S 865-032
(2)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
TASK 23-71-00-735-000
3. System Test - Voice Recorder System
___________________________________
A. General
(1) This procedure has two tests.
(a)
The Four Channel Test makes sure that the voice recorder operates correctly on all four channels.
(b)
The Bulk Erase Test makes sure that the voice recorder will erase only when the airplane is on the ground with the parking brake set.
B. Standard Tools and Equipment
(1) Headphone Set
C. References
(1)
10-11-00/201, Normal Parking
(2)
24-22-00/201, Manual Control
D. Access
(1) Location Zones
101 Control Cabin, Left
102 Control Cabin, Right
E. Procedure
S 865-006
(1) Supply electrical power if it is necessary (AMM 24-22-00/201).
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S 485-008
(2) Connect the headphone into the HEADSET or HEADPHONE jack on the voice recorder control panel.
F. Four Channel Test
S 865-009
(1)
Put a cover on the area microphone on the control panel for the voice recorder.
S 755-010
(2)
Do the channel test for the captain's jack panel:
(a)
Connect the boom microphone headset to the captain's jack panel.
(b)
Push the INT switch on the captain's audio selector panel.
(c)
Speak into the boom microphone.
(d)
Make sure that you hear your voice through the headphone at the control panel.
NOTE: When you do a test of the digital or solid state voice
____ recorder, you will hear your voice in the headset as you speak. When you do a test of the analog or tape based voice recorder, you will hear your voice in the headset after approximately a 0.5 second delay.
(e) Remove the boom microphone headset from the captain's jack panel.
S 755-011
(3) Do the channel test for the first officer's jack panel:
(a)
Connect the boom microphone headset to the first officer's jack panel.
(b)
Push the INT switch on the first officer's audio selector panel.
(c)
Speak into the boom microphone.
(d)
Make sure that you hear your voice through the headphone at the control panel.
NOTE: When you do a test of the digital or solid state voice
____ recorder, you will hear your voice in the headset as you speak. When you do a test of the analog or tape based voice recorder, you will hear your voice in the headset after approximately a 0.5 second delay.
(e) Remove the boom microphone headset from the first officer's jack panel.
S 755-012
(4) Do the channel test for the first observer's jack panel:
(a) Connect a boom microphone headset or a hand mic and headphone, as applicable, to the first observer's jack panel.
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(b)
Push the INT switch on the first observer's audio selector panel.
(c)
Speak into the boom microphone or hand mic.
(d)
Make sure that you hear your voice through the headphone at the control panel.
NOTE: When you do a test of the digital or solid state voice
____ recorder, you will hear your voice in the headset as you speak. When you do a test of the analog or tape based voice recorder, you will hear your voice in the headset after approximately a 0.5 second delay.
(e) Remove the boom microphone headset or hand mic and headphone from the first observer's jack panel.
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