- SDU (105RV1)

 - wiring of the DATA BUS INPUT ACARS signal

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 23-24-34-000-001 Removal of the ACARS Management Unit (MU) (1RB) AMM 23-24-34-400-001 Installation of the ACARS Management Unit (MU) (1RB) AMM 23-28-00-740-001 BITE Test of the Satellite Communication System AMM 23-28-34-000-001 Removal of the Satellite Data Unit (SDU) 105RV1 AMM 23-28-34-400-001 Installation of the Satellite Data Unit (SDU) 105RV1 ASM 23-28/06
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the SATCOM System (Ref. AMM TASK 23-28-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message ACARSMU(1RB)/SDU1(105RV1)
 - replace the MU-ACARS (1RB) (Ref. AMM TASK 23-24-34-000-001) and (Ref. AMM TASK 23-24-34-400-001).
 (1) If the fault continues:

 - replace the SDU (105RV1) (Ref. AMM TASK 23-28-34-000-001) and (Ref. AMM TASK 23-28-34-400-001).

 (2) If the fault continues:

 - remove the SATCOM SDU

 - remove the ACARS MU

 - do a check and repair the wiring of the DATA BUS INPUT ACARS signal (from the ACARS MU (1RB) pins AA/7G,7H and pins AA/2C,2D to the SDU (105RV1) pins AB/1G,1H and pins AB/1J,1K) (Ref. ASM 23-28/06)

 - install the SATCOM SDU

 - install the ACARS MU.

 「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, ∞∞23-28-00∞∞∞∞∞∞∞∞∞∞Page 213
 Aug 01/05 CES 5. Close-up

________
 A. Do the test given in Para. 3.

 TASK 23-28-00-810-812
 Loss of the ADIRU1 / SDU Interface
 1. Possible Causes
_______________
 - ADIRU-1 (1FP1)

 - SDU (105RV1)

 - wiring of the 429 BUS 2 INPUT signal

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 23-28-00-740-001 BITE Test of the Satellite Communication System AMM 23-28-34-000-001 Removal of the Satellite Data Unit (SDU) 105RV1 AMM 23-28-34-400-001 Installation of the Satellite Data Unit (SDU) 105RV1 AMM 34-12-34-000-001 Removal of the ADIRU (1FP1, 1FP2, 1FP3) AMM 34-12-34-400-001 Installation of the ADIRU (1FP1, 1FP2, 1FP3) ASM 23-28/06
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the SATCOM System (Ref. AMM TASK 23-28-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message ADIRU1(1FP1)/SDU1(5RV1):
 - replace the ADIRU-1 (1FP1) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
 (1) If the fault continues:

 - replace the SDU (105RV1) (Ref. AMM TASK 23-28-34-000-001) and (Ref. AMM TASK 23-28-34-400-001).

 (2) If the fault continues:

 - remove the SATCOM SDU

 - remove the ADIRS 1

 - do a check and repair the wiring of the 429 BUS 2 INPUT signal (from the ADIRS (1FP1) pins AB/5E,6E to the SDU (105RV1) pins AB/6A,6B) (Ref. ASM 23-28/06)

 - install the SATCOM SDU

 - install the ADIRS 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, ∞∞23-28-00∞∞∞∞∞∞∞∞∞∞Page 215
 Aug 01/05 CES 5. Close-up

________
 A. Do the test given in Para. 3.

 TASK 23-28-00-810-813

 Loss of the ADIRU2 / SDU Interface
 1. Possible Causes
_______________
 - ADIRU-2 (1FP2)

 - SDU (105RV1)

 - wiring of the 429 BUS 2 INPUT signal

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 23-28-00-740-001 BITE Test of the Satellite Communication System AMM 23-28-34-000-001 Removal of the Satellite Data Unit (SDU) 105RV1 AMM 23-28-34-400-001 Installation of the Satellite Data Unit (SDU) 105RV1 AMM 34-12-34-000-001 Removal of the ADIRU (1FP1, 1FP2, 1FP3) AMM 34-12-34-400-001 Installation of the ADIRU (1FP1, 1FP2, 1FP3) ASM 23-28/06
　
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