COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
Model FA5000
Rev. 03 Page 227
Feb. 27/13
FDR Function Testing & Fault Isolation
23–70
−
40
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the restrictions on the cover page of this document.
Table 205. Main Processor Troubleshooting Chart (Continued)
Item
ID
Function Type
Failure
Mode
Local Effect
Next Effect
End Effect
Audio I/P
Audio I/P Ch
1 is shorted
No Audio to
Ch 1
Ch 1 is unable
to record audio
Ch 1 is unable to record audio
B010
−
Ana-
log
Audio
Input 2
Audio I/P
Audio I/P Ch
2 is open
No Audio to
Ch 2
Ch 2 is unable
to record audio
Ch 2 is unable to record audio
Audio I/P
Audio I/P Ch
1 is shorted
No Audio to
Ch 2
Ch 2 is unable
to record audio
Ch 2 is unable to record audio
B011
−
Ana-
log
Audio
Input 3
Audio I/P
Audio I/P Ch
3 is open
No Audio to
Ch 3
Ch 3 is unable
to record audio
Ch 3 is unable to record audio
Audio I/P
Audio I/P Ch
3 is shorted
No Audio to
Ch 3
Ch 3 is unable
to record audio
Ch 3 is unable to record audio
B012
−
Ana-
log
Audio
Input 4
Audio I/P
Audio I/P Ch
4 is open
No Audio to
Ch 4
Ch 4 is unable
to record audio
Ch 4 is unable to record audio
Audio I/P
Audio I/P Ch
4 is shorted
No Audio to
Ch 4
Ch 4 is unable
to record audio
Ch 4 is unable to record audio
B013
−
Ana-
log
Audio
Tone
Test 0
Audio I/P
Audio I/P
Tone Test 0
is open
Audio CODEC
is unable to re-
ceive/record
audio tone test
from the DSP
No audio tone
test is per-
formed
No Effect
Audio I/P
Audio I/P
Tone Test 0
is shorted
Audio CODEC
receives/re-
cords either no
audio tone test
or a continu-
ous tone test
from the DSP
No audio tone
test or a con-
tinuous tone
test is per-
formed
No Effect
B014
−
Ana-
log
Audio
Tone
Test 1
Audio I/P
Audio I/P
Tone Test 1
is open
Audio CODEC
is unable to re-
ceive/record
audio tone test
from the DSP
No audio tone
test is per-
formed
No Effect
Rev.04 Page 227
Mar. 21/14
The document reference is online, please check the correspondence between the online documentation and the printed version.
