- If the resistance values are in the specified limits: Install the ELAC1 (Ref. AMM TASK 27-93-34-400-001).
2 If the resistance values are in the specified limits:
_
a Repair the wiring of the SOL VLV1 signal from the
_ servocontrol (34CE2) to the ELAC1 (2CE1), from the pin C/K to the pin AB/14K and from the pin C/L to the pin AE/14B (Ref. ASM 27-93/07):
b Install the ELAC1 (Ref. AMM TASK 27-93-34-400-001).
_
(c) If the resistance values are in the specified limits:
- See Para. (3).
(3) At the ELAC 1 receptacle, do a check of the insulation between pin AB/14K (pin AE/14B) and the ground.
NOTE : The resistance must be more than 100 Megohms.
____
(a) If the resistance is more than 100 Megohms:
- Replace the ELAC-1 (2CE1) (Ref. AMM TASK 27-93-34-000-001) and (Ref. AMM TASK 27-93-34-400-001).
1 If the fault continues:
_ . Replace the solenoid valve (Ref. AMM TASK 27-34-51-000-005) and (Ref. AMM TASK 27-34-51-400-004).
2 If the fault continues:
_ . Replace the SERVO CTL-R ELEVATOR, INBD Y (34CE2) (Ref. AMM TASK 27-34-51-000-001) and (Ref. AMM TASK 27-34-51-400-001).
「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 ∞∞27-93-00∞∞∞∞∞∞∞∞∞∞Page A279
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3 do a check of the wiring from the ELAC1 (2CE1) COM part to the
_ ELAC1 COM part, from the pin AB/13K to the pin AB/13F (Ref. ASM 27-93/07):
a If the wiring is correct, see Para. 4_
_
b If the wiring is not correct:
_
- repair it
- install the ELAC1 (Ref. AMM TASK 27-93-34-400-001)
4 do a check of the wiring from the ELAC1 (2CE1) COM part to the
_ ELAC1 MON part, from the pin AB/13E to the pin AE/12D (Ref. ASM 27-93/07):
a If the wiring is correct, see Para. 5_
_
b If the wiring is not correct:
_
- repair it
- install the ELAC1 (Ref. AMM TASK 27-93-34-400-001)
5 do a check and repair the wiring from the ELAC1 (2CE1) MON
_ part pins AE/13B and AE/12C to the first terminal block (Ref. ASM 27-93/07):
6 Install the ELAC-1 (2CE1) (Ref. AMM TASK 27-93-34-400-001).
_
(b) If the resistance is less than 100 Megohms:
- at the SERVO CTL-R ELEVATOR, INBD Y (34CE2), do a check of the insulation of the solenoid valve between pin C/K (pin C/L) and the ground.
1 If the resistance is less than 100 Megohms:
_ Replace the solenoid valve (Ref. AMM TASK 27-34-51-000-005) and (Ref. AMM TASK 27-34-51-400-004).
a Do again a check of the insulation of the solenoid valve
_ between pin C/K (pin C/L) and the ground. If the resistance is less than 100 Megohms: . Replace the SERVO CTL-R ELEVATOR, INBD Y (34CE2) (Ref. AMM TASK 27-34-51-000-001) and (Ref. AMM TASK 27-34-51-400-001). . Replace the ELAC-1 (2CE1) (Ref. AMM TASK 27-93-34-000-001) and (Ref. AMM TASK 27-93-34-400-001).
2 If the resistance is more than 100 Megohms:
_
a Repair the wiring of the solenoid valve signal from the
_ SERVO CTL-R ELEVATOR, INBD Y (34CE2) to the ELAC-1 (2CE1).
b Replace the ELAC-1 (2CE1) (Ref. AMM TASK 27-93-34-000-001)
_ and (Ref. AMM TASK 27-93-34-400-001).
「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 ∞∞27-93-00∞∞∞∞∞∞∞∞∞∞Page A280
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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 A281
Feb 01/03R
CES Loss of the Signal of the Right Yellow Elevator-Servocontrol Solenoid Valve by the ELAC 1
CAUTION : DO NOT SWAP FLIGHT CONTROL COMPUTERS. IF THERE IS A SHORT CIRCUIT,
_______ YOU WILL CAUSE DAMAGE TO A SERVICEABLE COMPUTER WHEN YOU SWAP THEM.
1. Possible Causes
_______________
- SERVO CTL-R ELEVATOR, INBD Y (34CE2)
- ELAC-1 (2CE1)
- ELAC-2 (2CE2)
- solenoid valve of the servocontrol 34CE2
- wiring of the SOL VLV1 signal from the servocontrol (34CE2) to the ELAC1 (2CE1)
- wiring from the ELAC1 (2CE1) COM part to the ELAC1 COM part
- wiring from the ELAC1 (2CE1) COM part to the ELAC1 MON part
- wiring from the ELAC1 (2CE1) MON part pins AE/13B and AE/12C to the first terminal block
2. Job Set-up Information
______________________
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