b If there is no 115VAC:
_
- do a check and repair the wiring between the circuit breaker (2PU2) and the contactor (14PU) (Ref. ASM 24-42/01).
(2) If the circuit breaker 2PU2 is open:
- close it.
(a) If the circuit breaker trips:
- do a check of the wiring for short to ground between the circuit breaker 2PU2 and the TR2 (Ref. ASM 24-32/01).
1 If the wiring is not correct.
_ - repair it.
2 If the wiring is correct:
_ - replace the C/B - TR2 SPLY (2PU2).
(3) If the circuit breaker 4PU2 is open:
- close it.
(a) If the circuit breaker trips:
- do a check of the wiring between pin 5 of the TR2 contactor 5PU2 and the circuit breaker 4PU2 (Ref. ASM 24-32/01).
1 If the wiring is not correct:
_ - repair it.
2 If the wiring is correct:
_
- replace the C/B - TR2 CNTOR SPLY (4PU2).
R **ON A/C 063-099, 106-149, 153-199, 206-299, 301-399, 401-499,
A. If the test confirms the fault:
- do a check of the status of the circuit breakers 4PU2 and 2PU2.
(1) If the circuit breakers are closed:
- do a check of the TR2 voltage on the lower ECAM DU, on the ELEC page.
(a) If the TR2 voltage value is approximately 28VDC:
- replace the CNTOR-TR 2 (5PU2) (Ref. AMM TASK 24-32-55-000-001) and (Ref. AMM TASK 24-32-55-400-001).
1 If the fault continues:
_
- do a check and repair the wiring between the TR2 28VDC outlet and the TR2 pin B/F (Ref. ASM 24-32/01).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞24-30-00∞∞∞∞∞∞∞∞∞∞Page 208
Aug 01/05 CES 2 If the fault continues:
_
- replace the CNTOR-TR 2/AC SVCE BUS NORM SPLY (14PU) (Ref. AMM TASK 24-32-55-000-001) and (Ref. AMM TASK 24-32-55-400-001).
(b) If the TR2 voltage value is 0VDC and shown in amber:
- do a check for 115VAC on the pins 19, 20, 21 of the module 20XX.
1 If there is 115VAC:
_
- replace the TR-2 (1PU2) (Ref. AMM TASK 24-32-51-000-001) and (Ref. AMM TASK 24-32-51-400-001).
2 If there is no 115VAC:
_
- do a check for 115VAC on the pins 22, 23, 24 of the module 20XX.
a If there is 115VAC:
_
- replace the RELAY GND/FLT SELECT CTL(7XX).
. If the fault continues:
- replace the CNTOR-TR 2/AC SVCE BUS NORM SPLY (14PU) (Ref. AMM TASK 24-32-55-000-001) and (Ref. AMM TASK 24-32-55-400-001).
. If the fault continues:
- replace the CNTOR-AC & DC GND SVCE SPLY (14XX) (Ref. AMM TASK 24-42-55-000-001) and (Ref. AMM TASK 24-42-55-400-001).
. If the fault continues:
- do a check and repair the wiring between: . the ELEC/AC PWR/SVCE/CTL circuit breaker (3XX) and the pin 3 of the contactor (14PU) . the pin 5 of the contactor (14PU) and the ground.
b If there is no 115VAC:
_
- do a check and repair the wiring between the circuit breaker (2PU2) and the module 20XX (Ref. ASM 24-42/01).
(2) If the circuit breaker 2PU2 is open:
- close it.
(a) If the circuit breaker trips:
- do a check of the wiring for short to ground between the circuit breaker 2PU2 and the TR2 (Ref. ASM 24-32/01).
1 If the wiring is not correct.
_ - repair it.
2 If the wiring is correct:
_ - replace the C/B - TR2 SPLY (2PU2).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 063-099, 106-149, 153-199, 206-299, ∞∞24-30-00∞∞∞∞∞∞∞∞∞∞Page 209
301-399, 401-499, Aug 01/05 CES1. On the MCDU:
R (3) If the circuit breaker 4PU2 is open:
R - close it.
R (a) If the circuit breaker trips:
R - do a check of the wiring between pin 5 of the TR2 contactor
R 5PU2 and the circuit breaker 4PU2 (Ref. ASM 24-32/01).
R 1_ If the wiring is not correct:
R - repair it.
R 2_ If the wiring is correct:
R - replace the C/B - TR2 CNTOR SPLY (4PU2).
R **ON A/C ALL
B. Do the Test:
-------------------------------------------------------------------------------
ACTION RESULT
-------------------------------------------------------------------------------
- push the line key adjacent to the TR2 indication,
- push the line key adjacent to the TR2 RESET indication.
5. Close-up
________The TR2 page comes into view.
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 3(39)
