S 865-327
(5)
Remove the hydraulic power if it is not necessary (AMM 29-00-00/201).
S 865-328
(6)
If you will do no more tests, then do this task: "Put the Airplane to its Usual Condition."
TASK 31-24-01-735-329
16. Airborne Vibration Monitor Signals Test_______________________________________
A. Special Tools and Equipment
(1) Interface Technology model 429 test set
B. Reference
(1) AMM 77-31-03/401, Airborne Vibration Monitoring (AVM) System
C. Access
(1) Location Zones
101 Control Cabin - Left
102 Control Cabin - Right
D. Procedure
S 865-330
(1)
Make sure you did the Prepare For Input Parameter Test task.
(2)
Do this test of the signals from the airborne vibration monitor:
S 735-331
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. BEJ 113 ú
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A 737-300/400/500MAINTENANCE MANUAL
NOTE: Some ARINC 429 transmitters do not produce enough current to
____ generate the desired test results. Instead, the ARINC 429 transmitter can cause a value of 3000 to show on the portable tester. If you get a value of 3000, use a different tester and do the test again.
(a)
Open this circuit breaker:
1) P6 Panel
a) ENG VIB MON
(b)
Remove the Anti-Vibration Monitor (AVM) signal conditioner from the E1-2 electronics shelf in the main equipment center (AMM 77-31-03/401).
(c)
Connect the (A) side of the ARINC 429 test set to pin C6 on connector D3228A.
(d)
Connect the (B) side of the ARINC 429 test set to pin D6 on connector D3228A.
(e)
Close this circuit breaker:
1) P6 Panel
a) ENG VIB MON
(f)
Set the 429 test set to transmit on channel 1 at low speed.
(g)
Set the ARINC 429 test set as follows:
1) LABEL 354
2) update rate is 200ms
(h)
Set the ARINC 429 test set to these bit conditions:
NOTE: The FLS setting is only applicable to the Interface
____
Technology model 429A test set.
~............................................................ |FLS | 31 | 30 | 29 | 28 | 27 | 26 thru 11 | 10 | 9 | .............................................................. | L | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 2.....….....….....….....….....….....…............….....….....1
(i)
Set the portable tester to SUPERFRAME 1, SUBFRAME 1, WORD 30.
(j)
Make sure the portable tester display is 0300.
NOTE:____This is a SUPERFRAME. The portable tester display will show for four seconds. The applicable display will show again after 64 seconds.
(k)
Open this circuit breaker:
1) P6 Panel
a) ENG VIB MON
(l)
Remove the ARINC 429 test set.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. BEJ 113 ú
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ú ú 05B Page 527 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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