Garmin gns 430 User Manuals

Table of Contents

• 1.1 INTRODUCTION

  1
• Versions Covered by this Manual

  1
• 1.2 FUNCTIONAL SUMMARY

  1
• GPS 400

  1
• GNC 420

  1
• GNS 430

  1
• 1.3 REPAIR PLAN

  1
• 1.4 SPECIFICATIONS

  1
• 1.5 GENERAL DESCRIPTION

  1
• Main Board

  1
• Com Board

  1
• Nav Board

  1
• GPS Module

  1
• Glideslope Board

  1
• Inverter Board

  1
• CDU Assembly

  1
• Map Board

  1
• 2.1 INTRODUCTION

  2
• 2.2 SPECIAL TOOLS AND TEST EQUIPMENT

  2
• 2.3 TEST PANELS AND CABLES

  2
• 3.1 TROUBLESHOOTING EQUIPMENT

  3
• 3.2 TROUBLESHOOTING ORDER

  3
• 3.3 TROUBLESHOOTING PROCEDURES

  3
• Fuses

  3
• Power Supply Checks

  3
• 3.3.2.1 Current Measurements

  3
• 3.3.2.2 Com Board

  3
• 3.3.2.3 Glideslope Board

  3
• 3.3.2.4 Nav Board

  3
• Processor Clock Check

  3
• Internal Clock CheckMain Processor

  3
• 3.3.3.2 Internal Clock CheckGPS Processor

  3
• 3.4 STATIC MESSAGES

  3
• 3.5 TESTING FAILURES

  3
• 3.6 EXTERNAL CONNECTORS

  3
• 3.7 CONNECTOR I/O DESCRIPTIONS

  3
• 3.8 BLOCK DIAGRAM

  3
• 4.1 INTRODUCTION

  4
• 4.2 REQUIRED TOOLS

  4
• 4.3 NAV DATA CARD REMOVAL AND INSERTION

  4
• 4.4 UNIT DESIGN

  4
• 4.5 DISASSEMBLY PROCEDURE

  4
• Remove the Top Cover

  4
• Remove the CDU Assembly

  4
• 4.5.2.1 Disassemble the CDU Assembly

  4
• Separate the Main and Nav Chassis

  4
• Remove Faulty Boards from the Main Chassis Top Cavity

  4
• Remove Faulty Boards from the Main Chassis Underside Cavity

  4
• Remove Faulty Boards from the Nav Chassis

  4
• 4.6 REASSEMBLY

  4
• 4.7 MEMORY BATTERY REPLACEMENT

  4
• Remove the Memory Battery

  4
• 5.1 INTRODUCTION

  5
• 5.2 RECOMMENDED TEST EQUIPMENT

  5
• 5.3 TEST SETUP

  5
• 5.4 STANDARD SIGNALS AND TEST LOADS

  5
• VHF Com Transceiver

  5
• 5.4.1.1 Standard Loads

  5
• 5.4.1.2 Standard Signals

  5
• Glideslope

  5
• 5.4.2.1 Standard Loads

  5
• 5.4.2.2 Standard Signals

  5
• NAV Receiver

  5
• 5.4.3.1 Standard Loads

  5
• VOR Standard Signals

  5
• 5.4.4.1 Standard Test Signals

  5
• Localizer Standard Signals

  5
• 5.4.5.1 Standard Test Signals

  5
• 5.5 ALIGNMENT

  5
• 5.6 CALIBRATION

  5
• Com Setup Page Fields

  5
• 5.6.1.1 Com Frequency

  5
• 5.6.1.2 Frequency Spacing

  5
• 5.6.1.3 SQ 250

  5
• 5.6.1.4 SQ 833

  5
• 5.6.1.5 Sidetone

  5
• 5.6.1.6 MIC Gain

  5
• 5.7 TEST PROCEDURES

  5
• Test Mode

  5
• Com Testing

  5
• 5.7.2.1 Power Input Check

  5
• 5.7.2.2 RF Power Out

  5
• 5.7.2.3 Frequency Stability and Tolerance

  5
• 5.7.2.4 Modulation Capability Test

  5
• 5.7.2.5 Carrier Noise Level

  5
• 5.7.2.6 Demodulated Audio Distortion

  5
• 5.7.2.7 Demodulated Audio Response

  5
• Sidetone

  5
• MIC Intercom Test

  5
• Receiver Sensitivity

  5
• TX Interlock

  5
• AGC Test

  5
• Selectivity (25 kHz Mode)

  5
• Selectivity (8.33 kHz Mode)

  5
• Volume Control (Audio Output)

  5
• Audio Distortion Test

  5
• Audio Frequency Response

  5
• Receiver Audio Compressor Test

  5
• Squelch Test

  5
• Frequency Modulation

  5
• Com Remote Transfer Input

  5
• Navigation Receiver Final Tests

  5
• Voice/Ident Audio Output Level

  5
• Voice/Ident Audio Frequency Response

  5
• Voice/Ident Audio Distortion

  5
• VOR AGC

  5
• VOR Audio Sensitivity

  5
• Receiver Quieting

  5
• Ident/Voice Tone Ratio

  5
• Harmonic Distortion

  5
• VOR Flag Sensitivity

  5
• LOC Flag Sensitivity

  5
• VOR/LOC Composite Test

  5
• VOR Course Deviation Sensitivity

  5
• Localizer Course Deviation Sensitivity

  5
• TO-FROM Indicator

  5
• Centering Accuracy

  5
• Course Deviation Accuracy Test

  5
• VOR OBS Bearing Accuracy

  5
• Selectivity

  5
• Spurious Response—VOR/LOC

  5
• Navigation Assembly I/O Tests

  5
• Localizer Course Deviation Test

  5
• To/From Deflection Output Characteristic Test

  5
• To/From Deflection Accuracy Test

  5
• Course Deviation Flag Output Characteristic Test

  5
• Course Deviation Flag Test

  5
• VOR/LOC Super Flag Output Test

  5
• NAV Input Lines

  5
• NAV OBI Outputs

  5
• Nav Serial DME Outputs

  5
• NAV Parallel DME Outputs

  5
• Glideslope Final Tests

  5
• Glideslope Course Deviation Output Characteristic Test

  5
• Course Deviation Deflection Accuracy Test

  5
• Course Deviation Flag Test

  5
• Glideslope Superflag Output Test

  5
• Receiver Sensitivity

  5
• Centering Accuracy

  5
• AGC

  5
• Selectivity (Bandwidth)

  5
• Nose Bandwidth

  5
• Skirt Bandwidth

  5
• Spurious Response

  5
• Status Tests

  5
• Main Board Final Tests

  5
• Push Button Response

  5
• Rotary Knobs

  5
• Map ID and Data Card Test

  5
• Photocell

  5
• Lighting Bus Input

  5
• Memory Battery Voltage

  5
• Display Pattern Test

  5
• Fan Test

  5
• Unit Configuration Test

  5
• GPS Antenna Bias

  5
• GPS Noise

  5
• Satellite Tracking Test

  5
• MAIN Lateral LEFT, RIGHT Outputs

  5
• MAIN Vertical UP, DOWN Outputs

  5
• MAIN To/From Output

  5
• MAIN Lateral Flag Output

  5
• MAIN Vertical Flag Output

  5
• MAIN Lateral Super Flag Output

  5
• MAIN Vertical Super Flag Output

  5
• Annunciate Outputs

  5
• OBI Serial Interface

  5
• Discrete Switch and Altitude Inputs

  5
• ARINC 429 Transmitters and Receivers

  5
• RS232 Ports

  5
• OBS

  5
• 6.1 INTRODUCTION

  6
• 6.2 TABLES

  6
• 7.1 INTRODUCTION

  7
• 7.2 DRAWING LIST

  7
• Com Chassis Nut

  2
• Signal And Load Drawing-J1 (Sheet 1 of 2)

  2
• Signal And Load Drawing-J1 (Sheet 2 of 2)

  2
• Signal And Load Drawing-J2

  2
• Signal And Load Drawing-J6

  2
• Main Board Fuse Locations

  3
• Com Board Fuse Location/F600

  3
• Com Board Fuse Location/F600 (Replaced by R611)

  3
• Nav Board Fuse Locations

  3
• Processor Location (Main Board)

  3
• External Connectors

  3
• 400 Series Block Diagram

  3
• Nav Data Card Installation And Removal

  4
• Memory Battery Location (Main Board)

  4
• 40dB Attenuator Circuit

  5
• Com Setup Page

  5
• R558 (Com Board)

  5
• Test Pages

  5
• Modulation Measurement

  5
• VOR/LOC/GS CDI Test Page

  5
• Main Lighting and Main Analog Test Pages

  5
• GPS Test Page

  5
• Main CDI/OBS Configuration Test Page

  5
• Main Discrete Outputs Test Page

  5
• Main Discrete Inputs Test Page

  5
• Main Status/Loopback Test Page

  5
• Main CDI/OBS Configuration Page

  5
• Sub-Assembly, GNS 430 (Dwg. No. 015-00280-XX, Rev. P)

  7
• Main Chassis Assembly, GNS 430(A) (Dwg. No. 015-00283-00, Rev. Q)

  7
• Nav Chassis Assembly, GNC 400 (Dwg. No. 015-00282-00, Rev. K)

  7
• GNC 4XX CDU Assembly (Sheet 1 of 2) (Dwg. No. 015-00281-XX, Rev. F)

  7
• Sub-Assembly, GNC 420 (Dwg. No. 015-00506-XX, Rev. N)

  7
• Main Chassis Assembly, GNC 420(A) (Dwg. No. 015-00283-01, Rev. J )

  7
• Sub-Assy, GNC 420A (Dwg. No. 015-00837-XX, Rev. A )

  7
• Main Chassis Assembly, GPS 400 (Dwg. No. 015-00283-03, Rev. J)

  7
• Assy Dwg, GPS 400 (Dwg. No. 015-00504-XX, Rev. G)

  7
• Unit Configuration

  1
• Unit Board Power Supply Max Current Allowed

  3
• Com Board Power Supply Tolerances

  3
• Glideslope Board Power Supply Tolerances

  3
• Nav Board Power Supply Tolerances

  3
• Static Messages

  3
• Testing Failures-Main Board

  3
• Testing Failures-COM Board

  3
• Testing Failures-NAV Board

  3
• Testing Failures-Glideslope

  3
• Testing Failures-NAV Receiver

  3
• Channel ID And Frequency

  5
• Sub-Assy, GNS 430 28V, Black (Unit P/N 011-00280-00, Figure 7-1)

  6
• Sub-Assy, GNS 430 14/28V, Black (Unit P/N 011-00280-10, Figure 7-1)

  6
• Sub-Assy, GNS 430 14/28V, Gray (Unit P/N 011-00280-30, Figure 7-1)

  6
• Sub-Assy GNS 430A, 28V, Black (Unit P/N 011-00836-00, Figure 7-1)

  6
• Sub-Assy GNS 430A, 28V, Gray (Unit P/N 011-00836-10, Figure 7-1)

  6
• Main Chassis Assy, GNS 430, 14/28V (Unit P/N 011-00283-10, Figure 7-2)

  6
• Main Chassis, GNS 430, 14/28V, (Unit P/N 011-00283-30, Fig. 7-2)

  6
• Main Chassis Assy, GNS 430, 28V, (Unit P/N 011-00283-00, Fig. 7-2)

  6
• Main Chassis Assy, GNS 430A, 28V (Unit P/N 011-00283-20, Figure 7-2)

  6
• Sub-Assy, CDU, GNS 430 Black (Unit P/N 011-00281-00, Figure 7-4)

  6
• Sub-Assy, CDU, GNS 430, Gray (Unit P/N 011-00281-04, Figure 7-4)

  6
• Sub-Assy, CDU, GNS 430A, Black (Unit P/N 011-00281-00, Figure 7-4)

  6
• Sub-Assy, CDU, GNS 430A, Gray (Unit P/N 011-00281-04, Figure 7-4)

  6
• Sub-Assy, GNC 420, 28V, Black (Unit P/N 011-00506-00, Figure 7-5)

  6
• Sub-Assy, GNC 420, 14/28V, Black (Unit P/N 011-00506-10, Figure 7-5)

  6
• Sub-Assy, GNC 420, 14/28V, Gray (Unit P/N 011-00506-30, Fig 7-5)

  6
• Sub-Assy, GNC 420A, 28V, Black (P/N 011-00837-00, Figure 7-8)

  6
• Sub-Assy, GNC 420A, 28V, Gray (Unit P/N 011-00837-10, Figure 7-8)

  6
• Main Chassis Assy, GNC 420, 28V (P/N 011-00283-01, Figure 7-6)

  6
• Main Chassis Assy, GNC 420, 14/28V (Unit P/N 011-00283-11, Fig 7-6)

  6
• Sub-Assy, CDU, GNC 420, Black (Unit P/N 011-00281-01, Figure 7-4)

  6
• Sub-Assy, CDU, GNC 420, Gray (Unit P/N 011-00281-05, Figure 7-4)

  6
• Sub-Assy, CDU GNC 420A, Black (Unit P/N 011-00281-01, Figure 7-4)

  6
• Sub-Assy, CDU, GNC 420A, Gray (Unit P/N 011-00281-05, Figure 7-4)

  6
• Sub-Assy, GPS 400, 14/28V Black (Unit P/N 011-00504-00, Figure 7-1)

  6
• Sub-Assy, GPS 400, 14/28V Gray (Unit P/N 011-00504-10, Figure 7-1)

  6
• Nav Chassis Sub-Assy, GPS 400 (Unit P/N 011-00281-03, Fig 7-7)

  6
• Sub-Assembly, CDU, GPS 400, Black (Unit P/N 011-00281-03, Fig 7-4)

  6
• Sub-Assembly, CDU, GPS 400, Gray (Unit P/N 011-00281-06, Fig 7-4)

  6