R (1) If the fault continues:
R - remove the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001)
R - close the circuit breaker 2XU1.

R (a) If the fault does not continue:
R - install a new GAPCU (24XG) (Ref. AMM TASK 24-41-34-400-001).

R (b) If the fault continues:
R - open the circuit breakers 8XA and 1XA
R - disconnect the connector of the diode module 1162VD (Ref. IPC
R 25710104)
R - close the circuit breakers 8XA and 1XA.

R  1_  If the fault does not continue:
R  - open the circuit breakers 8XA and 1XA 
R  - replace the diode module 1162VD (Ref. IPC 25710104) 
R  - install the GAPCU (24XG) (Ref. AMM TASK 24-41-34-400-001)

 「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 ∞∞24-23-00∞∞∞∞∞∞∞∞∞∞Page 209
 Aug 01/05 CES

R  - close the circuit breakers 8XA and 1XA. 
R R R R R R R R R R R  2_  If the fault continues:- open the circuit breakers 8XA and 1XA - do a check and repair the wiring between: . the pin A/11 of the diode module 1162VD and the pin AA/6G of the GAPCU (24XG) . the pin A/11 and the pin A/10 of the diode module 1162VD (Ref. ASM 24-26/01) - connect the connector of the diode module 1162VD (Ref. IPC 25710104) - install the GAPCU (24XG) (Ref. AMM TASK 24-41-34-400-001) - close the circuit breakers 8XA and 1XA. 
R  **ON A/C ALL
 C. Do the test given in Para. 3.
 5. Close-up________
 A. Put the aircraft back to its initial configuration.
 (1) Stop the APU: - GTCP 36-300 (Ref. AMM TASK 49-00-00-860-004) or - APS 3200 (Ref. AMM TASK 49-00-00-860-006) or - 131-9(A) (Ref. AMM TASK 49-00-00-860-009).
 (2) Put the aircraft back to its initial configuration.
 (3) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

 TASK 24-23-00-810-806
 Aircraft Electrical Circuits cannot be supplied from the APU GEN
 1. Possible Causes_______________
R  - GLC-APU (3XS) - P/BSW-ELEC/APU GEN (2XS) - GCU-APU (1XS) - GLC-1 (9XU1) - GLC-2 (9XU2) - GAPCU (24XG) - wiring
 2. Job Set-up Information______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
R R R R  AMM AMM AMM AMM AMM AMM AMM AMM AMM ASM  24-22-55-000-001 24-22-55-400-002 24-23-34-000-001 24-23-34-400-001 24-23-55-000-001 24-23-55-400-001 24-41-00-861-002 24-41-34-000-001 24-41-34-400-001 24-23/02 Removal of the Contactors (9XU1, 9XU2, 11XU1, 11XU2)Installation of the Contactors (9XU1, 9XU2, 11XU1, 11XU2)Removal of the GCU-APU (1XS)Installation of the GCU-APU (1XS)Removal of the APU GLC (3XS)Installation of the APU GLC (3XS)Energize the Aircraft Electrical Circuits from the APU Removal of the Ground Auxiliary Power Control Unit (GAPCU) (24XG) Installation of the Ground Auxiliary Power Control Unit (GAPCU) (24XG)
 3. Fault Confirmation__________________
 A. Test
 (1) Energize the Aircraft Electrical Circuits from the APU (Ref. AMM TASK 24-41-00-861-002).

 4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 A. If the test confirms the results below when the APU is started and the APU GEN pushbutton switch is pushed on the ELEC panel 35VU: . on the lower ECAM display unit, on the ELEC page, in the APU GEN box, the voltage is 115VAC and the frequency is 400Hz, . the OFF legend of the APU GEN pushbutton switch goes off.
 - Do a check for 28VDC between pins B/3 and B/5 of the APU GLC (3XS) (Ref. ASM 24-23/02).
 (1) If there is 28VDC:

 - Replace the GLC-APU (3XS) (Ref. AMM TASK 24-23-55-000-001) and (Ref. AMM TASK 24-23-55-400-001).

 (2) If there is no 28VDC:

 - Do a check for 28VDC between pins X1 and X2 of the APU GLC auxiliary control relay (4XS).
 (a) If there is no 28VDC:
 - Replace the P/BSW-ELEC/APU GEN (2XS).
 1 If the fault continues:
_
 - Do a check and repair the wiring between pin X1 of the APU GLC auxiliary control relay (4XS) and pin AA/12C of the APU GCU (1XS).
 a If the fault continues:
_
 - Replace the GCU-APU (1XS) (Ref. AMM TASK 24-23-34-000-001) and (Ref. AMM TASK 24-23-34-400-001).
 (b) If there is 28VDC:
 - Do a check of the wiring between pins B/10 and B/12 of the GLC1 (9XU1) and of the GLC2 (9XU2).
 1 If there is no continuity:
_
 - Replace the GLC-1 (9XU1) and/or GLC-2 (9XU2) (Ref. AMM TASK 24-22-55-000-001) and (Ref. AMM TASK 24-22-55-400-002).
　
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