(2)
Use this procedure for the AVM signal conditioner with this part number:
(a)
Boeing part numbers - S360N021-100, S360N021-102.
(b)
Vendor part numbers - Vibro-meter 241-250-000-031, 241-250-000-121.
B. Special Tools and Equipment
(1)
C77004 Test Box Generic AVM Interface.
(A jumper connector is an alternative; One end
of the jumper wire must mate with the connector
on the ARINC 429 reader)
(2)
Interface Test Box Substitute
(a)
Plug - 1/4 inch stereo phone,
Standard, 3 conductor
(b)
Cable - Shielded, 2 conductor, AWG 22, approximately 1 foot long
(c)
Wire - Jumper, AWG 22,
approximately 6 inches long
(d)
Pins - BACC47CN1A or
AMPHENOL P/N 48-2335-09
4 quantity
C. Standard Tools and Equipment
(1) ARINC 429 Reader - JcAir Model 429EB or 429EBP, or an equivalent
D. References
(1)
AMM 71-00-47/101, High Vibration Indication
(2)
AMM 71-00-54/101, AVM Indication Problems
E. Access
(1) Location Zone
205 Electronic Compartment
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(2) Access Panel
1201L Electronic Equipment Access Door
F. Prepare to Read the Fault History and Flight History
S 862-042-C00
(1) Make sure this circuit breaker on the circuit breaker panel, P6, is closed.
(a) ENG VIBRATION MONITOR
S 012-063-C00
(2)
Open the Electronic Equipment Access Door, 1201L.
S 482-001-C00
(3)
Do these steps to attach the ARINC 429 reader to the airborne vibration monitor (AVM) signal conditioner (Fig. 201):
(a)
Remove the protective cap from the connector on the front panel of the AVM signal conditioner.
(b)
Do these steps if you do not use the Generic AVM test box:
1) Make a substitute for the interface box. a) Install one pin on each wire of the cable at one end. b) Identify the pins as pin 1 and pin 2. c) Install the phone plug on the cable, with the wire for
pin 1 to the tip conductor of the plug, the wire for pin 2 to the second conductor, and the shield to ground.
d) Install one pin on each end of the jumper wire. 2) Connect the phone plug into the RX connector of the ARINC 429 reader. 3) Connect the pins 1 and 2 of the AVM signal conditioner connector.
(c) Do these steps if you use the Generic AVM test box: 1) Connect the connector A of the Generic AVM test box to the AVM signal conditioner.
2) Connect the RX connector of the ARINC 429 reader to the connector B of the Generic AVM test box.
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ELECTRICAL CONNECTOR B (CONNECTS TO ARINC 429 READER)
GENERIC AVM TEST BOX
Read Airborne Vibration Monitor Fault History
Figure 201 (Sheet 1)
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