COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
FA2100CVR
Rev. 15 Page 123
Apr. 14/16
Testing & Fault Isolation
23–70–04
Use or disclosure of information on this sheet is subject
to the restrictions on the cover page of this document.
(13) Signal To No Signal
Record simulated 1000 Hz data for each channel 1,2,3 and 4 and store results then
record no data for channels 1,2,3 and 4 and compare differences between signal
data results and no signal data results. Verify difference is less than
−
48 dB.
Example report message(s):
08:47:12 PASSED Sig To No Sig 0 Hz 1.0 ref (Expected HQ <
−
48 dB SQ <
−
40 dB) Results = HQ1
−
304.9 /HQ2
−
122.6 /HQ3
−
108.4 /HQC
−
115.4 /SQV1
−
82.7 /SQV2
−
82.2 /SQV3
−
80.7 /SQC
−
85.0 dB
(14) Shutdown
Part 1 – enable delayed shutdown.
Part 2 – verify shutdown is detected (CVR fault set) after > 9 and < 10 minutes.
Part 3 – verify shutdown is terminated following a push to test and recording is re-
sumed.
Example report message(s):
08:47:13 PASSED Shutdown Initialization (Shutdown issued
−
Please wait
9
−
10 minutes...)
08:56:14 PASSED Shutdown CVR Fault (Expected CVR fault to occur) Result
= CVR Fault
08:56:27 PASSED Shutdown Push
−
to
−
Test (Expected 1000 Hz frequency)
Results = 999.9 Hz
(15) Capacitor
Power off recorder and verify recorder is still powered after 200 milliseconds but not
powered after 2 seconds.
Example report message(s):
08:56:32 PASSED Capacitor
−
GSE powered after 200 milliseconds but not
after 2 seconds
The document reference is online, please check the correspondence between the online documentation and the printed version.