2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R AMM 24-41-00-740-002 Operational Test of the Ground power Control Unit (GPCU) AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the APU AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the APU AMM 24-41-34-000-001 Removal of the Ground Power Control Unit (GPCU) (1XG) AMM 24-41-34-400-001 Installation of the Ground Power Control Unit (GPCU)
 (1XG)
 ASM 24-41/01

 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. Test Do the Operational Test of the GPCU (Ref. AMM TASK 24-41-00-740-002)
 「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 : 001-049, 051-099, 101-149, 151-199, ∞∞24-40-00∞∞∞∞∞∞∞∞∞∞Page 207
 201-299, 301-399, Aug 01/05 CES

 4. Fault Isolation
_______________
 A. If the test gives the maintenance message CHECK GROUND POWER:
 - replace the external power source.
 (1) If the fault continues:
 - do a check of the feeder wiring for open circuit or short to ground between respectively the pins A, B, C of the external power receptacle (20XG) and the pins A/K, A/L, A/M of the EPC (3XG) (Ref. ASM 24-41/01).
 (a) If the wiring is not correct:

 - repair it.

 (b) If the wiring is correct:

 - do a check of the wiring for open circuit or short to ground between respectively the pins B/5C, B/6D, B/7C of the GPCU and the pins A/J, A/H, A/G of the EPC (Ref. ASM 24-41/01).

 (c) If the fault continues:

 - replace the GPCU (1XG), (Ref. AMM TASK 24-41-34-000-001) and (Ref. AMM TASK 24-41-34-400-001).
 B. Make sure that the aircraft electrical circuits operate correctly in ground configuration.
 (1) Energize the aircraft electrical circuit from the external power (Ref. AMM TASK 24-41-00-861-002).

 (2) De-energize the aircraft electrical circuits from the external power (Ref. AMM TASK 24-41-00-862-002).

 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)

 「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 : 001-049, 051-099, 101-149, 151-199, ∞∞24-40-00∞∞∞∞∞∞∞∞∞∞Page 208
 201-299, 301-399, Aug 01/05 CES

 TASK 24-40-00-810-805
 Failure of the Ground Power Control Unit
 1. Possible Causes
_______________
 - GPCU (1XG)

 - wiring

 - 7XG

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R AMM 24-41-00-740-002 Operational Test of the Ground power Control Unit (GPCU) AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the APU AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the APU AMM 24-41-34-000-001 Removal of the Ground Power Control Unit (GPCU) (1XG) AMM 24-41-34-400-001 Installation of the Ground Power Control Unit (GPCU)
 (1XG)
 ASM 24-41/01

 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. Test Do the Operational Test of the GPCU (Ref. AMM TASK 24-41-00-740-002)
 「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 : 001-049, 051-099, 101-149, 151-199, ∞∞24-40-00∞∞∞∞∞∞∞∞∞∞Page 209
　
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