COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
Model FA5000
Rev. 04 Page 101
Feb. 27/14
Testing & Fault Isolation
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Use or disclosure of information on this sheet is subject to
the restrictions on the cover page of this document.
CVR TESTING AND TROUBLESHOOTING
1.
GENERAL
This section provides operational level testing procedures for the Model FA5000CVDR
Cockpit Voice and Data Recorder when using the CVDR Automated Test Station (CATS)
software, p/n: 17TES0420. The CATS software is contained on the L
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3AR Read-Out
Center/7 (ROC/7), p/n: 17TES0700 and is used in conjunction with the L
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3AR Recorder
Interface Unit (RIU), p/n: 17TES0710. Testing for the Model FA5000 CVR is based upon
an automated operational test procedure. The automated test procedure may serve as
an acceptance criteria for the unit, as well as provide pointers to probable malfunctioning
assemblies in the event that the unit is not functioning properly.
The Model FA5000CVDR is considered an “ON CONDITION LRU.” This Recorder does
not require any special periodic maintenance tasks to be performed, except for the ULB
test procedure.
CAUTION: THE MODEL FA5000CVDR’s PRINTED CIRCUIT ASSEMBLIES CONTAIN DE-
VICES SENSITIVE TO ELECTROSTATIC DISCHARGE (ESD). PERSONNEL
HANDLING A PRINTED CIRCUIT BOARD SHOULD COMPLY WITH PROPER
ESD HANDLING PROCEDURES; FAILURE TO DO SO MAY RESULT IN DAM-
AGE TO THE ESD SENSITIVE DEVICES RENDERING THE PRINTED CIRCUIT
BOARD USELESS. PRIOR TO HANDLING A PRINTED CIRCUIT BOARD, EN-
SURE PROPER PERSONNEL GROUNDING TECHNIQUES ARE USED. ALSO,
ENSURE THAT ALL CIRCUIT BOARDS ARE PLACED INTO STATIC SHIELD-
ING CONDUCTIVE BAGS WHEN HANDLING OR STORING.
2.
MAINTENANCE PHILOSOPHY
A.
Model FA5000CVDR
The EUROCAE ED
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112 compliant Model FA5000CVDR has been designed as a mainte-
nance-free unit. The Model FA5000CVDR is considered an “ON CONDITION LRU.”
Each of its printed wiring assemblies (PWAs) makes extensive use of surface mount
technology (SMT). The repair of a PWA containing SMT devices requires specialized
training and factory equipment, along with special troubleshooting and soldering tech-
niques; therefore, L-3 Communications, Aviation Recorders has deemed that PWAs con-
taining SMT devices are not to be repaired in the field. As a result, the Model FA5000CV-
DR’s maintenance philosophy is to level-2 board replacement.
The FA5000CVDR, has three field replaceable assemblies: (1) the Aircraft Interface PWA,
which contains the power and input circuits; (2) the Main Processor PWA, which condi-
tions the audio streams into digital formats for recording and contains the processing and
The document reference is online, please check the correspondence between the online documentation and the printed version.