A320 Trouble Shooting Manual 排故手册 信息系统(19)

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_______________
 A. If, during the operational test, the ATSU cannot control the VHF3 frequency through one RMP:
 - do a check for a ground signal at pin AA/12B of the ATSU (1TX1) (Ref. ASM 46-21/04).
 (1) If there is no ground signal:
 - replace the ATSU (1TX1) (Ref. AMM TASK 46-21-34-000-001) and (Ref. AMM TASK 46-21-34-400-001).
 (a) If there is a ground signal:
 - replace the XCVR-VHF, 3 (1RC3) (Ref. AMM TASK 23-12-33-000-001) and (Ref. AMM TASK 23-12-33-400-001).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-149, 151-199, 201-299, 301-399, ∞∞46-21-00∞∞∞∞∞∞∞∞∞∞Page 232
 401-499, Aug 01/05 CES (b) If the fault continues:

 - do a check and repair the wiring of the DFS PORT SELECT DISCRETE from the ATSU (1TX1) pin AA/12B to the VDR3 (1RC3) pin AB/11D (Ref. ASM 46-21/04).
 1_ If the fault continues:
 - do a check and repair the wiring of ATSU SYS5 OUTPUT BUS
 from the ATSU (1TX1) pins AA/1E,1F to the VDR3 (1RC3) pins

 AB/11A,11B (Ref. ASM 46-21/06).
 B. Do the test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-149, 151-199, 201-299, 301-399, ∞∞46-21-00∞∞∞∞∞∞∞∞∞∞Page 233
 401-499, Aug 01/05 CES

 Loss of the SDAC1 Input Signal Detected by the ATSU
 1. Possible Causes
_______________
 - SDAC-1 (1WV1)

 - ATSU (1TX1)

 - wiring of the SDAC 1 DATA BUS

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 31-55-34-000-001 Removal of the SDAC (1WV1,1WV2)
 AMM 31-55-34-400-001 Installation of the SDAC (1WV1,1WV2)
 AMM 46-21-00-740-001 BITE Test of the ATIMS
 AMM 46-21-34-000-001 Removal of the Air Traffic Service Unit (ATSU) (1TX1)
 AMM 46-21-34-400-001 Installation of the Air Traffic Service Unit (ATSU)

 (1TX1)
 ASM 46-21/05

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the ATIMS (Ref. AMM TASK 46-21-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message SDAC1(1WV1)/ATSU1(1TX1):
 - replace the SDAC-1 (1WV1) (Ref. AMM TASK 31-55-34-000-001) and (Ref. AMM TASK 31-55-34-400-001).
 (1) If the fault continues:
 - replace the ATSU (1TX1) (Ref. AMM TASK 46-21-34-000-001) and (Ref. AMM TASK 46-21-34-400-001).
 (a) If the fault continues:
 - remove the SDAC 1 and the ATSU

 - do a check and repair the wiring of the SDAC 1 DATA BUS: between pins AB/8J,8K of the SDAC 1 and pins AA/6G,6H of the ATSU (Ref. ASM 46-21/05)

 - install the SDAC 1 and the ATSU.

 B. Do the test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-149, 151-199, 201-299, 301-399, ∞∞46-21-00∞∞∞∞∞∞∞∞∞∞Page 234
 401-499, Aug 01/05 CES Loss of the SDAC2 Input Signal Detected by the ATSU

 1. Possible Causes
_______________
 - SDAC-2 (1WV2)

 - ATSU (1TX1)

 - wiring of the SDAC 2 DATA BUS

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 31-55-34-000-001 Removal of the SDAC (1WV1,1WV2)
 AMM 31-55-34-400-001 Installation of the SDAC (1WV1,1WV2)
 AMM 46-21-00-740-001 BITE Test of the ATIMS
 AMM 46-21-34-000-001 Removal of the Air Traffic Service Unit (ATSU) (1TX1)
 AMM 46-21-34-400-001 Installation of the Air Traffic Service Unit (ATSU)

 (1TX1)
 ASM 46-21/05

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the ATIMS (Ref. AMM TASK 46-21-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message SDAC2(1WV2)/ATSU1(1TX1):
 - replace the SDAC-2 (1WV2) (Ref. AMM TASK 31-55-34-000-001) and (Ref. AMM TASK 31-55-34-400-001).
　
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