COMPONENT MAINTENANCE MANUAL
AVIATION PRODUCTS
Model FA5000
Rev. 02 Page 143
July 21/17
Testing & Fault Isolation
23–70
−
30
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Table 104 Main Processor Troubleshooting Chart (Continued)
Item
ID
Function Type
Failure
Mode
Local Effect
Next Effect
End Effect
B011
−
Analog
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
−
Analog
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
−
Analog
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 continuous
tone test from
the DSP
No audio tone
test or a con-
tinuous tone
test is per-
formed
No Effect
B014
−
Analog
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
Audio I/P
Audio I/P
Tone Test 1
is shorted
Audio CODEC
receives/re-
cords either no
audio tone test
or a continuous
tone test from
the DSP
No audio tone
test or a con-
tinuous tone
test is per-
formed
No Effect
B012
−
Analog
Audio
Tone
Test 2
Audio I/P
Audio I/P
Tone Test 2
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 2
is shorted
Audio CODEC
receives/re-
cords either no
audio tone test
or a continuous
tone test from
the DSP
No audio tone
test or a con-
tinuous tone
test is per-
formed
No Effect
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