- If the source of the message is BSCU 2, do a check and repair the wiring from the BSCU (10GG) to the handwheel transmitter unit (2GC) pins AA/9A, 15A, 13A to pins A/U, B, V. (Ref. ASM 32-51/01)
「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 ∞∞32-51-00∞∞∞∞∞∞∞∞∞∞Page 209
Aug 01/05 CES
R B. If the test gives the maintenance message FO STEERING HANDWHEEL and if
R the TROUBLE SHOOTING DATA gives the fault code 786:
R - replace the XMTR UNIT-N/W STRG HANDWHEEL,F/O (2GC) (Ref. AMM TASK 32-
R 51-11-000-001) and (Ref. AMM TASK 32-51-11-400-001).
R (1) If the fault continues:
R - replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and (Ref.
R AMM TASK 32-42-34-400-001).
R (2) If the fault continues:
R - if the source of the message is BSCU 1, do a check and repair the
R wiring from the BSCU (10GG) to the handwheel transmitter unit (2GC)
R pins AA/10K, 1J, 14K to pins A/M, E, N. (Ref. ASM 32-51/01).
R - if the source of the message is BSCU 2, do a check and repair the
R wiring from the BSCU (10GG) to the handwheel transmitter unit (2GC)
R pins AA/10A, 1B, 14A to pins A/S, C, T. (Ref. ASM 32-51/01)
R **ON A/C ALL
C. Test
(1) Do the test given in Para. 3.A.(1).
TASK 32-51-00-810-805
Pushbutton of the CAPT Nosewheel-Steering Handwheel Inoperative
1. Possible Causes
_______________
- XMTR UNIT-N/W STRG HANDWHEEL,CAPT (1GC)
- BSCU (10GG)
- wiring from the handwheel transmitter unit (1GC) pin A/K to the ground terminal
- wiring from the BSCU (10GG) to the handwheel transmitter unit (1GC)
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 AMM 32-51-11-000-001 Removal of the Transmitter Unit - Nose Wheel Steering
Handwheel (1GC,2GC) AMM 32-51-11-400-001 Installation of the Transmitter Unit - Nose Wheel Steering Handwheel (1GC,2GC) ASM 32-51/01
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001).
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-220, 301-399,
A. If the test gives the maintenance message CAPT STEERING HANDWHEEL:
(1) Replace the XMTR UNIT-N/W STRG HANDWHEEL,CAPT (1GC) (Ref. AMM TASK 32-51-11-000-001) and (Ref. AMM TASK 32-51-11-400-001).
(2) 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).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-51-00∞∞∞∞∞∞∞∞∞∞Page 211
May 01/05 CES (3) If the fault continues:
- do a check for a ground signal at pin A/K of the handwheel transmitter unit (1GC) (Ref. ASM 32-51/01).
(a) If there is no ground signal:
- repair the wiring from the handwheel transmitter unit (1GC) pin A/K to the ground terminal (Ref. ASM 32-51/01).
(b) If there is a ground signal:
- do a check and repair the wiring from the BSCU (10GG) to the handwheel transmitter unit (1GC) pins AA/10G, 9G to A/J, H (Ref. ASM 32-51/01).
R **ON A/C 106-149, 221-299, 401-499,
A. If the test gives the maintenance message CAPT STEERING HDWL(1GC)/BSCU:
(1) Replace the XMTR UNIT-N/W STRG HANDWHEEL,CAPT (1GC) (Ref. AMM TASK 32-51-11-000-001) and (Ref. AMM TASK 32-51-11-400-001).
(2) 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).
(3) If the fault continues:
- do a check for a ground signal at pin A/K of the handwheel transmitter unit (1GC) (Ref. ASM 32-51/01).
(a) If there is no ground signal:
- repair the wiring from the handwheel transmitter unit (1GC) pin A/K to the ground terminal (Ref. ASM 32-51/01). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 起落架 LANDING GEAR 2(99)
