737-700 AVIONCS BITE HANDBOOK 航电自测设备手册 1(26)

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Fault condition shows if the fault was steady (S) or intermittent (I). All faults are initially recorded as a steady fault. If the fault goes away, the indication changes to intermittent.
Failure time shows the GMT of the first occurrence of the fault. This time does not change if the fault goes away and then comes back.
For an FMCS fault, the monitor code shows the type of program fault in the FMC. For a sensor input fault, the monitor code shows the specific type of ARINC 429 failure.
These are the monitor codes for ARINC 429 failures:
-Rate (receive rate failure)
-Parity (parity failure)
-SSM (sign/status matrix failure)
-Reason (reasonableness failure).

Line select key 6L shows the INDEX prompt. This selects the FLIGHT SELECT page.
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FMCS BITE PAGES - INFLIGHT FAULT
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FMCS BITE PAGES - CDU TEST
General
To test the MCDUs, select CDU TEST on line select key (LSK) 2L, from the FMCS BITE page. The CDU TEST is an interactive self test that shows the MCDU
characters. It also tests the MCDU push buttons and annunciators.
FMCS CDU TEST Page
On this page you can select the CDU DSPLY TEST (LSK 5R) or the

CDU KEY TEST (LSK 5L).
FMCS DSPLY TEST Page
This test shows the complete MCDU character set.
Push LSK 6L to go back to the FMCS CDU TEST page.
FMCS KEY TEST
This test shows the MCDU faceplate keys on the MCDU screens. As

you push each key on a keyboard, the MCDUs highlight the key on the

screen while the scratchpad shows the name of the key you pushed. When you push LSK 6L the second time, the MCDU goes back to the FMCS CDU TEST page.
When you push the INIT/REF key the second time, the MCDU goes back to the INIT/REF page.
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FMCS BITE PAGES - CDU TEST

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FMCS BITE PAGES - SENSORS THIS PAGE INTENTIONALLY LEFT BLANK
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FMCS BITE PAGES -SENSORS
General
To see FMCS sensor status, select SENSORS on line select key (LSK)
3L from the FMCS BITE page.
Sensor Status Pages
The sensor status pages show the current status of all the sensors that
send data to the FMC selected as the BITE source.
These systems send data to the FMCS:

- VOR 
- DME 
- ADIRS M 

-MMR (ILS & GPS) -DFCS -FQIS -CLOCK -FMC -CDS DEU.

If the two FMCs do not agree on the status of an LRU, a highlight shows around the status field for that lRU. In the example shown on the graphic, FMC L and FMC R do not agree on the status of the right VOR.
Dashed lines in the status field show the LRU does not exist or the FMC selected as the BITE source does not interface with the LRU. In the example shown on the graphic, the DFCS FCC A is the master FCC and it is the FCC that reports DFCS status to FMC 1 and FMC 2.
737-700 MAINTENANCE TRAINING MANUAL

Dashed lines in the status field show the LRU does not exist or the FMC does not interface with the LRU. In the example shown on the graphic, the master FCC is the FCC that reports DFCS status to FMC 1.
　
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