B. Test
(1) Do this test:
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the ECAM control panel: - push the ELEC key to get the ELEC page.
R R 4. Fault Isolation_______________ A. If the test confirms the fault:
On the lower ECAM display unit:
- the normal configuration comes intoview (the AC1 busbar is shown in green).
On the upper ECAM display unit:
- the ELEC AC BUS 1 FAULT warning comes into view.
- do a check of the status of the circuit breaker (17XN1).
(1) If the circuit breaker is closed: R - replace the RELAY-BUS 1XP CTL (15XC).
R (a) If the fault continues:
R - replace the SDAC-1 (1WV1) (Ref. AMM TASK 31-55-34-000-001) and
R (Ref. AMM TASK 31-55-34-400-001).
R 1_ If the fault continues:
R - replace the SDAC-2 (1WV2) (Ref. AMM TASK 31-55-34-000-001)
R and (Ref. AMM TASK 31-55-34-400-001).
R a_ If the fault continues:R
- do a check of the wiring between: . the pins A/5D of the SDAC 1 and SDAC 2 and the pin A/B2 of the relay (15XC) . the pin A/B3 of the relay (15XC) and the ground (Ref. ASM 24-25/01).
R * If there is no continuity:
R
R * - repair the above wiring.
R * If there is continuity:
R
R * - do a check and repair the wiring between:
R * . the pin A/X1 of the relay (15XC) and the circuit
R breaker (17XN1)
R * . the pin A/X2 of the relay (15XC) and the ground (Ref.
ASM 24-25/01).
「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 ∞∞24-50-00∞∞∞∞∞∞∞∞∞∞Page 219
Feb 01/03 CES
(2) If the circuit breaker is open: - close it.
(a) If the circuit breaker trips: - replace the RELAY-BUS 1XP CTL (15XC).
R R 1_ If the fault continues: - replace the RELAY-BUS 1XP CTL (20XN1).
R R 2_ If the fault continues: - do a check for a short to ground at the wiring between the circuit breaker (17XN1) and respectively: . the pin A/X1 of the bus 1XP control relay (15XC) . the pin A/X1 of the bus 1XP control relay (20XN1) (Ref. ASM 24-25/01) and (Ref. ASM 24-51/02).
a_ If the wiring is not correct: - repair it.
b_ If the wiring is correct: - replace the C/B-ELEC/AC/BUS1/CTL (17XN1).
B. Do this test to make sure that the system operates correctly:
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the ECAM control panel: - push the ELEC key to get the ELEC page. On the lower ECAM display unit:- the normal configuration comes intoview.
5. Close-up________
A. Put the aircraft back to its initial configuration.
(1) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(2) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
TASK 24-50-00-810-807
Unwanted Warning from the AC2 Busbar
1. Possible Causes_______________
R R RR - SDAC-2 (1WV2) - SDAC-1 (1WV1) - RELAY-BUS 2XP CTL (16XC) - wiring - RELAY-BUS 2XP CTL (20XN2) - C/B-ELEC/AC/BUS2/CTL (17XN2)
2. Job Set-up Information______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
R R AMM AMM AMM AMM AMM ASM ASM 24-41-00-861-002 24-41-00-862-002 31-55-34-000-001 31-55-34-400-001 31-60-00-860-001 24-25/0124-51/03 Energize the Aircraft Electrical Circuits from the External PowerDe-energize the Aircraft Electrical Circuits Supplied from the External Power Removal of the SDAC (1WV1,1WV2) Installation of the SDAC (1WV1,1WV2)EIS Start Procedure
3. Fault Confirmation__________________
A. Job Set-up
(1) Aircraft Maintenance Configuration
(a) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
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