NEC NEC Computer Systems Division, Packard Bell NEC, Inc. - Manuals

Contents v DRAM Memory.................................................................................................... 3-6 ROM Subsystem ................................................................................................... 3-6 I/O Subsystem ............................................

vi Contents Removing/Replacing the System Board and I/O Board .......................................... 4-10 Separating the System Board and I/O Board ......................................................... 4-11 Removing/Replacing the Power Board .....................................................

Contents vii 1-13 Connecting to the Printer Port ........................................................................ 1-12 1-14 Connecting to the Serial Port ......................................................................... 1-12 1-15 Bottom View of the Notebook .............................

viii Contents 2-13 Battery Specifications..................................................................................... 2-14 2-14 DC/DC Converter & Battery Charger Specifications ...................................... 2-15 2-15 Battery Charger Specifications .................................

Contents ix A-13 VGA High Refresh Modes (Packed Pixel Mode) ............................................ A-5 A-14 VGA High Refresh Modes (Planar Mode) ...................................................... A-5 A-15 VGA High Refresh Modes (Packed Pixel Mode) .............................................

(For United States Use Only) FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT ! WARNING Changes or modifications to this unit not expressly approved by the party responsible forcompliance could void the user’s authority to operate the equipment. NOTE This is a Class B Digital...

xiii Abbreviations A ampere AC alternating current AT advanced technology(IBM PC) BBS Bulletin Board System BCD binary-coded decimal BCU BIOS Customized Utility BIOS basic input/output system bit binary digit bpi bits per inch bps bits per second BUU BIOS Upgrade Utility C centigrade Cache high-spee...

xiv Abbreviations IRR Interrupt Request register ISA Industry Standard Architecture ISR In Service register I/O input/output IPC integrated peripheral controller ips inches per second IRQ interrupt request K kilo (1024) k kilo (1000) KB kilobyte kg kilogram kHz kilohertz kV kilovolt lb pound LDTR lo...

Abbreviations xv UART universal asynchronous receiver/transmitter V volt Vdc volts, direct current VESA video electronics standards association VFO variable frequency oscillator VGA Video Graphics Array VLSI very large-scale integration VRAM virtual RAM W watt µ f microfarad µ PD microprocessor µ s ...

Section 1 Introduction This section focuses on providing outline features and operations of the NEC Versa 2500Series Notebook Computer, including the BIOS Setup program. (Refer to the User’s Guidefor more information on operating the notebook.) The NEC Versa 2500 Series of note-books are lightweight...

1-2 Introduction FEATURE HIGHLIGHTS The NEC Versa 2500 Series notebook includes a variety of innovative features designed tomeet the most demanding computing requirements Table 1-2 Feature Highlights Features Description CPU Intel P54CSLM-133 MHz processor with internal 16 KB cachememory and math co...

Introduction 1-3 SYSTEM CONFIGURATION The following diagram shows the NEC Versa 2500 Series system configuration. C a c h e R A M L 2 : 2 5 6 K B w r i t e b a c k B I O S F l a s h R O M 8 / 1 6 M B R A M O n - B o a r d U p g r a d a b l e t o 4 8 M B C o l o r L C D ( 8 0 0 x 6 0 0 ) D S T N V L ...

1-4 Introduction QUICK TOUR OF THE NOTEBOOK Take a moment to become familiar with the locations and functions of all controls. It is rec-ommended that you first go through the notebook’s user guide for more information onhow to operate all of the features. Main Components This section describes the ...

Introduction 1-5 Keyboard The notebook has a built-in 87/88-key keyboard that provides complete emulation of a full-sized IBM AT-enhanced keyboard with function keys and screen/cursor control keys. Figure 1-3 Standard Keyboard Layout The notebook keyboard includes an embedded numeric keypad, and som...

1-6 Introduction Table 1-3 Fn Key Combination Summary (cont’d) Key Combination Function Fn key + F11 key This key combination toggles the LCD display backlighting (CCFT)on and off. Fn key + right key This key combination increases the contrast level. Fn key + left key This key combination decrease t...

Introduction 1-7 Memory Slot Compartment The memory compartment is located just under the keyboard. Inside the compartment aretwo extra memory module sockets which can accommodate any standard JEDEC 8 MB or16 MB DIMM modules. Figure 1-5 Memory Slot Compartment The Right Side of the Notebook This sec...

1-8 Introduction The NEC Versa 2500 Series also comes with DOS/Windows PC card drivers for supportingvarious PC cards like modem cards, network cards, and other I/O and memory cards. TheLED Status Bar, likewise, provides lights to indicate when the computer is accessing the in-serted PC cards. The u...

Introduction 1-9 Figure 1-7 Removing the Battery Pack Left Side of the Notebook The following details the left side of the NEC Versa 2500 Series computer. Figure 1-8 Left Side of the Notebook DC-IN Connector Jack The NEC Versa 2500 series provides a universal auto-switching AC adapter which con-nect...

1-10 Introduction Figure 1-9 Connecting the AC Adapter to the Notebook Hardware Reset Switch To the right of the AC adapter connector jack, you will notice a small hole which allows aneasy alternative to resetting the notebook’s hardware. The Rear of the Notebook The following details the rear side ...

Introduction 1-11 Figure 1-11 Connecting an External Keyboard and PS/2 Mouse VGA Port The 15-pin female VGA connector allows you to connect an external VGA monitor thatsupports up to 1024x768 pixels resolution. When displaying on an external VGA monitoralone, the VGA port supports resolutions up to ...

1-12 Introduction Printer Port The 25-pin printer port provides a parallel interface to connect a parallel printer or pocketnetwork adapter. Many operating systems and software applications refer to this port asLPT1. You can run the BIOS Setup program to change the configuration of the parallelport ...

Introduction 1-13 Figure 1-15 Bottom View of the Notebook The following describes the bottom of the NEC Versa 2500 Series computer. Battery Module Handle and Lock To release the battery module from its compartment, push the battery compartment latch asindicated by the arrow marked on it. While doing...

1-14 Introduction SYSTEM BIOS SETUP PROGRAM This section provides the outline features and operation of the Phoenix BIOS Setup pro-gram used in the NEC Versa 2500 Series. The BIOS (Basic Input-Output System) Setupprogram allows you to change the system configuration settings such as the current date...

Introduction 1-15 Table 1-4 Boot Main Setup Menu Item Function System Time This option allows you to change the system time, using theformat hour : minute : second. You can change the systemtime here or from your operating system’s command prompt. System Date This option allows you to change the sys...

1-16 Introduction Table 1-4 Boot Main Setup Menu (cont’d) Item Function POST Errors This options allow the system to pause and display the errormessage at boot attempt. Keyboard Features Selects keyboard options. Num Lock This option toggles the Num Lock key on or off. Keyboard RepeatRate This optio...

Introduction 1-17 Table 1-6 Boot Setup Security Menu Item Function Password This option allows you to limit access to the computer throughthe use of a password. If you select this option, a pop-up win-dow appears asking you to set or change the password. Apassword can be up to seven characters in le...

1-18 Introduction Table 1-7 Boot Setup Power Savings Menu Item Function Power Saving This option allows you to enable or disable power manage-ment. Select Disabled , all other power management settings are ig- nored and disabled as well. Select Disabled ON AC , the power management is disabled only ...

Introduction 1-19 Table 1-7 Boot Setup Power Savings Menu (cont’d) Item Function Cover Switch Con-trol This option allows you to effectively program the type of eventwhich occurs when the display panel is closed. Select SUSPEND , the computer enters the SUSPEND Mode when the LCD Panel is closed. Sel...

1-20 Introduction To upgrade the memory in the notebook, follow these steps. 1. Power off the computer and remove the AC adapter and battery pack. 2. Remove the hinge covers, status bar cover, and the keyboard from the top of theunit and locate the memory expansion sockets. 3. Remove the extra DIMM ...

Introduction 1-21 1. Copy the PHLASH.COM & PLATFORM.BIN BIOS utility program and the BIOS ROM file to the hard disk subdirectory. You can also choose to run the programfrom the diskette. 2. Disable EMM386 or other memory manager programs before restarting the com-puter. When booting DOS, press F...

Section 2 General Specifications The following table lists NEC Versa 2500 Series system specifications. Table 2-1 NEC Versa 2500 Series Specifications ITEM SPECIFICATION CPU Pentium P54CSLM-133 MHzTCP Package System RAM 16 MB On-board Upgradeable to 48 MB Memory Modules: 8 MB/16 MB/32 MB 256 KB, L2C...

2-2 General Specifications Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION CD-ROM Reader Removable CD-ROM Reader8x speed Diskette Drive Removable Diskette Drive 720KB/1.44 MB Mode Support (Overseas version) Display 12.1” DSTN Color LCD Module: 800 x 600 in 256 colors Exter...

General Specifications 2-3 Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION HotKeyOperation Fn + F8 = PC Beep Mute Fn + Esc = Suspend Control Fn + <Right Arrow> = Contrast Up Fn + <Left Arrow> = Contrast Down Fn + <Up> = Brightness Up Fn + <Down> = B...

2-4 General Specifications Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION Audio Support external Stereo Headphone Jack Support external Stereo Line-In Jack Support external MIC. Jack Two Built-in speakers Built in microphone Status Indicator LED Display External LED Power...

General Specifications 2-5 Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION Key Components 12.1” Color DSTN SVGA LCD: EDMGR68KBF (Panasonic) CD-ROM:CDR-38E-900 Hard Disk Drive:1.4 GB MK1401MAV (Toshiba) Diskette Drive:NEC FD1238H Keyboard:87/88 Key Full Size (Windows 95) Co...

2-6 General Specifications Table 2-1 NEC Versa 2500 Series Specifications (cont’d) ITEM SPECIFICATION Flash ROM: AMD AM29F002T PWM Controller: MAXIM MAX797 MOSFET: NS 9410 & 9953 AC Adapter PRODUCT MIX The following table lists the NEC Versa 2500 Series product mix. Table 2-2 Product Mix Versa 2...

General Specifications 2-7 SYSTEM BOARD SPECIFICATIONS The following table lists system board specifications. Table 2-3 Main Board Specifications ITEM SPECIFICATION Clock NS Clock Buffer CGS74CT 2524 CPU ∗ PGA Socket Cache ∗ 256KB, L2 DRAM ∗ 1M x 16-bit DRAM x 4 Video RAM ∗ 256K x 16-bit DRAM (5V / ...

2-8 General Specifications TRANSFER BOARD SPECIFICATIONS The following table lists Transfer board specifications. Table 2-4 Transfer Board Specifications ITEM SPECIFICATION Internal Connector To FDD: 100 Pin, AMPTo second battery 100 Pin, AMP PCB Thickness: 1.2mm Layers: 4 CONVERTER BOARD SPECIFICAT...

General Specifications 2-9 LED INDICATOR BOARD SPECIFICATIONS The following table lists LED indicator board specifications. Table 2-6 LED Indicator Board Specifications ITEM SPECIFICATION Internal Connector To System PCB 50 Pin, Suyin To System PCB 40 Pin, Suyin To LCD Panel 50 Pin, KEL To Inverter ...

2-10 General Specifications I/O BOARD SPECIFICATIONS The following table lists I/O board specifications. Table 2-7 I/O Board Specifications ITEM SPECIFICATIONS Clock Crystal 14.318 MHz, DIP Type Crystal 32.768KHz, DIP Type Crystal 4 MHz, DIP Type Generator:AV9154-43, SOP 16 Pin Buffer:CGS74CT2524 RO...

General Specifications 2-11 Table 2-7 I/O Board Specifications (cont’d) ITEM SPECIFICATIONS Internal Connector To System PCB 100 Pin, AMP To System PCB 100 Pin, AMP To HDD Unit 50 Pin, KEL To CD ROM Unit 40 Pin, KEL To RTC Battery 2 Pin, Molex To Transfer PCB 40 Pin, Suyin To DC Converter 32 Pin, Su...

2-12 General Specifications LCD INVERTER BOARD SPECIFICATIONS The following table lists LCD inverter board specifications. Table 2-8 LCD Inverter Board Specifications ITEM Specification Color Inverter Panasonic 12.1” DSTNLMG9980ZWC Input Voltage 8V to 20V Output Voltage 500VAC Max. Contrast Voltage ...

General Specifications 2-13 LED STATUS INDICATORS The following table lists NEC Versa 2500 Series LEDs. For example, the AC IN LED lightsto indicate power is on and that the battery is charging. Table 2-9 Status LED Descriptions ITEM LED PMU Enabled HDD, FDD and CD-ROM Read / Write PC Card Slots Rea...

2-14 General Specifications HDD UNIT SPECIFICATIONS The following table lists the standard hard drive specifications. Table 2-11 Hard Disk Drive Specifications ITEM SPECIFICATION Module 2.5” Removable HDD Module Capacity 1.4 GB Interface Enhanced IDE Interface Unit Size 100mm (L) x 70mm (W) x 12.7mm...

General Specifications 2-15 DC/DC CONVERTER & BATTERY CHARGER SPECIFICATIONS The following table lists DC/DC converter & battery charger specifications. Table 2-14 DC/DC Converter & Battery Charger Specifications ITEM SPECIFICATION Input Voltage 6V -> 19V Output Voltage 12V, 5V, 3.3V ...

2-16 General Specifications KEYBOARD SPECIFICATIONS The following table lists keyboard specifications. Table 2-16 Keyboard Specifications ITEM SPECIFICATION Key Switch Type Membrane Key Stroke 3.0 ± 0.5mm Operating Force 50 ± 20GF Key Pitch 19.05mm AC/DC ADAPTER SPECIFICATIONS The following table li...

General Specifications 2-17 BIOS SPECIFICATIONS The following table lists BIOS specifications. Table 2-18 BIOS Specifications ITEM Specification Floppy Disk Drive Support standard 3.5” FDD Support 720KB and 1.44 MB Modes Hard Disk Drive Support Standard IDE Hard Disk Auto-detect IDE Features Support...

2-18 General Specifications Table 2-18 BIOS Specifications (cont’d) ITEM Specification Suspend (To RAM) STR can be invoked by Hot-Key, Cover-Switch, Battery Low-LowCondition, & Operating System request STR can be resumed by Keyboard & Power button Save To Disk STD can be invoked by Hot-Key, ...

General Specifications 2-19 POWER MANAGEMENT FEATURES (MODE DEFINITION) The following table lists power management specifications. Table 2-20 Power Management Modes Mode Device Speed Full-On Mode CPU State Peripherals State Full speed Normal Doze Mode Timer CPU State DRAM State Peripherals State Act...

2-20 General Specifications Table 2-20 Power Management Modes Mode Device Speed Suspend To Disk Timer CPU State Power System Power-On Group Activity Events Off/1/2/4/8/16 Min Off Off Micro-Controller Power Switch Battery LowCondition CPU State LCD State CPU Clock/2 Battery Low / LowCondition CPU Sta...

General Specifications 2-21 6. Fully-On Activity Events Occur 7. Suspend Mode Time-OutBattery Low - Low Condition 8. Resume Events Occur HOT KEY DEFINITION The following table lists hot key definitions. Table 2-22 Hot Keys FUNCTION KEY CONTENT Fn + Esc Suspend Fn + F10 LCD/CRT/SIMUL. Display Fn + F1...

2-22 General Specifications POWER SOURCE SPECIFICATIONS The following table lists system power specifications. Table 2-24 Power Specifications Input Nominal Version AC Voltage 100 ~ 250 V 90 ~ 265 V AC Frequency 50 / 60 Hz 47 ~ 63 Hz VIBRATION SPECIFICATIONS The following table lists vibration speci...

General Specifications 2-23 ELECTRO-STATIC DISCHARGE (ESD) SPECIFICATIONS The following table lists static discharge specifications. Table 2-27 Electro-Static Discharge Specifications ITEM SPECIFICATION Contact Discharge ± 2, 4, 8, 12.5, 15 kV Air Discharge ± 2, 4, 15 kV HCP ± 2, 4 kV VCP ± 2, 4 kV ...

Section 3 Hardware Functional Overview The NEC Versa 2500 Series notebooks consist of several major functions and subsystemsincluding: „ 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...

3-2 Hardware Functional Overview FUNCTIONAL BLOCK DIAGRAM The following figure shows the NEC Versa 2500 Series functional diagram. B a n k 0 8 M B ( o n - b o a r d ) B a n k 1 8 , 1 6 M B ( D I M M ) C a c h e R A M L 2 : 2 5 6 K B w r i t e b a c k C O R E C H I P U M C U M 8 8 9 1 B F - N , U M 8...

Hardware Functional Overview 3-3 The NEC Versa 2500 Series uses the Phoenix BIOS. The BIOS Setup program is an easy-to-use system utility configuration that sets system parameters and copies them on the FlashROM chip with the system BIOS. The Flash ROM chip also includes BIOS Power-On Self Test (POS...

3-4 Hardware Functional Overview When external memory access is required, the physical address is calculated by the MemoryManagement Unit and then passed to the Bus Interface Unit (BIU). The BIU provides theinterface between the external system board and the processor’s internal execution andcache u...

Hardware Functional Overview 3-5  On-board Memory up to 48 MB  Supports Three Memory Banks  Supports Page Mode/Burst Mode Operation  Supports 512KBx8, 1Mx4, 1Mx16, 2Mx8 and 4Mx4 type DRAM  Supports 8 or 16 bit ROM configuration  Programmable DRAM timing for each bank „ Power Management  Suppo...

3-6 Hardware Functional Overview MEMORY SUBSYSTEM The memory subsystem, implemented on the system board, includes ROM and DRAMmemory. Primary control for the memory subsystem is provided by the UMC 8890 SystemController chipset. DRAM Memory The NEC Versa 2500 notebooks contain 16 MB of 70ns page-int...

Hardware Functional Overview 3-7 VIDEO SUBSYSTEM The video subsystem, implemented on the system board and on the LCD Panel, controls thedisplay output to both the LED Panel and to the external VGA port. The video subsystem utilizes the C&T 65548 High Performance Flat Panel / CRT VGAController. I...

3-8 Hardware Functional Overview  Hardware line drawing  64x64x2 hardware cursor „ High performance resulting from zero wait-state writes (write buffer) and mini-mum wait-state reads (internal asynchronous FIFO design) „ Supports panel resolutions up to 800x600 „ Supports non-interlaced CRT monito...

Hardware Functional Overview 3-9 PCMCIA CONTROLLER AND SOCKETS The PCMCIA controller is implemented on the system board using Omega’s 82C094 Inter-face Controller. The 82C094 is compatible with the Intel i882092AA PCI to PCMCIAcontroller chip. It supports two independent 68 pin PC card sockets and i...

3-10 Hardware Functional Overview The built-in controller can support any industry standard 2.5-inch IDE hard disk drive at19mm or 17mm height. Setting up the hard disk type is done automatically by the CMOSSetup program. Setup auto-detects the installed hard disk type settings for optimized per-for...

Hardware Functional Overview 3-11 Internal Battery Pack The NEC Versa 2500 Series notebooks utilizes NiMH (Nickel Metal-Hydride) that pro-vides DC power for the notebook The battery pack contains ten size A battery cells that provide the system with 12V. Wheninstalled in the notebook, the battery LE...

Section 4 Field Service Guidelines This section contains preventive and corrective maintenance procedures for the NEC Versa2500 Series notebook computers. The first part of this section describes the computercleaning procedures and preferred handling procedures for sensitive components (i.e., diskdr...

4-2 Field Service Guidelines Cleaning the Notebook’s Interior When servicing the inside of the notebook to remove dust and other foreign particles pro-ceed as follows: 1. Remove the top cover, hinge covers, status bar, and keyboard using the disas-sembly procedures discussed later. 2. Dust or vacuum...

Field Service Guidelines 4-3 „ Do not drop the battery packs or subject them to excessive shock and vibration. „ Do not expose the battery packs to direct sunlight, moisture, or chemical com-pounds. „ Do not disassemble the battery packs. „ Do not use the battery packs to power other devices. „ Do n...

4-4 Field Service Guidelines PARTS REMOVAL AND REPLACEMENT PROCEDURES This section contains field service-level removal/replacement procedures for the notebook.Refer to the exploded diagram later in this section to identify all relevant parts. The NECVersa notebook is designed for optimum modularity...

Field Service Guidelines 4-5 Removing/Replacing the Hard Disk Drive Module The procedure for removing and replacing the hard disk drive module is as follows: 1. Turn off the computer. Close the LCD cover and turn the whole unit over. 2. You will find a clamp latch (lock knob) that secures the hard d...

4-6 Field Service Guidelines 3. To replace the diskette drive, remove the four flat screws attaching it to the nulldiskette assembly , two attaching the diskette cover and remove the diskette drivecable. 4. To replace the diskette drive unit, remove the four small screws attaching it to thenull disk...

Field Service Guidelines 4-7 Removing/Replacing the Keyboard The procedure for removing and replacing the keyboard is as follows: 1. Turn off the computer. Follow all disassembly procedures mentioned from thestart of this section. 2. Lift the keyboard out and tilt the upper edge of the keyboard towa...

4-8 Field Service Guidelines 3. Slowly remove the CPU, moving around each side, little by little. Avoid damagingthe CPU pins by forcing the CPU out of its slot immediately. Also, do not pull outthe CPU heat sink as it is part of the CPU. You must remove the CPU and theheat sink together. 4. To repla...

Field Service Guidelines 4-9 1. Turn off the computer and remove the Battery, Hard Disk Drive, and DisketteDrive Modules. Follow all disassembly procedures mentioned from the start ofthis section. 2. Turn the System Unit upside down with the bottom facing up. Remove the ninescrews securing the base ...

4-10 Field Service Guidelines 3. Remove the two screws and lift the board carefully out of the connections to thesystem board. Figure 4-3 The LED Board Module Assembly Removing/Replacing the System Board and I/O Board The system board and the I/O board are assembled together as one unit and must be ...

Field Service Guidelines 4-11 Figure 4-4 The System Board and I/O Boards Separating the System Board and I/O Board The system board is attached directly to the I/O board. The following procedure should betaken to separate the two boards: 1. Turn off the computer. Follow all disassembly procedures me...

4-12 Field Service Guidelines Figure 4-5 The I/O Board Module Assembly Removing/Replacing the Power Board The procedure for removing the power board is as follows: 1. Turn off the computer. Follow all disassembly procedures mentioned from thestart of this section. 2. Remove the two hex spacers from ...

Field Service Guidelines 4-13 ILLUSTRATED PARTS BREAKDOWN This section contains the illustrated parts breakdown (IPB) and NEC part numbers for theNEC Versa 2500 Series computer. Table 4-1 lists field-replaceable parts and correspondingpart numbers. Figure 4-7 shows the field-replaceable parts for th...

4-14 Field Service Guidelines Table 4-1 NEC Versa 2500 Series Field-Replaceable Parts (cont’d)* Item Description Part Number 26 I/O Cover 24-40794-10 27 1.4 GB Hard Disk Drive Assembly 25-00371-00 28 Diskette Drive Assembly 25-00239-00 29 ROM Door 24-40810-10 30 Rubber Foot 24-80631-10 31 Bottom Cov...

Field Service Guidelines 4-15 Figure 4-7 NEC Versa 2500 Series Illustrated Parts Breakdown SOLD BY laptopia2005 DO NOT RESELL!! SOLD BY laptopia2005 DO NOT RESELL!!

4-16 Field Service Guidelines Packaging and Documentation Packaging and documentation part numbers are listed in Table 4-2. Table 4-2 Packaging and Documentation Part Numbers Description Model Number NEC Versa 2500 Series User’s Guide 25-10584-00 NEC Versa 2500 Series Service andReference Manual (th...

Section 5 Troubleshooting and Repair This section focuses on providing you with some information on notebook basic trouble-shooting as well as the BIOS POST error codes and messages. SERVICE INFORMATION NEC service and information telephone numbers are listed in the following table. Table 5-1 NEC Se...

5-2 Troubleshooting and Repair If it is more convenient, questions may also be faxed to TSC. The TSC fax number is: (508) 635-4666 Along with the complete product name and question(s), be sure to included your name andfax number or Internet address, so that an expert can respond to your question(s)....

Troubleshooting and Repair 5-3 For international; enter the international long distance access number, the U.S.telephone number, or the U.S. extension (01-630-775-7999). 4. Listen to the instructions provided by the automated attendant. Press 1 to skip the FastFacts introduction and jump to the auto...

5-4 Troubleshooting and Repair POWER-ON SELF TEST (POST) This section provides you with the Phoenix BIOS POST errors and messages summary.Refer to this whenever you encounter error messages or beep codes generated by the com-puter during startup. POST Messages The following is a summary of the Phoen...

Troubleshooting and Repair 5-5 Table 5-2 POST Error Messages (cont’d) Message Possible Cause Action No boot device available -press F1 to retry boot, F2 for SETUP utility Either diskette drive A:,the fixed disk, or both thediskette and fixed disk aredefective. Try rebooting. If problempersists, repl...

5-6 Troubleshooting and Repair Table 5-2 POST Error Messages (cont’d) Message Possible Cause Action Keyboard clock line failure The keyboard, thekeyboard cableconnection, or thekeyboard controller isdefective. Make sure the keyboardcable and keyboard areconnected properly. Checkthe keyboard controll...

Troubleshooting and Repair 5-7 Informational Messages This section lists the messages that provide information to the user but require no action. Table 5-3 BIOS Informational Messages Message Meaning NCH Base Memory The amount of base memory that tested successfully. NCH Extended The amount of exten...

5-8 Troubleshooting and Repair Run-time Error Messages The following table lists run-time error messages. Table 5-4 Run-time Error Messages Message Cause Action I/O card parity interrupt ataddress. Type (S)hut offNCI, (R)eboot, other keys tocontinue Memory on a peripheral cardhas failed. Check the m...

Troubleshooting and Repair 5-9 QUICK TROUBLESHOOTING This section summarizes problems that may develop during system operation and lists sug-gested corrective actions. Table 5-5 Quick Troubleshooting Problem Corrective Actions No power Check that the AC adapter is plugged into thepower connector of ...

5-10 Troubleshooting and Repair Table 5-5 Quick Troubleshooting (cont’d) Problem Corrective Actions System halts during boot sequence Check condition of selected bootload device(diskette or hard disk) for bad boot track orincorrect OS files. Try booting from a new bootable diskette andrecopy or repa...

Troubleshooting and Repair 5-11 Table 5-5 Quick Troubleshooting (cont’d) Problem Corrective Actions PCMCIA card does not work Check the PCMCIA driver installation for anyIRQ or IO address conflict. Check if the PCMCIA card is inserted properlyand all connections are set. Replace the PCMCIA card. Che...

Appendix A Video Modes The C&T 65548 VGA chipset supports high resolution fixed frequency and variable fre-quency analog monitors in interlaced and non-interlaced modes of operation. Digital moni-tor support is also built-in. The tables in this section list all 65548 CRT monitor videomodes. NOTE...

Video Modes A-3 VGA EXTENDED MODES The C&T 65548 VGA BIOS supports standard VESA and extended modes, listed in thefollowing table. Table A-5 VGA Extended Modes (Text Mode) HexMode No. ofColors TextDisplay FontSize PixelResolution Dot ClockMHz Horiz.Freq.KHz Vert.Freq.Hz 60 16 132 x 25 8 x 16 105...

A-4 Video Modes Table A-9 VGA Extended Modes (16-Bit Linear Mode) - 1MB Video Memory Only HexMode No. ofColors TextDisplay FontSize Pixel Reso-lution DotClockMHz Horiz.Freq.KHz Vert.Freq.Hz 41 64K 80 x 30 8 x 16 640 x 480 50.350 31.5 60 Table A-10 VGA Extended Modes (24-Bit Linear Mode) HexMode No. ...

Video Modes A-5 VGA HIGH REFRESH MODES The following tables list VGA high refresh modes. Table A-13 VGA High Refresh Modes (Packed Pixel Mode) HexMode No. ofColors TextDisplay FontSize Pixel Reso-lution DotClockMHz Horiz.Freq.KHz Vert.Freq.Hz 30 256 80 x 30 8 x 16 640 x 480 31.5 37.5 75 32* 256 100 ...

BATTERY REPLACEMENT A CMOS clock battery in your computer maintains system configuration information. In the eventthat the battery fails to maintain system configuration information, NEC recommends that you re-place the battery. Have an authorized NEC service representative replace the battery. ! WA...

Index A AC adapter connecting, 1-9 AC power adapter, 3-10AC/DC adapter specifications, 2-16 B Battery removing, 1-8 Battery charger specifications, 2-15Battery compartment latch, 1-13Battery compartment release lock, 1-8Battery packs handling, 4-2 Battery specifications, 2-14Battery types, 1-8BIOS, ...

Index-3 T Technical support contacting, 5-1 Transfer board specifications, 2-8Troubleshooting checklist, 5-3 V VersaGlide subsystem, 3-10VGA extended modes, A-3VGA high refresh modes, A-5VGA port, 1-11VGA standard modes, A-1VGA VESA driver diskette, 1-11Vibration specifications, 2-22Video controller...