A320 Trouble Shooting Manual 排故手册 PNEUMATIC(143)

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 -connect the LOOP CONTROLLER (9240SI) between the BMC2 connector 1HA2-AA/4B and the ground
 -do a check of the impedance read on the LOOP CONTROLLER (9240SI).
 1_ If the impedance is less than 3 KOhms:
 - disconnect the connector between the sensing elements 79HF
 and 72HF
 - do a check of the impedance read or the LOOP CONTROLLER
 (9240SI).

 a If the impedance is less than 3 KOhms:
_
 -disconnect the connector between the sensing elements 75HF and the cable 76HF
 -do a check of the impedance read on the LOOP CONTROLLER (9240SI).
 1
 -EFF : ALL

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 --May 01/04R ---CES -

 . if the impedance is less than 3 KOhms:
 -replace the ELEMENT-OVERHEAT SENSING (76HF) (Ref. AMM TASK 36-22-18-000-001) and (Ref. AMM TASK 36-22-18-400-001)
 -do a check of the impedance read on the LOOP CONTROLLER (9240SI)
 * if the impedance is less than 3 KOhms:
 -do a check and repair the wiring between the pin AA/4B of the BMC2 (1HA2) and the cable 76HF
 -connect all the cables or connectors disconnected
 -disconnect the LOOP CONTROLLER (9240SI) from the BMC2 connector
 -install the BMC2 (1HA2) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
 * if the impedance is more than 3 KOhms:
 -connect all the cables or connectors disconnected
 -disconnect the LOOP CONTROLLER (9240SI) from the BMC2 connector
 -install the BMC2 (1HA2) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
 . if the impedance is more than 3 KOhms:

 -disconnect the connector between the sensing elements 75HF and 79HF
 -connect the connector between the sensing element 75HF and the cable 76HF
 -do a check of the impedance read on the LOOP CONTROLLER (9240SI)
 * if the impedance is less than 3 KOhms:
 -replace the ELEMENT-OVERHEAT SENSING (75HF) (Ref. AMM TASK 36-22-18-000-001) and (Ref. AMM TASK 36-22-18-400-001)
 -connect all the cables or connectors disconnected
 -disconnect the LOOP CONTROLLER (9240SI) from the BMC2 connector
 -install the BMC2 (1HA2) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
 * if the impedance is more than 3 KOhms:
 -replace the ELEMENT-OVERHEAT SENSING (79HF) (Ref. AMM TASK 36-22-18-000-001) and (Ref. AMM TASK 36-22-18-400-001)
 -connect all the cables or connectors disconnected
 -disconnect the LOOP CONTROLLER (9240SI) from the BMC2 connector
 -install the BMC2 (1HA2) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
 1
 -EFF : ALL

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 --May 01/04R ---CES -

 2
_

_
 -disconnect the connector between the sensing element 72HF

 and 71HF
 -connect the connector between the sensing elements 79HF and 72HF
 -do a check of the impedance read on the LOOP CONTROLLER (9240SI). . if the impedance is less than 3 KOhms:
 -replace the SNSG ELEM-OVHT, R WING LOOP B (72HF) (Ref. AMM TASK 36-22-16-000-001) and (Ref. AMM TASK 36-22-16-400-001)
 -connect all the cables or connectors disconnected
 -disconnect the LOOP CONTROLLER (9240SI) from the BMC2 connector
 -install the BMC2 (1HA2) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
 . if the impedance is more than 3 KOhms:

 -disconnect the connector between the sensing elements 71HF and 70HF
 -connect the connector between the sensing elements 72HF and 71HF
 -do a check of the impedance read on the LOOP CONTROLLER (9240SI)
 * if the impedance is less than 3 KOhms:
 -replace the SNSG ELEM-OVHT, R WING LOOP B (71HF) (Ref. AMM TASK 36-22-16-000-006) and (Ref. AMM TASK 36-22-16-400-007)
 -connect all the cables or connectors disconnected
 -disconnect the LOOP CONTROLLER (9240SI) from the BMC2 connector
 -install the BMC2 (1HA2) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
 * if the impedance is more than 3 KOhms:
 -replace the SNSG ELEM-OVHT, R WING LOOP B (70HF) (Ref. AMM TASK 36-22-16-000-005) and (Ref. AMM TASK 36-22-16-400-005)
 -connect all the cables or connectors disconnected
 -disconnect the LOOP CONTROLLER (9240SI) from the BMC2 connector.
 -install the BMC2 (1HA2) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
If the impedance is more than 3 KOhms:
 -disconnect the connector between the cables 67HF and 66HF
　
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