L3 FA5000 User Manual

COMPONENT MAINTENANCE MANUAL
AVIATION PRODUCTS
Model FA5000
Rev. 02 Page 130
July 21/17
Testing & Fault Isolation
23–70−30
Use or disclosure of information on this sheet is subject to
the restrictions on the cover page of this document.
7. AIRCRAFT INTERFACE
Table 102. Aircraft Interface Troubleshooting Chart
Pin
ID
Signal Type Signal Function Failure Mode Local Effect End Effect
01 Power O/P 115_VAC_Out_Hot
(Not Used) (AC_ Re-
turn_In_757A)
The signal path
is open
Loss of 115 VAC (No
Power)
Loss of FA5000 function-
ality
01 Power O/P 115_VAC_Out_Hot
(Not Used) (AC_ Re-
turn_In_757A)
The signal path
is shorted
Degraded EMI/De-
graded Performance
Degraded EMI/Degraded
Performance
02 Power I/P 115 VAC Power Input
(Hot)
The signal path
is open
Loss of 115 VAC (No
Power)
Loss of FA5000 function-
ality
02 Power I/P 115 VAC Power Input
(Hot)
The signal path
is shorted
Loss of 115 VAC (No
Power)
Loss of FA5000 function-
ality
03 Power Rtn AC Or DC Power Re-
turn
The signal path
is open
Loss of AC or DC
Power
Loss of FA5000 function-
ality
03 Power Rtn AC Or DC Power Re-
turn
The signal path
is shorted
Degraded EMI/De-
graded Performance
Degraded EMI/Degraded
Performance
04 Power I/P Indicator Power Input The signal path
is open
Loss of Indicator
Power
Loss of power input to
the CVDR
04 Power I/P Indicator Power Input The signal path
is shorted
Loss of Indicator
Power
Loss of power input to
the CVDR
05 Audio O/P
(−)
Audio Monitor Output
(Low)
The signal path
is open
No audio (voice) is
present
Unable to monitor audio
05 Audio O/P
(−)
Audio Monitor Output
(Low)
The signal path
is shorted
No audio (voice) is
present
Unable to monitor audio
06 Audio O/P
)
Audio Monitor Output
(High)
The signal path
is open
No audio (voice) is
present
Unable to monitor audio
06 Audio O/P
)
Audio Monitor Output
(High)
The signal path
is shorted
No audio (voice) is
present
Unable to monitor audio
07 Discrete/
Ground
Record Enable (B) The signal path
is open
Record Enable B
Signal not grounded
Audio is not recorded;
partial loss of CVDR
functionality
07 Discrete/
Ground
Record Enable (B) The signal path
is shorted
No Effect No Effect
08 Discrete I/P Record Enable (A) The signal path
is open
Record Enable A
Signal not grounded
Audio is not recorded
08 Discrete I/P Record Enable (A) The signal path
is shorted
Loss of ability to dis-
able recording
The recorder continu-
ously records
09 Power 28 VDC Power Input
(Hot)
The signal path
is open
Loss of Pos 28 VDC Loss of CVDR functional-
ity
09 Power 28 VDC Power Input
(Hot)
The signal path
is shorted
Loss of Pos 28 VDC Loss of CVDR functional-
ity
10 Discrete I/P Stop CVR Recording The signal path
is open
The CVR stays in re-
cord mode
The CVR stays in record
mode
10 Discrete I/P Stop CVR Recording The signal path
is shorted
The recorder stops
recording voice after
10 minutes but keeps
recording data
Stops audio recording
function after 10 minutes
The document reference is online, please check the correspondence between the online documentation and the printed version.

L3 FA5000 Specifications

General

Brand	L3
Model	FA5000
Category	Voice Recorder
Language	English