Garmin GAD 42 Maintenance Manual - Page 4

TABLE OF CONTENTS Paragraph Page 1.0 INTRODUCTION ...4 2.0 REPAIR ...4 3.0 TECHNICAL SPECIFICATIONS 4 4.0 GAD 42 INSTALLATION 4 5.0 GENERAL DESCRIPTION 4 5.1 Analog PC Board 4 5.2 CPU PC Board 5 6.0 BLOCK DIAGRAM 5 7.0 BASIC THEORY OF OPERATION 5 7.1 Power Supplies 5 7.1.1 Power Input Circuitry 5 7.1.2 Main Power Supply 5 7.1.3 Power Supply (+5 V 6 7.1.4 Power Supply (-5 V 6 7.2 Superflag Output Drivers 6 7.3 XYZ Synchro Input Processing 6 7.4 Filter/Attenuator 6 7.5 Synchronous Rectifier 7 7.6 26 VAC Reference Inputs 7 7.7 Synchro Analog-to-Digital Converter 7 7.8 DC Analog-to-Digital Converter 7 7.9 XYZ Synchro Output Processing 8 7.10 Digital-to-Analog Converter 8 7.11 Output Amplifiers 8 7.12 CPU Circuitry ...9 7.13 FPGA Devices 9 7.14 Serial EEPROM 9 7.15 ARINC 429 Receivers 9 7.16 ARINC Transmitters 10 7.17 ARINC 561/568 Transmitters 10 7.18 King Serial Transmitters 10 7.19 Discrete Inputs 10 7.20 Valid High Inputs 11 7.21 Control Outputs 11 8.0 ASSEMBLY DRAWING 11 1.0 INTRODUCTION GAD 42 MAINTENANCE MANUAL P/N 190-00159-01 Page 3 Rev. A