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Table of Contents

Section One: Introduction
     1.0 Overview
           1.1 System Features
           1.2 Case Design
                 1.2.1 Front View
                 1.2.2 Rear View
                 1.2.3 Left Side View
                 1.2.4 Right Side View
                 1.2.5 Bottom View
     1.3 Power Supply
           1.3.1 Specifications
                   1.3.1.1 AC Input
                   1.3.1.2 DC Output
                   1.3.1.3 Operational Characteristics
Section Two: Theory of Operation
     2.0 Overview
           2.1 Main System
                 2.1.1 MC68030FG Microprocessor
                          2.1.1.1 MC68030FG Pin and Signal Description
                 2.1.2 MC68882 Optional Coprocessor
                          2.1.2.1 MC68882 Pin List and Signal Description
                 2.1.3 ROM
                 2.1.4 System RAM
                          2.1.4.1 System RAM Connector Pin List
                                      2.1.4.1.1 50-Pin Connector J17
                                      2.1.4.1.2 30-Pin Connector J6
                          2.1.4.2 System Memeory Map
                 2.1.5 COMBO IC
                          2.1.5.1 Memory Control Unit
                          2.1.5.2 Interrupt Mask and Status Control
                                      2.1.5.2.1 Interrupt Priority Level Signal Definition
                          2.1.5.3 Buss Error Circuitry and Illegal Condition Detect
                          2.1.5.4 Clock Dividers
                          2.1.5.5 Chip Selects
                          2.1.5.6 Paddle Circuitry
                          2.1.5.7 Joystick Circuitry
                          2.1.5.8 Blitter
                          2.1.5.9 Light Gun Circuitry
                          2.1.5.10 COMBO IC Pin List and Signal Description
                  2.1.6 DMA Support
                           2.1.6.1 DMA Pin and Signal List
                  2.1.7 Real-Time Clock
                           2.1.7.1 Real-Time Clock Pin and Signal List
                  2.1.8 System Timing and Bus Control
                           2.1.8.1 68000 Bus Decode PAL U68
                           2.1.8.2 68000 Bus Decode PAL U63
                           2.1.8.3 68000 Bus Decode PAL U62
                           2.1.8.4 68000 Bus Decode PAL U67
                           2.1.8.5 68000 Bus Decode GAL U44
                  2.1.9 Configuration Switch
     2.2 Audio/Video Subsystem
           2.2.1 Video Subsystem Overview

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                    2.2.1.1 Video RAM
                    2.2.1.2 Interrupt and Data Load Control (COMBO)
                    2.2.1.3 Video Shifter (VIDEL)
                    2.2.1.4 Video to Digital Analog Converter (SGC DAC)
                                2.2.1.4.1 Video to Digital Analog Converter Pin and Signal List
                    2.2.1.5 NTSC/PAL Encoder (1377)
                    2.2.1.6 VIDEL Pin and Signal List
                    2.2.1.7 Monitor Connector Pin List
           2.2.2 Audio Subsystem
                   2.2.2.1 Prigrammable Sound Generator
                   2.2.2.2 DMA Sound
                   2.2.2.3 CODEC IC
                               2.2.2.3.1 CODEC Pin and Signal List
     2.3 I/O Subsystems
           2.3.1 SCSI II Interface
                    2.3.1.1 5380 SCSI Controller Pin and Signal List
                    2.3.1.2 External SCSI Connector Pin List
           2.3.2 Floppy Disk (FDD)
                    2.3.2.1 AJAX Pin and Signal List
                    2.3.2.2 Internal Floppy Connector Pin List
           2.3.3 68901 MFP
                    2.3.3.1 Interrupt Control
                    2.3.3.2 68901 MFP Pin and Signal List
           2.3.4 8530 Serial Communications Controller (SCC)
                    2.3.4.1 8530 Pin and Signal List
                    2.3.4.2 Serial Port Pin and Signal List
                    2.3.4.3 SCC LAN Connector Pinout
           2.3.5 Parallel Printer Port
                    2.3.5.1 Parallel Port Connector Pin List
           2.3.6 Keyboard Interface
           2.3.7 Mouse and Joystick Interface
                    2.3.7.1 Mouse and Joystick Interface Connector Pin List
           2.3.8 Game Controller Ports
                    2.3.8.1 Game Controller Pinout
           2.3.9 ROM Cartridge
                    2.3.9.1 ROM Cartridge Connector Pin List
           2.3.10 Musical Instrument Digital Interface (MIDI)
                    2.3.10.1 MIDI Connector Pin List
           2.3.11 Digital Processor Interface (DSP)
                      2.3.11.1 DSP Pin and Signal List
                      2.3.11.2 DSP Connector Pin List
           2.3.12 IDE Interface
                      2.3.12.1 IDE Connector Pin List
           2.3.13 Expansion Connector
                      2.3.13.1 Expansion Connector Pin List
     2.4 System Startup
     2.5 System Errors
           2.5.1 Number of Bombs and Meaning
     2.6 Overall Block Diagram
Section Three: Testing
     3.0 Overview
     3.1 Test Equipment
     3.2 Test Configuration
     3.3 Troubleshooting a Dead Unit

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     3.4 FALCON030 Diagnostic Cartridge
     3.5 Power Up Sequence
           3.5.1 Initialization and Check Sequence
                    3.5.1.1 RAM
                               3.5.1.1.1 All Ones - All Zeros (I1)
                               3.5.1.1.2 Walking Zeros (I1)
                               3.5.1.1.3 Address Line Shorting (I2)
                               3.5.1.1.4 Low 2K RAM Address Check (I3)
                               3.5.1.1.5 RAM Stack Test
                    3.5.1.2 System Initialization
                    3.5.1.3 Check Messages
                                3.5.1.3.1 Bus Error Check
                                3.5.1.3.2 FPU Check
                                3.5.1.3.3 FALCON Specific Checks
                                3.5.1.3.4 PSG and Printer Port Initialization
                                3.5.1.3.5 Timer Testing - GENLOCK
                    3.5.1.4 Clean Up
           3.5.2 Error Message Summary
                    3.5.2.1 Initialization Errors
                    3.5.2.2 Check Message Summary
     3.6 Test Menu
           3.6.1 Diagnostic Tests Menu
           3.6.2 Main Menu Test Selection
                    3.6.2.1 Unattended Tests
                                3.6.2.1.1 RAM & SRAM Test
                                3.6.2.1.2 ROM Test
                                3.6.1.2.3 MIDI Tests
                                3.6.1.2.4 SCC Serial Port
                                3.6.1.2.5 Timing
                                3.6.1.2.6 SCSI DMA
                                3.6.1.2.7 Floppy Disk
                                3.6.1.2.8 Printer/Joy/Game
                                3.6.1.2.9 Real-Time Clock
                                3.6.1.2.10 Short BLiT
                                3.6.1.2.11 Long BLiT
                                3.6.1.2.12 Expansion Port
                    3.6.2.2 Operator Tests
                                3.6.2.2.1 Audio
                                              3.6.2.2.1.1 PSG Sound
                                              3.6.2.2.1.2 1kHz Mono Tone
                                              3.6.2.2.1.3 1kHz/500 Hz Stereo Tones
                                              3.6.2.2.1.4 Treble Attenuation
                                              3.6.2.2.1.5 Bass Attenuation
                                3.6.2.2.2 Video
                                               3.6.2.2.2.1 Color Test
                                               3.6.2.2.2.2 Video Monitors Test
                                               3.6.2.2.2.3 VGA Modes Test
                                 3.6.2.2.3 Keyboard
                                 3.6.2.2.4 IDE Hard Disk
     3.7 Error Codes Quick Reference
Section Four: Disassembly/Assembly
     4.1 FALCON030 Disassembly
           4.1.1 Top Cover/Keyboard Removal

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           4.1.2 Shield and Speaker Removal
           4.1.3 Floppy Disk Removal
           4.1.4 Power Supply Removal
           4.1.5 Memeory Board Removal
           4.1.6 Removal of Main Assembly from Bottom Case
           4.1.7 Removal of Upper Shield from Printed Circuit Board
     4.2 FALCON030 Re-assembly
Section Five: Symptom Checklist
     5.1 Display Problems
     5.2 Disk Drive Problems
     5.3 Keyboard {roblems
     5.4 MIDI Problems
     5.5 RS232 Problems
     5.6 Printer Port Problems
     5.7 Hard Disk Port Problems
     5.8 DMA Sound
Section Six: Diagnostic Flowcharts
Section Seven: Parts List and Assembly Drawings
Section Eight: Glossary
Section Nine: Schematic and PCB Layout

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