NEC Versa 2785MT Reference Manual

PROPRIETARY NOTICE AND LIABILITY DISCLAIMER

The informa tion disc losed in this docu ment, inc luding a ll des igns a nd r ela t ed mat eri a ls, is t he valua ble pr oper ty of NEC Compu ter S yst ems Division, P acka r d Bell NE C, Inc. ( NEC CS D, PBNE C) and/ or it s licensors . NEC CS D and/or its lic ensors, as a ppr opr iate, reserve a ll pa tent, copyright and other proprieta ry rights to this document, including a ll design, manu f acturing, r epr oduct ion, u se, a nd sa les r ight s ther eto, except to t he ext ent s aid r ights a re ex pr essly granted to others.

The NEC CSD produ ct(s) disc ussed in this document a re warr anted in acc ordance with t he terms of the Wa r ra nt y St at ement acc ompanying ea ch p rodu ct. However , a ct ua l p erfor manc e of each s uc h product is dependent u pon f a ct or s su ch a s s yst em configu r a t ion, c us t omer da t a , 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, Versa is a U.S. registered trademark, VersaGlide, and PortBar are trademarks, and UltraCare is a

U.S. registered service mark of NEC Corporation, used under license. FaxFlash is a service mark of NEC Computer Systems Division (NECCSD), Packard Bell NEC, Inc. All other product, brand, or trade names used in this publication are the property of their respective owners.

Second Printing — November 1997

NEC Computer Systems Division, Packard Bell NEC, Inc.

1414 Massachusetts Avenue

Boxborough, MA 01719

Preface

This service and reference manual contains the technical information necessary to set up and maintain the NEC Versa® 2700 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.

The manual is organized as follows: Section 1  Technical Information, provides an overview of the hardware and interface

components. Section 2  General Specifications, lists system specifications including dimensions,

weight, environment, safety compliance, and power consumption. Section 3  Hardware Functional Overview, defines major system functions and subsys-

tems.

ix

Section 4  Troubleshooting and Repair, lists technical support phone numbers, error messages and their meanings, and ways to troubleshoot problems users encounter with the notebook.

Section 5  Field Service Guidelines, provides system disassembly procedures, and an exploded-view diagram with corresponding part numbers.

Appendix A  Video Modes, provides a list of video modes available for use with the notebook.

An Index is included for convenience.

(For United States Use Only)

FEDERAL COMMUNICATIONS COMMISSION

RADIO FREQUENCY INTERFERENCE STATEMENT

!

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

with the lim its for a Class B digit al device, pursuant to Part 15 of the FCC Rules. These lim its are designed to provide reasonable protection against harmful interference in a residential installat ion. This equipm ent generates, uses and can radiate radio fr equency energy and, if not installed and used in accordance with the instructi ons, may cause harm ful interference to radi o communications.

However, there is no guarantee that interference will not occur in a particular installation. If this equip men t does cause h ar m ful in terferen ce to ra di o or tel evisi on r ecept i on, wh ich can be det er mi n ed by tur ning th e equipmen t off and on, the user i s encoura ged to try to corr ect the i nterfer ence by one or more of the following measures.

This is a Class B Digital Device. This equipment has been tested and found to comply

WARNING



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

Technical Information

This section focuses on describing features and operations of the NEC Versa 2700 Series notebook computer, including the BIOS Setup program. (Refer to the user’s guide for more information on operating the notebook.) The NEC Versa 2700 Series notebooks are lightweight, compact, and fully IBM compatible.

The NEC Versa 2700 Series notebook comes in the following model configurations.

Table 1-1 Model Configurations*

Configuration Versa 2730M

Versa 2730MT

CPU

L2 Cache On-Board

Memory SO-DIMM

Memory Video Memory LCD - Unit

Intel™ P55C 133MHz (MMX)

256 KB 256 KB 256 KB or 512 KB None None None

16 MB 16 MB 16 MB or 32 MB

None None None Versa 2730M

12.1” DSTN SVGA EDMGR68KCF / Panasonic

Versa 2730MT

12.1” TFT SVGA NL80060BC31-02 / NEC

Versa 2750MT Versa 2760MT

Versa 2750MT Intel P55C 150MHz (MMX)

Versa 2760MT Intel P55C 166MHz (MMX)

12.1” TFT SVGA NL80060BC31-02 / NEC

Versa 2770MT Versa 2780MT

Versa 2770MT Intel P55C 200MHz (MMX)

Versa 2780MT Intel P55C 233MHz (MMX)

12.1” TFT SVGA NL80060BC31-02 / NEC

Hard Disk Drive

Diskette Drive

1.44 GB MK1403MAV/ Toshiba

3.5” (3 mode) FD1238T-002 / NEC

2.10 GB DK225A-21/Hitachi

3.5” (3 mode) FD1238T-002 / NEC

2.10 GB DK225A-21/Hitachi

3.5” (3 mode) FD1238T-002 / NEC

1-2 Technical Information

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Table 1-1 Model Configurations* (cont'd)

Configuration Versa 2730M

Versa 2730MT

CD-ROM

Keyboard Unit

Pointing Device

PCMCIA

EEP / ECP Parallel Port

Serial Port VGA Port PS/2 Port DC-In Jack Fax/Modem

(USA, JP, and Aus. Only)

16X CD-316E / TEAC

85 Ke (Windows US, UK, GR, FR/ ALPS

Touchpad KGDDDH/ALPS

2 x T 1 x Type III

Yes Yes Yes

Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 56 K, SW DSVD/

Venus

s

®

pe II/

95)

Versa 2750MT Versa 2760MT

16X CD-316E / TEAC

85 Ke (Windows 95) US, UK, GR, FR/ ALPS

Touchpad KGDDDH/ALPS

2 x Type II/ 1 x Type III

56 K, SW DSVD/ Venus

s

Versa 2770MT Versa 2780MT

20X CD-220E / TEAC

85 Ke (Windows 95) US, UK, GR, FR/ ALPS

Touchpad KGDDDH/ALPS

2 x Type II/ 1 x Type III

56 K, SW DSVD/ Venus

s

Audio Port FIR Port USB Port Expansion Port Battery Pack

AC Adapter

Power Cord

*NEC also ships a 150 MMX DSTN model outside of the U.S.

Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes NiMH (3300 mAh)

8HR-4/3AU-YZN/ Sanyo

45 W ADP52 / Astec or Liteon US/UK/Aus/Ger/JP US/UK/Aus/Ger/JP US/UK/Aus/Ger/JP

Li-Ion (2600 mAh) 4UR18650-2-YZN/ Sanyo

45 W ADP52 / Astec or Liteon

Li-Ion (2600 mAh) 4UR18650-2-YZN/ Sanyo

45 W ADP52 / Astec or Liteon

Technical Information 1-3

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Figure 1-1 NEC Versa 2700 Series Notebook

FEATURE HIGHLIGHTS

The NEC Versa 2700 Series notebook includes a variety of innovative features designed to meet the most demanding computing requirements.

Table 1-2 Feature Highlights

Features Description CPU

SO-DIMM Memory

Cache RAM Display

VGA Chip

HDD

Intel P55C-133/150/166/200/233 MHz MMX processor with internal 32 KB cache memory and math coprocessor

16 MB, 32-MB, or 64-MB of SO-DIMM RAM, can be up MB

256 KB/512 KB (Versa 2770MT/Versa 2780MT), L2 cache

12.1” DSTN or 12.1” TFT VGA Color LCD at 800 x 600 pixels resolution with 64K colors

2 MB DRAM, 24-bit true-color RAMDAC, Graphics/Video Accelerator, Dual clock s Buffer Data Strippin 32-bit compliance interface

Removable 2.5-inch IDE high-capacity hard drive (12.7 mm height)

nthesizer, ZV (Zoomed Video) port, Z-

, PCI Bus Mastering, and a high-speed glueless

raded to 128

FDD Keyboard

Built-in 3.5-inch,1.44 MB diskette drive Built-in 85-ke

embedded numeric ke dedicated screen control ke enhanced 85-key compatible keyboard

keyboard with 12 programmable function keys,

pad and special function control keys,

s, and inverted “T” cursor keys/IBM

1-4 Technical Information

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Table 1-2 Feature Highlights (cont'd)

Features Description Pointing Device

PC Card Slots

I/O Ports

Audio System

Power System

VersaGlide Touchpad Two slots that support two T

Type III 1 x Serial Port (w/ FIFO)/1 x Printer Port (ECP/EPP)/1 x VGA Port/

1 x PS/2 ke Port/1 x Infrared Port

Headphones, Line-In, Microphone, and manual volume control/ built-in stereo speakers and woofer

Auto-switchin Li-Ion Battery pack / Advanced power management capabilities

board & mouse port/1 x Modem Port/1 x Expansion

AC Adapter (100V - 240V) / Rechargeable NiMH or

pe II PC cards at the same time, or one

Technical Information 1-5

SYSTEM CONFIGURATION

The following diagram shows the NEC Versa 2700 Series system configuration.

Pentium P54C,

P55C, or Tillamook

Support (TCP)

CPU

Cache RAM

L2: 256KB or

512KB

Versa 2770MT/

(

Versa 2780MT)

BIOS

Flash ROM

Bank 2 (Slot 2)

16/32/64MG

So-DIMM

Bank 1 (Slot 1)

16/32/64 MB

soDIMM

Fax/Modem

Audio

CD ROM

Color LCD (800x600)

DSTN and TFT

PCI Bus

Controller

(VGA)

NEC VersaGlide

Keyboard

Serial Interface

(RS-232)

Parallel

Interface

External VGA

Monitor

PS/2 Keyboard

and

PS/2 Mouse

RS-232C

Peripheral

Printer

Removable HDD

3.5" FDD

PCMCIA Card

Slot x 2

Battery Pack

PCMCIA Card

FIR/IR

Figure 1-2 System Configuration Diagram

1-6 Technical Information

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 2700 Series computer.

Color LCD Display Panel

The notebook has either a built-in 12.1-inch passive-matrix dual scan DSTN or a 12.1-inch active-matrix TFT color liquid crystal display (LCD) which you can adjust and tilt to your desired viewing position. The LCD provides 800x600 pixel resolution with a maximum of 256 K colors, and supports simultaneous display with an external VGA monitor. The system also supports view panning when the resolution of the CRT is greater than 800 x 600.

The LCD screen also uses Cold Cathode Fluorescent Tube (CCFT) backlighting which consumes most of the power from the notebook. To save battery power, the system has an advanced power management feature that powers down the LCD when it has not been used for a predetermined amount of time. You can adjust the brightness and contrast level of the LCD by using the slide bars under the LCD panel on the front of the system.

Power and Suspend Status LEDs

Figure 1-3 LCD Panel

Contrast Control

Brightness Control

Technical Information 1-7

Power Button/LCD Cover Switch

The power button, when pressed, turns on the notebook’s power. Press it again to turn computer power off. Whenever the notebook is in “save-to-file” suspend mode, the power button serves as a manual resume switch, allowing you to continue your application work where you left off.

NOTE

turning off and turning on the power.

:

Always wait for a few seconds between

The LCD cover switch is connected to the right hinge of the LCD Assembly. This switch automatically depresses and releases when you lower or raise the LCD display panel. Depending on your power management settings, this switch either converts the notebook to the Suspend mode or shuts off the LCD when you close the cover.

Status Panel and Power Indicator

Directly below the LCD display, in the center, is the System Status LED panel. These LED’s provide an easy way to determine the current power mode of the unit. Below these two LED’s, on the system unit display, is a row of five (5) more. These LED’s light to indicate whether a device is being accessed, an operation is being done, or if a certain mode is or has been activated.

Power LED

Battery Charging LED

Suspend Mode LED

Figure 1-4 System Status LED Panel

Hard Drive Access

Access

Caps Lock

Scroll LockDiskette Drive

Figure 1-5 Device Status LED Panel

Num Lock

1-8 Technical Information

Keyboard

The notebook has a built-in 85-key keyboard that provides complete emulation of a fullsized IBM AT-enhanced keyboard with function keys and screen/cursor control keys.

Figure 1-6 Standard Keyboard Layout

The notebook’s keyboard also includes an embedded numeric keypad, and some special function keys that are activated by pressing the Fn key together with another key. These special function keys (more popularly known as “hot keys”) allow you to control and adjust some of the notebook’s functions like; display controls, speaker volume, and power management features. The embedded numeric keypad is activated by pressing the key. Once the

Num Lock

key is pressed, the upper blue symbols become active.

Num Lock

NOTE

ables the alphanumeric keys where the embedded keys are located. Press the disable the embedded keys and resume normal keyboard operation.

:

Activating the

Num Lock

key in turn dis-

key again to

Table 1-3 Fn Key Combination Summary

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g

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Key Combination Function

Technical Information 1-9

Fn

key + F2 key

Fn key +

Fn

key + F4 key

Fn

key + F5 key

Fn

key + F6 key

Fn

key + F7 key

Fn

key +

Fn

key +

key

Fn

key + Suspend

Button Power Switch +

Suspend Button

F3

key

F12

key

Left Ctrl

This key combination toggles the highlight of DOS text. This ke

LCD displa of LCD and CRT.

This key combination puts the system in Standby mode. This ke

between standard and full. This ke

High volume. This key combination selects the desired P/M level. This key combination enables the Scroll Lock function. This key combination simulates the right Ctrl key functions.

This key combination enables Save-to-Disk on demand.

This key combination forces the power off.

combination toggles between video display output to the

, to an external CRT monitor, to a simultaneous displa

combination toggles the LCD display backlighting (CCFT)

combination sets the system speakers to Low, Medium, or

Table 1-4 Hot Keys Supported by the External Keyboard

External Keyboard Combination

Ctrl

key

Ctrl

key

Ctrl

key

Ctrl

key

Ctrl

key

key +

Alt

key +

F2

F3

F5

F6

F7

Function

This key combination toggles the highlight of DOS text.

This ke the LCD displa simultaneous display of LCD and CRT.

This ke (CCFT) between standard or full.

This ke Medium, or High volume.

This ke level.

combination toggles between video display output to

, to an external CRT monitor, or to a

combination toggles the LCD display backlightin

combination sets the system speakers to Low,

combination selects the desired power management

1-10 Technical Information

The notebook’s keyboard also features an embedded editing keypad, which offers an optional method for editing and moving within documents. The embedded editing keys are color coded in blue and embedded on the front side of the embedded numeric keypads. To use these editing keys, first press the

Num Lock

key and then combine the

key and the

Shift

desired function key to enable these editing keys. When the embedded editing keys are operational, the Num Lock LED will be activated. To return to normal keyboard operation, press the

VersaGlide

Num Lock

key again.

NOTE:

bedded numeric key pads are activated.

When the Num Lock LED glows the em-

In front of the keyboard panel, in the center of the palm rest typing surface, is the VersaGlide pointing device. The buttons below the touchpad are configured (by default) as the left and right button, respectively. The left button is configured as the left mouse button. The right button is configured as the right mouse button. Moving the pointer on the screen is done by moving your finger over the surface and directing the pointer where you want it to go. The touchpad also supports single and double tap capabilities that mimic the left button.

Figure 1-7 VersaGlide

Under the Palm Rest in Front of the Notebook

This section describes the features on the front side of the NEC Versa 2700 Series computer.

Hard Disk Drive

The notebook’s internal hard drive is under the palm rest on the right side. The NEC Versa 2700 Series provides an industry standard 2.5-inch, 1.4-GB or 2.1-GB IDE hard disk drive, upgradeable to 3 GB or 4GB. The system BIOS also includes Auto IDE detection and LBA mode for easy installation as well as later upgrades for higher capacity disk drives.

Technical Information 1-11

Memory Module Compartment

The memory compartment is located under the palm rest. Inside the compartment are two memory module sockets (Bank 1 and Bank 2) that can accommodate 16-/32-/64-MB SODIMM modules. Bank 1 accepts 1.75-inch modules as well as 1-inch modules; Bank 2 only accepts standard 1-inch modules.

Figure 1-8 Memory Module Sockets

Right Side of the Notebook

This section describes the features on the right side of the NEC Versa 2700 computer.

Non-Removable Floppy Disk Drive

The disk drive, which supports 3.5-inch 1.44-MB high-density (HD) diskettes or 720 KB double-sided (DS) diskettes is on the right-front side of the notebook. Insert the diskette with the metal shutter towards the drive and the diskette label facing up. To remove the diskette, press the Eject button found on the upper right of the diskette drive.

Battery Compartment

The battery compartment is on the right side bottom rear of the notebook. It houses the rechargeable NiMH battery pack or Li-Ion battery pack. The battery pack begins charging whenever you connect the AC adapter to the notebook. It is very important to always have the battery installed on the notebook and to have it always charged. Leaving the battery pack out of the unit for a long period of time completely drains the battery cells.

1-12 Technical Information

NOTE:

Type A battery packs with 3300mAh (NiMH) or 2600mAh (Li-Ion).

The NEC Versa 2700 Series models use

DC-IN Connector Jack

The NEC Versa 2700 series provides an universal auto-switching AC adapter which connects the AC power cord into the power outlet. It is important to have the AC adapter connected to the notebook to recharge the battery and keep the notebook working continuously.

NOTE:

the NEC Versa 2700 Series notebook.

Use only the AC adapter that comes with

Figure 1-9 Connecting the AC Adapter to the Notebook

Technical Information 1-13

Left Side of the Notebook

The following details the left side of the NEC Versa 2700 Series computer.

Figure 1-10 Left Side of the Notebook

PC Card Slot Compartment

The compartment houses two card slots that support two Type II devices, or one Type III device. Open the compartment door to view the PC card slots. Insert Type III cards into the lower slot. Insert the card with the pin sockets facing towards the drive and the label facing up. Once the card is inserted, pivot the eject button (which pops out) to the side. To remove the PC card, pivot the eject button out, then push on the Eject button to release the pin connections. Slowly pull out the card.

The NEC Versa 2700 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 upper PC card slot is referred to as “Slot 0” while the bottom slot is referred to as “Slot 1.” Slot 0 always takes precedence over Slot 1 in drive designations.

1-14 Technical Information

Figure 1-11 Inserting a PC Card

The USB Connector

The USB is a cable bus that supports data exchange between a host computer and a wide range of simultaneously accessible peripherals. The attached peripherals share USB bandwidth through a host scheduled token based protocol. The bus allows peripherals to be attached, configured, used, and detached while the host and other peripherals are in operation. This is referred to as dynamic (or hot) attachment and removal.

The FIR Window

This window allows wireless communication with any IrDA compliant device (such as another IrDA computer or printer) without the use of a cord or cable. This port transmits up to 4 M bits per second.

The Audio Jacks and Thumbwheel Volume Control

Microphone Jack — Connects to an external microphone. Line-In Jack — Connects to a line-in device such as a synthesizer, stereo Walkman, or an

audio CD player. Headphones — Connects to headphones or amplified speakers.

Technical Information 1-15

Thumbwheel Volume Control — Allows the user to precisely adjust the sound volume.

The Fax/Modem

All models of the system feature a built-in (56Kbps capable, K56 felx compliant) fax/modem freeing the PC card slots for other uses.

Rear of the Notebook

The following details the rear side of the NEC Versa 2700 Series computer.

Figure 1-12 Rear Side of the Notebook

External Keyboard and PS/2 Mouse Port

The external keyboard and PS/2 mouse port allows you to connect an external full-sized IBM AT-enhanced keyboard or a PS/2 mouse. When an external keyboard is connected, both the built-in keyboard of the notebook and the external keyboard can be used simultaneously.

The NEC Versa 2700 Series also accepts an optional Y-connector adapter allowing simultaneous use of an external AT-enhanced keyboard and a PS/2 mouse. When using DOS or Windows for Workgroups, if an external serial mouse is installed, the VersaGlide is not supported.

1-16 Technical Information

Figure 1-13 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 64K colors.

The NEC Versa 2700 Series provides a VGA VESA driver file set for installing different display resolution drivers for Windows Setup. These are on the Product Recovery CD You can also toggle the display between the LCD and the external monitor by pressing

Fn F10

key combination.

NOTE:

nal monitor only shows 800x600 resolution, if the computer is running with Simultaneous display, but the screen image size is reduced. This enables the image to be panned around the screen if wanted. Toggle the display to the external monitor only in order to display a full screen image.

Refer to Appendix A for a list of supported video modes.

When set to 1024x768 resolution, the exter-

Technical Information 1-17

Figure 1-14 Connecting an External Monitor

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.

Figure 1-15 Connecting to the Printer Port

Serial Port (COM1)

The 9-pin serial port provides a serial interface for a RS-232C device such as external serial modem. This port is commonly referred to as COM1.

1-18 Technical Information

Figure 1-16 Connecting to the Serial Port

NOTE

ing an external parallel or serial device. After turning on the power again, run the BIOS Setup program if needed.

:

First power off the system before connect-

SYSTEM BIOS SETUP PROGRAM

This section provides the features and operation of the AMIBIOS Setup program used in the NEC Versa 2700 Series. The BIOS (Basic Input-Output System) Setup program lets you change the system configuration settings such as the current date and time, port settings, and power management.

The screens and tables show the basic type of information but may not depict the latest avialable BIOS settings.

As POST (Power-On Self Test) executes during boot up process, the screen displays the following message:

Press F2 to Enter SETUP

Press F2 to run the BIOS Setup program. The BIOS Setup program is organized into five (5) pages of menus. Select the menu you want to change, then press one option to another, you use the ↑ and ↓ keys while using settings. To return to the initial menu, press

Esc

.

PgUp

and

. To move from

Enter

to modify the

PgDn

To exit the BIOS Setup program, move the cursor down (on the Setup Utility page) to either

Save Settings and Exit

or

Exit Without Saving

and press

Enter

.

Technical Information 1-19

THE BOOT SETUP MENU

The AMIBIOS Setup Utility menu allows you to select one of the following menus: Standard CMOS Setup, Advanced CMOS Setup, Power Management Setup, or Peripheral Setup. You can also load Default Configurations as well as select to use (or change) the Supervisor and/or User Password from this menu.

Figure 1-17 The AMIBIOS Setup Utility Menu

1-20 Technical Information

Item Function

Table 1-5 Setup Utility Menu

Standard CMOS Setup

Advanced CMOS Setup

Power Management Setup

Peripheral Setup

Change Supervisor Password

Auto Configuration with Defaults

Save Settings and Exit

Exit Without Saving This option exits CMOS Utility setup without saving any of

Pressing menu.

Pressing

This option allows you to set the Supervisor Password.

This option allows you to set the system defaults.

This option exits CMOS Utility setup and saves all changes.

your changes.

Enter

directs you to the Standard CMOS Setup

Enter

directs you to the Advanced CMOS Setup

Enter

directs you to the Power Management Setup

Enter

directs you to the Peripheral Setup menu.

Figure 1-18 shows the standard CMOS setup window.

Figure 1-18 The Standard CMOS Setup Menu

Technical Information 1-21

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Table 1-6 Standard CMOS Setup Menu

Item Function

System Date This option changes the system date, using the format:

month/day/year

from your operating system’s command prompt.

System Time This option changes the system time, using the format:

Hour/Minute/Second

or from your operating system’s command prompt.

Diskette Drive A: This option specifies the type of diskette drive mounted inside

the notebook. The default setting for this option is

Pri Master This option specifies the type of primary hard drive mounted

inside the notebook. Always select the the BIOS to automaticall the hard drive. Some hard drives, however do not respond correctl select recommended drive parameters. The default settin option is

to the values detected. In such cases, you must

User Defined

Auto

. You can change the system date here or

. You can change the system time here

Reserved

Auto

option to instruct

detect the relevant parameters of

and manually enter the manufacturer’s

.

for this

.

Sec Master This option automatically detects the type of secondary hard

disk drive mounted inside the notebook, if you are using one.

32 Bit Mode

This option should be On only if supported by the controller. The default for this option is

Off

.

1-22 Technical Information

Figure 1-19 shows an example advanced CMOS setup window.

Figure 1-19 The Advanced CMOS Setup Menu

Technical Information 1-23

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Table 1-7 Advanced CMOS Setup Menu

Item Function

Plug and Play Aware O/S

Bootup Sequence Allows you to configure the notebook to which drive it will first

Initial Display Mode

Bootup Num-Lock

LCD Panel View Expansion

Password Check

Selects the AMIBIOS boot configuration.

stem boots to a Plug and Play aware operating system,

s such as Windows 95. automaticall operating system. The default for this setting is

to look for the operating system. The available options are

tr

“C:, A:” “C:, A:”

and then look at the diskette drive.

“A:, C:”

and then look at the hard drive. The default for the system is Selects the start-up logo dislplay. Selecting

the Windows 95 Logo while selecting NEC Logo. The default is

Specifies whether NumLock is startup. The default is

Selects the panel view mode. some video modes. adversely affect the graphic/text quality. The default is

Specifies a password check level. Selecting a password for entering this utility. Selecting quires a password for enterin and resuming from Suspend. When

Ctrl+Alt+Backspace

ing password is entered. The Caps Lock and Scroll Lock LED’s flash in sequence, while waitin word.

detects that there is a Plug and Play aware

“A:, C:.”

or means that the system first looks at the hard drive

means that the system first looks at the diskette drive

“Auto”

“Off.”

“On”

indicates the system

“A:, C:.”

“Silent.”

“On”

“Off”

expands the panel view, but it may

this utility, booting the system,

locks up the keyboard until the

for the user to enter a pass-

“Yes”

indicates the

“No.”

“BIOS”

“Silent”

“Off”

or

reduces the panel view in

“Setup”

“Always”

displays

displays the

at system

requires

“Always”

is set, press-

“Off.”

re-

1-24 Technical Information

g

y

g

y

g

y

Figure 1-20 shows an example power management setup window.

Figure 1-20 The Power Management Setup Menu

Table 1-8 Power Management Setup Menu

Item Function

Power Mana Under AC

Power Savings Level

ement

Selecting outs when AC power is connected, but the function ke work for immediate power savin

Selecting

ardless of whether AC is connected or not.

re Default for this option is

This option allows mode.

“OFF”

allows

“High Perform” “Longest life”

“Off”

disables all BIOS Power Management time-

s still

s.

“On”

keeps the current power management level

“Off.”

ou to select the proper power savin

disables all BIOS Power Management time-outs and

ou to set your own customized settings.

provides improved system performance

provides the best battery life.

The default for this option is

“Longest Life.”

g

y

g

y

Table 1-8 Power Management Setup Menu (cont’d)

Item Function

Suspend Option Selecting

Power Mana Suspend/Resume button. Selecting saves the s notebook. resume, press the Power button. The default for this option is

“Suspend.”

Technical Information 1-25

“Suspend”

ement mode. To resume, press the

stem state to the system disk and powers off the

“STF”

allows a fast resume time and is a

“STF”

(Save to File)

mode is a Power Management mode. To

Auto Save To File If this feature is

Save To File (STF) mode after thirt the Suspend mode.

Panel Backlight Selects the LCD screen backlight intensity.

“Auto” “Standard”

inactivity.

“Full” “Standard”

The default for this option is

Suspend Warnin Tone

Modem Ring Resume Chooses whether the system automatically resumes when the

Wake Up Alarm Lets you set a resume time from Suspend mode. The default

Specifies whether the s pend mode starts. Select tone. Default for this option is

modem receives a transmission. The default for this option is

“On.”

for this option is a

automatically switches the backlight from

gives the highest level of backlight intensity.

“Resume Alarm Time.”

“Enabled,”

after 15 seconds of keyboard and PS/2 mouse

helps save battery life.

“Off”

the system automatically enters

(30) minutes of being in

“Full’

“Full.”

stem warning tone sounds when Sus-

“On”

to enable Suspend warning

“On.”

. If you select

‘On’

you must designate

to

1-26 Technical Information

Figure 1-21 shows an example peripheral setup menu window.

Figure 1-21 The Peripheral Setup Menu

Technical Information 1-27

g sy

g

y

g

Table 1-9 Peripheral Setup Menu

Item Function

Serial Port

Parallel Port

Parallel Mode ECP provides the best performance and is recommended.

IR Serial Port

Sound

PortBar Joystick

Selecting conflict free resource to this device. Selecting frees the resources for other devices and prevents a PnP operating system from using this device. The

Setup”

operatin option is

Selecting flict free resource to this device. Selecting the resources for other devices and prevents a PnP operatin systems from using this device. The appears if the device was confi system, such as Windows 95. The default for this option is

“Auto.”

Certain devices ma lel mode. Please refer to that device’s documentation. The default for this option is

Selecting flict free resource to this device. Selecting the resources for other devices and prevents a PnP operatin system from using this device. The appears if the device was confi system, such as Windows 95. The default for this option is

“Disabled.”

Selecting flict free resource to this device. Selecting the resources for other devices and prevents a PnP OS from using this device. The device was confi Windows 95. The default for this option is

This option allows you to joystick.

“Auto”

option appears if the device was configured by a PnP

“Auto.”

“Auto”

lets AMIBIOS automatically assign a

“Disabled”

“PnP OS

stem, such as Windows 95. The default for this

lets AMIBIOS automatically assign a con-

“Disabled”

“PnP OS Setup”

ured by a PnP operatin

only work properly with a specific Paral-

“ECP.”

lets AMIBIOS automatically assign a con-

“Disabled”

“PnP OS Setup”

ured by a PnP operatin

lets AMIBIOS automatically assign a con-

“Disabled”

“PnP OS Setup”

ured by a PnP operating system, such as

“Enable”

option appears if the

“Auto.”

“Disable”

or

frees option

frees

option

frees

the PortBar

1-28 Technical Information

SYSTEM UPGRADES

The NEC Versa notebook is easily upgradable to a higher capacity hard drive. In addition, you can add an optional second memory module to increase the system memory up to 128 MB. This section provides the settings needed as well as illustrations for upgrading the system.

For NEC Versa 2700 Series notebooks, the following memory configurations are applicable:

Table 1-10 16-MB Memory Configurations

Upper Socket Lower Socket Total Memory

16 MB empty 16 MB 16 MB 16 MB 32 MB 16 MB 32 MB 48 MB 16 MB 64 MB 80 MB

Table 1-11 32-MB Memory Configurations

Upper Socket Lower Socket Total Memory

32 MB empty 32 MB 32 MB 16 MB 48 MB 32 MB 32 MB 64 MB 32 MB 64 MB 96 MB

Table 1-12 64-MB Memory Configurations

Upper Socket Lower Socket Total Memory

64 MB empty 64 MB 64 MB 16 MB 80 MB 64 MB 32 MB 96 MB 64 MB 64 MB 128 MB

Section 2

General Specifications

The following table lists NEC Versa 2700 Series system specifications.

Table 2-1 NEC Versa 2700 Series Specifications

Item Specification

CPU Pentium P55C-133/150/166/P55CLM-200/233 MHz

with MMX TCP Package On-Board Memory 16 MB SO-DIMM Module

Slot

System Management

Power Management Operational Modes:

Hard Disk Drive Removable HDD Module

CD-ROM Reader Built-in CD-ROM Reader 13.7mm High

Two Slots

16 MB in first slot

Upgradeable to 128 MB

256 KB L2 Cache

2M (256K x 8) Flash BIOS:

Includes System and VGA

Shadow BIOS Capability

Full On Mode

Standby Mode

Suspend to DRAM (STR)

Suspend to File (STF)

Peripheral Automatic Power Down

Cover Switch Support

Suspend/Resume Button

2.5-inch format/12.7mm high

Enhanced IDE Interface

Support IDE PIO mode up to MODE 4

Support IDE MASTER MODE

1.4 GB/Higher Capacity Upgrade

16X speed (maximum, variable speed support

Versa 2730M, Versa 2730MT, Versa 2750MT, Versa 2760MT)

20X speed (maximum, variable speed support

Versa 2770MT, Versa 2780MT)

Both readers have an IDE Interface Diskette Drive Non-Removable Diskette Drive

720 KB/1.2 MB/1.44 MB Mode Support (3 mode)

2-2 General Specifications

y

g

y

Table 2-1 NEC Versa 2700 Series Specifications (cont’d)

Item Specification

Display 12.1” TFT Color LCD Module or 12.1” DSTN Color LCD Module:

800 x 600 in 64K colors

External CRT Capabilit

640 x 480 in 16M colors

800 x 600 in 16M colors

1024 x 768 in 64K colors

LCD/CRT Displa

32-bit PCI Bus

LCD/CRT Auto-Sense Video RAM 2 MB embedded in VGA Controller PCMCIA Slots Two Type II slots or one Type III slot

PCMCIA Socket compatible with CARD BUS standard

ZV Support Pointing Device ALPS Glide Pad

PS/2 Interface

:

Simultaneousl

Keyboard Keyboard Layout:

US La

European La

Support Extra Windows 95 Hot Ke

Inverted T Compatible Direction Ke

Overlapped/Embedded Function and Numeric Keypad

Internal and External Keyboard Simultaneous Function Hot Ke

Operation

I/O Port 25-pin Parallel Port (W / EPP, ECP) (LPT1)

Fn + F2 = Text Hi

Fn + F3 = LCD > CRT > LCD/CRT Simul.

Fn + F5 = LCD Backli

Fn + F6 = PC Speaker L/M/H/Mute

Fn + F7 = PMU Level

Fn + F12 = Scroll Lock

Fn + Left Ctrl = Simulate the ri

Fn + Suspend = Save-to-Disk on Demand

Power Switch + Suspend = Force Power Off

9-pin Serial Port (W / FIFO) (COM1)

15-pin VGA Monitor Port

NEC Y-Cable Support (Keyboard & Mouse)

DC-IN Jack

out - 87 Keys

out - 88 Keys

s

hlight

ht On/Off

ht Ctrl ke

FIR Port (COM2 Port)

PortBar Expansion Port

USB Port - 1

General Specifications 2-3

y

g

y

g

Table 2-1 NEC Versa 2700 Series Specifications (cont’d)

Item Specification

PortBar Supports:

Game port

External Ke

External PS/2 Mouse

Serial Port (COM1)

Printer Port (LPT1)

DC-In Jack

USB Ports (2)

Kensington Lock Audio Supports external Stereo Headphone Jack

Supports external Stereo Line-In Jack

Supports external microphone Jack

Built-in Stereo speakers and Woofer

Built-in microphone Status Indicators LED Displays

Power Status LED

Char

Suspend LED

HDD LED

FDD LED

Num Lock - Enable

Caps Lock - Enable

Scroll Lock - Enable

board

e LED

Power Supply

Heat Dissipation Heat Pipe + Fan Dimension 12.0 in. (306mm) (L) x 9.6 in. (241mm) (W) x 1.9 in. 49mm (H)

Optional Items Port Replicator (PortBar)

Adapter

AC

AC 100V to 240V, 47/63Hz, 45W (Max)

Dimensions: 4.1 in. (106mm) (L) x 2.3 in. (60mm) (W) x

1 in. (25.4mm) (H)

Batter

8 cells lon

(Total - 31.68W)

8 cells 18650-size 2600mA/hr Li-Ion Battery, 14.4V

(Total - 37.44W)

Input

A-size 3300mA/hr Ni-MH Battery, 9.6V

2-4 General Specifications

g

y

g

y

g

Table 2-1 NEC Versa 2700 Series Specifications (cont’d)

Item Specification

Key Components CPU: MMX 133 MHz, TCP Package (Intel)

MMX 150 MHz, TCP Packa

MMX 166 MHz, TCP Packa

MMX 200 MHz, TCP Packa

MMX 233 MHz, TCP Packa

LCD: 12.1” Color TFT SVGA - (NEC, NL8060BC31 - 02)

12.1” Color DSTN SVGA - (Panasonic, EDMGR68KDF)

CD-ROM: CD-316E (13.7mm) - (TEAC)

CD-220E (13.7mm) - (TEAC)

Hard Disk Drive: 1.4 GB MK1401MAV (12.7MM) - (Toshiba)

2.1 GB DK225A 21 (12.7mm) - (Hitachi)

Diskette Drive: FD1238T - (NEC)

board: KFREBA004A ALPS

Ke

e (Intel) e (Intel) e (Intel) e (Intel)

Glide Pad: KGDDDH Alps

Batter

2600mA/hr / 14.4V Li-Ion - (San

Core Lo

Super I / O: (NS, PC87338VJG)

VGA Chip: (Neo Ma

Ke

PCMCIA Controller: (TI, PCI1131)

FIR Chip: (HP, HSDL1100-07)

Audio Chip: (Yamaha, 715B)

Audio Amplifier: (TI, TPA0102)

Clock Generator: (IMI, IMICS671)

Micro Controller: (Micro Chip, PIC16C62A + PMU-03)

Flash ROM: (ATMEL, AT29C020)

RS232 Driver: (Maxium, MAX3243)

: 3300mA/hr / 9.6V NiMH - (Sanyo)

o)

ic: (Intel, MT2)

ic, NM2160)

board Controller: (Mitsubishi, M38813M4)

ulator: (NS, LP2952)

Re

PCMCIA Power Switch: (TI, TPS2206)

MOSFET: (NS, 9410)

MOSFET: (NS, 9947)

SYSTEM BOARD SPECIFICATIONS

y

g

y

The following table lists system board specifications.

Table 2-2 System Board Specifications

Item Specification

Cr

Clock

stal 8 MHz SMD Type x 1 stal 14.318 MHz SMD Type x 1

Cr

stal 32.768 MHz SMD Type x 1

Cr

stal 4 MHz SMD Type x 1

Cr

stal 4.19 MHz SMD Type x 1

Cr

Clock Generator (ICWORKS 48569-02, 48 pin)

Buffer included in Clock Generator

General Specifications 2-5

ROM

System Chipset 430 TX (Intel)

Super I/O Keyboard Controller Micro Controller RTC Battery Audio Amplifier (TI TPA0102) DRAM 144-pin 2 Slot DIMM x 2 VGA 2 MB Video DRAM (NeoMagic 2160)

PCMCIA (TI 1131)

L2 Cache 32 K x 32 SRAM TQFP (3.3V/6ns) x 2

Flash ROM for BIOS

256 K x 8, 120 ns

32-pin PLCC Package

320-pin BGA (MTXC)

320-pin BGA (P11X4)

100-pin TQFP (NS87338)

64-pin QFP (Mitsubishi 38813-M4)

28-pin SOIC (PIC16C62A)

60mA, 3.0V NiMH Battery (VARTA)

100-pin TQFP (Yamaha YMF715B-S)

(TI TPS2206)

TAG RAM SOP 32 K x 8 NEC Micro Controller 80 PIN

e Controller

Char

Batter

(NEC D75517G-416) HP IR Module 4 MB Transfer

Gas Gauge Controller

2-6 General Specifications

y

g

Table 2-2 System Board Specifications (cont'd)

Item Specification

Internal Connectors To LCD Panel: CN52, 40 pin (HRS)

To LED Board: CN51, 10 pin (Molex)

To LCD- LED Board: CN53, 11 pin (Molex)

To HDD: CN60, 50 pin (Molex)

To CD-ROM: CN57, 50 pin (Molex)

To RTC Batter

To I/O Board: CN70, 120 pin (AMP)

To LCD Panel: CN52, 40 pin (HRS)

To LED Board: CN51, 10 pin (Molex)

To LCD- LED Board: CN53, 11 pin (Molex)

To HDD: CN60, 50 pin (Molex)

To CD-ROM: CN57, 50 pin (Molex)

To RTC Batter

To I/O Board: CN70, 120 pin (AMP)

To PCMCIA Socket: CN71, 156 pin (HRS)

To FAX/MODEM Board: CN66, 80 pin (Molex)

To CPU Board: CN54, 240 pin (HRS)

To Glide Pad: CN55, 6 pin (ELCO)

To Internal Ke

To Woofer: CN64, 2 pin (Molex)

To Internal Microphone: CN62, 2 pin (Molex)

To Internal Speaker: CN59, 4 pin (Molex)

To MODEM Jack: CN58, 2 pin (Molex)

To FDD: CN63, 26 pin (ELCO)

: CN65, 2 pin (Molex)

board: CN56, 21 pin (ELCO)

External Connector To CRT: CN68, 15 pin (Suyin)

To USB: CN72, 4 pin (Ber

To PortBar: CN69, 80 pin ((Ber

To Headphone Jack: CN78, 5 pin (Hosiden)

To Line-In Jack: CN75, 5 pin (Hosiden)

To External Microphone Jack: CN77, 5 pin (Hosiden)

To Fax/Modem Jack: CN73, 6 pin (Molex)

)

DC CONVERTER BOARD SPECIFICATIONS

g

y

The following table lists the DC converter board specifications.

Table 2-3 DC Converter Board Specifications

Item Specification

Structure PUD76: DC/DC Buck Converter 5V/3.3V

FM-04: DC/DC Boost Converter CC04: Constant Current Circuit LTC1435: DC/DC Buck Converter Vcore & Vio MAX3243: Transceivers RS-232

Signal Standard Main Battery: NiMH/Li-Ion

AC Adapter: ADP52 Bridge Battery: 6 Cell NiMH

General Specifications 2-7

Characteristics

PUD76: DC/DC Converter

Input Rated Volta Li-Ion DC 14.4V Adapter ADP52 DC 19V Output Rated Current: 3VDDS 5VDDS PEAK 3.7A 4.5A MAX 3.5A 3.2A TYP 1.75A 1.3A MIN 0.3A 0.5A MAX 100mA 100mA TYP 6mA 6mA → Suspend MIN 1mA 1mA

e 3.3V 5.0V

Volta

ulation -2.5%+4.0% -2.5%+4.0%

Re Ripple 80mV 80mV Ripple Noise 150mV 150mV Protection Circuit Short Circuit → Reset b Over Current → Reset b

Input - Output Interface:

CN1 1. DC-In 2. DC-In DC-In 4. 5VON1 NC 6. FULPDN0 (Suspend) GND 8. GND GND 10. GND CN2 1. 5VDDS 2. 5VDDS VAR5 4. GND

5. GND 6. GND GND 8. VAR3

9. 3VDDS 10. 3VDDS

e: Battery NiMH DC 9.6V

→

pwr on

2-8 General Specifications

g

y

g

y

g

Table 2-3 DC Converter Board Specifications (cont'd)

Item Specification

FM-04: DC/DC Converter (PC Cards)

Input Rated Volta Output Rated Volta Ripple: 200mVp-p Noise: 360mVp-p Protection: Short Circuit → Reset b Input - Output Interface: CN1 1. GND 2. GND Output 4. Output capacitor terminal

5. Input 6. On/Off

CC04: Constant Current Converter for Charge

Input Rated Volta

e Voltage: 7.0V ~ 20.0V

Char

stem Current: 0.0A ~ 2.4A

S

e Current: 0.0A ~ 1.7A

Char Ripple: 350mVp-p Noise: 500mVp-p Input - Output Interface: N.C 2. ADP In

3. N.C 4. GND

5. GND 6. CHG Out

7. N.C 8. ADP Out

LTC1435 : DC/DC Converter

Input Rated Volta Li-Ion DC 14.4V Adapter ADP52 DC 19V Output Rated Current: Vio Vcore PEAK 400mA 4.0A MAX 300mA 3.2A TYP 100mA 2.0A MIN 10mA 100mA

ulation ±5% ±5%

Re Ripple 80mV 80mV Ripple Noise 150mV 150mV

e: DC 5V±10%

e : 12V ± 5%

pwr on

e: AC Adapter DC 18.5V ~ 20.0V

e : Battery NiMH DC 9.6V

MAX3243 : Transceiver

RS-232 Serial Port

Sub-Battery NiMH : VARTA 6 Cell

LED INDICATOR BOARD SPECIFICATIONS

The NEC Versa 2700 uses the following LEDs.



HDD LED x 1 FDD LED x 1



Num Lock LED x 1



Cap Lock LED x 1



Scroll Lock LED x 1



Power Switch x 1



Suspend Button x 1

The following table lists LED indicator board specifications.

General Specifications 2-9

Table 2-4 LED Indicator Board Specifications

Item Specification

External Connector To Mother Board : CN101, 10 pin (Molex)

To Cover Switch : CN102, 2 pin (Molex)

I/O BOARD SPECIFICATIONS

The following table lists I/O board specifications.

Table 2-5 I/O Board Specifications

Item Specification

CPU Core Voltage: 16 pin, SOP (LTC1435) +5V Voltage: NEC Module Board +3V Voltage: NEC Module Board +12V Voltage: NEC Module Board

Internal Connector To Mother Board: CN6, 100 pin (AMP) External Connector To COM Port: CN1, 9 pin (Suyin)

To LTP Port: CN3, 25 pin (Suyin) To Keyboard Connector: CN4, 6 Pin (Eoxcon) To Adapter: CN5, 3 pin (HRS) To Battery pack: CN7, 8 pin (AMP)

2-10 General Specifications

g

y

g

LCD INVERTER BOARD SPECIFICATIONS

The following table lists the LCD inverter board specifications.

Table 2-6 LCD Inverter Board Specifications

Item Specification

Ratings Input Voltage: 8V to 20V DC

Tube Current: 2 to 5 mA rms

VBL-adj: 0 to 4.7V DC

Working Frequency: 50 to 58 KHz Detection No-load OVP clamp: No Connection to LCD

Constant Current Output: Output Short Connector CN1 6 pin Molex (53261-0610)

1. V+ (8.0V to 20.0V)

Environment Specification

2. V+ (8.0V to 20.0V)

3. On/Off (H - On, L - Off)

4. VBL - adj (0.0V to 4.7V)

5. GND

6. GND

CN2 2-pin JST SM02(8.0)H-BHS

1. HV (Hi

2. Return

Temperature

Operation : 0° to 45° C

Stora

Humidit

Operation : 20%RH to 80%RH

Stora

Altitude

Operation : 10,000 ft

Stora

e : -20° to 60° C

e : 10%RH to 90%RH

e : 15,000 ft

h Voltage)

Burn-In

Loading : LCD Module or Dummy Load

Input : 19V (Max/Adapter In)

General Specifications 2-11

LED STATUS INDICATORS

The following table lists NEC Versa 2700 Series LEDs. For example, the Hard Drive Access LED lights to indicate the hard drive is in use and being accessed.

Table 2-7 Status LED Descriptions

Item LED

Hard Drive Access

Diskette Drive Access

Caps Lock

Scroll Lock

Num Lock

DISKETTE DRIVE SPECIFICATIONS

The following table lists the standard diskette drive specifications.

Table 2-8 Diskette Drive Specifications

Item Specification

Module 3.5” Module Mode 3 Mode FDD (1.44 MB/ 720 KB) Unit Size 4.29 in. (L) x 3.74 in. (W) x 0.50 in (H) (110mm x 96mm x 12.7mm )

2-12 General Specifications

HDD UNIT SPECIFICATIONS

The following table lists the standard hard drive specifications.

Table 2-9 Hard Disk Drive Specifications

Item Specification

Module 2.5” Removable HDD Module Capacity 1.4 GB or 2.1 GB Interface Enhanced IDE Interface Unit Size 3.90 in. (L) x 2.73 in. (W) x 0.50 in. (H)

(100mm x 70mm x 12.7mm )

CD-ROM SPECIFICATIONS

The following table lists the standard CD-ROM reader specifications.

Table 2-10 CD-ROM Reader Specifications

Item Specification

16X

Model Number (TEAC)

Mode IDE Interface IDE Interface Data Transfer

(Sustained) Data Transfer (Burst) 16.7 MB/sec 16.7 MB/sec Unit Size 5.48 in. (L) x 5.09 in. (W) x

CD-316E CD-220E

2,400 KB/sec (Max) 3,000 KB/sec (Max)

0.53 in. (H) (140.5mm x

130.5mm x 13.7mm )

Specification 20X

5.07 in (L) x 4.99 (W) x

0.50 (H) (130mm x 128mm x

12.7mm)

NIMH BATTERY PACK SPECIFICATIONS

The following table lists the standard battery specifications.

Table 2-11 Battery Specifications

Item Specification

NiMH

Specification Li-Ion

Capacity 3300 mA x 8 cells 2600 mA x 8 cells Cell Type Long A 18650 Voltage 9.6V 14.4V Connector 10-Pin 10-pin

General Specifications 2-13

DC/DC CONVERTER AND BATTERY CHARGER SPECIFICATIONS

The following table lists DC/DC converter and battery charger specifications.

Table 2-12 DC/DC Converter and Battery Charger Specifications

Item Specification

Input Voltage 6V -> 19V Output Voltage 5V, 3.3V Output Current 0.1A, 2.5A Output Ripple

Voltage Protection Short Circuit, Over Current Efficiency 80% Min. (Typ.) PCB 1.2mm/6 Layers

150mV, 100mV

BATTERY CHARGER SPECIFICATIONS

The following table lists battery charger specifications.

Table 2-13 Battery Charger Specifications

Item Specification

Input Voltage 20V (Max.) Support Battery NiMH Battery (12V) or Li-Ion Battery (12V) Protection Max. Temp., Max. Timer Charge Method

Max. Temperature

Delta T/Delta t: 1

o

53

C ~ 60oC

o

C (min.)

Timer Setting 360 Min. Charge Time Machine On: 4 hours

Machine Off: 2 hours Charge IC BQ2005 Connector To M/B:

10 Pin & 18 Pin, Male, Straight, DIP/SMT

2-14 General Specifications

KEYBOARD SPECIFICATIONS

The following table lists keyboard specifications.

Table 2-14 Keyboard Specifications

Item Specification

Key Switch Type Membrane Key Stroke Operating Force Key Pitch 19.05mm

3.0 ± 0.5mm

50 ± 20GF

AC/DC ADAPTER SPECIFICATIONS

The following table lists AC/DC adapter specifications.

Table 2-15 AC/DC Adapter Specifications

Item Specification

Input Voltage AC 90V -> 265V, 50 -> 63Hz Ripple Noise 100mvp-P Output Voltage 20V Max. Protection Short Circuit UVP, OVP AC Cord Safety Approval, FCC Shielding AC cord DC Output Cable 2-pin, 100cm long with coil at system end Indicator AC Power On Unit Size 4.68 in. (L) x 2.42 in. (W) x 1.40 in. (H)

120mm x 62mm x 36mm

LCD/LED BOARD SPECIFICATIONS

The NEC Versa 2700 features the following LCD/LED items.



Charge LED x 2 Power LED x 2



Suspend LED x 2



Contrast VR x 1



Brightness VR x 1



The following table lists LCD/LED Board specifications.

Table 2-16 LCD/LED Board Specifications

Item Specification

General Specifications 2-15

External Connector To Mother Board: CN2, 11 pin (Molex)

To Inverter: CN1, 6 pin (Molex)

2-16 General Specifications

g

y

BIOS SPECIFICATIONS

The following table lists BIOS specifications.

Table 2-17 BIOS Specifications

Item Specification

BIOS Feature

CPU Auto detects the CPU type and speed DRAM Auto sizing and detection Cache

Hard Disk

Multi Boot Allows user to select boot from FDD, HDD, or CD-ROM Plug and Play Supports PnP Run Time Service and conflict-free allocation of resource

• Boot Block/Crisis Rescue

•

APM 1.2 Compliance

•

Support PCI 2.1 Specifications

•

Supports Win95, WFWG, WinNT, Win3.11, and DOS 6.2x

•

Level 2 Sync/Async SRAM auto sizing and detection

•

Supports Pannin supported.

•

Enhanced IDE Specifications

•

Supports auto detection

•

Supports LBA mode for larger capacity HDD

•

Supports 32-bit PIO transfer

•

Supports Multi-sector transfer

•

Supports ultra DMA

•

Supports Fast PIO mode 1 - 4 transfer

during POST

while LCD display resolution is greater than

Intelligent Battery Supports BIOS interface to pass battery information from the PMU

Controller (PMU-03 & PIC16C62) to the application

Keyboard Controller

PCMCIA Compliant with PCMCIA 2.1 Specification CD-ROM Supports boot from CD-ROM PortBar I/O port replicator duplicates the following ports:

Supports Fn hot keys, two Win95 hot keys, built-in Glide Pad and external PS/2 mouse/keyboard

CRT Port Printer Prot COM1 Port MIDI/Game Port PS/2 Mouse & Standard Ke DC-In Jack

board Port

Table 2-17 BIOS Specifications (cont'd)

g

y

g

y

g

y

g

y

Item Specification

General Specifications 2-17

Power Management Support

The power management is compliant with APM 1.2 specifications and supports the followin

On Mode Doze Mode — Transparent to the user Standb Suspend to RAM (STR) Mode Suspend To Disk (STD) Mode Soft-Off Mode (Soff) Mechanical Off Mode (Moff) — Transparent to BIOS

Mode — Also known as the Power On Suspend Mode

power states:

POWER MANAGEMENT FEATURES (MODE DEFINITION)

The following table lists power management specifications.

Table 2-18 Power Management Modes

Mode Mode Definition

Full-On The system state where no devices are power managed and the

system can respond to applications with maximum performance. Doze The CPU clock is slowed down and all other devices are full-on.

Standby (POS)

A suspend state where all system board components are still

powered-on except for the s

and CPU buses are driven to the inactive idle state. The s

memor

raphics frame buffer is powered and refreshed by the graphic chip. The s mode to support refresh of these memor enabled “resume event” can brin suspend (POS) state. The PIIX4 also provides a resume timer that allows the system to resume after a programmed time has elapsed.

is powered and refreshed by the memory bridge, and the

stem provides a 32 KHz clock (SUSCLK) in this Suspend

stem clock generator device. The PCI

subsystems. Only an

the system out of the powered-on

stem

Suspend To RAM (STR)

Suspend to Disk (STD)

A suspend state where all system board components are powered off. The CPU/2 and PCI busses are powered off. All devices connected to the CPU/L2 and PCI buses must either be powered-off or isolate their bus interfaces. The s refreshed b clock (SUSCLK) in this suspend mode to support refresh of these memor the platform out of the suspend to RAM (STR) state.

A suspend state where the context of the entire system is saved to disk, all s are stopped. An RTC, can bring the platform out of the suspend to disk (STD) state.

the graphics chip. The system provides a 32 KHz

subsystems. Only an enabled “resume event” can brin

stem board components are powered-off, and all clocks

enabled “resume event”, such as PowerBTN or

stem memory is powered and

2-18 General Specifications

y

g

Table 2-18 Power Management Modes (cont'd)

Mode Mode Definition

Soft Off: (SOFF)

Mechanical Off (MOFF)

This is the same as suspend to disk except the context of memor is not saved. The system resumes from a Soft Off as if a hard reset had occurred.

All power except the RTC was removed from the system. (This mode is transparent to BIOS.)

Table 2-19 Power Status of Local Devices

Component Full-On Doze POS STR STD/Soff

CPU On Stop

Grant DRAM On On Slow Refresh Slow Refresh Power Off HDD On On Low Power Power Off Power Off FDD On On On Power Off Power Off M#8813 (KBC) On On On Low Power Power Off PIC16C62 (µP) VGA / VRAM On On Low Power Low Power Power Off TI 1131 (PCMCIA) On On Low Power Low Power Power Off

On On On Low Power Low Power

Stop Clock Power Off Power Off

Sound On On Low Power Power Off Power Off LCD Panel

Backlight IR Module On On Low Power Power Off Power Off Super I/O Chip On On Low Power Power Off Power Off Wake-up Events — IRQ0~15 IRQ1~15

On On Power Off Power Off Power Off

Ring In

Suspend Button

Indicator

Rin RTC Alarm

Power Button

Indicator

Rin RTC Alarm

General Specifications 2-19

POWER MANAGEMENT FEATURES (MODE TRANSITION)

The following table lists power management transition modes.

Table 2-20 Mode Definitions

Power State/ Control Pin

Full-On 1 1 1 1 1 1 Doze 1 1 1 1 1 1 Standby 0 0 0 1 1 1 STR 0 0 0 0 1 1 STD/SOFF 0 0 0 0 0 0 Mechanical Off 0 0 0 0 0 0

SUB_STAT1# SUB_STAT2# SUSA#

SUSB#

SUSC#

HOT KEY DEFINITION

The following table lists hot key definitions.

Table 2-21 Hot Keys

Function Key Content

Fn + F2 Toggle text highlight (in DOS)

PWRON

Fn + F3 Toggle Display (CRT/LCD/Simul) Fn + F4 Enter Standby Mode Fn + F5 LCD Panel Backlight Standard/Full Fn + F6 System Speaker On/Off Fn + F7 P/M Level (Toggle between Highest Performance, Longest

Battery, Custom, and Off Power Management Level) Fn + F12 Scroll Lock Fn + LeftCtrl Simulate right Ctrl Key Fn + Z Windows key for Windows 95 Fn + X Application key for Windows 95

2-20 General Specifications

HOT KEYS SUPPORTED BY EXTERNAL KEYBOARD DEFINITION

The following table lists external hot key definitions.

Table 2-22 External Hot Keys

Function Key Content

Fn + F2 Toggle Text Highlight (in DOS) Fn + F3 Toggle Display (CRT/LCD/Simul) Fn + F4 Enter Standby Mode Fn + F5 LCD Panel Backlight Standard/Full Fn + F6 System Speaker On/Off Fn + F7 P/M Level (Toggle between Highest Performance, Longest

Battery, Custom, and Off Power Management Level) Fn + Suspend Save-to-Disk on Demand Power Switch + Suspend Force Power Off

ENVIRONMENTAL SPECIFICATIONS

The following table lists appropriate operating temperatures.

Table 2-23 Environmental Specifications

Item Specification

Operating Mode Non-Operating

o

5

C ~ 35oC (80%)

o

-20

C ~ 60oC (90%)

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 Specification

Operating Mode Direction of Movement: X, Y, Z Axis

Vibration Level: 5 ~ 500 ~ 5 Hz, 0.5 Gs Acceleration Duration Time: 60 min. for each axis

Non-Operating Direction of Movement: X, Y, Z Axis

Vibration Level: 5 ~ 500 ~ 5 Hz 2 Gs Acceleration Duration Time: 60 min. for each axis

SHOCK SPECIFICATIONS

The following table lists system shock specifications.

General Specifications 2-21

Table 2-26 Shock Specifications

Item Specification

Operating Mode Impact Accelerator: 1g/10g Based on Half Sine-Wave Shock

Pulses of 11 Msec Number of Shock: 3 Shocks for each of the 6 faces Direction of movement: 6 Faces

Non-Operating Mode Impact Accelerator: 10g, 20g, 30g, 40g, 50g Based on Half Sine-

Wave Shock Pulses of 11Msec Number of Shock: 3 Shocks for each of the 6 faces Direction of Movement: 6 Faces

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, 12.5, 15 kV Air Discharge HCP VCP

±2, 4, 15 kV

±2, 4 kV

Section 3

Hardware Functional Overview

The NEC Versa 2700 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 – implemented on the I/O board



keyboard subsystem – implemented on part of the system board and keyboard assembly



PCMCIA controller and sockets – implemented on the system board



pointing device subsystem – implemented on the I/O board and keyboard assemb ly

hard disk subsystem – implemented on the system board and the hard drive



assembly



diskette drive disk subsystem – implemented on the system board and the diskette drive



CD-ROM subsystem – implemented on the system board and the CD-ROM reader



power subsystem – implemented on the power supply board, inverter board, battery packs, and AC adapter.

A simplified block diagram of the notebook is shown on the next page.

3-2 Hardware Functional Overview

FUNCTIONAL BLOCK DIAGRAM

The following figure shows the NEC Versa 2700 Series functional diagram.

CPU

Pentium MMX

P55C

Tillamook (TCP)

133/150/166/ 200/233 MHz

Bank 1

so-DIMM

16/32/64 MB

CRT

LCD

PS/2 Mouse

Glide Pad

Internal Kb

External Kb

L2

Cache

256 KB

VGA

Neo Magic

NM2093

USB

Serial

FDD

Keyboard Controller

M38813/M4

System PCB

430TX MTXC

324BGA

Super I/O

NS87338VJG

Bank 2

so-DIMM

16/32/64 MB

PCMCIA

TI

1131

HDD

CD-ROM

Flash ROM

3.3V, 32PLCC

Battery

Printer

Audio PCB

Yamaha

715B

Slot 0

PCMCIA

Slot 1

PCMCIA

Headphones

Microphone

Line-In

Volume Control

Clock

Generator

Figure 3-1 Functional Block Diagram

Hardware Functional Overview 3-3

SYSTEM BIOS

The primary function of the system BIOS (Basic Input-Output System) is to provide a series of software interrupts, functions, and sub-functions that control operations on certain devices, such as the hard disk drive, the diskette drive, and the video subsystem.

The NEC Versa 2700 Series uses the AMIBIOS. The BIOS Setup program is an easy-touse 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.

System Processor

The system processor function for the notebook is implemented on the system board using an Intel MMX, P55C-133/150/166/200 or P55CLM-233/266 MHz processor chips. These processor operate in conjunction with the RAM and ROM memory plus other system con-

e.g

trol logic ( tions).

.

Intel 430TX) to process software instructions (BIOS, Windows, applica-

The P55C microprocessor is a 2.8V desktop/2.5V mobile (the P55CLM is 1.8V) (3.3V I/O) version of the Pentium processor (75-200). It is functionally similar to the Pentium processor (75-200) with the following differences: Voltage supplies, maximum bus and core frequency, and performance. The P55C/P55CLM is socket compatible with the Pentium processor (75-200) making it possible to design a flexible motherboard that supports both the Pentium processor (75-200) and the P55C/P55CLM processor. The P55C/P55CLM is manufactured on an advanced CMOS process, which enables the P55C with a reduced core voltage supply to run at up to 200 MHz core frequency (the P55CLM can run at up to 266 MHz core frequency.

The P55C/P55CLM, like the Pentium processor (75-200) has built-in arbitration and cache consistency features for Dual-Processing (DP) which enable a “glueless” dual P55C system design. The P55C/P55CLM can be configured in both modes, DP or uniprocessing.

The P55C/P55CLM has the complete Pentium processor (75-200) feature set, plus the following new features:



16 KB 4-way set-associative code cache and 16 KB 4-way data cache, each with improved fully associative TLBs.



Pool of 4 write buffers used by both pipes.



New Fetch pipeline stage between Prefetch and Instruction Decode with 4-deep instruction FIFO.



Enhanced branch prediction algorithum.

3-4 Hardware Functional Overview

Up to 233 Mhz/266 MHz core frequency operation for both desktop and mobile



systems. Supports the Intel 430 chipset family. Does not support Intel 82497/82492 or



82498/82493 cache chipsets.

SYSTEM LOGIC CONTROLLER

The System Logic Controller function for the notebook is implemented on the system board using Intel 430TX PCI Chipset. The 430TX PCIset consists of the TX System Controller (MTXC) and the PCI ISA IDE Xcelerator (PIIX4). The PCIset forms a Host-to-PCI bridge and provides the second level cache control and a full function 64-bit data path to main memory. The MTXC integrates the cache and main memory DRAM control functions and provides bus control to transfers between the CPU, cache, main memory, and the PCI Bus.

The second level (L2) cache controller supports a write-back cache policy for cache sizes of 256 Kbytes and 512 Kbytes. Cacheless designs are also supported. The cache memory can be implemented with pipeline burst SRAMs. An external Tag RAM is used for the address tag and an internal Tag RAM for the cache line status bits.

For the MTXC DRAM controller, six rows are supported for up to 256 Mbytes of main memory. The MTXC PCIset is highly integrated by including the Data Path into the same BGA chip. Using the snoop ahead feature, the MTXC allows PCI masters to achieve full PCI bandwidth. For increased system performance, the MTXC integrates posted write and read prefetch buffers. The Intel 430TX PCIset integrates many Power Management features that will enable the system to save power whenever the system resources become idle.

Features Summary:



Supports the Pentium® processor family host bus at 66 MHz at 3.3V and 2.5V.



PCI 2.1 compliant



Integrated data path



Integrated DRAM controller

 4 MB to 256 MB main memory  64 Mbit DRAM/SDRAM technology support  FPM (Fast Page Mode), EDO and SDRAM DRAM support  6 RAS lines available  Integrated Programmable-Strength for DRAM interface  CAS-Before-RAS Refresh, extended refresh and self refresh for EDO  CAS-Before-RAS and Self refresh for SDRAM

Hardware Functional Overview 3-5

Integrated L2 Cache Controller



 64MB DRAM cacheability  Direct Mapped Organization - Write Back Only  Supports 256K and 512K Pipelined Burst SRAM and DRAM cache  Cache Hit Read/Write cycle Timings at 3-1-1-1  Back-to-Back Read/Write Cycles at 3-1-1-1-1-1-1-1  64K x 32 SRAM also supported

Fully Synchronous, Minimum Latency 30/33 MHz PCI bus interface



 Five PCI Bus Masters (including PIIX4)  10 DWord PCI-to-DRAM read prefetch buffer  18 Dword PCI-DRAM post buffer  Multi-Transaction Timer to support multiple short PCI transactions

Power Management Features



 PCI CLKRUN# support  Dynamic Stop Clock support  Suspend to RAM (STR)  Suspend to Disk (STD)  Power On Suspend (POS)  Internal Clock control  SDRAM and EDO self refresh during suspend  ACPI Support  Compatible SMRAM (C-SMRAM) and Extended SMRAM (E_SMRAM)  SMM Write-Back cacheable in E_SMRAM mode up to 1 MB  3.3/5V DRAM, 3.3/5V PCI, 3.3/5V Tag, and 3.3/2.5V SRAM support



Test Features  NAND tree support for all pins



Supports the Universal Serial Bus (USB)

3-6 Hardware Functional Overview

324-pin MBGA 430TX PCIset Xcelerated Controller (MTXC) with integrated



Data Paths

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 Intel 430TX PCIset.

DRAM Memory

The NEC Versa 2700 notebooks provides two memory slots for upgrading the DRAM memory to 32 MB, 48 MB, 64 MB, 80 MB, and 128 MB using standard JEDEC or EDO small-outline DIMM (SO-DIMM) memory modules.

Refer to “System Upgrades” in Chapter 1 to learn more about upgrading system memory.

ROM Memory

The NEC Versa 2700 Series notebooks contains both the main system BIOS and the VGA BIOS with Shadow BIOS capability.

I/O SUBSYSTEM

The PC87338VLJ/PC87338VJG provides the most commonly used ISA, EISA, and MicroChannel® peripherals in a single chip. It includes a Floppy Disk Controller (FDC), two full function UARTs, Universal Infrared support (UIR) (HP-SIR, Sharp-IR, TVRemote, and Infrared Data Association (IrDA)), a full IEEE 1284 parallel port, two general purpose chip select signals that enable game port control, and a configuration register set. In addition, support for power management and for mixed 3.3V and 5V operation makes this chip particularly suitable for notebook and sub-notebook applications.

The PC87338 provides full Plug and Play support as specified by Microsoft®. Feature’s summary of the NC87336VLJ:



A special Plug and Play module includes:

 Flexible IRQs, DMAs and base addresses  General Interrupt Requests (IRQs) that can be multiplexed to the ten sup-

ported IRQs



A new, high performance, on-chip Floppy Disk Controller (FDC) provides:  Software compatibility with the PC8477, which contains a superset of the

floppy disk controller functions in the µDP8473, the NECµPD765A and the N82077

 A modifiable 13-bit address

Hardware Functional Overview 3-7

 Ten IRQ channel options  Four 8-bit DMA channel option  16-Byte FIFO  Burst and non-burst modes  Low-power CMOS with enhanced power-down mode  A new, high-performance, on-chip, digital data seperator that does not require

any external filter components

 Support for standard 5.25” and 3.5” diskette drives  Automatic media sense support  Perpendicular recording drive support  Three mode Diskette Drive (FDD) support  Full support for IBM’s Tape Drive Register (TDR) implementation  Support for new fast tape drives (2 Mbps) and standard tape drives (1 Mbps,

500 Kbps, and 250 Kbps)



Two UARTs provide:

 Software compatibility with the 16550A and the 16450  A modifiable 13-bit address  Ten IRQ channel options  MIDI Baud rate support  Four 8-bit DMA channel options on UART2  Shadow register support for UART write-only bits



A slow infrared mode Universal Infrared (UIR) interface on UART2 supports the following:

 Data rates of up to 115.2 Kbps (SIR)  A data rate of 1.152 Mbps (MIR)  A data rate of 4.0 Mbps (FIR)  Selectable internal or external modulation/demodulation (Sharp-IR)



A bi-directional parallel port that includes:  A modifiable 13-bit address

3-8 Hardware Functional Overview

 Ten IRQ channel options  Four 8-bit DMA channel options  An Enhanced Parallel Port (EPP) compatible with version EPP 1.9

(IEEE1284 compliant), that also supports version EPP 1.7 of the Xircom specification

 An Extended Capabilities Port (ECP) that is IEEE 1284 compliant, including

level 2

 Bi-directional data transfer under either software or hardware control  Compatibility with ISA, EISA, and MicroChannel parallel ports  Multiplexing of additional external FDC signals on parallel port pins that en-

ables use of an external Floppy Disk Drive (FDD)

 A protection circuit that prevents damage to the parallel port when an external

printer powers up or operates at high voltages

 14 mA output drivers



Two general purpose pins for two programmable chip select signals can be programmed for game port control



An address decoder that:  Selects all primary and secondary ISA addresses, including COM1-4 and

LPT1-3

 Decodes up to 16 address bits



Clock Source:

 An internal clock multiplier generates all required internal frequencies.  A clock input source 14.318 MHz, 24 MHz, or 48 MHz may be selected



Enhanced power management features:

 Special power-down configuration registers  Enhanced programmable FDC command to trigger power down  Programmable power-down and wake-up modes  Two dedicated pins for FDC power management  Low power-down current consumption (typically less than 10µA).  Reduced pin leakage current

 Low power CMOS technology  The ability to shut off clocks to either the entire chip or only to specific mod-

ules



Mixed voltage support provides:

 Standard 5V operation  Low voltage 3.3V operation  Simultaneous internal 3.3V operation and reception or transmission to devices

that have either a 3.3V or a 5V power supply

100-pin TQFP package - PC87338VJG



100-pin TQFP package - PC87338VLJ



VIDEO SUBSYSTEM

Hardware Functional Overview 3-9

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 NM2160 is a high performance Flat Panel Video Accelerator that integrates in one single chip, 2 Mbytes of high speed DRAM, 24-bit true-color RAMDAC, Graphics/Video Accelerator, Dual Clock Synthesizer, TV-Out support, ZV (Zoomed Video) port, Z-Buffer Data Stripping, PCI Bus Mastering, and a high speed glueless 32-bit PCI 2.1 compliance interface.

By integrating the display buffer DRAM and 128-bit graphics/video accelerator, the NM2160 achieves the leading performance in the smallest footprint available. The NM2160 has sufficient bandwidth to perform full-screen, 30fps video acceleration of MPEG, Indeo, Cinepak, and other video playback CODECs. The bandwidth headroom also allows the NM2160 to deliver the highest quality video playback of any notebook graphics solution, without compromising simultaneous graphics performance.

Feature summary of the NM2160:



128 Bit Graphics Acceleration

 High speed BitBLT Engine  Color Expansion  Accelerated Text Hardware  Clipping  X - Y Coordinates Addressing  Memory Mapped I/O

3-10 Hardware Functional Overview

 Bus Mastering  Z - Buffer data stripping  VGA I/O Relocatable to MMIO Space

Video Acceleration



 Integrated frame buffer for Video and Graphics  16 M Color video in all modes  Color Space Conversion (YUV to RGB)  Arbitrary video scaling up to 8X ratio  Bilinear interpolation and Filtering  Video Overlay capability from on/off screen memory  Chroma Key Support  Independent Brightness Control for Video Window  Supports different color depths between video and graphics  Supports RGB graphics and video in YUV format in one Integrated frame

buffer



Memory Support

 High Speed 2 Mbytes of integrated DRAM  128 bit Memory Interface



Bus Support

 PCI 2.1 compliance Loceal Bus (Zero wait states)  3.3Volts or 5Volts operation



EMI Reduction

 Spread Spectrum Clocking technology for reduced panel EMI



Hardware Cursor and Icon

 Relocatable Hardware Cursor and Icon  64 x 64 Hardware Cursor

Hardware Functional Overview 3-11

 64 x 64 or 128 x 128 Hardware Icon

Green PC Support



 VESA Display Power Management (DPMS)  DAC Power Down modes  Suspend/Standby/Clock management  VGA disable support  PCI Mobile Computing “clockrun” support

Resolution and Color Support



 VGA: TFT, DSTN, CRT @ 85Hz (640 x 480 256, 64K, 16M)  SVGA: TFT, DSTN, CRT @ 85Hz (800 x 600 256, 64K, 16M)  XGA: TFT, DSTN, CRT @ 75Hz (1024 x 768 256, 64K Colors)  Simultaneous CRT/Flat Panel operation  Simultaneous TV/Flat Panel operation



Display Enhancements

 TV Out Support  ZV (Zoomed Video) Port  24 Bit Inegrated RAMDAC with Gamma Correction  36 bit panel support  Hardware expansion for low-resolution display mode compensation to panels  Virtual Screen Panning Support  Integrated Dual Clock Synthesizer  VESA DDC1 and DDC2b

External VGA Capability

The NEC Versa 2700 Series notebooks provide a 15-pin female D-type external VGA connector that can be connected to an external video graphics adapter (VGA) type monitor.

3-12 Hardware Functional Overview

Another feature of the notebook computer is the ability to auto-sense the display output to both LCD and the external CRT monitor. The notebook provides external resolution of 1024 x 768 by 64K colors for the NEC Versa 2700 Series with 2 MB video memory. The NEC Versa 2700 Series can also provide simultaneous display at 800x600 at 64K colors with the standard VGA DSTN LCD.

KEYBOARD SUBSYSTEM

The Keyboard Subsystem of the notebook is implemented on the I/O Board and Keyboard Assembly using the Motorola M 38813M4 keyboard controller chip.

The NEC Versa 2700 Series keyboard is an 85-key, IBM enhanced-type keyboard with standard characters and function keys plus 12 programmable function keys. The notebook also provides an external PS/2 port for supporting an external PS/2 keyboard or standard DIN-type AT-keyboard. See Section 1 for more information.

PCMCIA CONTROLLER AND SOCKETS

The PCMCIA controller is implemented on the system board using TI’s PCI-1131 Interface Controller.

The TI PCI-1131 is a high-performance PCI-to-PCI Card controller that supports two independent PC Card sockets compliant with the 1995 PC Card standard. The PCI-1131 provides a set of features that make it ideal for bridging between PCI and PC Cards in both notebook and desktop computers. The PCI-1131 supports any combination of 16-bit and CardBus PC Card bus-mastering in its two sockets, powered at 3.3V or 5V, as required.

The PCI-1131 is compliant with the PCI local bus specification revision 2.1, and its PCI Interface can act as either a PCI master device or a PCI slave device. The PCI bus mastering is initiated during 16-bit PC Card DMA transfers or CardBus PC Card busmastering cycles.

All card signals are internally buffered to allow hot insertion and removal without external buffering. The PCI-1131 is register compatible with the Intel 82365SL-DF ExCA controller. The PCI-1131 internal datapath logic allows the host to access 8-, 16-, and 32bit cards using full 32-bit PCI cycles for maximum performance. Independent 32-bit write buffers allow fast-posted writes to improve system-bus utilization.

An advanced CMOS process is used to achieve low system-power consumption while operating at PCI clock rates up to 33 MHz. Several low-power modes allow the host power-management system to further reduce power consumption.

Feature summary of the TI PCI-1131:



3.3V Core Logic with Universal PCI Interface Compatible with 3.3V or 5V PCI signaling environments



Supports PCI Local Bus Specification 2.1

Hardware Functional Overview 3-13

Mix-and-Match 3.3-V/5-V PC Cards and 3.3-V CardBus Cards



Supports two PC Card™ or CardBus Slots with Hot Insertion and Removal 1995 PC Card-Standard Compliant



Low-Power Advanced Submicron CMOS technology



Uses Serial Interface to Texas Instruments (TI) TPS2206 Dual Power Switch System interrupts can be programmed as PCI-Style of ISA IRQ-Style interrupts



ISA IRQ interrupts can be serialized onto a Single IRQSER pin



Programmable Output Select for CLCKRUN



Supports Burst transfers to maximize data throughput on the PCI and CardBus



Bus



Multifunction PCI Device with separate configuration spaces for each socket



Five PCI Memory Windows and Two I/O Windows available to each PC Card16 Socket



Two I/O Windows and Two Memory Windows Available to each CardBus Socket

CardBus Memory Windows can be individually selected prefetchable or non-



prefetchable



Exchangeable Card Architecture (ExCA™)-Compatible registers mapped in Memory or I/O space



TI Extension Registers mapped in the PCI Configuration space



Intel 82365SL-DF Register compatible



Supports 16-bit Distributed Direct Memory Access (DMA) on both PC Card sockets



Supports PC/PCI DMA on both PC Card sockets



Supports Zoom Video mode



Supports Ring Indicate



Packaged in 208-pin Thin Plastic Quad Flatpack

3-14 Hardware Functional Overview

HARD DISK SUBSYSTEM

The hard disk subsystem, implemented on the system board and on the associated built-in hard disk drive, provides disk storage for all system software and user files.

The NEC Versa 2700 Series notebook is equipped with a high capacity hard disk drive that provides LBA (Logical Block Addressing) mode support. The I/O subsystem controller, NS PC87338CLJ, provides the IDE controller for the hard disk.

The built-in controller can support any industry standard 2.5-inch IDE hard disk drive. Setting up the hard disk type is done automatically by the CMOS Setup program. Setup autodetects the installed hard disk type settings for optimized performance.

NOTE:

LED is activated. This protects the hard disk drive from any accidental damage or loss of data.

Do not move the notebook when the HDD

DISKETTE DRIVE SUBSYSTEM

The diskette drive subsystem consists of a FDD controller provided by Super I/O PC87338VLG and the built-in diskette disk drive. The diskette disk drive supports standard

3.5-inch; 720 KB and 1.44 MB mini-diskettes.

POINTING DEVICE SUBSYSTEM

The pointing device subsystem consists of the VersaGlide device on the system Palm Rest cover assembly, and a pre-programmed Mitsubishi M38813M4 micro-controller that interfaces the mouse device to the system board. An external PS/2 port also supports the use of an external PS/2 compatible mouse which the system automatically detects during system power up and then disables the internal VersaGlide.

POWER SUBSYSTEM

The Power Subsystem consists of the following major sections:



External AC Power Adapter



Internal Battery Pack



Power Board (on system board)



LCD Inverter Board (in LCD Panel Assembly)



Power Conservation Logic (part of system board)

Hardware Functional Overview 3-15

AC Power Adapter

The computer is equipped with a universal AC power adapter that converts AC voltage (90 to 265VAC, 47 to 63Hz) into DC voltage used to operate the notebook and charge the batteries.

Internal Battery Pack

The NEC Versa 2700 Series notebooks utilizes NiMH (Nickel Metal-Hydride) or Li-Ion (Lithium Ion) batteries that provide DC power for the notebook.

The NiMH battery pack contains eight size A battery cells that provide the system with

9.6V and the Li-Ion battery pack contains eight size A battery cells that provide the system with 14.4V. When installed in the notebook, the battery LED automatically appears and also starts to recharge whenever the AC adapter is connected to the notebook.

Normal charging time for the battery pack is around 2 hours when the computer is turned off while it should take around 4 hours maximum when the computer is running.

Power Board

The power board receives approximately 12VDC from the battery pack and uses this input voltage to generate +12V, +5V, +3.3V, (+3.45V) regulated output voltages to provide power for all internal notebook board assemblies. The output of the +5V regulator also drives the LCD inverter circuit on the LCD inverter board assembly. Refer to Section 2 for more detailed information.

LCD Inverter Board Assembly

The LCD Inverter Board Assembly, located in the LCD Panel Assembly, converts the +5VDC input from the Power Board module of the system board into a high voltage AC output used to light the CCFT (Cold-Cathode Fluorescent Tube).

Section 3

Hardware Functional Overview

The NEC Versa 2700 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 – implemented on the I/O board



keyboard subsystem – implemented on part of the system board and keyboard assembly



PCMCIA controller and sockets – implemented on the system board



pointing device subsystem – implemented on the I/O board and keyboard assemb ly

hard disk subsystem – implemented on the system board and the hard drive



assembly



diskette drive disk subsystem – implemented on the system board and the diskette drive



CD-ROM subsystem – implemented on the system board and the CD-ROM reader



power subsystem – implemented on the power supply board, inverter board, battery packs, and AC adapter.

A simplified block diagram of the notebook is shown on the next page.

3-2 Hardware Functional Overview

FUNCTIONAL BLOCK DIAGRAM

The following figure shows the NEC Versa 2700 Series functional diagram.

CPU

Pentium MMX

P55C

Tillamook (TCP)

133/150/166/ 200/233 MHz

Bank 1

so-DIMM

16/32/64 MB

CRT

LCD

PS/2 Mouse

Glide Pad

Internal Kb

External Kb

L2

Cache

256 KB

VGA

Neo Magic

NM2093

USB

Serial

FDD

Keyboard Controller

M38813/M4

System PCB

430TX MTXC

324BGA

Super I/O

NS87338VJG

Bank 2

so-DIMM

16/32/64 MB

PCMCIA

TI

1131

HDD

CD-ROM

Flash ROM

3.3V, 32PLCC

Battery

Printer

Audio PCB

Yamaha

715B

Slot 0

PCMCIA

Slot 1

PCMCIA

Headphones

Microphone

Line-In

Volume Control

Clock

Generator

Figure 3-1 Functional Block Diagram

Hardware Functional Overview 3-3

SYSTEM BIOS

The primary function of the system BIOS (Basic Input-Output System) is to provide a series of software interrupts, functions, and sub-functions that control operations on certain devices, such as the hard disk drive, the diskette drive, and the video subsystem.

The NEC Versa 2700 Series uses the AMIBIOS. The BIOS Setup program is an easy-touse 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.

System Processor

The system processor function for the notebook is implemented on the system board using an Intel MMX, P55C-133/150/166/200 or P55CLM-233/266 MHz processor chips. These processor operate in conjunction with the RAM and ROM memory plus other system con-

e.g

trol logic ( tions).

.

Intel 430TX) to process software instructions (BIOS, Windows, applica-

The P55C microprocessor is a 2.8V desktop/2.5V mobile (the P55CLM is 1.8V) (3.3V I/O) version of the Pentium processor (75-200). It is functionally similar to the Pentium processor (75-200) with the following differences: Voltage supplies, maximum bus and core frequency, and performance. The P55C/P55CLM is socket compatible with the Pentium processor (75-200) making it possible to design a flexible motherboard that supports both the Pentium processor (75-200) and the P55C/P55CLM processor. The P55C/P55CLM is manufactured on an advanced CMOS process, which enables the P55C with a reduced core voltage supply to run at up to 200 MHz core frequency (the P55CLM can run at up to 266 MHz core frequency.

The P55C/P55CLM, like the Pentium processor (75-200) has built-in arbitration and cache consistency features for Dual-Processing (DP) which enable a “glueless” dual P55C system design. The P55C/P55CLM can be configured in both modes, DP or uniprocessing.

The P55C/P55CLM has the complete Pentium processor (75-200) feature set, plus the following new features:



16 KB 4-way set-associative code cache and 16 KB 4-way data cache, each with improved fully associative TLBs.



Pool of 4 write buffers used by both pipes.



New Fetch pipeline stage between Prefetch and Instruction Decode with 4-deep instruction FIFO.



Enhanced branch prediction algorithum.

3-4 Hardware Functional Overview

Up to 233 Mhz/266 MHz core frequency operation for both desktop and mobile



systems. Supports the Intel 430 chipset family. Does not support Intel 82497/82492 or



82498/82493 cache chipsets.

SYSTEM LOGIC CONTROLLER

The System Logic Controller function for the notebook is implemented on the system board using Intel 430TX PCI Chipset. The 430TX PCIset consists of the TX System Controller (MTXC) and the PCI ISA IDE Xcelerator (PIIX4). The PCIset forms a Host-to-PCI bridge and provides the second level cache control and a full function 64-bit data path to main memory. The MTXC integrates the cache and main memory DRAM control functions and provides bus control to transfers between the CPU, cache, main memory, and the PCI Bus.

The second level (L2) cache controller supports a write-back cache policy for cache sizes of 256 Kbytes and 512 Kbytes. Cacheless designs are also supported. The cache memory can be implemented with pipeline burst SRAMs. An external Tag RAM is used for the address tag and an internal Tag RAM for the cache line status bits.

For the MTXC DRAM controller, six rows are supported for up to 256 Mbytes of main memory. The MTXC PCIset is highly integrated by including the Data Path into the same BGA chip. Using the snoop ahead feature, the MTXC allows PCI masters to achieve full PCI bandwidth. For increased system performance, the MTXC integrates posted write and read prefetch buffers. The Intel 430TX PCIset integrates many Power Management features that will enable the system to save power whenever the system resources become idle.

Features Summary:



Supports the Pentium® processor family host bus at 66 MHz at 3.3V and 2.5V.



PCI 2.1 compliant



Integrated data path



Integrated DRAM controller

 4 MB to 256 MB main memory  64 Mbit DRAM/SDRAM technology support  FPM (Fast Page Mode), EDO and SDRAM DRAM support  6 RAS lines available  Integrated Programmable-Strength for DRAM interface  CAS-Before-RAS Refresh, extended refresh and self refresh for EDO  CAS-Before-RAS and Self refresh for SDRAM

Hardware Functional Overview 3-5

Integrated L2 Cache Controller



 64MB DRAM cacheability  Direct Mapped Organization - Write Back Only  Supports 256K and 512K Pipelined Burst SRAM and DRAM cache  Cache Hit Read/Write cycle Timings at 3-1-1-1  Back-to-Back Read/Write Cycles at 3-1-1-1-1-1-1-1  64K x 32 SRAM also supported

Fully Synchronous, Minimum Latency 30/33 MHz PCI bus interface



 Five PCI Bus Masters (including PIIX4)  10 DWord PCI-to-DRAM read prefetch buffer  18 Dword PCI-DRAM post buffer  Multi-Transaction Timer to support multiple short PCI transactions

Power Management Features



 PCI CLKRUN# support  Dynamic Stop Clock support  Suspend to RAM (STR)  Suspend to Disk (STD)  Power On Suspend (POS)  Internal Clock control  SDRAM and EDO self refresh during suspend  ACPI Support  Compatible SMRAM (C-SMRAM) and Extended SMRAM (E_SMRAM)  SMM Write-Back cacheable in E_SMRAM mode up to 1 MB  3.3/5V DRAM, 3.3/5V PCI, 3.3/5V Tag, and 3.3/2.5V SRAM support



Test Features  NAND tree support for all pins



Supports the Universal Serial Bus (USB)

3-6 Hardware Functional Overview

324-pin MBGA 430TX PCIset Xcelerated Controller (MTXC) with integrated



Data Paths

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 Intel 430TX PCIset.

DRAM Memory

The NEC Versa 2700 notebooks provides two memory slots for upgrading the DRAM memory to 32 MB, 48 MB, 64 MB, 80 MB, and 128 MB using standard JEDEC or EDO small-outline DIMM (SO-DIMM) memory modules.

Refer to “System Upgrades” in Chapter 1 to learn more about upgrading system memory.

ROM Memory

The NEC Versa 2700 Series notebooks contains both the main system BIOS and the VGA BIOS with Shadow BIOS capability.

I/O SUBSYSTEM

The PC87338VLJ/PC87338VJG provides the most commonly used ISA, EISA, and MicroChannel® peripherals in a single chip. It includes a Floppy Disk Controller (FDC), two full function UARTs, Universal Infrared support (UIR) (HP-SIR, Sharp-IR, TVRemote, and Infrared Data Association (IrDA)), a full IEEE 1284 parallel port, two general purpose chip select signals that enable game port control, and a configuration register set. In addition, support for power management and for mixed 3.3V and 5V operation makes this chip particularly suitable for notebook and sub-notebook applications.

The PC87338 provides full Plug and Play support as specified by Microsoft®. Feature’s summary of the NC87336VLJ:



A special Plug and Play module includes:

 Flexible IRQs, DMAs and base addresses  General Interrupt Requests (IRQs) that can be multiplexed to the ten sup-

ported IRQs



A new, high performance, on-chip Floppy Disk Controller (FDC) provides:  Software compatibility with the PC8477, which contains a superset of the

floppy disk controller functions in the µDP8473, the NECµPD765A and the N82077

 A modifiable 13-bit address

Hardware Functional Overview 3-7

 Ten IRQ channel options  Four 8-bit DMA channel option  16-Byte FIFO  Burst and non-burst modes  Low-power CMOS with enhanced power-down mode  A new, high-performance, on-chip, digital data seperator that does not require

any external filter components

 Support for standard 5.25” and 3.5” diskette drives  Automatic media sense support  Perpendicular recording drive support  Three mode Diskette Drive (FDD) support  Full support for IBM’s Tape Drive Register (TDR) implementation  Support for new fast tape drives (2 Mbps) and standard tape drives (1 Mbps,

500 Kbps, and 250 Kbps)



Two UARTs provide:

 Software compatibility with the 16550A and the 16450  A modifiable 13-bit address  Ten IRQ channel options  MIDI Baud rate support  Four 8-bit DMA channel options on UART2  Shadow register support for UART write-only bits



A slow infrared mode Universal Infrared (UIR) interface on UART2 supports the following:

 Data rates of up to 115.2 Kbps (SIR)  A data rate of 1.152 Mbps (MIR)  A data rate of 4.0 Mbps (FIR)  Selectable internal or external modulation/demodulation (Sharp-IR)



A bi-directional parallel port that includes:  A modifiable 13-bit address

3-8 Hardware Functional Overview

 Ten IRQ channel options  Four 8-bit DMA channel options  An Enhanced Parallel Port (EPP) compatible with version EPP 1.9

(IEEE1284 compliant), that also supports version EPP 1.7 of the Xircom specification

 An Extended Capabilities Port (ECP) that is IEEE 1284 compliant, including

level 2

 Bi-directional data transfer under either software or hardware control  Compatibility with ISA, EISA, and MicroChannel parallel ports  Multiplexing of additional external FDC signals on parallel port pins that en-

ables use of an external Floppy Disk Drive (FDD)

 A protection circuit that prevents damage to the parallel port when an external

printer powers up or operates at high voltages

 14 mA output drivers



Two general purpose pins for two programmable chip select signals can be programmed for game port control



An address decoder that:  Selects all primary and secondary ISA addresses, including COM1-4 and

LPT1-3

 Decodes up to 16 address bits



Clock Source:

 An internal clock multiplier generates all required internal frequencies.  A clock input source 14.318 MHz, 24 MHz, or 48 MHz may be selected



Enhanced power management features:

 Special power-down configuration registers  Enhanced programmable FDC command to trigger power down  Programmable power-down and wake-up modes  Two dedicated pins for FDC power management  Low power-down current consumption (typically less than 10µA).  Reduced pin leakage current

 Low power CMOS technology  The ability to shut off clocks to either the entire chip or only to specific mod-

ules



Mixed voltage support provides:

 Standard 5V operation  Low voltage 3.3V operation  Simultaneous internal 3.3V operation and reception or transmission to devices

that have either a 3.3V or a 5V power supply

100-pin TQFP package - PC87338VJG



100-pin TQFP package - PC87338VLJ



VIDEO SUBSYSTEM

Hardware Functional Overview 3-9

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 NM2160 is a high performance Flat Panel Video Accelerator that integrates in one single chip, 2 Mbytes of high speed DRAM, 24-bit true-color RAMDAC, Graphics/Video Accelerator, Dual Clock Synthesizer, TV-Out support, ZV (Zoomed Video) port, Z-Buffer Data Stripping, PCI Bus Mastering, and a high speed glueless 32-bit PCI 2.1 compliance interface.

By integrating the display buffer DRAM and 128-bit graphics/video accelerator, the NM2160 achieves the leading performance in the smallest footprint available. The NM2160 has sufficient bandwidth to perform full-screen, 30fps video acceleration of MPEG, Indeo, Cinepak, and other video playback CODECs. The bandwidth headroom also allows the NM2160 to deliver the highest quality video playback of any notebook graphics solution, without compromising simultaneous graphics performance.

Feature summary of the NM2160:



128 Bit Graphics Acceleration

 High speed BitBLT Engine  Color Expansion  Accelerated Text Hardware  Clipping  X - Y Coordinates Addressing  Memory Mapped I/O

3-10 Hardware Functional Overview

 Bus Mastering  Z - Buffer data stripping  VGA I/O Relocatable to MMIO Space

Video Acceleration



 Integrated frame buffer for Video and Graphics  16 M Color video in all modes  Color Space Conversion (YUV to RGB)  Arbitrary video scaling up to 8X ratio  Bilinear interpolation and Filtering  Video Overlay capability from on/off screen memory  Chroma Key Support  Independent Brightness Control for Video Window  Supports different color depths between video and graphics  Supports RGB graphics and video in YUV format in one Integrated frame

buffer



Memory Support

 High Speed 2 Mbytes of integrated DRAM  128 bit Memory Interface



Bus Support

 PCI 2.1 compliance Loceal Bus (Zero wait states)  3.3Volts or 5Volts operation



EMI Reduction

 Spread Spectrum Clocking technology for reduced panel EMI



Hardware Cursor and Icon

 Relocatable Hardware Cursor and Icon  64 x 64 Hardware Cursor

Hardware Functional Overview 3-11

 64 x 64 or 128 x 128 Hardware Icon

Green PC Support



 VESA Display Power Management (DPMS)  DAC Power Down modes  Suspend/Standby/Clock management  VGA disable support  PCI Mobile Computing “clockrun” support

Resolution and Color Support



 VGA: TFT, DSTN, CRT @ 85Hz (640 x 480 256, 64K, 16M)  SVGA: TFT, DSTN, CRT @ 85Hz (800 x 600 256, 64K, 16M)  XGA: TFT, DSTN, CRT @ 75Hz (1024 x 768 256, 64K Colors)  Simultaneous CRT/Flat Panel operation  Simultaneous TV/Flat Panel operation



Display Enhancements

 TV Out Support  ZV (Zoomed Video) Port  24 Bit Inegrated RAMDAC with Gamma Correction  36 bit panel support  Hardware expansion for low-resolution display mode compensation to panels  Virtual Screen Panning Support  Integrated Dual Clock Synthesizer  VESA DDC1 and DDC2b

External VGA Capability

The NEC Versa 2700 Series notebooks provide a 15-pin female D-type external VGA connector that can be connected to an external video graphics adapter (VGA) type monitor.

3-12 Hardware Functional Overview

Another feature of the notebook computer is the ability to auto-sense the display output to both LCD and the external CRT monitor. The notebook provides external resolution of 1024 x 768 by 64K colors for the NEC Versa 2700 Series with 2 MB video memory. The NEC Versa 2700 Series can also provide simultaneous display at 800x600 at 64K colors with the standard VGA DSTN LCD.

KEYBOARD SUBSYSTEM

The Keyboard Subsystem of the notebook is implemented on the I/O Board and Keyboard Assembly using the Motorola M 38813M4 keyboard controller chip.

The NEC Versa 2700 Series keyboard is an 85-key, IBM enhanced-type keyboard with standard characters and function keys plus 12 programmable function keys. The notebook also provides an external PS/2 port for supporting an external PS/2 keyboard or standard DIN-type AT-keyboard. See Section 1 for more information.

PCMCIA CONTROLLER AND SOCKETS

The PCMCIA controller is implemented on the system board using TI’s PCI-1131 Interface Controller.

The TI PCI-1131 is a high-performance PCI-to-PCI Card controller that supports two independent PC Card sockets compliant with the 1995 PC Card standard. The PCI-1131 provides a set of features that make it ideal for bridging between PCI and PC Cards in both notebook and desktop computers. The PCI-1131 supports any combination of 16-bit and CardBus PC Card bus-mastering in its two sockets, powered at 3.3V or 5V, as required.

The PCI-1131 is compliant with the PCI local bus specification revision 2.1, and its PCI Interface can act as either a PCI master device or a PCI slave device. The PCI bus mastering is initiated during 16-bit PC Card DMA transfers or CardBus PC Card busmastering cycles.

All card signals are internally buffered to allow hot insertion and removal without external buffering. The PCI-1131 is register compatible with the Intel 82365SL-DF ExCA controller. The PCI-1131 internal datapath logic allows the host to access 8-, 16-, and 32bit cards using full 32-bit PCI cycles for maximum performance. Independent 32-bit write buffers allow fast-posted writes to improve system-bus utilization.

An advanced CMOS process is used to achieve low system-power consumption while operating at PCI clock rates up to 33 MHz. Several low-power modes allow the host power-management system to further reduce power consumption.

Feature summary of the TI PCI-1131:



3.3V Core Logic with Universal PCI Interface Compatible with 3.3V or 5V PCI signaling environments



Supports PCI Local Bus Specification 2.1

Hardware Functional Overview 3-13

Mix-and-Match 3.3-V/5-V PC Cards and 3.3-V CardBus Cards



Supports two PC Card™ or CardBus Slots with Hot Insertion and Removal 1995 PC Card-Standard Compliant



Low-Power Advanced Submicron CMOS technology



Uses Serial Interface to Texas Instruments (TI) TPS2206 Dual Power Switch System interrupts can be programmed as PCI-Style of ISA IRQ-Style interrupts



ISA IRQ interrupts can be serialized onto a Single IRQSER pin



Programmable Output Select for CLCKRUN



Supports Burst transfers to maximize data throughput on the PCI and CardBus



Bus



Multifunction PCI Device with separate configuration spaces for each socket



Five PCI Memory Windows and Two I/O Windows available to each PC Card16 Socket



Two I/O Windows and Two Memory Windows Available to each CardBus Socket

CardBus Memory Windows can be individually selected prefetchable or non-



prefetchable



Exchangeable Card Architecture (ExCA™)-Compatible registers mapped in Memory or I/O space



TI Extension Registers mapped in the PCI Configuration space



Intel 82365SL-DF Register compatible



Supports 16-bit Distributed Direct Memory Access (DMA) on both PC Card sockets



Supports PC/PCI DMA on both PC Card sockets



Supports Zoom Video mode



Supports Ring Indicate



Packaged in 208-pin Thin Plastic Quad Flatpack

3-14 Hardware Functional Overview

HARD DISK SUBSYSTEM

The hard disk subsystem, implemented on the system board and on the associated built-in hard disk drive, provides disk storage for all system software and user files.

The NEC Versa 2700 Series notebook is equipped with a high capacity hard disk drive that provides LBA (Logical Block Addressing) mode support. The I/O subsystem controller, NS PC87338CLJ, provides the IDE controller for the hard disk.

The built-in controller can support any industry standard 2.5-inch IDE hard disk drive. Setting up the hard disk type is done automatically by the CMOS Setup program. Setup autodetects the installed hard disk type settings for optimized performance.

NOTE:

LED is activated. This protects the hard disk drive from any accidental damage or loss of data.

Do not move the notebook when the HDD

DISKETTE DRIVE SUBSYSTEM

The diskette drive subsystem consists of a FDD controller provided by Super I/O PC87338VLG and the built-in diskette disk drive. The diskette disk drive supports standard

3.5-inch; 720 KB and 1.44 MB mini-diskettes.

POINTING DEVICE SUBSYSTEM

The pointing device subsystem consists of the VersaGlide device on the system Palm Rest cover assembly, and a pre-programmed Mitsubishi M38813M4 micro-controller that interfaces the mouse device to the system board. An external PS/2 port also supports the use of an external PS/2 compatible mouse which the system automatically detects during system power up and then disables the internal VersaGlide.

POWER SUBSYSTEM

The Power Subsystem consists of the following major sections:



External AC Power Adapter



Internal Battery Pack



Power Board (on system board)



LCD Inverter Board (in LCD Panel Assembly)



Power Conservation Logic (part of system board)

Hardware Functional Overview 3-15

AC Power Adapter

The computer is equipped with a universal AC power adapter that converts AC voltage (90 to 265VAC, 47 to 63Hz) into DC voltage used to operate the notebook and charge the batteries.

Internal Battery Pack

The NEC Versa 2700 Series notebooks utilizes NiMH (Nickel Metal-Hydride) or Li-Ion (Lithium Ion) batteries that provide DC power for the notebook.

The NiMH battery pack contains eight size A battery cells that provide the system with

9.6V and the Li-Ion battery pack contains eight size A battery cells that provide the system with 14.4V. When installed in the notebook, the battery LED automatically appears and also starts to recharge whenever the AC adapter is connected to the notebook.

Normal charging time for the battery pack is around 2 hours when the computer is turned off while it should take around 4 hours maximum when the computer is running.

Power Board

The power board receives approximately 12VDC from the battery pack and uses this input voltage to generate +12V, +5V, +3.3V, (+3.45V) regulated output voltages to provide power for all internal notebook board assemblies. The output of the +5V regulator also drives the LCD inverter circuit on the LCD inverter board assembly. Refer to Section 2 for more detailed information.

LCD Inverter Board Assembly

The LCD Inverter Board Assembly, located in the LCD Panel Assembly, converts the +5VDC input from the Power Board module of the system board into a high voltage AC output used to light the CCFT (Cold-Cathode Fluorescent Tube).

Section 4

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 4-1 NECCSD Service and Information Telephone Numbers

Service Call

To order NECCSD spare parts In the U.S., call 1(800) 632-4525 To order options in the U.S. Local Sales Office To access the NECCSD Electronic Bulletin

Board System (BBS) To download files - provides software drivers

and the latest ROM BIOS NECCSD Customer Service and Technical

Support Center NECCSD Customer Assistance Center for

customer service, extended warranties, and contracts

FaxFlashSM - automated fax service that sends the latest information about NEC products to the fax machine 24 hours a day

1(978) 635-4706

In the U.S., call 1(800) 632-4525

In the U.S., call 1(888) 632-9128

In the U.S. and Canada, call 1(888) 3290088

Outside U.S. 1 (978) 635-6090

TECHNICAL SUPPORT

NECCSD Technical Support Center (TSC) provides an E-mail service for Internet users. Technical questions regarding NEC products can be sent over the Internet system to TSC. The Internet address is as follows:

[email protected]

If it is more convenient, questions may also be faxed to TSC. The fax number is:

(978) 635-4100

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).

4-2 Troubleshooting and Repair

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. TSC replies to all questions received by Internet or fax within one business day.

PRODUCT INFORMATION

NECCSD FaxFlash is a self-help, automated electronic information service for obtaining up-to-date product application notes, installation procedures, troubleshooting tips, data sheets, technical information bulletins, illustrated parts lists, part numbers, and other information about your system.

Using a fax machine, you can obtain information from FaxFlash 24 hours a day, 7 days a week. You simply call the FaxFlash number on your touch-tone telephone and order the information you want by following the voice prompts. FaxFlash will automatically fax the information to you.

If you are new to FaxFlash, you should first order one of the following catalogs. Each catalog lists the available documents and their document numbers. 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 Server Systems technical support information. Catalog 6, NEC Ready Systems technical support information.



Catalog 7, PowerMate Systems technical support information.



Catalog 8, NEC Portable Systems (including Versa Notebooks and MobilePro Handheld Personal Computers) technical support information.

Technical support information includes BBS and FTP file listings, Illustrated Parts Breakdowns (IPB), part numbers, frequently asked questions (FAQ) lists, and other documents specific to each product.

Order information from FaxFlash as follows:

Be sure that your fax machine or fax/modem is on. Have the document number

1.

ready for the document you want, if you already know the number. From your touch-tone telephone, enter 888-329-0088 (U.S. and Canada only).

2.

For international use, enter the international long-distance access number, the U.S. country code, and the U.S. telephone number (978-635-6090).

Listen to the instructions provided by the voice prompts.

3.

Press 1 if you do not want an introduction to FaxFlash. Follow the automated instructions for ordering your document or catalog.

Troubleshooting and Repair 4-3

Press 2 if you want an introduction to FaxFlash. Follow the automated instructions for ordering your catalog or document.

When prompted, enter your fax number and name.

4.

For international use, first enter the international long-distance access number (011), your country code, your area code or city code, then your fax number.

The information you requested is automatically sent to your fax machine. Wait for the ordered document to arrive at your fax machine before calling to order more documents. If FaxFlash attempts to send the second order before the first order is completed, the order may be canceled. After three tries, FaxFlash assumes that your line is busy and terminates any further processing of the order.

HELPFUL STARTERS

Here are some helpful items to check before troubleshooting the notebook:

Is there any external power source connected to the computer?



Has the battery been fully charged?



Is the computer turned on and the POWER LED activated?



Is the LCD display control switch moved to its minimum level?



Is the LCD display switched to the external monitor? Are all cables and devices connected properly and securely?



Have all needed device drivers been installed properly?



Have you checked the AUTOEXEC.BAT and CONFIG.SYS files for errors?



Is the Suspend mode activated (LED Status Bar)? Press the suspend button to wake up the system again.

4-4 Troubleshooting and Repair

y

g

y

g

y

g

y

POWER-ON SELF TEST (POST)

This section provides you with the AMI 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 AMI BIOS startup error messages that are displayed on the notebook’s display. These messages will help you to understand many of the notebook’s problems that may be corrected by entering the CMOS SETUP program and checking the original values.

Table 4-2 POST Error Messages

Message Possible Cause Action

Diskette drive A failure The drive failed or is

missing.

Diskette read failure -

F1

press for SETUP utility

No display message, s adapter fails,

Gate A20 failure The keyboard controller is

Fixed disk configuration error

Fixed disk controller failure

Fixed disk read failurepress for SETUP utility

to retry boot,

stem will beep when

F1

to retry boot,

The diskette is either not

F2

formatted or is defective.

The primar failed.

not acceptin specificall and disable A20 command.

The specified confi supported or doesn't match the actual hardware installed.

The fixed disk may be defective.

The fixed disk ma

F2

confi defective.

, the enable

uration is not

ured incorrectly or is

video adapter

command,

be

Check the drive to determine the problem.

Replace the diskette with a bootable diskette and retr

Check the primary video adapter.

Check the ke controller and s Turn the power off, then back

ain. If the problem

on a persists contact qualified NEC service personnel.

Correct the fixed disk configuration.

Try rebooting. If that doesn't work, replace the fixed disk.

Check the drive t in SETUP. Tr that does not work, replace the fixed disk.

board

stem board.

pe selected

rebooting. If

.

Pointer device failure The PS/2-style mouse

failed.

Try rebooting. If problem persists, check the mouse, it's cable and connector.

Troubleshooting and Repair 4-5

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Table 4-2 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

rebooting. If the problem

Tr persists, replace the diskette or the fixed disk.

defective.

No boot sector on fixed

F1

disk - press

to retr

boot, F2 for SETUP utility Not a boot diskette - press

F1

to retry boot, F2 for

SETUP utility

The C: drive is not formatted or is not bootable.

The diskette in drive A: is not formatted as a bootable diskette.

Format the C: drive and make it bootable.

Replace the diskette with a bootable diskette and tr rebooting.

No timer tick interrupt The timer chip has failed. Check the system board,

Turn the power off, then back

ain. If the problem

on a persists, contact qualified service personnel.

Shutdown failure Either the keyboard

controller is not acceptin the reset command or the associated reset lo failed.

ic has

Check the ke controller and s Turn the power off, then back

ain. If the problem

on a persists, contact qualified

board

stem board.

service personnel.

Time of day not set - run SETUP program

Real Time Clock is not set.

Run SETUP utility.

Timer 2 failure The timer chip has failed. Check the system board.

Turn the power off, then back

ain. If the problem

on a persists, contact qualified service personnel.

F2 to enter ROM-based SETUP

Invalid configuration information - please run SETUP

Invalid configuration information must be changed.

Displa

adapter is

configured incorrectly. Memory size is incorrect.

number of diskette

Wron

You must run SETUP utilit and correct configuration information.

Run the SETUP utility.

drives.

4-6 Troubleshooting and Repair

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g

y

g

y

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y

Table 4-2 POST Error Messages (cont’d)

Message Possible Cause Action

Keyboard clock line failure The keyboard, the

board cable

ke connection, or the

board controller is

ke defective.

Keyboard data line failure The keyboard controller

firmware has failed.

Keyboard stuck key failure A key is jammed. Locate the jammed key and

Memory failure at

value

, read

expecting

hex-value

hex-

hex-value

Circuitry associated with

,

the memor failed.

chips has

Make sure the ke cable and ke connected properl the ke the s power off, then back on a contact qualified service personnel.

Check the keyboard controller and s Turn the power off, then back on a persists, contact qualified service personnel.

fix it. Make sure the ke cable and ke connected properl power off, then back on a contact qualified service personnel.

Turn the power off, then back on a persists, contact qualified service personnel.

board controller and

stem board. Turn the

ain. If the problem persists,

ain. If the problem

ain. If the problem persists,

ain. If the problem

board

board are

. Check

stem board.

board

board are

. Turn the

Unexpected interrupt in protected mode

Real time clock failure The RTC or battery failed. Run SETUP and turn the

Hardware interrupt or NCI occurred while in protected mode.

Check the timer chip or the interrupt controller on the system board.

power off and on. If the problem persists, replace the RTC batter remains, contact qualified service personnel.

. If the problem

Beep Codes

Fatal errors that occur during POST are communicated through a series of beeps. All beep code errors, except beep code 8, are fatal errors and do not allow the system to continue to boot.

Troubleshooting and Repair 4-7

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If beep codes occur during POST, check the items in the Problem Checklist (at the start of this chapter), verify that all the hardware is set up properly and securely connected, and try rebooting. If you still get a beep code, go to the section “If You Need Assistance” at the end of this chapter.

Beep Codes are listed in the table that follows.

Table 4-3 Beep Codes

Number of Beeps

1 Refresh Failure The memory refresh circuitry on the

2 Parity Error Parity error in the first 64 KB of memory. 3 Base 64 KB Memor

4 Timer Not Operational Memory failure in the first 64 KB of

5 Processor Error The CPU on the motherboard generated

6 Gate A20 Failure The keyboard controller may be bad.

7 Processor Exception

8 Display Memor

Error Description

motherboard is faulty.

Memory failure in the first 64 KB.

Failure

or Timer 1 on the motherboard

stem video adapter is either

or its memory is faulty. (This is

Interrupt Error

Read/Write Error

memor is not functioning.

an error.

The BIOS cannot switch to protected mode.

The CPU generated an exception interrupt.

The s missin not a fatal error.)

9 ROM Checksum Error The ROM checksum value does not

match the value encoded in the BIOS.

10 CMOS Shutdown Register

Read/Write Error

11 Cache Error/External

Cache Bad

The shutdown register for CMOS RAM failed.

The external cache is faulty.

4-8 Troubleshooting and Repair

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g

y

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y

Informational Messages

This section lists the messages that provide information to the user but require no action.

Table 4-4 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.

Memory tests terminated b keystroke

Press the F1 key to continue This message indicates that an error was found durin

Beginning memory test Press

SPACEBAR

the memory test

Press the F1 key to continue, to run the Setup utility

to terminate the

The messa spacebar while memor stopped the memory tests.

POST. Pressing the F1 key allows the system to attempt to reboot.

A user can stop the memor spacebar.

F2

This messa POST. Pressing the attempt to boot. Press ROM-based SETUP utilit information.

e indicate that a user pressed the

tests were running and

tests by pressing the

e indicates that an error was found durin

F1

key allows the system to

F2

allows users to run the

to correct configuration

Troubleshooting and Repair 4-9

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Run-time Error Messages

The following table lists run-time error messages.

Table 4-5 Run-time Error Messages

Message Cause Action

I/O card parity interrupt at

address

NCI, (R)eboot, other ke continue

Memory parity interrupt at

address

NCI, (R)eboot, other ke continue

Unexpected HW interrupt, interrupt at address. T (R)eboot, other ke continue

Unexpected SW interrupt,

interrupt at address

(R)eboot, other ke continue

. Type (S)hut off

pe

s to

. Type

s to

Memor has failed.

A memor memory card has failed.

Hardware problem. Not displa interrupt handler is not enabled.

Error(s) in the software pro extended interrupt handler is not enabled.

on a peripheral card

chip(s) on a

ed if the expected

ram. Not displayed if the

Check the memory cards installed in the system.

Replace the memory card. Replace the system board.

Check all hardware in the system.

Turn the machine off and then on a work, check the program.

ain. If it doesn’t

4-10 Troubleshooting and Repair

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gg

y

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QUICK TROUBLESHOOTING

This section summarizes problems that may develop during system operation and lists suggested corrective actions.

Table 4-6 Quick Troubleshooting

Problem Corrective Actions

No power Check that the AC adapter is plugged into the

power connector of the s adapter is plu power outlet.

If using the battery as main power source, check if the batter and is inserted correctly.

Check the power board of the system. Is it inserted into the s properly? Otherwise, replace the power board.

ed into a properly grounded AC

pack is of the right type, charged

stem board connector

stem. Also, that the AC

Data on the LCD is unreadable Adjust the brightness and contrast displa

controls found on the right side of the LCD panel. Check if the LCD cables are inserted properl

Check also connections inside the LCD panel. Check if installed VGA driver is correct. Check VGA controller chip on the s

if there is any cold or loose soldering. Replace the system board.

LCD screen does not show data Check the LED Status Bar if Suspend mode is

activated. Press an button to resume operation and display.

Check if LCD cables are disconnected or loose. Check if the displa

external monitor. Check if the Contrast level is set to minimum. Check if there is power. Check if the SW51 Jumper settin

correct. Replace LCD Inverter board found inside the

LCD Panel.

key or press the power

output is switched to the

stem board

mode is

.

Troubleshooting and Repair 4-11

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y

Table 4-6 Quick Troubleshooting (cont’d)

Problem Corrective Actions

Battery Power does not last Make sure that the power management features

are enabled. Rechar

using again. Replace the battery pack.

System halts during boot sequence Check condition of selected bootload device

(diskette or hard disk) for bad boot track or incorrect OS files.

Tr recopy or repartition hard disk.

Check for any BIOS error messages on the display screen.

Replace the system board.

I/O processing malfunctions Check the connections of all internal devices.

e the battery pack for 1½ hour before

booting from a new bootable diskette and

Replace the system board.

Diskette drive does not work Check if the diskette drive cable is connected

properly. Check the diskette type if correct and not faulty. Replace the diskette drive. Replace the system board.

Hard disk drive malfunction Check if hard disk drive is set properly on CMOS

SETUP. Check the drive cables and connections. Check if the disk drive is good. Replace the system board.

Memory malfunction Check if the memory module is inserted properly.

Replace the memory module. Replace the system board.

External keyboard or PS/2 mouse doesn’t work

Check if keyboard or mouse are connected properl off system first before plugging in the device.

Replace the keyboard or mouse. Replace the system board.

. Check Y-cable if it is being used. Power

4-12 Troubleshooting and Repair

y

g

y

Table 4-6 Quick Troubleshooting (cont’d)

Problem Corrective Actions

PCMCIA card does not work Check the PCMCIA driver installation for an

IRQ or IO address conflict. Check if the PCMCIA card is inserted properl

and all connections are set. Replace the PCMCIA card. Check for work around for the card bein Replace the system board.

Serial device does not work Check if the serial device is connected properly.

Replace the serial device. Check the I/O controller chip on the s

board for an Replace the system board.

Parallel device does not work Check if all connections are properly set.

Check if the Port is enabled in Setup. Check if external device is turned on. Check I/O controller chip on the s

cold or loose soldering.

an Replace the system board.

cold or loose soldering.

used.

stem

stem board for

NEC Versa 2785MT Reference Manual

Preface

Contents

Technical Information

General Specifications

Hardware Functional Overview

Troubleshooting and Repair