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COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
FA2100CVR
Rev. 15 Page 122
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.
08:42:04 PASSED Crosstalk (Audio) 1000 Hz 1.0 ref (Expected Driven
−
Non
−
Driven <
−
40 dB) Results = HQ1
−
304.8 /HQ2
−
127.4 /HQ3 11.1 /HQC
−
104.4
/SQV 11.4 /SQC
−
72.0 dBV
08:42:19 PASSED Crosstalk (Audio) 1000 Hz 1.0 ref (Expected Driven
−
Non
−
Driven <
−
40 dB) Results = HQ1
−
304.9 /HQ2
−
304.9 /HQ3
−
111.7 /HQC 11.1
/SQV
−
72.4 /SQC 11.4 dBV
(11) Crosstalk Data
NOTE:
Test for combination recorders where both flight data and voice data
are being recorded.
Perform a Channel Balance to determine and store results for each channel 1,2,3
and 4.
Record 6000 Hz simulated rotor data and simulated GMT 429 and calculate channel
results minus channel balance results. Verify difference is less than
−
34 dB
Example report message(s):
08:43:07 PASSED Channel Bal 1000 Hz 1.0 ref (All within 3 dB) Results = HQ1
11.2 /HQ2 11.2 /HQ3 11.0 /HQC 11.1 /SQV1 11.0 /SQV2 11.3 /SQV3 11.4
/SQC 11.5 dBV
08:43:23 PASSED Crosstalk (Data) 6000 Hz 1.0 ref (Expected Crosstalk
−
Channel Bal <
−
34 dB) Results = HQ1
−
304.9 /HQ2
−
125.7 /HQ3
−
304.8 /HQC
−
49.8 /SQV
−
83.4 /SQC
−
82.8 dB
(12) Audio Out Monitor
Record simulated 1000 Hz data for each channel 1,2,3 and 4 and verify amplitudes
by part number:
Part# 2100
−
10X0
= 2.45 +/
−
20%
Audio Out level (VRMS)
Part# 2100
−
30X3
−
00
= 2.45 +/
−
20%
Audio Out level (VRMS)
Part# S200
−
XXX
−
XX
= 4.6
−
8.4
Audio Out level (VRMS)
Example report message(s):
08:45:17 PASSED Audio Out Monitor 1000 Hz (Expected 0.358 +/
−
20 percent
VRMS) Results = HQ1 0.322 /HQ2 0.323 /HQ3 0.321 /HQC 0.319 VRMS
The document reference is online, please check the correspondence between the online documentation and the printed version.