L3 FA5000 Component Maintenance Manual With Illustrated Parts List page 123

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