R TASK 24-22-00-810-823 R Failure of the GLC 1 or Loss of its Status Indication R 1. Possible Causes
_______________
R - GCU-1 (1XU1) R - RELAY (20XU) R - GLC-1 (9XU1) R - wiring
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-22-34-000-001 R AMM 24-22-34-400-001 R AMM 24-22-55-000-001 R AMM 24-22-55-400-002 R R AMM 24-41-00-740-002 R ASM 24-22/02
R 3. Fault Confirmation
__________________
R A. Test
Removal of the GCU-1(2) (1XU1, 1XU2)
Installation of the GCU-1(2) (1XU1, 1XU2)
Removal of the Contactors (9XU1, 9XU2, 11XU1, 11XU2)
Installation of the Contactors (9XU1, 9XU2, 11XU1,
11XU2)
Operational Check of GAPCU via CFDS

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).

 「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, ∞∞24-22-00∞∞∞∞∞∞∞∞∞∞Page 265
 Aug 01/05 CES

R  B. If the BITE test gives the message TEST PASSED: 
R  - do a check of the wiring (Ref. ASM 24-22/02) for an open circuit 
R  between: 
R  . pin 2 of the ELEC/GCU1 circuit breaker (2XU1) and pin A/B of the 
R  function relay (20XU) 
R  . pin A/3 of the function relay and pin B/18 of the GLC 1 (9XU1) 
R  . pin B/20 of the GLC 1 and pin A/29 of the diode module module 2420VD 
R  . pin A/14 of the diode module 2420VD and pin A/6A of the GCU 1. 
R  - do a check of the contacts for correct operation of the function relay 
R  (20XU) and the GLC 1 (9XU1) (Ref. ASM 24-22/02) between: 
R  . pins A/B and A/3 of the function relay (normally closed) 
R  . pins B/18 and B/20 of the GLC 1 (normally closed). 
R  (1) If the wiring or the contacts are not correct: 
R  - repair or replace the wiring as necessary 
R  - replace the RELAY (20XU) as necessary 
R  - replace the GLC-1 (9XU1) (Ref. AMM TASK 24-22-55-000-001) and (Ref. 
R  AMM TASK 24-22-55-400-002) as necessary. 
R  (2) If the wiring or the contacts are correct: 
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  C. Do the test given in para. 3.

R TASK 24-22-00-810-824

R Failure of the GLC 2 or Loss of its Status Indication R 1. Possible Causes
_______________
R - GCU-2 (1XU2) R - GLC-2 (9XU2) R - wiring
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 24-22-34-000-001 R AMM 24-22-34-400-001 R AMM 24-22-55-000-001 R AMM 24-22-55-400-002 R R AMM 24-41-00-740-002 R ASM 24-22/03
R 3. Fault Confirmation
__________________
R A. Test
Removal of the GCU-1(2) (1XU1, 1XU2)
Installation of the GCU-1(2) (1XU1, 1XU2)
Removal of the Contactors (9XU1, 9XU2, 11XU1, 11XU2)
Installation of the Contactors (9XU1, 9XU2, 11XU1,
11XU2)
Operational Check of GAPCU via CFDS

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 GCU2 (1XU2) comes into view:
R - replace the GCU-2 (1XU2) (Ref. AMM TASK 24-22-34-000-001) and (Ref.
R AMM TASK 24-22-34-400-001).
　
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