CRJ700/900 audio system
11-19-2008, 05:28 PM
#1
Gets Weekends Off
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Joined APC: Sep 2007
Position: Aeroplanes
Posts: 1,163
CRJ700/900 audio system
Okay folks, here's a head scratcher for you. I've asked captains, check airmen, and some maintenance folks, and haven't gotten an answer.
Circuit breaker 2V2, on the DC Essential bus, behind the F/Os flight case, is a 5 amp circuit breaker called "AUDIO PILOT"
This breaker is part of the audio system but not in the audio/visual indicating system (not the DCU power), and does not control the capt, f/o, and ovserver panel.
Anyone know what this is?
Circuit breaker 2V2, on the DC Essential bus, behind the F/Os flight case, is a 5 amp circuit breaker called "AUDIO PILOT"
This breaker is part of the audio system but not in the audio/visual indicating system (not the DCU power), and does not control the capt, f/o, and ovserver panel.
Anyone know what this is?
11-19-2008, 07:04 PM
#5
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Posts: 70
got your answer.... this breaker along with 1q6 (fo) provide power to the audio ctrl unit. pulling 2v2 should disable the ability to use pilot side audio functions.
11-20-2008, 08:10 AM
#6
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Joined APC: Feb 2007
Posts: 85
Originally Posted by cessna157
Okay folks, here's a head scratcher for you. I've asked captains, check airmen, and some maintenance folks, and haven't gotten an answer.
Circuit breaker 2V2, on the DC Essential bus, behind the F/Os flight case, is a 5 amp circuit breaker called "AUDIO PILOT"
This breaker is part of the audio system but not in the audio/visual indicating system (not the DCU power), and does not control the capt, f/o, and ovserver panel.
Anyone know what this is?
Circuit breaker 2V2, on the DC Essential bus, behind the F/Os flight case, is a 5 amp circuit breaker called "AUDIO PILOT"
This breaker is part of the audio system but not in the audio/visual indicating system (not the DCU power), and does not control the capt, f/o, and ovserver panel.
Anyone know what this is?
CB's 1Q6 (CA) & 1Q7 (FO) power associated audio from the BATT Bus. In theory you would have to lose both busses to lose CA & FO audio power.
The observer audio has two breakers as well: 2H4 & 1Q8
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