R . pins B/22 and B/24 of the APU GLC (3XS) (normally closed)

R . pins A/C1 and A/C2 of the EPC auxiliary control relay (5XG) R (normally open)

R . pins A/D1 and A/D2 of the EPC auxiliary control relay (5XG) R (normally open)

R . pins B/10 and B/12 of the GLC 2 (9XU2) (normally closed)

R . pins B/6 and B/8 of the BTC 2 (11XU2) (normally closed)

R . pins B/10 and B/12 of the GLC 1 (9XU1) (normally closed)

R . pins B/6 and B/8 of the BTC 1 (11XU1) (normally closed).

R (a) If the auxiliary contacts are not correct:
R - replace the RELAY-EPC AUX CTL (5XG) as necessary
R - replace the GLC-APU (3XS) (Ref. AMM TASK 24-23-55-000-001) and
R (Ref. AMM TASK 24-23-55-400-001) as necessary
R - replace the GLC-1 (9XU1), the GLC-2 (9XU2), the BTC-1 (11XU1)
R or the BTC-2 (11XU2) (Ref. AMM TASK 24-22-55-000-001) and (Ref.
R AMM TASK 24-22-55-400-002) as necessary.

R (b) If the auxiliary contacts are correct:
R - do a check of the wiring of the EPC control circuit (Ref. ASM
R 24-41/01) for an open circuit or a short to ground between:

R . pin B/5 of the EPC (3XG) and ground

R . pin B/3 of the EPC and pin B/22 of the APU GLC (3XS)

R . pin B/24 of the APU GLC and pin A/C1 of the EPC AUX CTL relay R (5XG)

R . pin A/C2 of the EPC auxiliary control relay and pin B/10 of R the GLC 2

R . pin A/C2 of the EPC auxiliary control relay and pin B/8 of R the BTC 2

R . pin B/12 of the GLC 2, pin B/6 of the BTC 2, pin B/12 of the R GLC 1 and pin B/6 of the BTC 1

 「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 233
 Aug 01/05 CES

R  . pin B/10 of the GLC 1 and pin A/D2 of the EPC auxiliary 
R  control relay 
R  . pin B/8 of the BTC 1 and pin A/D2 of the EPC auxiliary 
R  control relay 
R  . pin A/D1 of the EPC auxiliary control relay and pin 2 of the 
R  ELEC/EXT/PWR/CTL circuit breaker (11XG). 
R  1_  If the wiring is not correct:
R  - repair or replace the wiring as necessary. 
R  2_  If the wiring is correct:
R  - do a check of the wiring of the APU GLC status-circuit (Ref. 
R  ASM 24-23/02) for an open circuit or a short to ground 
R  between: 
R  . pin A/A1 of the APU AVAIL relay (6KD) and pin B/28 of the 
R  EPC (3XG) 
R  . pin B/26 of the EPC and pin B/20 of the APU GLC contactor 
R  (3XS) 
R  . pin B/18 of the APU GLC contactor and pin A/6A of the 
R  GAPCU. 
R  - do a check of the auxiliary contacts (Ref. ASM 24-23/02) for 
R  correct operation between: 
R  . pin B/18 and pin B/20 of the APU GLC (3XS) (normally 
R  closed) 
R  . pin B/26 and pin B/28 of the EPC (3XG) (normally closed). 
R  a_  If the wiring or the auxiliary contacts are not correct:
R  - repair or replace the wiring as necessary 
R  - replace the GLC-APU (3XS) (Ref. AMM TASK 24-23-55-000-
R  001) and (Ref. AMM TASK 24-23-55-400-001) as necessary 
R  - replace the EPC (3XG) (Ref. AMM TASK 24-41-55-000-001) 
R  and (Ref. AMM TASK 24-41-55-400-001) as necessary. 
R  b_  If the wiring or the auxiliary contacts are correct:
R  - replace the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001) 
R  and (Ref. AMM TASK 24-41-34-400-001). 
R  C. Do the test given in para. 3.

R TASK 24-41-00-810-819

R  Failure of the External Power Wiring or Interlock Protection 
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  24-41/01 
　
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 電源 3(105)