1-11 Connecting an External Keyboard and PS/2 Mouse VGA Port The 15-pin female VGA connector allows you to connect an external VGA monitor that supports up to 1024x768 pixels resolution. When displaying on an external VGA monitor alone, the VGA port supports resolutions up to 1024x768 at 256 colors. The NEC Versa 2500 Series provides a VGA VESA driver diskette for installing different display resolution drivers for Windows Setup.
SOLD BY laptopia2005 DO NOT RESELL!! 1-12 Introduction Printer Port The 25-pin printer port provides a parallel interface to connect a parallel printer or pocket network adapter. Many operating systems and software applications refer to this port as LPT1. You can run the BIOS Setup program to change the configuration of the parallel port to Standard or Bi-directional.
SOLD BY laptopia2005 DO NOT RESELL!! Introduction Figure 1-15 1-13 Bottom View of the Notebook The following describes the bottom of the NEC Versa 2500 Series computer. Battery Module Handle and Lock To release the battery module from its compartment, push the battery compartment latch as indicated by the arrow marked on it. While doing this, hold the handle of the battery module and slowly pull it out from its compartment.
SOLD BY laptopia2005 DO NOT RESELL!! 1-14 Introduction SYSTEM BIOS SETUP PROGRAM This section provides the outline features and operation of the Phoenix BIOS Setup program used in the NEC Versa 2500 Series. The BIOS (Basic Input-Output System) Setup program allows you to change the system configuration settings such as the current date and time, the disk drive and ports settings, and the power management as well.
SOLD BY laptopia2005 DO NOT RESELL!! Introduction Table 1-4 Boot Main Setup Menu Item Function System Time This option allows you to change the system time, using the format hour : minute : second. You can change the system time here or from your operating system’s command prompt. System Date This option allows you to change the system date, using the format month / day / year. You can change the system date here or from your operating system’s command prompt.
SOLD BY laptopia2005 DO NOT RESELL!! 1-16 Introduction Table 1-4 Boot Main Setup Menu (cont’d) Item Function POST Errors This options allow the system to pause and display the error message at boot attempt. Keyboard Features Selects keyboard options. Num Lock This option toggles the Num Lock key on or off. Keyboard Repeat Rate This option allows you to select the auto-repeat key speed. Possible values include 2, 6, 10, 13.3, 18.5, 21.8, 26.7, or 30 seconds.
SOLD BY laptopia2005 DO NOT RESELL!! Introduction Table 1-6 Boot Setup Security Menu Item Function Password This option allows you to limit access to the computer through the use of a password. If you select this option, a pop-up window appears asking you to set or change the password. A password can be up to seven characters in length, and is cleared by eliminating the password with the F1 key.
SOLD BY laptopia2005 DO NOT RESELL!! 1-18 Introduction Table 1-7 Item Boot Setup Power Savings Menu Function Power Saving This option allows you to enable or disable power management. Select Disabled, all other power management settings are ignored and disabled as well. Select Disabled ON AC, the power management is disabled only when the computer is powered by the AC adapter, but will enable the power management while on battery. Select Enabled, the power management is enabled all the time.
SOLD BY laptopia2005 DO NOT RESELL!! Introduction Table 1-7 1-19 Boot Setup Power Savings Menu (cont’d) Item Function Cover Switch Control This option allows you to effectively program the type of event which occurs when the display panel is closed. Select SUSPEND, the computer enters the SUSPEND Mode when the LCD Panel is closed. Select Backlight Off, the system powers down the LCD when the LCD Panel is closed.
SOLD BY laptopia2005 DO NOT RESELL!! 1-20 Introduction To upgrade the memory in the notebook, follow these steps. 1. Power off the computer and remove the AC adapter and battery pack. 2. Remove the hinge covers, status bar cover, and the keyboard from the top of the unit and locate the memory expansion sockets. 3. Remove the extra DIMM module from its anti-static wrapping. 4. Hold the memory module with its golden teeth connector pointed towards the memory socket.
SOLD BY laptopia2005 DO NOT RESELL!! Introduction 1-21 1. Copy the PHLASH.COM & PLATFORM.BIN BIOS utility program and the BIOS ROM file to the hard disk subdirectory. You can also choose to run the program from the diskette. 2. Disable EMM386 or other memory manager programs before restarting the computer. When booting DOS, press F5 to bypass the CONFIG.SYS and AUTOEXEC.BAT. You may also choose to boot from Drive A: with a clean DOS diskette. 3. At the DOS prompt, type “PHLASH
SOLD BY laptopia2005 DO NOT RESELL!! Section 2 General Specifications The following table lists NEC Versa 2500 Series system specifications.
SOLD BY laptopia2005 DO NOT RESELL!! 2-2 General Specifications Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION CD-ROM Reader Removable CD-ROM Reader 8x speed Diskette Drive Removable Diskette Drive 720KB/1.44 MB Mode Support (Overseas version) Display 12.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION HotKey Operation Fn + F8 = PC Beep Mute Fn + Esc = Suspend Control Fn + = Contrast Up Fn + = Contrast Down Fn + = Brightness Up Fn + = Brightness Down Fn + = Decrease Speaker Volume Fn + = Increase Speaker Volume Fn + F10 = CRT/LCD/Simul.
SOLD BY laptopia2005 DO NOT RESELL!! 2-4 General Specifications Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION Audio Support external Stereo Headphone Jack Support external Stereo Line-In Jack Support external MIC.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications Table 2-1 ITEM Key Components NEC Versa 2500 Series Specifications (cont’d) SPECIFICATION 12.1” Color DSTN SVGA LCD: EDMGR68KBF (Panasonic) CD-ROM: CDR-38E-900 Hard Disk Drive: 1.4 GB MK1401MAV (Toshiba) Diskette Drive: NEC FD1238H Keyboard: 87/88 Key Full Size (Windows 95) Controller: Mitsubishi M38813M4 VersaGlide: TM1002S-D Synaptics, or KGDDBA-911A Alps Battery: Panasonic NiMH 1.2V, LA, HHR350A Sanyo NiMH 1.
SOLD BY laptopia2005 DO NOT RESELL!! 2-6 General Specifications Table 2-1 ITEM NEC Versa 2500 Series Specifications (cont’d) SPECIFICATION Flash ROM: AMD AM29F002T PWM Controller: MAXIM MAX797 MOSFET: NS 9410 & 9953 AC Adapter PRODUCT MIX The following table lists the NEC Versa 2500 Series product mix. Table 2-2 Product Mix Versa 2500) ® CPU Intel Pentium/133 MHz, P54CSLM(TCP) On-Board DRAM 16 MB 256KB, L2 Cache Video RAM 1 MB HDD 1.4 GB LCD 12.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications SYSTEM BOARD SPECIFICATIONS The following table lists system board specifications.
SOLD BY laptopia2005 DO NOT RESELL!! 2-8 General Specifications TRANSFER BOARD SPECIFICATIONS The following table lists Transfer board specifications. Table 2-4 Transfer Board Specifications ITEM SPECIFICATION Internal Connector To FDD: 100 Pin, AMP To second battery 100 Pin, AMP PCB Thickness: 1.2mm Layers: 4 CONVERTER BOARD SPECIFICATIONS The following table lists Converter board specifications.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications LED INDICATOR BOARD SPECIFICATIONS The following table lists LED indicator board specifications.
SOLD BY laptopia2005 DO NOT RESELL!! 2-10 General Specifications I/O BOARD SPECIFICATIONS The following table lists I/O board specifications. Table 2-7 I/O Board Specifications ITEM SPECIFICATIONS Clock Crystal 14.318 MHz, DIP Type Crystal 32.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications Table 2-7 I/O Board Specifications (cont’d) ITEM SPECIFICATIONS Internal Connector To System PCB 100 Pin, AMP To System PCB 100 Pin, AMP To HDD Unit 50 Pin, KEL To CD ROM Unit 40 Pin, KEL To RTC Battery 2 Pin, Molex To Transfer PCB 40 Pin, Suyin To DC Converter 32 Pin, Suyin External Connector COM1 9 Pin, Suyin Printer 25 Pin, Suyin Docking 160 Pin, Berg PCB Thickness: 1.
SOLD BY laptopia2005 DO NOT RESELL!! 2-12 General Specifications LCD INVERTER BOARD SPECIFICATIONS The following table lists LCD inverter board specifications. Table 2-8 LCD Inverter Board Specifications ITEM Specification Color Inverter Panasonic 12.1” DSTN LMG9980ZWC Input Voltage 8V to 20V Output Voltage 500VAC Max. Contrast Voltage 28V ~ 31V Output Load Current 6mA (Max.) Brightness Control Hot Key Contrast Control Hot Key Efficiency 70% Min. Unit Size (L x W x H) 146 (L) x 22.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications 2-13 LED STATUS INDICATORS The following table lists NEC Versa 2500 Series LEDs. For example, the AC IN LED lights to indicate power is on and that the battery is charging. Table 2-9 Status LED Descriptions ITEM LED PMU Enabled HDD, FDD and CD-ROM PC Card Slots Read / Write Read / Write Num Lock Caps Lock Scroll Lock DISKETTE DRIVE SPECIFICATIONS The following table lists the standard diskette drive specifications.
SOLD BY laptopia2005 DO NOT RESELL!! 2-14 General Specifications HDD UNIT SPECIFICATIONS The following table lists the standard hard drive specifications. Table 2-11 Hard Disk Drive Specifications ITEM SPECIFICATION Module 2.5” Removable HDD Module Capacity 1.4 GB Interface Enhanced IDE Interface Unit Size 100mm (L) x 70mm (W) x 12.7mm (H) CD-ROM SPECIFICATIONS The following table lists the standard CD-ROM reader specifications.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications DC/DC CONVERTER & BATTERY CHARGER SPECIFICATIONS The following table lists DC/DC converter & battery charger specifications. Table 2-14 DC/DC Converter & Battery Charger Specifications ITEM SPECIFICATION Input Voltage 6V -> 19V Output Voltage 12V, 5V, 3.3V Output Current 0.1A, 2.5A, 2.5A Output Ripple Voltage 150mV, 100mV, 100mV Protection Short Circuit Protection, OCP Input under voltage latch Efficiency 80% Min. (Typ.) PCB 1.
SOLD BY laptopia2005 DO NOT RESELL!! 2-16 General Specifications KEYBOARD SPECIFICATIONS The following table lists keyboard specifications. Table 2-16 Keyboard Specifications ITEM SPECIFICATION Key Switch Type Membrane Key Stroke 3.0 ± 0.5mm Operating Force 50 ± 20GF Key Pitch 19.05mm AC/DC ADAPTER SPECIFICATIONS The following table lists AC/DC adapter specifications.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications BIOS SPECIFICATIONS The following table lists BIOS specifications. Table 2-18 BIOS Specifications ITEM Specification Floppy Disk Drive Support standard 3.5” FDD Support 720KB and 1.
SOLD BY laptopia2005 DO NOT RESELL!! 2-18 General Specifications Table 2-18 BIOS Specifications (cont’d) ITEM Specification Suspend (To RAM) STR can be invoked by Hot-Key, Cover-Switch, Battery Low-Low Condition, & Operating System request STR can be resumed by Keyboard & Power button Save To Disk STD can be invoked by Hot-Key, Cover-Switch, Battery Low condition & Operating System request STD can be resumed by Power Button only.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications POWER MANAGEMENT FEATURES (MODE DEFINITION) The following table lists power management specifications. Table 2-20 Power Management Modes Mode Device Speed Full-On Mode CPU State Full speed Peripherals State Normal Timer On / Off CPU State Stop Grant State DRAM State Slow Refresh Peripherals State Normal Activity Events Video Monitoring, Keystrokes, FDD, HDD, COM1, COM2, LPT2, Audio Timer Off/1/2/4/8/16 Min.
SOLD BY laptopia2005 DO NOT RESELL!! 2-20 General Specifications Table 2-20 Power Management Modes Mode Device Speed Suspend To Disk Timer Off/1/2/4/8/16 Min CPU State Off Power System Off Power-On Group Micro-Controller Activity Events Power Switch Battery Low Condition CPU State CPU Clock/2 Battery Low / Low Condition CPU State Off System Power Off LCD State POWER MANAGEMENT FEATURES (MODE TRANSITION) The following table lists power management transition modes.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications 6. Fully-On Activity Events Occur 7. Suspend Mode Time-Out Battery Low - Low Condition 8. Resume Events Occur HOT KEY DEFINITION The following table lists hot key definitions. Table 2-22 Hot Keys FUNCTION KEY CONTENT Fn + Esc Suspend Fn + F10 LCD/CRT/SIMUL.
SOLD BY laptopia2005 DO NOT RESELL!! 2-22 General Specifications POWER SOURCE SPECIFICATIONS The following table lists system power specifications. Table 2-24 Power Specifications Input Nominal Version AC Voltage 100 ~ 250 V 90 ~ 265 V AC Frequency 50 / 60 Hz 47 ~ 63 Hz VIBRATION SPECIFICATIONS The following table lists vibration specifications. Table 2-25 Vibration Specifications ITEM MODE Operating Mode Direction of Movement: X, Y, Z Axis Vibration Level: 5 ~ 500 ~ 5 Hz, 0.
SOLD BY laptopia2005 DO NOT RESELL!! General Specifications ELECTRO-STATIC DISCHARGE (ESD) SPECIFICATIONS The following table lists static discharge specifications. Table 2-27 Electro-Static Discharge Specifications ITEM SPECIFICATION Contact Discharge ±2, 4, 8, 12.
SOLD BY laptopia2005 DO NOT RESELL!! Section 3 Hardware Functional Overview The NEC Versa 2500 Series notebooks consist of several major functions and subsystems including: system BIOS – implemented on the system board and Flash ROM system processor – implemented on the system board system logic controller – implemented on the I/O Board memory subsystem – implemented on the system board video subsystem – implemented on the I/O board, LED board, and LCD display panel I/O subsystem – implement
SOLD BY laptopia2005 DO NOT RESELL!! 3-2 Hardware Functional Overview FUNCTIONAL BLOCK DIAGRAM The following figure shows the NEC Versa 2500 Series functional diagram. FLASH BIOS 256KB PCMCIA OMEGA 82C094 Bank 0 8MB (on-board) CARD 1 GLIDE PAD CORE CHIP UMC UM8891BF-N, UM8892BF-N, UM8886BF-N Bank 1 8, 16MB (DIMM) CARD 0 KB CONTROLLER MITSUBISHI M38813M4 EXT.
SOLD BY laptopia2005 DO NOT RESELL!! Hardware Functional Overview 3-3 The NEC Versa 2500 Series uses the Phoenix BIOS. The BIOS Setup program is an easyto-use system utility configuration that sets system parameters and copies them on the Flash ROM chip with the system BIOS. The Flash ROM chip also includes BIOS Power-On Self Test (POST) diagnostic and booting codes that tests the system components, initializes certain data structures, and boots the operating system.
SOLD BY laptopia2005 DO NOT RESELL!! 3-4 Hardware Functional Overview When external memory access is required, the physical address is calculated by the Memory Management Unit and then passed to the Bus Interface Unit (BIU). The BIU provides the interface between the external system board and the processor’s internal execution and cache units. SYSTEM LOGIC CONTROLLER The System Logic Controller function for the notebook is implemented on the system board using UMC 8890 Series Notebook Chipset.
SOLD BY laptopia2005 DO NOT RESELL!! Hardware Functional Overview On-board Memory up to 48 MB Supports Three Memory Banks Supports Page Mode/Burst Mode Operation Supports 512KBx8, 1Mx4, 1Mx16, 2Mx8 and 4Mx4 type DRAM Supports 8 or 16 bit ROM configuration Programmable DRAM timing for each bank Power Management Supports up to Ten Programmable PMC Outputs Supports Multiple Power Saving Mode All Register Read/Writeable for 0V SUSPEND Microsoft APM Compatible Supports 0V SUSPEND Dema
SOLD BY laptopia2005 DO NOT RESELL!! 3-6 Hardware Functional Overview MEMORY SUBSYSTEM The memory subsystem, implemented on the system board, includes ROM and DRAM memory. Primary control for the memory subsystem is provided by the UMC 8890 System Controller chipset. DRAM Memory The NEC Versa 2500 notebooks contain 16 MB of 70ns page-interleaved DRAM on the system board.
SOLD BY laptopia2005 DO NOT RESELL!! Hardware Functional Overview 3-7 VIDEO SUBSYSTEM The video subsystem, implemented on the system board and on the LCD Panel, controls the display output to both the LED Panel and to the external VGA port. The video subsystem utilizes the C&T 65548 High Performance Flat Panel / CRT VGA Controller. It also includes 1 MB DRAM memory, 32-bit DRAM bus, and separate display and memory clocks.
SOLD BY laptopia2005 DO NOT RESELL!! 3-8 Hardware Functional Overview Hardware line drawing 64x64x2 hardware cursor High performance resulting from zero wait-state writes (write buffer) and minimum wait-state reads (internal asynchronous FIFO design) Supports panel resolutions up to 800x600 Supports non-interlaced CRT monitors with resolutions up to 1024x768 at 256 colors True-color and Hi-color display capability with flat panels and CRT monitors up to 800x600 resolution Advanced power
SOLD BY laptopia2005 DO NOT RESELL!! Hardware Functional Overview 3-9 PCMCIA CONTROLLER AND SOCKETS The PCMCIA controller is implemented on the system board using Omega’s 82C094 Interface Controller. The 82C094 is compatible with the Intel i882092AA PCI to PCMCIA controller chip. It supports two independent 68 pin PC card sockets and is register compatible with Intel’s 82365SL. The NEC Versa 2500 Series notebook provides PCMCIA slots that support two Type I, or Type II cards at the same time.
SOLD BY laptopia2005 DO NOT RESELL!! 3-10 Hardware Functional Overview The built-in controller can support any industry standard 2.5-inch IDE hard disk drive at 19mm or 17mm height. Setting up the hard disk type is done automatically by the CMOS Setup program. Setup auto-detects the installed hard disk type settings for optimized performance. NOTE: Do not move the notebook when the HDD LED is activated. This protects the hard disk drive from any accidental damage or loss of data.
SOLD BY laptopia2005 DO NOT RESELL!! Hardware Functional Overview 3-11 Internal Battery Pack The NEC Versa 2500 Series notebooks utilizes NiMH (Nickel Metal-Hydride) that provides DC power for the notebook The battery pack contains ten size A battery cells that provide the system with 12V. When installed in the notebook, the battery LED automatically appears and will also start to recharge whenever the AC adapter is connected to the notebook. Normal charging time for the battery pack is around 1.
SOLD BY laptopia2005 DO NOT RESELL!! Section 4 Field Service Guidelines This section contains preventive and corrective maintenance procedures for the NEC Versa 2500 Series notebook computers. The first part of this section describes the computer cleaning procedures and preferred handling procedures for sensitive components (i.e., disk drives, batteries). The second part of this section identifies all field replaceable parts plus the removal and replacement procedures for these parts.
SOLD BY laptopia2005 DO NOT RESELL!! 4-2 Field Service Guidelines Cleaning the Notebook’s Interior When servicing the inside of the notebook to remove dust and other foreign particles proceed as follows: 1. Remove the top cover, hinge covers, status bar, and keyboard using the disas- sembly procedures discussed later. 2. Dust or vacuum (with a rubber-tipped nozzle) the inside of the system unit, par- ticularly the system board surface. Use care to avoid damaging or dislodging any components or cables.
SOLD BY laptopia2005 DO NOT RESELL!! Field Service Guidelines 4-3 Do not drop the battery packs or subject them to excessive shock and vibration. Do not expose the battery packs to direct sunlight, moisture, or chemical compounds. 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.
SOLD BY laptopia2005 DO NOT RESELL!! 4-4 Field Service Guidelines PARTS REMOVAL AND REPLACEMENT PROCEDURES This section contains field service-level removal/replacement procedures for the notebook. Refer to the exploded diagram later in this section to identify all relevant parts. The NEC Versa notebook is designed for optimum modularity in order to make field replacement maintenance easy and efficient.
SOLD BY laptopia2005 DO NOT RESELL!! Field Service Guidelines 4-5 Removing/Replacing the Hard Disk Drive Module The procedure for removing and replacing the hard disk drive module is as follows: 1. Turn off the computer. Close the LCD cover and turn the whole unit over. 2. You will find a clamp latch (lock knob) that secures the hard disk drive module to the system unit.
SOLD BY laptopia2005 DO NOT RESELL!! 4-6 Field Service Guidelines 3. To replace the diskette drive, remove the four flat screws attaching it to the null diskette assembly , two attaching the diskette cover and remove the diskette drive cable. 4. To replace the diskette drive unit, remove the four small screws attaching it to the null diskette drive assembly and remove the diskette drive cable. 5. To replace the diskette drive module, reverse the above procedure.
SOLD BY laptopia2005 DO NOT RESELL!! Field Service Guidelines 4-7 Removing/Replacing the Keyboard The procedure for removing and replacing the keyboard is as follows: 1. Turn off the computer. Follow all disassembly procedures mentioned from the start of this section. 2. Lift the keyboard out and tilt the upper edge of the keyboard towards you, but do not lift the keyboard away. Rest the keyboard (face down) on the palm rest area. 3. Remove the keyboard cable from the system board’s FPC type connector.
SOLD BY laptopia2005 DO NOT RESELL!! 4-8 Field Service Guidelines 3. Slowly remove the CPU, moving around each side, little by little. Avoid damaging the CPU pins by forcing the CPU out of its slot immediately. Also, do not pull out the CPU heat sink as it is part of the CPU. You must remove the CPU and the heat sink together. 4. To replace the CPU, align it with pin 1 of the socket and plug in the CPU. Make sure that the CPU pins are straight before inserting it.
SOLD BY laptopia2005 DO NOT RESELL!! Field Service Guidelines 4-9 1. Turn off the computer and remove the Battery, Hard Disk Drive, and Diskette Drive Modules. Follow all disassembly procedures mentioned from the start of this section. 2. Turn the System Unit upside down with the bottom facing up. Remove the nine screws securing the base unit assembly from the top unit assembly. 3. Return the back to the normal position. Remove the screw located between the hinges above the LEDs.
SOLD BY laptopia2005 DO NOT RESELL!! 4-10 Field Service Guidelines 3. Remove the two screws and lift the board carefully out of the connections to the system board. Figure 4-3 The LED Board Module Assembly Removing/Replacing the System Board and I/O Board The system board and the I/O board are assembled together as one unit and must be removed from the base unit before being separated from each other. The procedure for removing the system board and I/O board is as follows: 1. Turn off the computer.
SOLD BY laptopia2005 DO NOT RESELL!! Field Service Guidelines Figure 4-4 4-11 The System Board and I/O Boards Separating the System Board and I/O Board The system board is attached directly to the I/O board. The following procedure should be taken to separate the two boards: 1. Turn off the computer. Follow all disassembly procedures mentioned from the start of this section. 2.
SOLD BY laptopia2005 DO NOT RESELL!! 4-12 Field Service Guidelines Figure 4-5 The I/O Board Module Assembly Removing/Replacing the Power Board The procedure for removing the power board is as follows: 1. Turn off the computer. Follow all disassembly procedures mentioned from the start of this section. 2. Remove the two hex spacers from the center of the board and lift the module from the unit. 3. To replace the power board module, reverse the removal procedures mentioned above.
SOLD BY laptopia2005 DO NOT RESELL!! Field Service Guidelines 4-13 ILLUSTRATED PARTS BREAKDOWN This section contains the illustrated parts breakdown (IPB) and NEC part numbers for the NEC Versa 2500 Series computer. Table 4-1 lists field-replaceable parts and corresponding part numbers. Figure 4-7 shows the field-replaceable parts for the docking station.
SOLD BY laptopia2005 DO NOT RESELL!! 4-14 Field Service Guidelines Table 4-1 NEC Versa 2500 Series Field-Replaceable Parts (cont’d)* Item Description Part Number 26 I/O Cover 24-40794-10 27 1.
SOLD BY laptopia2005 DO NOT RESELL!! Field Service Guidelines Figure 4-7 NEC Versa 2500 Series Illustrated Parts Breakdown SOLD BY laptopia2005 DO NOT RESELL!! 4-15
SOLD BY laptopia2005 DO NOT RESELL!! 4-16 Field Service Guidelines Packaging and Documentation Packaging and documentation part numbers are listed in Table 4-2. Table 4-2 Packaging and Documentation Part Numbers Description Model Number NEC Versa 2500 Series User’s Guide 25-10584-00 NEC Versa 2500 Series Service and Reference Manual (this guide) 819-200191-000 Rev.
SOLD BY laptopia2005 DO NOT RESELL!! Section 5 Troubleshooting and Repair This section focuses on providing you with some information on notebook basic troubleshooting as well as the BIOS POST error codes and messages. SERVICE INFORMATION NEC service and information telephone numbers are listed in the following table. Table 5-1 NEC Service and Information Telephone Numbers Service Call To order NEC spare parts In the U.S., call 1(800) 632-4525 To order options in the U.S.
SOLD BY laptopia2005 DO NOT RESELL!! 5-2 Troubleshooting and Repair If it is more convenient, questions may also be faxed to TSC. The TSC fax number is: (508) 635-4666 Along with the complete product name and question(s), be sure to included your name and fax number or Internet address, so that an expert can respond to your question(s). It would also be helpful to include your telephone number in case TSC can not get their answer to you through the Internet or by fax.
SOLD BY laptopia2005 DO NOT RESELL!! Troubleshooting and Repair 5-3 For international; enter the international long distance access number, the U.S. telephone number, or the U.S. extension (01-630-775-7999). 4. Listen to the instructions provided by the automated attendant. Press 1 to skip the FastFacts introduction and jump to the automated instructions for ordering a document or catalog. Press 2 for an introduction to FastFacts, followed by the automated instructions for ordering a document or catalog.
SOLD BY laptopia2005 DO NOT RESELL!! 5-4 Troubleshooting and Repair POWER-ON SELF TEST (POST) This section provides you with the Phoenix BIOS POST errors and messages summary. Refer to this whenever you encounter error messages or beep codes generated by the computer during startup. POST Messages The following is a summary of the Phoenix BIOS startup error messages that are displayed on the notebook’s display.
SOLD BY laptopia2005 DO NOT RESELL!! Troubleshooting and Repair Table 5-2 POST Error Messages (cont’d) Message Possible Cause Action No boot device available press F1 to retry boot, F2 for SETUP utility Either diskette drive A:, the fixed disk, or both the diskette and fixed disk are defective. Try rebooting. If problem persists, replace the diskette or the fixed disk. No boot sector on fixed disk - press F1 to retry boot, F2 for SETUP utility The C: drive is not formatted or is not bootable.
SOLD BY laptopia2005 DO NOT RESELL!! 5-6 Troubleshooting and Repair Table 5-2 POST Error Messages (cont’d) Message Possible Cause Action Keyboard clock line failure The keyboard, the keyboard cable connection, or the keyboard controller is defective. Make sure the keyboard cable and keyboard are connected properly. Check the keyboard controller and the system board. Turn the power off, then back on again. If the problem persists, contact qualified service personnel.
SOLD BY laptopia2005 DO NOT RESELL!! Troubleshooting and Repair Informational Messages This section lists the messages that provide information to the user but require no action. Table 5-3 BIOS Informational Messages Message Meaning NCH Base Memory The amount of base memory that tested successfully. NCH Extended The amount of extended memory that tested successfully.
SOLD BY laptopia2005 DO NOT RESELL!! 5-8 Troubleshooting and Repair Run-time Error Messages The following table lists run-time error messages. Table 5-4 Run-time Error Messages Message Cause Action I/O card parity interrupt at address. Type (S)hut off NCI, (R)eboot, other keys to continue Memory on a peripheral card has failed. Check the memory cards installed in the system. Memory parity interrupt at address. Type (S)hut off NCI, (R)eboot, other keys to continue A memory chip(s) has failed.
SOLD BY laptopia2005 DO NOT RESELL!! Troubleshooting and Repair 5-9 QUICK TROUBLESHOOTING This section summarizes problems that may develop during system operation and lists suggested corrective actions. Table 5-5 Quick Troubleshooting Problem Corrective Actions No power Check that the AC adapter is plugged into the power connector of the system. Also, that the AC adapter is plugged into a properly grounded AC power outlet.
SOLD BY laptopia2005 DO NOT RESELL!! 5-10 Troubleshooting and Repair Table 5-5 Quick Troubleshooting (cont’d) Problem Corrective Actions System halts during boot sequence Check condition of selected bootload device (diskette or hard disk) for bad boot track or incorrect OS files. Try booting from a new bootable diskette and recopy or repartition hard disk. Check for any BIOS error messages on the display screen. Replace the system board.
SOLD BY laptopia2005 DO NOT RESELL!! Troubleshooting and Repair Table 5-5 Quick Troubleshooting (cont’d) Problem Corrective Actions PCMCIA card does not work Check the PCMCIA driver installation for any IRQ or IO address conflict. Check if the PCMCIA card is inserted properly and all connections are set. Replace the PCMCIA card. Check for work around for the card being used. Replace the system board. Serial device does not work Check if the serial device is connected properly.
SOLD BY laptopia2005 DO NOT RESELL!! Appendix A Video Modes The C&T 65548 VGA chipset supports high resolution fixed frequency and variable frequency analog monitors in interlaced and non-interlaced modes of operation. Digital monitor support is also built-in. The tables in this section list all 65548 CRT monitor video modes. NOTE: The letter “I” under the Hex Mode column for the succeeding tables denotes Interlaced monitors. VGA STANDARD MODES The following table lists VGA standard modes.
SOLD BY laptopia2005 DO NOT RESELL!! A-2 Video Modes Table A-2 VGA Standard Modes (Graphics Mode) Hex Mode No. of Colors Text Display Font Size Pixel Resolution Dot Clock MHz Horiz. Freq. KHz Vert. Freq. Hz 4 4 40 x 25 8x8 320 x 200 25.175 31.5 70 5 4 40 x 25 8x8 320 x 200 25.175 31.5 70 6 2 80 x 25 8x8 640 x 200 25.175 31.5 70 Table A-3 VGA Standard Modes (Planar Mode) Hex Mode No. of Colors Text Display Font Size Pixel Resolution Dot Clock MHz Horiz. Freq.
SOLD BY laptopia2005 DO NOT RESELL!! Video Modes A-3 VGA EXTENDED MODES The C&T 65548 VGA BIOS supports standard VESA and extended modes, listed in the following table. Table A-5 VGA Extended Modes (Text Mode) Hex Mode No. of Colors Text Display Font Size Pixel Resolution Dot Clock MHz Horiz. Freq. KHz Vert. Freq. Hz 60 16 132 x 25 8 x 16 1056 x 400 40.0 30.5 68 61 16 132 x 50 8 x 16 1056 x 400 40.0 30.5 68 Table A-6 VGA Extended Modes (4-Bit Linear Mode) Hex Mode No.
SOLD BY laptopia2005 DO NOT RESELL!! A-4 Video Modes Table A-9 VGA Extended Modes (16-Bit Linear Mode) - 1MB Video Memory Only Hex Mode No. of Colors Text Display Font Size Pixel Resolution 41 64K 80 x 30 8 x 16 640 x 480 Table A-10 Dot Clock MHz 50.350 Horiz. Freq. KHz 31.5 Vert. Freq. Hz 60 VGA Extended Modes (24-Bit Linear Mode) Hex Mode No. of Colors Text Display Font Size Pixel Resolution 50* 16 80 x 30 8 x 16 640 x 480 Table A-11 Dot Clock MHz 65.0 Horiz. Freq. KHz 27.
SOLD BY laptopia2005 DO NOT RESELL!! Video Modes VGA HIGH REFRESH MODES The following tables list VGA high refresh modes. Table A-13 VGA High Refresh Modes (Packed Pixel Mode) Hex Mode No. of Colors Text Display Font Size Pixel Resolution Dot Clock MHz Horiz. Freq. KHz Vert. Freq. Hz 30 256 80 x 30 8 x 16 640 x 480 31.5 37.5 75 32* 256 100 x 37 8 x 16 800 x 600 49.5 46.9 75 Table A-14 VGA High Refresh Modes (Planar Mode) Hex Mode No.
SOLD BY laptopia2005 DO NOT RESELL!! BATTERY REPLACEMENT A 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.
SOLD BY laptopia2005 DO NOT RESELL!! Index A AC adapter connecting, 1-9 AC power adapter, 3-10 AC/DC adapter specifications, 2-16 B Battery removing, 1-8 Battery charger specifications, 2-15 Battery compartment latch, 1-13 Battery compartment release lock, 1-8 Battery packs handling, 4-2 Battery specifications, 2-14 Battery types, 1-8 BIOS, 3-2 BIOS informational messages, 5-7 BIOS Setup utility, 1-14, 3-3 BIOS upgrade procedure, 1-20 C CD-ROM reader specifications, 2-14 Cleaning the notebook exterior, 4-
SOLD BY laptopia2005 DO NOT RESELL!! Index-2 I I/O board specifications, 2-10 I/O subsystem, 3-6 Illustrated Parts Breakdown (IPB), 4-13 Intel P54CSLM, 3-3 K Keyboard, 1-5 Keyboard controller, 3-8 Keyboard specifications, 2-16 L LCD cover switch, 1-4 LCD inverter board, 3-11 LCD quality maintaining, 4-3 LED indicator board specifications, 2-9 LED status indicators, 2-13 M Memory DRAM, 3-6 ROM, 3-6 upgrading, 1-19 Memory compartment, 1-7 Memory compartment cover, 1-13 Memory configurations, 1-19 Memory cont
SOLD BY laptopia2005 DO NOT RESELL!! Index-3 T Technical support contacting, 5-1 Transfer board specifications, 2-8 Troubleshooting checklist, 5-3 V VersaGlide subsystem, 3-10 VGA extended modes, A-3 VGA high refresh modes, A-5 VGA port, 1-11 VGA standard modes, A-1 VGA VESA driver diskette, 1-11 Vibration specifications, 2-22 Video controller, 3-7 features, 3-7 Video modes, A-1 Y Y-adapter, 1-10 SOLD BY laptopia2005 DO NOT RESELL!!