- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and (Ref. AMM TASK 32-42-34-400-001).
(2) If the fault continues:
- do a check and repair the wiring from the pressure switch (1151GN) to the BSCU (10GG) pin A/C to pin AA/13F (Ref. ASM 32-42/03).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-42-00∞∞∞∞∞∞∞∞∞∞Page 237
May 01/05 CESR **ON A/C 106-149, 221-299, 401-499,
A. If the PFR gives the maintenance message GREEN SYSTEM PRESS SWITCH (1151GN):
- replace the PRESS SW-FLT CTL, G (1151GN) (Ref. AMM TASK 29-32-12-000-001) and (Ref. AMM TASK 29-32-12-400-001).
(1) If the fault continues:
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and (Ref. AMM TASK 32-42-34-400-001).
(2) If the fault continues:
- do a check and repair the wiring from the pressure switch (1151GN) to the BSCU (10GG) pin A/C to pin AA/13F (Ref. ASM 32-42/03).
**ON A/C ALL
B. After the subsequent flight, make sure that the fault does not continue.
TASK 32-42-00-810-824
Loss of the 115VAC Power Supply of the BSCU-SYS 1
1. Possible Causes
_______________
- BSCU (10GG)
- wiring from the BSCU (10GG) pin AB/15H to the ground terminal
- wiring from the BSCU (10GG) pin AB/14H to the circuit breaker (1GG)
- C/B-HYD/BRK & STRG SYS 1/CTL (1GG)
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 32-42/01
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test with the BSCU channel that is the source of the fault message (Ref. AMM TASK 32-46-00-740-001).
(a) If the circuit breaker (1GG) is open:
- refer to Para. 4.A.(2)
4. Fault Isolation
_______________
A. If the BITE test is not available:
- do a check of the circuit breaker (1GG) status:
(1) If the circuit breaker is closed:
- do a check for 115VAC at pin AB/14H of the BSCU (10GG) (Ref. ASM 32-42/01).
(a) If there is 115VAC:
- do a check for a ground signal at pin AB/15H of the BSCU (10GG) (Ref. ASM 32-42/01).
1 If there is no ground signal:
_
- repair the wiring from the BSCU (10GG) pin AB/15H to the ground terminal (Ref. ASM 32-42/01).
「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 239
May 01/05R CES
INTENTIONALLY BLANK
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R ∞∞32-42-00∞∞∞∞∞∞∞∞∞∞Page 240
2_ If there is ground signal:
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and
(Ref. AMM TASK 32-42-34-400-001).
(b) If there is no 115VAC:
- do a check of the wiring from the BSCU (10GG) pin AB/14H to the circuit breaker (1GG) (Ref. ASM 32-42/01).
1 If there is no continuity:
_
- repair the related wiring. 2 If there is continuity:
_
- replace the C/B-HYD/BRK & STRG SYS 1/CTL (1GG) (Ref. ASM 32-42/01).
(2) If the circuit breaker is opened:
- close the circuit breaker.
(a) If it trips:
- 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 for a short to ground at the wiring from the BSCU (10GG) pin AB/14H to the circuit breaker (1GG) (Ref. ASM 32-42/01).
a If there is a short to ground:
_
- repair the related wiring. b If there is no a short to ground:
_ - replace the circuit breaker (1GG) (Ref. ASM 32-42/01).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 起落架 LANDING GEAR 1(109)
