COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
Model FA5000
Rev. 04 Page 123
Feb. 27/14
Testing & Fault Isolation
23–70−40
Use or disclosure of information on this sheet is subject to
the restrictions on the cover page of this document.
08:08:12 Frequency Resp 5000 Hz 0.5 ref Results = HQC 4.9 dBV
08:08:23 Frequency Resp 6000 Hz 0.5 ref Results = HQC 4.9 dBV
08:08:23 PASSED Frequency Resp (All within 6 dB)
(9) Signal to Noise and Distortion
Record simulated data at each of the following frequencies once at 1.0 reference
level and again at 1/10 reference). Verify HQ data is > 24.0 dB and SQ data is >
20.0 dB.
Return To Service Frequencies:
Frequencies for HQ1, HQ2, HQ3, HQCAM, SQV1, and SQCAM are:
150, 1000 and 3500 Hz.
Frequencies for HQCAM only are: 5000 and 6000 Hz.
Selectable Test Options Frequencies:
Frequencies for HQ1, HQ2, HQ3, HQCAM, SQV1, and SQCAM are:
150, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500
and 3500 Hz.
Frequencies for HQCAM and SQCAM only is 3150 Hz.
Frequencies for HQCAM only are:
4148 and 6000 Hz.
Example Return to Service report message(s):
11:24:20 PASSED SN+D 150 Hz 1.0 ref (Expected HQ > 24.0 dB SQ > 20.0 dB)
Results = HQ1 34.6 /HQ2 34.4 /HQ3 34.8 /HQC 36.4 /SQV1 30.9 /SQV2 31.0
/SQV3 30.6 /SQC 31.4 dB
11:26:44 PASSED SN+D 1000 Hz 1.0 ref (Expected HQ > 24.0 dB SQ > 20.0 dB)
Results = HQ1 27.0 /HQ2 26.9 /HQ3 26.7 /HQC 32.4 /SQV1 23.3 /SQV2 23.0
/SQV3 23.3 /SQC 23.3 dB
11:29:09 PASSED SN+D 3500 Hz 1.0 ref (Expected HQ > 24.0 dB SQ > 20.0 dB)
Results = HQ1 30.6 /HQ2 30.2 /HQ3 30.4 /HQC 30.3 /SQV1 25.0 /SQV2 25.2
/SQV3 24.9 /SQC 25.5 dB
11:30:35 PASSED SN+D 5000 Hz 1.0 ref (Expected HQC > 24.0 dB) Results = HQC
30.6 dB
11:31:07 PASSED SN+D 6000 Hz 1.0 ref (Expected HQC > 24.0 dB) Results = HQC
27.7 dB
NOTE
: Running the Signal to Noise and Distortion test in the Selectable
Test mode will perform additional tests at 200, 250, 315, 400,
500, 630, 800, 1250, 1600, 2000, 3150 and 4000 Hz.
The document reference is online, please check the correspondence between the online documentation and the printed version.
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