(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).

 (2) On the ELEC panel 35VU:

 - push, release and push again the GEN 2 pushbutton switch (3XU2).

 (3) Do the operational test of the GAPCU (Ref. AMM TASK 24-41-00-740-002).

 (4) Start the engine 2 (Ref. AMM TASK 71-00-00-710-003).

 (5) Do this test:

 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
On the ECAM control panel:  On the lower ECAM DU:
 - get the ELEC page.  - the correct electrical parameters of the GEN 2 are shown and the AC2 busbar is supplied by the GEN 2.
 「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 : 106-149, 229-299, 303-399, 401-499, ∞∞24-20-00∞∞∞∞∞∞∞∞∞∞Page C286
 Aug 01/05 CES

 5. Close-up
________

 A. Put the aircraft back to its initial configuration.
 (1) Stop the engine 2 (Ref. AMM TASK 71-00-00-710-028).

 (2) Do the EIS stop procedure
 (Ref. AMM TASK 31-60-00-860-002).

 (3) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.

 (4) De-energize the aircraft electrical circuits
 (Ref. AMM TASK 24-41-00-862-002).

 TASK 24-20-00-810-959

 Failure of the Diode Module Related to the GCU 1
 1. Possible Causes
_______________
 - GCU-1 (1XU1)

 - DIODE MODULE (2420VD)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 24-22-34-000-001 Removal of the GCU-1(2) (1XU1, 1XU2)
 AMM 24-22-34-400-001 Installation of the GCU-1(2) (1XU1, 1XU2)
 AMM 24-41-00-740-002 Operational Check of GAPCU via CFDS

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the GAPCU (Ref. AMM TASK 24-41-00-740-002).
 (a) If the BITE test gives the message TEST FAILED:

 - do the trouble shooting given in Para 4.A.

 (b) If the BITE test gives the message TEST PASSED:

 - do the trouble shooting given in Para 4.B.
 4. Fault Isolation
_______________
 A. If the BITE test gives the message TEST FAILED:
 - push the line key adjacent to the TEST FAILED message.
 (1) If the maintenance message GCU1 (1XU1) comes into view:
 - replace the GCU-1 (1XU1) (Ref. AMM TASK 24-22-34-000-001) and (Ref. AMM TASK 24-22-34-400-001).
 B. If the BITE test gives the message TEST PASSED:
 - replace the DIODE MODULE (2420VD).
 C. Do the test given in para. 3.
 「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 : 106-149, 229-299, 303-399, 401-499, ∞∞24-20-00∞∞∞∞∞∞∞∞∞∞Page C288
 Aug 01/05 CES TASK 24-20-00-810-960

 Failure of the Diode Module Related to the GCU 2
 1. Possible Causes
_______________
 - GCU-2 (1XU2)

 - DIODE MODULE (2422VD)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 24-22-34-000-001 Removal of the GCU-1(2) (1XU1, 1XU2)
 AMM 24-22-34-400-001 Installation of the GCU-1(2) (1XU1, 1XU2)
 AMM 24-41-00-740-002 Operational Check of GAPCU via CFDS

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the GAPCU (Ref. AMM TASK 24-41-00-740-002).
 (a) If the BITE test gives the message TEST FAILED:

 - do the trouble shooting given in Para 4.A.

 (b) If the BITE test gives the message TEST PASSED:

 - do the trouble shooting given in Para 4.B.
 4. Fault Isolation
_______________
 A. If the BITE test gives the message TEST FAILED:
　
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