A. If the test gives the maintenance message LGCIU1(5GA1) NLG DNLK SIGNAL/BSCU (10GG) or LGCIU2(5GA2) NLG DNLK SIGNAL/BSCU(10GG):
- do a check for a ground signal at pin A/11G of the BSCU (10GG) (Ref. ASM 32-42/01).
(1) If there is a ground signal:
- do a check for a ground signal at pin A/12D of the BSCU (10GG) (Ref. ASM 32-42/01).
(a) If there is a ground signal:
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) (Ref. AMM TASK 32-42-34-400-001).
(b) If there is no ground signal:
- replace the PROX SNSR-NLG DNLK, SYS 2 (19GA) (Ref. AMM TASK 32-31-73-000-005) (Ref. AMM TASK 32-31-73-400-005).
1 If the fault continues:
_
- do a check of the wiring from the BSCU (10GG) to the LGCIU2 (5GA2) pin A/12D to pin AB/12B (Ref. ASM 32-42/01).
a If there is continuity:
_
- replace the LGCIU-2 (5GA2) (Ref. AMM TASK 32-31-71-000-001) (Ref. AMM TASK 32-31-71-400-001).
b If there is no continuity:
_ - repair the related wiring.
(2) If there is no ground signal:
- replace the PROX SNSR-NLG DNLK, SYS 1 (18GA) (Ref. AMM TASK 32-31-73-000-001) (Ref. AMM TASK 32-31-73-400-001)
(a) If the fault continues:
- do a check of the wiring from the BSCU (10GG) to the LGCIU1 (5GA1) pin A/11G to pin AB/12B (Ref. ASM 32-42/01).
1 If there is continuity:
_
- replace the LGCIU-1 (5GA1) (Ref. AMM TASK 32-31-71-000-001) (Ref. AMM TASK 32-31-71-400-001).
a If the fault continues:
_
- replace the LGCIU-1 (5GA1) (Ref. AMM TASK 32-31-71-000-001) (Ref. AMM TASK 32-31-71-400-001).
2 If there is no continuity:
_ - repair the related wiring.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-149, 221-299, 401-499, ∞∞32-42-00∞∞∞∞∞∞∞∞∞∞Page 290
Aug 01/05 CESR **ON A/C ALL
B. Do the test given in Para. 3.A.
TASK 32-42-00-810-855
Loss of the BSCU BUS 3 SYS1 Input
1. Possible Causes
_______________
- BSCU (10GG)
- wiring from the BSCU (10GG) pin AA/13H, 13J to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 32-42-34-000-001 Removal of the Braking/Steering Control Unit (BSCU) (10GG) AMM 32-42-34-400-001 Installation of the Braking/Steering Control Unit
(BSCU) (10GG)
AMM 32-46-00-740-001 BITE Test of the BSCU
ASM 32-46/01
3. Fault Confirmation
__________________
A. Test Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001).
4. Fault Isolation
_______________
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-220, 301-399,
A. If the test gives the maintenance message BSCU : NO DATA FROM CFDIU:
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and (Ref. AMM TASK 32-42-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from the BSCU (10GG) pin AA/13H, 13J to the first terminal block (Ref. ASM 32-46/01).
R **ON A/C 106-149, 221-299, 401-499,
A. If the test gives the maintenance message CFDIU(1TW)/BSCU(10GG):
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and (Ref. AMM TASK 32-42-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from the BSCU (10GG) pin AA/13H, 13J to the first terminal block (Ref. ASM 32-46/01).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-42-00∞∞∞∞∞∞∞∞∞∞Page 292
Aug 01/05 CES
R **ON A/C ALL
B. Test
Do the test given in Para. 3.A.
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本文链接地址：A320 Trouble Shooting Manual 排故手册 起落架 LANDING GEAR 2(7)
