- do a check of the diode module (1802VD) between the pin
 A/33 and A/34 and replace the diode module (1802VD), if
 necessary.

 * If the fault continues:

 - do a check and repair the wiring between:
 . the pin 2 of the circuit breaker (14XB) and the pins
 A/X1 and A/A1 of the relay (7XB),
 . the pin A/X2 of the relay (7XB) and the ground through
 the pushbutton switch (23XE).

 b If there is 28 VDC, do the step that follows:
_
R (3) Do a check for 28 VDC at the coil of the contactor (2XB) with the R EMER GEN TEST pushbutton pushed and the ELEC BUS/TIE pushbutton in R the OFF position.
 (a) If there is 28 VDC:
 - replace the CNTOR-STAT INV (2XB) (Ref. AMM TASK 24-28-55-000-001) and (Ref. AMM TASK 24-28-55-400-001).
 1 If the fault continues:
_
 - replace the STAT INV (3XB) (Ref. AMM TASK 24-28-51-000-001) and (Ref. AMM TASK 24-28-51-400-001).
 (b) If there is no 28 VDC:
 - do a check for 28 VDC at the pin A/C2 of the relay (15XC).
 1 If there is no 28 VDC:
_
 - replace the RELAY (7XB).
 2 If the fault continues:
_
 - replace the RELAY (6XB).
 a If the fault continues:
_
 - replace the RELAY - BUS 1XP CTL (15XC).
 「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 ∞∞24-28-00∞∞∞∞∞∞∞∞∞∞Page 204
 Aug 01/98 CES

 * If the fault continues:
 . replace the RELAY - BUS 2XP CTL (16XC).

 * If the fault continues:
 . replace RELAY - EMER CONDITION (12XE).

 b If the fault continues:
_
 - do a check and repair the wiring between:
 * the pin A/A2 of the relay (7XB) and the pins A/X1 and A/A2 of the relay (6XB)

 * the pin A/A1 of the relay (6XB) and the ground through the contactor (2XB)

 * the pin A/X2 of the relay (6XB) and the ground (Ref. ASM 24-28/01).

 D. If the test confirms the fault:
 - replace the P/BSW - ELEC/BUS TIE (10XU).
 (1) If the fault continues:

 - replace the RELAY - BUS TIE (30XU1), RELAY - SMOKE (30XU2).

 (2) If the fault continues:

 - do a check and repair the wiring between respectively: . the ELEC/BTC1/SPLY circuit breaker (15XU) and the ground through the APU GLC (3XS), the EPC (3XG), the relays (5XG, 4XS, 4XU1, 4XU2, 9XU2, 30XU1) and the BUS TIE pushbutton switch (10XU) . the pin A/B3 of the relay (30XU1) and the pin A/9C of the GCU 1 through the BTC 1 (11XU1) . the ELEC/GEN1/OFF/BTC1 SPLY circuit breaker (5XU) and the pin A/X1 of the relay (30XU1) through the relays (5XG, 4XU1) and the GLC 1 (9XU1) . the ELEC/GEN2/OFF/BTC2 SPLY circuit breaker (8XU) and the ground, through the relays (4XU2, 30XU2) and the BUS TIE pushbutton switch (10XU) . the pin A/B3 of the relay (30XU2) and the pin A/9C of the GCU 2 through the BTC 2 (11XU2) . the ELEC/GEN1/OFF/BTC2 SPLY circuit breaker (14XU) and the pin A/X1 of the relay (30XU2) through the APU GLC (3XS), the EPC (3XG), the relays (5XG, 4XS, 4XU2, 4XU1) and the GLC 1 (9XU1) . the ELEC/GEN1/OFF/BTC1 SPLY circuit breaker (5XU) and the relay (4XU2) through the relay (5XG), the APU GLC (3XS), the EPC (3XG) and the BTC 1 (11XU1) (Ref. ASM 24-22/02) and (Ref. ASM 24-23/02) and (Ref. ASM 24-22/03).
 「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 ∞∞24-28-00∞∞∞∞∞∞∞∞∞∞Page 205
 Aug 01/98R
 CES

 E. If the test confirms the fault (amber crosses replace the STAT INV electrical parameters):
 - do a check of the status of the circuit breaker (27WV).
 (1) If the circuit breaker is closed:

 - do a check for 115VAC at the pin 2 of the circuit breaker (27WV).
 (a) If there is 115VAC:

 - do a check and repair the wiring between the pin 2 of the circuit breaker (27WV) and the first branch point (Ref. ASM 24-24/02).

 (b) If there is no 115VAC:

 - do a check and repair the wiring between the pin 1 of the circuit breaker (27WV) and the pin A/A of the STAT INV (3XB) (Ref. ASM 24-24/02).

 (2) If the circuit breaker is open:

 - close it.
 (a) If the circuit breaker trips:
 - do a check of the wiring for a short to ground between the pin 2 of the circuit breaker (27WV) and the first branch point (Ref. ASM 24-24/02).
 1_ If the wiring is not correct:
　
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊(cè) 電源 3(34)