1. Possible Causes
_______________
- ELAC-2 (2CE2)
- SERVO CTL-L ELEVATOR, INBD G (34CE1)
- servovalve
- wiring of the L ELEV SV (ANO 1) signal from the ELAC 2 (2CE2) COM part, pins AB/2E, 2D to the ELAC 2 COM part, pins AA/2H, 2G
- wiring from the ELAC 2 (2CE2) COM part to the MON part
- wiring from the ELAC 2 (2CE2) MON part, pins AD/3C, 4C to the first
terminal block
- wiring of the SV XDCR SPLY signal
- wiring of the POS XDCR (ANI 3-1) signal
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 27-34-51-000-001 Removal of the Elevator Servo Control AMM 27-34-51-000-008 Removal of the Elevator Servo Control Actuator Servo
Valve AMM 27-34-51-400-001 Installation of the Elevator Servo Control AMM 27-34-51-400-003 Installation of the Elevator Servo Control Actuator
Servo Valve AMM 27-93-34-000-001 Removal of the ELAC (2CE1,2CE2) AMM 27-93-34-400-001 Installation of the ELAC (2CE1,2CE2) AMM 27-96-00-710-020 Operational Test of the Side Stick Assembly
(Activation for the BITE Test) AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning) ASM 27-93/08
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the side stick assembly (activation for the BITE test) (Ref. AMM TASK 27-96-00-710-020).
(2) Do the BITE test of the EFCS (ground scanning) (Ref. AMM TASK 27-96-00-740-001).
「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 ∞∞27-93-00∞∞∞∞∞∞∞∞∞∞Page A233
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4. Fault Isolation
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R
R A. If the test gives the maintenance message:
R ELAC 2 COM OR WIRING TO L G ELEV SERVO VLV 34CE1
R - replace the ELAC-2 (2CE2) (Ref. AMM TASK 27-93-34-000-001) and (Ref.
R AMM TASK 27-93-34-400-001).
R (1) If the fault continues:
R - replace the servovalve (Ref. AMM TASK 27-34-51-000-008) and (Ref.
R AMM TASK 27-34-51-400-003).
R (2) If the fault continues:
R (a) Do a check of the wiring of the L ELEV SV (ANO 1) signal from the
R ELAC 2 (2CE2) COM part, pins AB/2E, 2D to the ELAC 2 COM part,
R pins AA/2H, 2G (Ref. ASM 27-93/08):
R - if there is continuity see Para. (b)
R - if there is no continuity repair the above wiring.
R (b) Do a check of the wiring from the ELAC 2 (2CE2) COM part to the
R MON part from pins AA/2J, 2K to pins AD/3A, 4A (Ref. ASM 27-
93/08): R - if there is continuity see Para. (c) R - if there is no continuity repair the above wiring.
R (c) Do a check of the wiring from the ELAC 2 (2CE2) MON part, pins
R AD/3C, 4C to the first terminal block (Ref. ASM 27-93/08).
R - if there is continuity see Para. (d)
R - if there is no continuity repair the above wiring.
R (d) Do a check of the wiring of the SV XDCR SPLY signal, from the
R servocontrol (34CE1) to the first terminal block (Ref. ASM 27-
93/08). R - if there is continuity see Para. (e) R - if there is no continuity repair the above wiring.
R (e) Do a check of the wiring of the POS XDCR (ANI 3-1) signal, from R the ELAC 2 (2CE2) MON part to the servocontrol (34CE1) (Ref. ASM
27-93/08). R - if there is continuity see Para. (3) R - if there is no continuity repair the above wiring.
R (3) Replace the SERVO CTL-L ELEVATOR, INBD G (34CE1) (Ref. AMM TASK 27-R 34-51-000-001) and (Ref. AMM TASK 27-34-51-400-001). R
B. Do the test given in Para. 3.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞27-93-00∞∞∞∞∞∞∞∞∞∞Page A234
May 01/05 CES
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R
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Loss of the Signal of the Green Elevator-Servocontrol Servovalve by the ELAC 2
1. Possible Causes_______________
- ELAC-2 (2CE2)
- XDCR UNIT-ELEV POS, L (49CE1)
- SERVO CTL-L ELEVATOR, INBD G (34CE1)
- ANI 3-X analog input signal of the ELAC MON and SEC MON
- servovalve
- wiring of the LVDT POS (ANI 3-1) signal from the ELAC 2 (2CE2) to the first terminal block
- wiring of the POS RVDT MON signal from the transducer unit (49CE1) to the ELAC 2 (2CE2) 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 飞行操纵 3(30)
