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(4)
AIRPLANES WITH A TAPE REPRODUCER IN THE EE BAY; Do a test of the boarding music operation:
(a) Turn the MUSIC OFF switch on the forward attendant panel, P13, to the middle position. 1) While you turn the control clockwise, make sure the volume
level of the PSU and the attendant speakers increases.
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737-300/400/500MAINTENANCE MANUAL
2) While you turn the control counterclockwise, make sure the volume level of the PSU and the attendant speakers decreases.
3) Make sure you hear clear music at the PSU, the lavatory, and the attendant speakers. 4) Turn the volume control to the middle position.
(b) AIRPLANES WITH A TAPE REPRODUCER ON THE FORWARD LAVATORY WALL; Do these steps: 1) Push the 2 digit code (90) on the keyboard of the tape
reproducer. 2) Push the MUSIC "1" button to open the cassette door on the
tape reproducer. 3) Put the test tape into the tape reproducer. 4) Close the cassette door on the tape reproducer. 5) Push the MUSIC "1" button on the tape reproducer.
a) Make sure the MUSIC "1" light comes on. 6) Push the "START" button. a) Make sure the "START" light comes on. 7) Turn the volume control clockwise. a) Make sure the volume level increases on all of the speakers. 8) Turn the volume control counterclockwise. a) Make sure the volume level decreases on all of the speakers. 9) Turn the volume control to the middle position. a) Make sure you hear clear music on all of the speakers.
10) Push the MUSIC "2" button on the tape reproducer. a) Make sure the MUSIC "2" light comes on. b) Make sure you hear a different type of music on all of
the speakers. c) Make sure the LED display on the RD-AX7308 tape reproducer shows a "0".
(c) Make a PA announcement from the Flight Compartment and from the attendant stations. 1) Make sure the PA announcement cancels the boarding music.
S 715-395
(5) AIRPLANES WITH A TAPE REPRODUCER ON THE WALL; Do a Test of the Prerecorded Announcement Operation:
(a)
Push the "0" and the "1" button on the tape reproducer. 1) Make sure the LED display shows "01". 2) Make sure the cassette tape starts to wind. 3) When the cassette tape stops, make sure the "READY" light
comes on.
(b)
Push the "START" button. 1) Make sure the "START" light comes on. 2) Make sure you hear the prerecorded announcement on the
speakers.
(c)
Push the "STOP" button on the tape reproducer.
(d)
Push the "0" and the "2" button on the tape reproducer. 1) Make sure the "READY" light comes on.
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(e)
Push the "START" button on the tape reproducer. 1) Make sure you hear the announcement on all of the speakers.
(f)
Make a PA announcement from the Flight Compartment and from the attendant stations. 1) Make sure the PA announcement cancels the prerecorded
announcement.
CAUTION: IF YOU DO NOT OPEN THE PASSENGERS OXYGEN SYSTEM CIRCUIT
_______ BREAKERS IN THE P18-3 PANEL, THE OXYGEN MASKS IN THE PASSENGER COMPARTMENT WILL BE RELEASED.
(g)
ON AIRPLANES WITH A PRE-RECORDED EMERGENCY ANNOUNCEMENT; Open these circuit breakers: 1) P18-3 Load Control Center - Left
a) OXYGEN SYSTEM PASS L
b) OXYGEN SYSTEM PASS R
(h)
Make sure these circuit breakers are closed:
1) P18-3 Load Control Center - Left 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 通讯 COMMUNICATIONS(58)
