R (a) If the feeders are not correct:
R - repair or replace the feeders as necessary.
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R (b) If the feeders are correct:
R - replace the GLC-2 (9XU2) (Ref. AMM TASK 24-22-55-000-001) and
R (Ref. AMM TASK 24-22-55-400-002).
R 1_ If the fault continues:
R - replace the BTC-2 (11XU2) (Ref. AMM TASK 24-22-55-000-001)
R and (Ref. AMM TASK 24-22-55-400-002).
R B. Remove the safety clip(s) and the tag(s) and close this(these) circuit
R breaker(s):
R 1XN2, 7XN2, 3XN2, 5XN2, 2XC, 1DG2, 2HQ, 2PU2, 10XN
R C. Do this operational test to make sure that the system operates correctly.
R (1) Aircraft Maintenance Configuration
R (a) Energize the aircraft electrical circuits
R (Ref. AMM TASK 24-41-00-861-002).
R (b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
R (Ref. AMM TASK 31-60-00-860-001).
R (2) On the ELEC panel 35VU:
R - push, release and push again the GEN 2 pushbutton switch (3XU2).
R (3) Do the operational test of the GAPCU (Ref. AMM TASK 24-41-00-740-R 002).
R (4) Start the engine 2 (Ref. AMM TASK 71-00-00-710-003).
R (5) Do this test:
R -------------------------------------------------------------------------------R ACTION RESULT
R -------------------------------------------------------------------------------
R On the ECAM control panel: On the lower ECAM DU:
R - get the ELEC page. - the correct electrical parameters of
R the GEN 2 are shown and the AC2
R busbar is supplied by the GEN 2.
R 5. Close-up
________ R A. Put the aircraft back to its initial configuration. R (1) Stop the engine 2 (Ref. AMM TASK 71-00-00-710-028). R (2) Do the EIS stop procedure
R (Ref. AMM TASK 31-60-00-860-002).
R (3) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY
R potentiometers to OFF.
「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 : 401-499, ∞∞24-20-00∞∞∞∞∞∞∞∞∞∞Page A253
Aug 01/05 CESR (4) De-energize the aircraft electrical circuits R (Ref. AMM TASK 24-41-00-862-002).
R TASK 24-20-00-810-864
R Failure of the ENG MASTER SW 1 Signal to the GCU 1 R 1. Possible Causes
_______________
R - GCU-1 (1XU1)
R - CTL SW-ENG/MASTER 1 (3KC)
R - wiring
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-22-34-000-001 Removal of the GCU-1(2) (1XU1, 1XU2)
R AMM 24-22-34-400-001 Installation of the GCU-1(2) (1XU1, 1XU2)
R AMM 24-41-00-740-002 Operational Check of GAPCU via CFDS
R ASM 24-22/02
R ASM 76-12/01
R 3. Fault Confirmation__________________
R A. Test
R (1) Do the BITE test of the GAPCU (Ref. AMM TASK 24-41-00-740-002).
R (a) If the BITE test gives the message TEST FAILED: R - do the trouble shooting given in Para 4.A.
R (b) If the BITE test gives the message TEST PASSED: R - do the trouble shooting given in Para 4.B.
R 4. Fault Isolation
_______________
R A. If the BITE test gives the message TEST FAILED:
R - push the line key adjacent to the TEST FAILED message.
R (1) If the maintenance message GCU1 (1XU1) comes into view:
R - replace the GCU-1 (1XU1) (Ref. AMM TASK 24-22-34-000-001) and (Ref.
R AMM TASK 24-22-34-400-001).
R B. If the BITE test gives the message TEST PASSED:
R - do a check of the contact of the ENG/MASTER 1 control switch (3KC) for
R correct operation between pins 3A and 1A (Ref. ASM 76-12/01).
R (1) If the contact do not operate correctly:
R - replace the CTL SW-ENG/MASTER 1 (3KC) on the ENG panel 115VU.
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R (2) If the contact operate correctly:
R - do a check of the fuel-cutoff status wiring (Ref. ASM 24-22/02) for
R an open circuit between pin 3A of the ENG/MASTER 1 control switch
R and pin A/8C of the GCU 1.
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 2(13)
