NOTE: Let the tape wind back to the start.
____
(h)
Touch the PLAY symbol. 1) Make sure the preview monitor shows the video.
(i)
Push the EXEC switch.
S 715-009
(3) Make sure the video system operates:
(a) Make sure the VTR plays the video tape.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH VIDEO ENTERTAINMENT ú
23-32-00
ú ú 20 Page 503 ú Dec 20/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
(b)
Make sure the SCU remotely operates the VTR and routes video to the monitors.
(c)
Make sure the picture on each monitor in the passenger compartment is clear and bright.
(d)
Listen for clear VTR sound: 1) Connect a headset into the monitor jack on the control unit.
2) Make sure the VTR sound is clear and that it relates to the picture shown on the video monitor.
H. Put the Airplane Back to Its Usual Condition
S 865-018
(1) Remove power from the units in the video control center:
(a)
Push the STOP, then the EJECT buttons on the VTR, and remove the tape cassette.
(b)
Push the POWER switch off at each VTR.
(c)
Push the power switch off at the SCU.
S 865-012
(2)
Put the PES switch to OFF at the forward attendant panel, P21.
S 865-025
(3)
Remove electrical power, if it is not necessary (Ref 24-22-00/201).
TASK 23-32-00-735-001
3. System Test - Passenger Entertainment (Video) System
____________________________________________________
A. General
(1) The system test does these tests:
(a)
System Control Unit Test
(b)
Video Monitors Test
(c)
Passenger Address (PA) Audio Test
(d)
Passenger Control Unit Test
(e)
Decompression Mode Test
(f)
VTR Random Access Function Test
(g)
VTR Operation Test
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH VIDEO ENTERTAINMENT ú
23-32-00
ú ú 20 Page 504 ú Jun 20/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
B. Equipment
(1) Video Test Tapes
C. References
(1)
23-31-00/501, Passenger Address
(2)
23-34-00/501, Passenger Entertainment (Audio)
(3)
24-22-00/201, Electrical Power - Control
D. Access
(1) Location Zone
200 Upper Half of Fuselage
E. Prepare for the System Test
S 865-002
(1)
Supply electrical power (Ref 24-22-00/201).
S 865-016
(2)
Put the PES switch to ON at the forward attendant panel, P21.
S 865-004
(3)
Make sure this circuit breaker on the overhead circuit breaker panel, P11, is closed:
(a) 11H30, VIDEO SYS DC
S 865-006
(4) Make sure these circuit breakers on the right miscellaneous
electrical equipment panel, P37, are closed:
(a)
37A6, VIDEO SYSTEM (MAIN BUS) MONITOR FWD
(b)
37A7, VIDEO SYSTEM (MAIN BUS) MONITOR AFT
(c)
37A8, VIDEO SYSTEM (MAIN BUS) SYSTEM AC
(d)
37C6, VIDEO SYSTEM (UTIL BUS) MONITOR FWD
(e)
37C7, VIDEO SYSTEM (UTIL BUS) MONITOR AFT
(f)
37C8, VIDEO SYSTEM (UTIL BUS) SYSTEM AC
F. GUN 008-101; System Control Unit Test
S 735-005
(1) Do these steps to do a test of the VTR sound.
(a) Do these steps at the control distribution unit (referred to as the CDU) in the video control center: 1) Push the POWER switch to the on position. 2) Push the ZONE A, B, and C switches to the ON position. 3) Push the PLYR 1 switch for ZONE A, B, and C. 4) Make sure the ON light to the left of each row of switches
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：757 AMM 飞机维护手册 COMMUNICATIONS 通讯(63)
