User's Manual
Table Of Contents
- Introduction
- System Description
- 1. Purpose of Equipment
- 2. Equipment Covered
- 3. Equipment Description
- A. Applicable Documents
- B. Reference Documents
- C. Equipment Specifications
- D. Mechanical Description
- E. Electrical Description
- F. System Interface Descriptions
- G. User Interfaces
- (1) Stand-Alone Mode User Interfaces
- (2) Collins Cooperative Mode User Interfaces
- (3) Honeywell Combined Mode User Interfaces
- (4) Selective Mode User Interfaces
- (5) Multi-Channel Configurations
- (6) ISDN Circuit-Switched Data Interface
- (7) RS-232 Interface
- (8) Ethernet Data Interface
- (9) ISDN S/T Interface
- (10) Maintenance Port Interface
- H. Initiated-Self-Test
- I. Owner Requirements Table
- 4. Inmarsat System Overview
- 5. HSD Modes and Configuration Descriptions
- System Operation
- 1. Introduction
- 2. Activating HSD Transceivers
- 3. Configuring HSD Systems
- 4. Using the HSD System
- Installation
- 1. Introduction
- 2. Advisories
- 3. Pre-Installation Inspection
- 4. Unpacking and Inspecting Equipment
- 5. Cabling and Connector Requirements
- 6. ARINC 600 Trays and Connectors
- 7. Mechanical Installation
- 8. Electrical Installation
- 9. Outline/Installation and Interconnection/Contact Assignment Diagrams
- Test and Fault Isolation
- 1. Introduction
- 2. Operational and Diagnostic Testing
- 3. Troubleshooting and Fault Isolation
- 4. Adjustment/Alignment Procedures
- 5. Modification History
- Maintenance and Repair
- 1. General
- 2. Maintenance
- 3. Repair
- 4. Instructions for Continued Airworthiness, FAR 25.1529
- Appendix A: Inmarsat Satellite Beam Coverage
- Appendix B: Troubleshooting Checklist
- Appendix C: RJ-45 Cable Termination Details
- Appendix D: Installation Checklist
- Appendix E: Record of Accomplishment
- Appendix F: RF Splitter
Page 4–81
18 September 2007
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-128 High-speed Data Terminal
3. Troubleshooting and Fault Isolation
This section provides troubleshooting procedures for HSD units experiencing faults during the
commissioning process or previously operational units now considered as “not working”.
Troubleshooting procedures require data obtained using the Maintenance Utility Program
feature of the HSD units. Refer to
"HSD Maintenance Utility Program" on page 4-3 for specific
instructions on how to access and use the Maintenance Port and Maintenance Utility Program
of the unit.
A. Troubleshooting Principles
(1) Non-specific Complaints
When troubleshooting units with non-specific complaints, complete all system
verification and functional tests in
"Operational and Diagnostic Test Procedures" on
page 4-48. Document whether the unit passes or fails each test.
If the unit passes all tests and no fault is discovered, all associated equipment and
aircraft wiring should be tested.
If the unit fails a specific test, isolate the actual fault or faults by performing
troubleshooting procedures provided in this section.
(2) Specific Complaints
When troubleshooting units with specific complaints, service personnel may choose
not to complete some or all of the diagnostic tests and proceed directly to the
applicable troubleshooting and fault isolation procedure provided in this section.
B. Equipment Required
Equipment required for troubleshooting and fault isolation is the same as the equipment
required for test purposes as listed in page
2.
C. Troubleshooting Aids
This section presents examples of maintenance screens and troubleshooting tables to
assist in troubleshooting and fault isolation activities. The exact screen display may vary
depending on the version of the unit’s operational software and installation configuration
mode.
Note: The screens used in the figures presented in this section may have been edited for
clarity and for illustrative purposes.
(1) Fault Isolation Screen Displays
Figure 4–48 to Figure 4–54 provide example maintenance screens for reference and
illustration purposes.