COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
FA2100CVR
Rev. 15 Page 19
Apr. 14/16
Description and Operation
23–70–04
Use or disclosure of information on this sheet is subject
to the restrictions on the cover page of this document.
I.
Data Reproduction
A standard cassette, reel-to-reel tape, or digital audio tape recorder can be used to
produce a high fidelity copy of the Model FA2100CVR recorded data. To do so, the
inputs of the copy recorder are connected to any one of the output RCA phono jacks
located on the Portable Interface (PI) Unit’s PI Audio Read-out Cable, p/n
17TES0051. Depending upon the type of recorder used for copying, the
FA2100CVR audio can be copied one channel at a time, or all individual channels
can be copied simultaneously. Reconstructed GMT/RSE output signals may also be
reproduced using the PI’s Aux Read-out Cable, p/n: 17TES0052.
J.
Built-In-Test (BIT)
A continuous Built-In-Test (BIT) capability is provided at power up to establish and
monitor the mission fitness of the hardware. The built-in-test feature has been de-
signed to perform a continuous test of all bits within the solid-state memory located
in the Crash Survivable Memory Unit (CSMU).
An additional built-in-test is initiated by pressing a green TEST pushbutton located
on the front panel of the control unit (Models S151/S161, S152/S162 or
S251/S261). A green TEST indicator is located on the front panel of the Model
S151/S161/S152/S162 and S251/S261 Control Units to indicate successful comple-
tion of the manual test. (Note: The S161
−
1390
−
01 Control Unit does not have a LED
Test Indicator.) The TEST pushbutton is used to generate the 620- to 660-Hertz test
tone used for unit verification. This test tone is developed on the Audio Compressor
PWA and applied to each channel individually where it is processed, stored in
memory, read from memory, and checked for expected frequency and amplitude.
In the GACVR, a continuous Bite Status Output or Recorder Fault is indicated on pin
23. A ground at pin 23 represents a no fault, while an open indicates a fault or that
a CVR is not installed. The CVR test indicator wires, pins 15 and 16 (1mA) may be
omitted in installations where ARINC 557 compatibility is not needed.
The document reference is online, please check the correspondence between the online documentation and the printed version.
