NEC Versa 550 Series Manuals

Manuals and User Guides for NEC Versa 550 Series. We have 1 NEC Versa 550 Series manual available for free PDF download: Service Manual

NEC Versa 550 Series Service Manual

NEC Versa 550 Series Service Manual (128 pages)

Brand: NEC | Category: Laptop | Size: 1.08 MB

Table of Contents

Preface
2
Abbreviations
3
Table of Contents
6
Section 1 Technical Information

13
- Feature Highlights
  14
- System Configuration
  14
- Quick Tour of the Notebook
  16
  - The Front Side of the Notebook
    16
    
    Color LCD Display Panel
    16
    
    Power Switch/Lcd Cover Switch
    17
    
    Status Panel and Power Indicator
    17
    
    Keyboard
    19
- Embedded Numeric Keypad
  19
  - Trackball
    21
  - The Right Side of the Notebook
    21
- Right Side of the Notebook
  21
  - Built-In Floppy Disk Drive
    22
  - Hard Disk Drive Compartment
    22
  - The Left Side of the Notebook
    22
    
    Battery Compartment
    22
- Left Side of the Notebook
  22
  - PCMCIA Slot Compartment
    23
  - DC-IN Connector Jack
    24
- Inserting a PCMCIA Card
  24
- Connecting the AC Adapter to the Notebook
  24
  - Hardware Reset Switch
    25
  - The Rear Side of the Notebook
    25
    
    External Keyboard and PS/2 Mouse Port
    25
    
    VGA Port
    25
- Rear Side of the Notebook
  25
  - Printer Port (LPT 1)
    26
- Connecting an External Monitor
  26
- System BIOS Setup Program
  28
  - The Bootup Setting Menu
    28
- The Power Management Setting Menu
  31
- Power Management Setting Menu
  33
- Power Management Setting Menu
  34
- Notebook Drivers and Utilities
  35
- System Upgrades
  38
  - Memory Upgrade Procedure
    38
  - System BIOS Upgrade Procedure
    40
Section 2 NEC Versa 550 Specifications

41
List of Tables

46
- Product MIX
  46
- Motherboard
  46
- Model Configurations
  46
  - LCD Status Board
    48
  - Cables
    48
- Display Unit Specification
  48
  - Lcd
    48
  - LCD Status Board Specifications
    48
- LCD Panel Specifications
  48
  - Inverter
    49
  - LCD Status Bar Indicator
    49
  - LCD Status Bar Indicator Specification
    49
  - FDD Unit Specification
    50
  - HDD Unit Specification
    51
  - Nimh Battery Pack Specification
    51
  - DC/DC Converter Specification
    51
  - Battery Charger
    52
  - Keyboard Unit Specification
    52
  - Pointing Device Specification
    52
  - Battery Charger Specification
    52
  - Switch Specification
    53
  - AC/DC Adapter Specification
    53
  - BIOS Specification
    54
- BIOS Support
  54
  - Power Management Features (Mode Definition)
    55
- Power Management Specifications
  55
  - Power Management Features (Mode Transition)
    56
- Mode Definitions
  56
- Mode Action
  56
  - Auto Power Reduction (APR)
    57
  - Hotkey Definitions
    57
- APR Times
  57
  - Environmental Specifications
    57
  - AC Power Source
    58
  - Vibration
    58
  - Shock
    58
- AC Power Specifications
  58
- Esd
  59
- ESD Specifications
  59
Section 3 Hardware Functional Overview

60
- Functional Block Diagram
  61
  - System BIOS
    62
  - System Processor
    62
- Major Functional Blocks
  63
- System Logic Controller
  63
- Memory Subsystem
  65
  - DRAM Memory
    65
  - ROM Memory
    66
- I/O Subsystem
  66
- Video Subsystem
  66
  - Video Chipset Controller
    67
  - External VGA Capability
    68
- Keyboard Subsystem
  68
- PCMCIA Controller and Sockets
  69
- Hard Disk Subsystem
  69
- Floppy Disk Drive Subsystem
  70
- Pointing Device Subsystem
  70
- Power Subsystem
  70
  - AC Power Adapter
    70
  - Internal Battery Pack
    70
  - Powerboard
    71
  - LCD Inverter Board Assembly
    71
Section 4 Field Service Guidelines

72
Section 5 Troubleshooting and Repair

92
- Service Information
  92
Appendix A Supported Video Modes

93
- VGA Standard Modes
  93
- VGA Extended Modes
  94
- VGA High Refresh Modes
  96
- Technical Support
  98
- Product Information
  98
- Ordering Information from Fastfacts
  98
- Helpful Questions
  99
- Power on Self Test (POST)
  99
  - POST Messages
    100
- POST Error Messages
  100
- Informational Messages
  103
- Beep Codes
  103
  - Explanation of Test Terms for Beep Code Table
    103
  - Beep Codes for System Board Errors
    104
- Run-Time Error Messages
  109
- Quick Troubleshooting
  110

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