- replace the CONT-AIR COND SYSTEM 1 (47HH) (Ref. AMM TASK 21-61-34-000-002) and (Ref. AMM TASK 21-61-34-400-002).

 (2) If the fault continues:

 - replace the CONT-AIR COND SYSTEM 2 (57HH) (Ref. AMM TASK 21-61-34-000-002) and (Ref. AMM TASK 21-61-34-400-002).
 B. Do the test as given in the Para. 3.A.
 「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, ∞∞21-61-00∞∞∞∞∞∞∞∞∞∞Page B224
 Aug 01/05 CES

 TASK 21-61-00-810-892

 ACSC1/ACSC2 Bus 2 Fault
 1. Possible Causes
_______________
 - CONT-AIR COND SYSTEM 1 (47HH)

 - CONT-AIR COND SYSTEM 2 (57HH)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 21-61-00-710-001 Operational Test of the Pack Temperature-Control System AMM 21-61-34-000-002 Removal of the Air-Conditioning System Controller (47HH, 57HH) AMM 21-61-34-400-002 Installation of the Air-Conditioning System Controller (47HH, 57HH) ASM 21-61/03
 3. Fault Confirmation
__________________
 A. Do the operational test of the pack temperature-control system (Ref. AMM TASK 21-61-00-710-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message ACSC1(47HH)/ACSC2(57HH) /WRG: ACSC1 BUS2 TO ACSC2:
 - do a check and repair the wiring (Ref. ASM 21-61/03) from:

 - the ACSC1 (47HH) connector AA/6E to the ACSC2 (57HH) connector AA/4E,

 - the ACSC1 (47HH) connector AA/6F to the ACSC2 (57HH) connector AA/4F.

 (1) If the fault continues:

 - replace the CONT-AIR COND SYSTEM 1 (47HH) (Ref. AMM TASK 21-61-34-000-002) and (Ref. AMM TASK 21-61-34-400-002).

 (2) If the fault continues:

 - replace the CONT-AIR COND SYSTEM 2 (57HH) (Ref. AMM TASK 21-61-34-000-002) and (Ref. AMM TASK 21-61-34-400-002).
 B. Do the test as given in the Para. 3.A.
 「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, ∞∞21-61-00∞∞∞∞∞∞∞∞∞∞Page B225
 Aug 01/05 CES

 TASK 21-61-00-810-893

 ACSC2/ACSC1 Buses Fault
 1. Possible Causes
_______________
 - CONT-AIR COND SYSTEM 2 (57HH)

 - CONT-AIR COND SYSTEM 1 (47HH)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 21-61-00-710-001 Operational Test of the Pack Temperature-Control System AMM 21-61-34-000-002 Removal of the Air-Conditioning System Controller (47HH, 57HH) AMM 21-61-34-400-002 Installation of the Air-Conditioning System Controller (47HH, 57HH) ASM 21-61/03
 3. Fault Confirmation
__________________
 A. Do the operational test of the pack temperature-control system (Ref. AMM TASK 21-61-00-710-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message ACSC2(57HH)/ACSC1(47HH) /WRG: ACSC2 BUSES TO ACSC1:
 - do a check and repair the wiring (Ref. ASM 21-61/03) from:

 - the ACSC2 (57HH) connector AA/5E to the ACSC1 (47HH) connector AA/3F,

 - the ACSC2 (57HH) connector AA/5F to the ACSC1 (47HH) connector AA/3G,

 - the ACSC2 (57HH) connector AA/6E to the ACSC1 (47HH) connector AA/4E,

 - the ACSC2 (57HH) connector AA/6F to the ACSC1 (47HH) connector AA/4F.

 (1) If the fault continues:

 - replace the CONT-AIR COND SYSTEM 2 (57HH) (Ref. AMM TASK 21-61-34-000-002) and (Ref. AMM TASK 21-61-34-400-002).

 (2) If the fault continues:

 - replace the CONT-AIR COND SYSTEM 1 (47HH) (Ref. AMM TASK 21-61-34-000-002) and (Ref. AMM TASK 21-61-34-400-002).
 B. Do the test as given in the Para. 3.A.
 「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, ∞∞21-61-00∞∞∞∞∞∞∞∞∞∞Page B226
 Aug 01/05 CES

 TASK 21-61-00-810-894

 ACSC1/ACSC2 Buses Fault
 1. Possible Causes
_______________
　
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