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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-53-00-017
ATC SYSTEM - ANTENNA COAX SWITCH CONTROL
ATC SYSTEM - ANTENNA COAX SWITCH CONTROL
EFFECTIVITY
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D633A101-SHZ1 Oct 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-53-00-017
General
Push the TEST switch on the front of the transponder or select
TEST on the ATC/TCAS control panel to start a self-test of the
ATC system. During the test, the transponder BITE circuits do
these functions:
* Normal operation test
* Memory tests
* Simulated interrogation test of the receiver circuits
* Antenna impedance test
* TCAS interface test
* Valid control and altitude inputs monitor.
Test From the Front Panel
Push and release the test switch. All front panel light emitting
diode (LED) status indicators turn red for two seconds. After two
seconds, the LRU STATUS turns green and the other LEDs
remain red. Then all the LEDs go off for two seconds. At this
time, the applicable LEDs come on to show the condition of the
ATC transponder system. After 30 seconds, all LEDs go off.
These are the LED status indicators and their related
conditions:
* LRU STATUS (GREEN) - no LRU failures
* LRU STATUS (RED) - LRU failure
* ANTENNA TOP FAIL - top antenna fails
* ANTENNA BOT FAIL - bottom antenna fails
* ALTITUDE FAIL - altitude input from the ADIRU fails
* CONTROL FAIL - control panel input fails.
Test From the Control Panel
Push and release the test button on the control panel to start a
self-test of the ATC system. The XPNDR FAIL light comes on for
three seconds and then goes off if the test is successful. The
XPNDR FAIL light stays on for any of these conditions:
* Antenna failure
* Transponder failure
* Control data failure
* Altitude input failure.
ATC SYSTEM - SELF TEST
EFFECTIVITY
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D633A101-SHZ1 Oct 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-53-00-018
ATC SYSTEM - SELF TEST
ATC SYSTEM - SELF TEST
EFFECTIVITY
SHZ ALL 34-53-00
Page 41
D633A101-SHZ1 Oct 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-53-00-018
General
This graphic is for reference purposes only.
ATC SYSTEM - SYSTEM SUMMARY
EFFECTIVITY
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Page 42
D633A101-SHZ1 Oct 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-53-00-005
ATC SYSTEM - SYSTEM SUMMARY
ATC SYSTEM - SYSTEM SUMMARY
EFFECTIVITY
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Page 43
D633A101-SHZ1 Oct 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-53-00-005
Purpose
The distance measuring equipment (DME) system supplies
slant range (line of sight) distance measurement between the
airplane and the ground station.
Abbreviations and Acronyms
* AC - alternating current
* ACP - audio control panel
* ADF - automatic direction finder
* alt - alternate
* altn - alternate
* app - approach
* ARINC - Aeronautical Radio, Inc.
* ATC - air traffic control
* ATE - automatic test equipment
* auto - automatic
* B - both
* BITE - built-in test equipment
* BL - buttock line
* CAPT - captain
* CDU - control display unit
* circ - circulator
* CPU - central (control) processing unit
* DC - direct current
* DEU - display electronics unit
* DME - distance measurement equipment
* EFIS - electronic flight instrument system
* F/O - first officer
* FCC - flight control computer
* FDAU - flight data acquisition unit
* FMC - flight management computer
* FMCS - flight management computer system
* freq - frequency
* fwd - forward
* grd - ground
* I/C - intercom
* ILS - instrument landing system
* LCD - liquid crystal display
* LED - light emitting diode
* LRU - line replacable unit
* maint - maintenance
* MHz - megahertz
* MKR - marker beacon
* nav - navigation
* NCD - no computed data
* ND - navigation display
* NORM - normal
* PFD - primary flight display
* R - range
* rcvr - receiver
* REU - remote electronics unit
　
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