L3 Communications A200S

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COMPONENT MAINTENANCE MANUAL

AVIATION RECORDERS

FAIRCHILD MODEL A200S SSCVR

23Ć70Ć03

Jan. 31/95

Initial Issue

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Main Page

Before Applying Power3
Record of Revisions11
Service Bulletin List13
List of Effective Pages18
Table of Contents23
Subject/Description Page27
List of Illustrations28
General31
Maintenance Philosophy31
Table 1. Shop Verification34
Table 2. Modification Descriptions for Model A200S Recorder Unit34
Description and Operation37
Figure 1. A200S Solid-State Cockpit Voice Recorder (SSCVR)37
System Functional Description38
Figure 2. Major Components40
Table 1. Specifications for the Model A200S42
Figure 3. A200S 30-Minute and 120-Minute Recording Scheme43
Built-In-Test-Equipment (BITE)44
Specifications for A200S45
Applicable Documents45
Physical Characteristics46
Figure 4. A200S Outline & Dimensions47
Electrical Characteristics48
Environmental Characteristics49
Crash-Survival Characteristics49
Installation Accessories50
SSCVR Mount, P/N 178E0919-0050
SSCVR Mount, P/N 9300-34350
Figure 5. Outline and Dimensions, P/N 178E0919-00 SSCVR Mount51
Figure 6. Outline and Dimensions, P/N 9300-343 SSCVR Mount with Vibration52
Technical Description53
Figure 7. A200S Functional System Block Diagram55
Data Monitoring56
Storage Capacity56
Cessation of Recording59
Installation60
Control Unit Wiring60
Theory of Operation61
A200S Theory of Operation61
Aircraft Interface (ACI) PWA, P/N 205E0975-XX61
Main Processor PWA, P/N 205E0976-XX62
Flash Crash Survivable Store Unit (FCSSU), P/N 253E1296-XX62
PWA Theory of Operation62
Aircraft Interface PWA, P/N 205E0975-XX63
(A) RF Barrier63
(B) Fault Drive63
(C) Lightning Protection63
(D) Signal Conditioning, Decoding, and Lightning Protection63
(E) Power Supply64
Main Processor PWA, P/N 205E0976-XX64
(A) Analog Front End/Test Function64
(B) Audio Processor64
(C) Store Processor65
(D) Memory Interface65
(E) ATE Interface65
Support Equipment66
Cockpit Voice Recorder System A860 Test Panel66
Figure 9. Cockpit Voice Recorder System A860 Test Panel, P/N 9300A86066
A200S/A860 Test Panel Cable Assembly P/N 024E1122-0067
A200S/A860 Test Panel Cable Assembly, P/N 024E1122-0067
Figure 10. A200S/A860 Test Panel Cable Assembly, P/N 024E1122-0067
Digital Audio Playback Unit, P/N 17TES025069
Figure 11. Digital Audio Playback (DAP) Unit, P/N 17TES025069
Table 2. DAP Unit Audio Outputs69
Testing and Troubleshooting71
General71
Maintenance Philosophy72
A200S Recorder In-Service Checkout72
Test Equipment Required73
FCSSU Alignment Tool, P/N 980E1372-0073
A200S Operational Test Procedure74
Table 101. Recommended Standard Test Equipment74
Figure 101. A200S Test Setup77
Figure 102. A200S Operational Test Setup78
Table 102 A200S Operational Test Procedure79
A200S Profiler Kit, P/N 147E1616-0092
Description92
Test Equipment Requirement92
Test Equipment Setup92
A200S Profile Cable Assembly, P/N 024E1616-0092
Figure 103. A200S Test Setup for Profiler Cable Kit , P/N 147E1616-0097
Figure 104. A200S Main Processor PWA98
Table 103. A200S System Level Troubleshooting99
Fault Isolation Procedure100
Expected Results101
Test Description102
Figure 303. Removal of A200S Main Processor PWA111
Figure 304. Disassembly of A200S Front Panel Assembly113
Figure 305. Removal of Aircraft Interface PWA and Flash Crash Survivable Store Unit116
(Fcssu)116
Table 401. Cleaning Materials Required117
Cleaning Procedures117
Figure 401. Underwater Locating Device (ULD) Beacon Water Switch Location119
Electrical Inspection122
Required Materials125
Figure 701. Exploded View of A200S Front Panel Assembly127
Figure 702. Installation and Alignment of FCSSU Using Alignment Tool130
Figure 703. Installation of Aircraft Interface PWA and FCSSU132
Figure 704. Installation and Alignment of Main Processor PWA135
Figure 705. Installation of Main Processor (MP) PWA137
Figure 706. Shipping Container139
Fits and Clearances141
Figure 801. A200S Outline & Dimensions142
Figure 802. Outline and Dimensions, P/N 178E0919-00 SSCVR Mount146
Figure 803. Outline and Dimensions, P/N 9300-343 SSCVR Mount W/Vibr. Isol147
Table 901. A200S Special Tools and Test Fixtures149
Figure 901. A860 Test Panel, P/N 9300A860 and A200S/A860 Test Panel Cable Assembly 024E1122-00151
Figure 902. A200S/A860 Test Panel Cable Assembly, P/N 024E1122-00, Wiring Diagram152
Table 902. DAP Audit Outputs153
Figure 903. Digital Audio Playback Unit, P/N 17TES0250155
Figure 904. A200S Typical Test Setup156
Figure 905. FCSSU Alignment Tool, P/N 980E1372-00157
Figure 906. A200S Cable Profiler Assembly 024E1616-00158
Figure 907. A200S Profiler PWA I/O Connections159
Illustrated Parts List161
Numerical Index162
Configuration Matrix168
System Block Diagram, P/N 905E1000-33184
Table B-1. List of Acronyms199

L3 Communications A200S - Page 4

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