- replace the RMP-COM/NAV FREQ SEL, 1 (1RG1) (Ref. AMM TASK 23-13-13-000-001) and (Ref. AMM TASK 23-13-13-000-001).
(1) If the fault continues:
- repair the wiring of the DFS PORT SELECT DISCRETE from the RMP1 (1RG1) pin A/F to the first terminal block (Ref. ASM 46-21/04).
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 227
401-499, Aug 01/05 CES
Loss of the FWC2 Input Signal Detected by the ATSU
1. Possible Causes
_______________
- FWC-2 (1WW2)
- ATSU (1TX1)
- wiring of the FWC DATA BUS
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 31-53-34-000-001 Removal of the Flight Warning Computer (FWC) (1WW1,1WW2) AMM 31-53-34-400-001 Installation of the Flight Warning Computer (FWC)
(1WW1,1WW2) 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 FWC2(1WW2)/ATSU1(1TX1):
- replace the FWC-2 (1WW2) (Ref. AMM TASK 31-53-34-000-001) and (Ref. AMM TASK 31-53-34-400-001).
(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 FWC 2 and the ATSU
- do a check and repair the wiring of the FWC DATA BUS: between pins AB/12J,12K of the FWC 2 and pins AB/6C,6D of the ATSU (Ref. ASM 46-21/05)
- install the FWC 2 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 228
401-499, Aug 01/05 CES Loss of the Frequency Control by the ATSU on the RMP2
1. Possible Causes
_______________
- RMP-COM/NAV FREQ SEL, 2 (1RG2)
- wiring of the DFS PORT SELECT DISCRETE
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 23-13-13-000-001 Removal of the Radio Management Panel (CRMP) (1RG1, 1RG2, 1RG3) AMM 23-13-13-400-001 Installation of the Radio Management Panel (CRMP)
(1RG1, 1RG2, 1RG3) AMM 46-21-00-710-001 Operational Test of the ATSU ASM 46-21/04
3. Fault Confirmation
__________________
A. Test
(1) Do the fifth part of the operational test of the ATSU (Ref. AMM TASK 46-21-00-710-001).
4. Fault Isolation
_______________
A. If during the operational test, the ATSU cannot control the VHF3
frequency through the RMP2 only:
- replace the RMP-COM/NAV FREQ SEL, 2 (1RG2) (Ref. AMM TASK 23-13-13-000-001) and (Ref. AMM TASK 23-13-13-400-001).
(1) If the fault continues:
- repair the wiring of the DFS PORT SELECT DISCRETE from RMP2 (1RG2) pin A/F to the first terminal block (Ref. ASM 46-21/04).
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 229
401-499, Aug 01/05 CES
Loss of the Data Loader Signal Detected by the ATSU
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