R 1_ If the BITE test gives the message TEST FAILED:
R - do the trouble shooting given in Para 4.A.
R 2_ 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 GAPCU (24XG) comes into view:
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. If the BITE test gives the message TEST PASSED:
R - do a check of the wiring of the ground/flight signal (Ref. ASM 24-
R 41/01) between pin B/9E of the LGCIU (5GA1) and pin A/2C of the GAPCU
R (24XG).
R (1) If there is no continuity:
R - repair or replace as necessary.
R (2) If there is continuity:
R - replace the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001) and (Ref.
R AMM TASK 24-41-34-400-001).
R C. Do the test given in para. 3.
R TASK 24-41-00-810-818
R Failure of the EPC Control Circuit
R 1. Possible Causes_______________
R - GAPCU (24XG)
R - EPC (3XG)
R - RELAY-EPC AUX CTL (5XG)
R - GLC-APU (3XS)
R - GLC-1 (9XU1)
R - GLC-2 (9XU2)
R - BTC-1 (11XU1)
R - BTC-2 (11XU2)
R - wiring
R 2. Job Set-up Information______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-22-55-000-001 R AMM 24-22-55-400-002 R R AMM 24-23-55-000-001 R AMM 24-23-55-400-001 R AMM 24-41-00-740-002 R AMM 24-41-34-000-001 R R AMM 24-41-34-400-001 R R AMM 24-41-55-000-001 R AMM 24-41-55-400-001 R ASM 24-23/02 R ASM 24-41/01
R 3. Fault Confirmation
__________________
R A. Test
Removal of the Contactors (9XU1, 9XU2, 11XU1, 11XU2)
Installation of the Contactors (9XU1, 9XU2, 11XU1,
11XU2)
Removal of the APU GLC (3XS)
Installation of the APU GLC (3XS)
Operational Check of GAPCU via CFDS
Removal of the Ground Auxiliary Power Control Unit
(GAPCU) (24XG)
Installation of the Ground Auxiliary Power Control
Unit (GAPCU) (24XG)
Removal of the External Power Contactor (EPC)
Installation of the External Power Contactor (EPC)
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.
「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, ∞∞24-41-00∞∞∞∞∞∞∞∞∞∞Page 232
Aug 01/05 CES
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 GAPCU (24XG) comes into view:
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. If the BITE test gives the message TEST PASSED:
R - do a check of the EPC (3XG) coil for correct electrical continuity
R between pin B/3 and pin B/5 (Ref. ASM 24-41/01).
R (1) If the coil electrical continuity is not correct:
R - replace the EPC (3XG) (Ref. AMM TASK 24-41-55-000-001) and (Ref.
R AMM TASK 24-41-55-400-001).
R (2) If the coil electrical continuity is correct: 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址:A320 Trouble Shooting Manual 排故手册 电源 3(104)