L3 FA5000 Component Maintenance Manual With Illustrated Parts List page 126

Table 205. Main Processor Troubleshooting Chart (Continued)
Item Function Type
ID
Audio I/P − Power
E020
− CAM
and
Pre
Amp
Power
Audio I/P − Power
F021 Audio O/P HI
− Ana-
log
Audio
Monit-
or O/P
Ch HI
Audio O/P HI
F022 Audio O/P LO
− Ana-
log
Audio
Monit-
or O/P
Ch LO
Audio O/P LO
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AVIATION RECORDERS
COMPONENT MAINTENANCE MANUAL
Model FA5000
Failure Local Effect
Mode
The CAM The power is
and Pre Amp note available
Power are to the Cockpit
open Area Micro-
phone or the
Preamplifier
Power
The CAM The output
and Pre Amp voltage is not
Power are disrupted and
shorted the system
/FPGA/DAP
software is not
alerted
The Analog The high out-
Audio Monit- put is not
or O/P Ch HI scaled up by
is open the output
stage and
does not pass
through the
output trans-
former
The Analog The high out-
Audio Monit- put is not
or O/P Ch HI scaled up by
is shorted the output
stage and
does not pass
through the
output trans-
former
The Analog The high out-
Audio Monit- put is not
or O/P Ch scaled up by
LO is open the output
stage and
does not pass
through the
output trans-
former
The Analog The high out-
Audio Monit- put is not
or O/P Ch scaled up by
LO is shor- the output
ted stage and
does not pass
through the
output trans-
former
Next Effect End Effect
Loss of Cockpit Loss of Cockpit Area Micro-
Area Micro- phone & Preamplifier Power
phone &
Preamplifier
Power
The system Loss of Cockpit Area Micro-
software is un- phone & Preamplifier Power
able to disrupt
this output via
control pin from
the FPGA
The Analog Loss of the Analog Audio Mon-
Audio Monitor itor Output Channel HI
Output Chan-
nel HI does not
function
The Analog Loss of the Analog Audio Mon-
Audio Monitor itor Output Channel HI
Output Chan-
nel HI does not
function
The Analog Loss of the Analog Audio Mon-
Audio Monitor itor Output Channel LO
Output Chan-
nel LO does
not function
The Analog Loss of the Analog Audio Mon-
Audio Monitor itor Output Channel LO
Output Chan-
nel LO does
not function
23–70−40
FDR Function Testing & Fault Isolation
Rev. 03 Page 230
Rev.04 Page 230
Feb. 27/13
Mar. 21/14