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CSP 700−5000−6
Volume 2
06−10−26
STATIC DISCHARGER
The airplane wings and tail sections contain static wicks installed to discharge static electricity,
reducing radio interference. They are installed at the following locations:
· Winglets/wingtips and ailerons.
· Elevators, rudder, vertical stabilizer, horizontal stabilizer and tail cone.
GF0610_053
There are two parts to each static discharge assembly: the static discharger and the mounting base.
If any are found missing during the walkaround, refer to the configuration deviation list of the AFM to
verify if you can dispatch.
GF0610_054
COMMUNICATIONS
Rev 3, Apr 25, 2005 Flight Crew Operating Manual
CSP 700−5000−6
Volume 2
06−10−27
COCKPIT VOICE RECORDER
The Cockpit Voice Recorder (CVR) is a crash survivable recording device that simultaneously
records four channels of audio data representing the cockpit acoustic environment. The system
consists of:
· CVR.
· Microphone monitor/control panel.
· Remote area microphone.
· Impact switch.
CVR LOCATION
The CVR retains the most recent two hours of recorded information in memory. Input is received
from each audio control panel and CVR area microphone. The CVR also receives digital data (GMT
time) from DAU 4 to synchronize the CVR with the flight data recorder.
COCKPIT VOICE
RECORDER
GF0610_055
The CVR is mounted in the aft equipment bay. The microphone monitor/control panel is located in
the flight compartment right side panel.
MICROPHONE MONITOR CONTROL PANEL
GF0610_056
STATUS Display
Illuminates as a function
of test and/or failure.
ERASE Push button
Pushing the ERASE
push button initiates a
memory erase sequence
within the CVR.
HEADSET Monitor Jack
Used to monitor tone
transmissions during test
and audio signals currently
being recorded.
TEST Push button
Pushing the test button
will activate the CVR
internal selftest.
COCKPIT VOICE RECORDER MICROPHONE MONITOR
ERASE TEST
STATUS HEADPHONE
COMMUNICATIONS
Flight Crew Operating Manual Rev 3, Apr 25, 2005
CSP 700−5000−6
Volume 2
06−10−28
REMOTE AREA MICROPHONE
An area microphone is mounted in the flight compartment overhead panel.
GF0610_057
AREA MICROPHONE
IMPACT SWITCH
The impact switch mounted in the aft avionics bay removes electrical power to the CVR when the
airplane experiences an impact.
GF0610_058
AFT AV BAY
IMPACT SWITCH
Audio Control Panel Input
The audio panels provide audio inputs to the CVR for recording flight crew voice communications
and other flight compartment audio signals.
GF0610_059
Audio Control Panel
The various audio signals are summed together in the audio panels to form a single audio input to
the CVR from each audio panel.
COMMUNICATIONS
Rev 3, Apr 25, 2005 Flight Crew Operating Manual
CSP 700−5000−6
Volume 2
06−10−29
CVR SYSTEM SCHEMATIC
DAU 4 (GMT)
AUDIO PANEL 3
(If installed)
AUDIO PANEL 2
AUDIO PANEL 1
IMPACT SWITCH
AREA MIC
GF0610_060
COCKPIT VOICE RECORDER MICROPHONE MONITOR
ERASE TEST
STATUS HEADPHONE
COMMUNICATIONS
Flight Crew Operating Manual Rev 3, Apr 25, 2005
CSP 700−5000−6
Volume 2
06−10−30
MICROPHONE MONITOR CONTROL PANEL TEST
The cockpit voice recorder microphone monitor panel “TEST”, “STATUS” and “ERASE” functions are
as follows:
• TEST − Push and hold the “TEST” push-button for approximately one second to activate the
CVR internal self-test.
GF0610_061
PASSENGER OXYGEN
CLOSED OVERRIDE
NORMAL
FIRST AID
TEST PORT
PASS ON
OFF
A successful test will result in the green “STATUS” LED illuminating for one second and a two
second aural tone will be heard using the headphone.
NOTE
If a failure occurs during the self test, the green “STATUS” LED will
illuminate continuously and no aural tone will be heard.
"TONE"
GF0610_062
• STATUS − The operation of the green “STATUS” LED is described above under the “TEST”
function.
• ERASE − The “ERASE” push-button is used to initiate a memory erase sequence within the
CVR. The CVR logic ensures that the “ERASE” function is only enabled when the airplane is
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