L3 FA5000, Component Maintenance Manual With Illustrated Parts List

Page: 115 / 202

COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
Model FA5000
Rev. 03 Page 219
Feb. 27/13
FDR Function Testing & Fault Isolation
23–70
−
40
Use or disclosure of information on this sheet is subject to
the restrictions on the cover page of this document.
Table 204. Aircraft Interface Troubleshooting Chart (Continued)
Pin
ID Signal Type Signal Function Failure Mode Local Effect End Effect
27 ARINC 429
O/P (­) ARINC 429 Output
Low The signal path is
shorted Loss of ability to record
ARINC 429 Low signal
data Unable to record
ARINC 429 Low signal
data
28 ARINC 429
O/P (+) ARINC 429 Output
High The signal path is
open Loss of ability to record
ARINC 429 High signal
data Unable to record
ARINC 429 High signal
data
28 ARINC 429
O/P (+) ARINC 429 Output
High The signal path is
shorted Loss of ability to record
ARINC 429 High signal
data Unable to record
ARINC 429 High signal
data
29 Discrete FDR Input Data Rate
Program A The signal path is
open Only 64, 128 or 1024
Wps rates available The Main Processor
may generate an FDR
fault depending upon
the rate
29 Discrete FDR Input Data Rate
Program A The signal path is
shorted Only 256 or 512 Wps
rates available The Main Processor
may generate an FDR
fault depending upon
the rate
30 Discrete FDR Input Data Rate
Program B The signal path is
open Only 64, 256 or 1024
Wps rates are available The Main Processor
may generate an FDR
fault depending upon
the rate
30 Discrete FDR Input Data Rate
Program B The signal path is
shorted Only 128 and 512 Wps
rates are available The Main Processor
may generate an FDR
fault depending upon
the rate
31 Ground Res Area Microphone
Power Shield Ground The signal path is
open No Effect No Effect
31 Ground Res Area Microphone
Power Shield Ground The signal path is
shorted No Effect No Effect
32 Differential
ARINC429 (­) ARINC 429 Input Low The signal path is
open Loss of ability to record
ARINC 429 Low signal
data Unable to record
ARINC 429 Low signal
data
32 Differential
ARINC429 (­) ARINC 429 Input Low The signal path is
shorted Loss of ability to record
ARINC 429 Low signal
data Unable to record
ARINC 429 Low signal
data
33 Differential
ARINC717 (­) FDR Data Input
ARINC 717 Low The signal path is
open Loss of ability to ac­
quire coherent FDR
Data Input (ARINC 717
Low) Unable to record good
ARINC 717 data input
from the Main Pro­
cessor
33 Differential
ARINC717 (­) FDR Data Input
ARINC 717 Low The signal path is
shorted Loss of ability to ac­
quire coherent FDR
Data Input (ARINC 717
Low) Unable to record good
ARINC 717 data input
from the Main Pro­
cessor
34 Differential
ARINC717 (­) FDR Data Output
ARINC 717 Low The signal path is
open Disrupted FDR Data
Output (ARINC 717
Low) echoed back to
FDAU Disrupted FDR Data
Output (ARINC 717
Low) echoed back to
FDAU
Rev.04 Page 219
Mar. 21/14 The document reference is online, please check the correspondence between the online documentation and the printed version.