「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 : 401-499, ∞∞24-23-00∞∞∞∞∞∞∞∞∞∞Page 241
 Aug 01/05 CES

R  (a) If the resistance values are out of the specified limits: 
R  - replace the GEN-APU (8XS) (Ref. AMM TASK 24-23-51-000-001) and 
R  (Ref. AMM TASK 24-23-51-400-001). 
R  (b) If the resistance values are in the specified limits and the 
R  fault continues: 
R  - replace the GEN-APU (8XS) (Ref. AMM TASK 24-23-51-000-001) and 
R  (Ref. AMM TASK 24-23-51-400-001). 
R  B. Make sure that the aircraft electrical circuits operate correctly in APU 
R  configuration. 
R  (1) Energize the aircraft electrical circuits from the APU (Ref. AMM TASK 
R  24-41-00-861-002). 
R  (2) Let the APU generator operate for five minutes to make sure that it 
R  operates correctly. 
R  (3) De-energize the aircraft electrical circuits from the APU (Ref. AMM 
R  TASK 24-41-00-862-002).

R TASK 24-23-00-810-820 R Failure of the GAPCU Point-Of-Regulation Wiring R 1. Possible Causes
_______________
R - GAPCU (24XG) R - wiring R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-41-00-861-002 R R AMM 24-41-00-862-002 R R AMM 24-41-34-000-001 R R AMM 24-41-34-400-001 R R ASM 24-23/01
R 3. Fault Confirmation
__________________
R A. Test
R Not applicable.

Energize the Aircraft Electrical Circuits from the APU De-energize the Aircraft Electrical Circuits Supplied from the APU Removal of the Ground Auxiliary Power Control Unit (GAPCU) (24XG) Installation of the Ground Auxiliary Power Control Unit (GAPCU) (24XG)
R NOTE : As the APU GEN was set to OFF because of a true failure, the fault
____ R confirmation is not necessary.
R 4. Fault Isolation
_______________
R A. If the fault symptom is identified by the CFDS message WRG: POR/ GAPCU R (24XG) and the upper ECAM-DU warning APU GEN FAULT: R - do a check of the Point-Of-Regulation (POR) sense wiring (Ref. ASM 24-R 23/01) for a short to ground, a short circuit or an open circuit R between:
R . pin D of the APU GLC (3XS) and pin A/15G of the GAPCU

R . pin E of the APU GLC and pin A/15H of the GAPCU

R . pin F of the APU GLC and pin A/14G of the GAPCU

R . POR neutral connection and pin A/14H of the GAPCU.

R (1) If the wiring is not correct:
R - repair or replace as necessary.

 「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 : 401-499, ∞∞24-23-00∞∞∞∞∞∞∞∞∞∞Page 243
 Aug 01/05 CES

R  (2) If the wiring is correct: 
R  - replace the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001) and (Ref. 
R  AMM TASK 24-41-34-400-001). 
R  B. Make sure that the aircraft electrical circuits operate correctly in APU 
R  configuration. 
R  (1) Energize the aircraft electrical circuits from the APU (Ref. AMM TASK 
R  24-41-00-861-002). 
R  (2) Let the APU generator operate for five minutes to make sure that it 
R  operates correctly. 
R  (3) De-energize the aircraft electrical circuits from the APU (Ref. AMM 
R  TASK 24-41-00-862-002).

R TASK 24-23-00-810-821

R Failure of the Neutral Point-Of-Regulation Wiring of the GAPCU R 1. Possible Causes
_______________
R - GAPCU (24XG) R - wiring R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-41-00-861-002 R R AMM 24-41-00-862-002 R R AMM 24-41-34-000-001 R R AMM 24-41-34-400-001 R R ASM 24-23/01
R 3. Fault Confirmation
__________________
R A. Test
R Not applicable.

Energize the Aircraft Electrical Circuits from the APU De-energize the Aircraft Electrical Circuits Supplied from the APU Removal of the Ground Auxiliary Power Control Unit (GAPCU) (24XG) Installation of the Ground Auxiliary Power Control Unit (GAPCU) (24XG)
R NOTE : As the APU GEN was set to OFF because of a true failure, the fault
　
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