(2) If the fault continues:

 - remove the SATCOM SDU

 - remove the CFDIU

 - do a check and repair the wiring (from the CFDIU (1TW) pins AA/13D,13E to the SDU (105RV1) AB/4E,4F and from the CFDIU (1TW) pins AA/11F,11G to the SDU (105RV1) AB/4C,4D) (Ref. ASM 23-28/05)

 - install the SATCOM SDU

 - install the CFDIU.

 B. Do the test given in Para. 3.
 「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 221
 Aug 01/05 CES

 TASK 23-28-00-810-816

 Failure of the SATCOM A/C Addres (ICAO)
 1. Possible Causes
_______________
 - SDU (105RV1)
 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 ASM 23-28/02
 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
 WRG: ICAO ADDRESS PIN PROG/ SDU1(105RV1):

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

 - do a check and repair if necessary the wiring of the pin program of the SDU (105RV1) (Ref. ASM 23-28/02)

 - install the SDU (105RV1)

 (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).
 5. Close-up
________
 A. Do the test given in Para. 3.
 「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 222
 Aug 01/05 CES TASK 23-28-00-810-817

 Defective Coaxial Cables between the SATCOM (105RV1) and the ANTENNA (116RV1)
 1. Possible Causes
_______________
 - SDU (105RV1)

 - ANTENNA (116RV1)

 - coaxial cables 126RV and 124RV between the SATCOM (105RV1) and the ANTENNA (116RV1).

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
ESPM 205320 AMM 23-28-00-740-001 BITE Test of the Satellite Communication System AMM 23-28-13-000-001 Removal of the Antenna 116RV1 AMM 23-28-13-400-001 Installation of the Antenna 116RV1 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 23-28/02
 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 SDU1(105RV1)RX COAX
 - replace the SDU (105RV1) (Ref. AMM TASK 23-28-34-000-001) and (Ref. AMM TASK 23-28-34-400-001).
 (1) If the fault continues:
 - do a check for continuity of the coaxial cables 126RV and 124RV between the SATCOM (105RV1) and the ANTENNA (116RV1). (Ref. ASM 23-28/02)
 (a) If there is no continuity:

 - replace the coaxial cable (Ref. ESPM 205320).

 (b) If there is continuity:

 - replace the ANTENNA (116RV1) (Ref. AMM TASK 23-28-13-000-001) and (Ref. AMM TASK 23-28-13-400-001).
 「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, ∞∞23-28-00∞∞∞∞∞∞∞∞∞∞Page 223
 Aug 01/05 CES 5. Close-up

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

 TASK 23-28-00-810-822
 Loss of the Data between MCDU 1, 2, 3 and the SDU
 1. Possible Causes
_______________
 - SDU (105RV1)

 - wiring of the DATA BUS TO MCDU1,2,3 signal

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
　
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