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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-31-00-019
Test
When you push the test switch, the MMR does a check of the
internal operation and its interface with other airplane systems.
The test takes approximately 44 seconds. This is the test
sequence that shows on the LED status indicators during the
test:
* 0 to 2 seconds - the LRU STATUS, the CONTROL FAIL, and
the ANT FAIL LEDs come on red
* 2 to 4 seconds - the LRU STATUS LED is green and the
CONTROL FAIL LED is red
* 4 to 16 seconds - all LEDs go off
* 16 to 44 seconds - test status shows.
The LRU STATUS segment shows red when there is an internal
failure in the MMR. Green shows that the MMR is operating
normally.
The CONTROL FAIL segment shows red when an interface to
the MMR has a failure. Green shows that all the interfaces to the
MMR are normal.
ILS - FRONT PANEL BITE
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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ILS - FRONT PANEL BITE
ILS - FRONT PANEL BITE
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
34-31-00-020
Test
You use the NAV control panels to do an ILS test from the flight
compartment. The captain NAV control panel does a test of
MMR 1 and the first officer NAV control panel does a test of
MMR 2.
You need to set these controls to do an ILS test:
* Enter a valid ILS frequency into the active frequency display
window on the NAV control panel
* Set a course on the DFCS mode control panel that is within
90 degrees of the airplane heading
* Push the test switch on the NAV control panel.
To see the ILS test on the NAV display, you must select the
approach (APP) mode on the EFIS control panel mode selector.
This is the display sequence that shows on the CDS during the
ILS test:
* For the first 3 seconds, one dot left of localizer deviation and
one dot up of glideslope deviation
* For the next 3 seconds, one dot right of localizer deviation
and one dot down of glideslope deviation
* Displays return to normal indications.
ILS - SELF-TEST
EFFECTIVITY
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ILS - SELF-TEST
ILS - SELF-TEST
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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General
This page is for reference.
ILS - SYSTEM SUMMARY
EFFECTIVITY
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ILS - SYSTEM SUMMARY
ILS - SYSTEM SUMMARY
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
General
The marker beacon system supplies visual and aural
indications when the airplane flies over airport runway
marker beacon transmitters.
Abbreviations and Acronyms
* A/P - autopilot
* AC - alternating current
* ACP - audio control panel
* ALT - alternate
* AMP - amplifier
* B - both
* BITE - built-in test equipment
* CDS - common display system
* DEU - display electronics unit
* DME - distance measuring equipment
* FDAU - flight data acquisition unit
* DU - display unit
* FT - functional test
* GND - ground
* Hz - hertz
* I/C - intercom
* ILS - instrument landing system
* IM - inner marker
* I/O - input/output
* LCD - liquid crystal display
* LED - light emitting diode
* LRU - line replaceable unit
* MAINT - maintenance
* MB - marker beacon
* MHz - mega hertz
* MM - middle marker
* NAV - navigation
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