COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
FA2100CVR
Page 310
Nov. 01/98
Disassembly
23–70–04
D. Audio Compressor PWA (AC) Removal
(See Figure 307 or IPL Figure 1, Item 155)
The Model FA2100’s Audio Compressor PWA is mounted to the Aircraft Interface
PWA located in the rear panel assembly of the recorder chassis. It provides digital
conversion and compression of the input audio stream. It interfaces to the Acquisi-
tion Processor PWA via interconnect cable assembly W003 through the J2 connec-
tor; and to the Aircraft Interface PWA via cable assembly W002 through the J1 con-
nector.
(1) Remove the CSMU memory assembly (1-185) as described in paragraph B.
above.
(2) Remove the 10 pan-head screws (1-25) which secure the chassis cover (1-20) to
the recorder chassis (1−5).
NOTE
: Pan-head sealing screws (1-25) are one time use items that
should be discarded when removed and replaced with new
screws.
(3) If the rear panel assembly has not been removed from the chassis perform steps
(4) − (7). If the rear panel assembly has been removed, then skip to step (8).
(4) Disconnect the Aircraft Interface PWA interconnection cable assembly, W001
(1-165), from J2 on the Acquisition Processor PWA.
(5) Disconnect the Audio Compressor PWA interconnection cable assembly, W003
(1-165), from J4 on the Acquisition Processor PWA.
(6) Remove 8 flat-head screws (1-95) that secure the rear panel assembly (1-90) with
attached Aircraft Interface PWA and Audio Compressor PWA into the recorder
Chassis (1-5).
NOTE
: Flat-head screws (1-95) are one time use items that should
be discarded when removed and replaced with new screws.
(7) Lift the rear panel assembly away from the chassis.
(8) Disconnect the interconnection cable assembly, W002 (1-170), from J1 on the Au-
dio Compressor PWA (1−155).
(9) Disconnect the interconnection cable assembly, W003 (1-165), from J2 on the Au-
dio Compressor PWA.
(10) Place the Assembly Support Tool fixture, Table 701: item 5, between the Aircraft
Interface PWA (1-105) and the rear panel assembly (1-90). Position the fixture
such that the inner part of the “U” shape surrounds the J1A connector.
Dec. 09/1
Rev. 13 Page 310
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