L3 FA5000 Component Maintenance Manual With Illustrated Parts List page 122

Table 205. Main Processor Troubleshooting Chart (Continued)
Item Function Type
ID
Non−Volatile Memory
A007 BITE Task
−
SEEP-
ROM
A007 BITE Task
−
SEEP-
ROM
A007 BITE Task
−
SEEP-
ROM
A008 Timing
− RTC
Timing
Timing
B009 Audio I/P
− Ana-
log
Audio
Input 1
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AVIATION RECORDERS
COMPONENT MAINTENANCE MANUAL
Model FA5000
Failure Local Effect
Mode
Electrical In- Software glitch
terference flips data bits,
causing data
corruption
such as lost,
missing or
scrambled
data
Loss of The SEEP-
Power ROM fails: Un-
able to perform
BITE Test
Over/Under The SEEP-
Voltage ROM fails: Un-
able to perform
BITE Test
Electrical In- Software glitch
terference flips data bits,
causing data
corruption
such as lost,
missing or
scrambled
data
Loss of The Real Time
Power Clock fails: Un-
able to set/get
the date and
time
Over/Under The Real Time
Voltage Clock fails: Un-
able to set/get
the date and
time
Electrical In- Software glitch
terference flips data bits,
causing data
corruption
such as lost,
missing or
scrambled
data
Audio I/P Ch No Audio to
1 is open Ch 1
Next Effect End Effect
The MP PWA The CVDR does not operate
does not oper- properly and may have corrup-
ate properly ted data
and may have
corrupted data
Status of the Status of the CVDR is not cur-
CVDR is not rent and the Fault Log is not
current and the updated
Fault Log is not
updated
Status of the Status of the CVDR is not cur-
CVDR is not rent and the Fault Log is not
current and the updated
Fault Log is not
updated
The MP PWA The CVDR does not operate
does not oper- properly and may have corrup-
ate properly ted data
and may have SEEPROM resets and is able
corrupted data to keep track of the current
status of the recorder and
manage the Fault Log
The CVDR has The CVDR has no valid time
no valid time stamp or date
stamp or date
The CVDR has The CVDR has no valid time
no valid time stamp or date
stamp or date
The CVDR The CVDR does not have the
does not have correct time stamp and date
the correct time
stamp and resumes operating with the de-
date faulted time and date of the
next power cycle
Ch 1 is unable Ch 1 is unable to record audio
to record audio
23–70−40
FDR Function Testing & Fault Isolation
Rev. 03 Page 226
Rev.04 Page 226
NOTE: The
NOTE: The RTC
Feb. 27/13
Mar. 21/14