Corvus systems Personal Workstation Manuals

Manuals and User Guides for Corvus systems Personal Workstation. We have 1 Corvus systems Personal Workstation manual available for free PDF download: Service Manual

Corvus systems Personal Workstation Service Manual

Corvus systems Personal Workstation Service Manual (120 pages)

Brand: Corvus systems | Category: Desktop | Size: 64 MB

Table of Contents

Table of Contents
6
Chapter I-Overview

9
- Concept Modules
  10
  - Electronics Tray
    10
    
    Processor Board
    10
    
    Memory Board
    11
  - Video Monitor
    11
  - Keyboard
    11
  - Power Supply
    11
- Scope of Chapter
  10
- Concept Options
  12
  - Operating System Software
    12
  - Floppy Disk Drive
    12
  - Winchester Disk Drive Options
    12
  - Archival and Back-Up Option
    12
  - Network Option
    12
Chapter 2-Functional Description

13
- Scope of Chapter
  14
- Concept Processor Board
  14
  - Microprocessor
    14
  - Bus Buffers
    14
  - Memory Mapper
    14
  - Roms and Static RAM
    14
  - Omninet
    14
  - 50-Pin I/O Slots
    14
  - Data Communication Ports
    14
  - Interrupts
    14
  - ROM and Static RAM Sockets
    16
  - Adlc
    17
  - Data Acknowledge Timing
    21
- Concept Memory Board
  22
  - Oscillator
    22
  - Horizontal Timing
    22
  - Vertical Timing
    22
  - RAM Timing
    22
  - Memory Selection
    22
  - Horizontal Timing Circuit
    22
  - Video Address Counter
    23
  - Memory Multiplexing
    23
  - Memory Array
    23
  - Memory Buffers
    24
  - Video Shift Registers
    24
Chapter 3-Disassembly

25
- Installation
  26
- Visual Inspection
  26
- Video Monitor Removal and Disassembly
  26
  - Concept Rear View
    26
- Keyboard Disassembly and Cleaning
  27
  - Corvus Dealer Service
    27
- Electronics Tray Disassembly and Assembly
  27
  - Latch Screws
    27
- Electronics Tray Power Connections
  27
- Power Supply Removal
  28
Chapter 4-Adjustments

29
- Scope of Chapter
  30
- Concept Power Supply Adjustments
  30
- Preparations for Video Adjustments
  31
- Video Alignment and Adjustment
  31
- Video PCA
  33
Chapter 5-Troubleshooting

35
- Scope of Chapter
  36
- Levell Troubleshooting
  36
  - Video Monitor
    36
- CORCOM Setting
  37
  - Power Supply
    38
  - Power-On Self Tests
    39
  - Self Test Error Codes
    40
  - Boot Problems
    41
- Level 2 Troubleshooting
  43
  - Macsbug Installation Procedures
    43
  - Communicating with Macsbug
    45
  - Operating Procedures
    45
  - Macsbug Routines
    46
- Component Level Troubleshooting
  46
  - Processor Test Points
    46
  - Memory and Video Controller Test Points
    49
Appendix Aschematics and Assembly Drawings

51
Appendix Btroubleshooting Flow Chart

66
Appendix C: Test Point Signals

69
- Processor Board Signals
  69
- Memory Board Signals
  73
Appendix 0: Timing Charts

76
Appendix E: Macsbug

82
- Macsbug Commands
  82
- Macsbug Routines
  84
- Self Test Routines
  88
Appendix F: Maps

92
- General Memory and I/O Maps
  92
- ROM Mapping of I/O Slots
  94
- VIA General Purpose I/O Ports
  96
- Omninet
  98
- Clock/Calendar/Altmap/Volume
  100
- Data Communication and Keyboard Registers
  102
Appendix G: Memory Board Jumper Layout

106
- H-L 50-Pin I/O SLOT Description
  110
- Data Communication Ports Jl and J2
  111
- Board Connectors J4, J5, and J6
  113
- Additional Connectors
  115
Appendix I: Concept Parts List

117
- Memory Mapper
  118
Appendix J: Specifications

119
- Motorola MC68000
  120

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