COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
FA2100CVR
Rev. 15 Page 167
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) Audio Out Monitor
Record simulated 1000 Hz data for each channel 1,2,3 and 4 and verify amplitudes
by part number:
Example report message(s):
08:26:43 PASSED Audio Out Monitor 1000 Hz (Expected 2.45 +/
−
20 percent
VRMS) Results = HQ1 2.319 /HQ2 2.338 /HQ3 2.317 /HQC 2.355 VRMS
(14) 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
(15) Shutdown
Remove recorder power and verify recorder continues to operate for > 9 and < 10
minutes after power is removed and shutdown is terminated following a push to test.
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 CVDR Fault (Expected CVDR fault to occur) Res-
ult = CVDR Fault
08:56:27 PASSED Shutdown Push
−
to
−
Test (Expected 1000 Hz frequency)
Results = 999.9 Hz
The document reference is online, please check the correspondence between the online documentation and the printed version.
