_

 - do a check and repair the wiring of the ACS1 SPLY XDCR signal from the SEC1 COM side to the first terminal block, pins AA/12F and AA/12G (Ref. ASM 27-94/07).
 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 ∞∞27-90-00∞∞∞∞∞∞∞∞∞∞Page 237
 May 01/04R
 CES  Loss of the ACS1 Signal of the SEC1 MON Side

 1. Possible Causes
_______________
 - ELAC-1 (2CE1)

 - SEC-1 (1CE1)

 - wiring of the ACS1 SPLY XDCR signal from the SEC1 MON side to the COM side

 - wiring of the ACS1 SPLY MON signal from the SEC1 COM side to the first terminal block

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
27-90-00-810-801 Failure of an Alternating Current Supply (ACS)
 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 27-94-34-000-001 Removal of the SEC (1CE1,1CE2,1CE3)
 AMM 27-94-34-400-001 Installation of the SEC (1CE1,1CE2,1CE3)
 AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning)
 ASM 27-94/07

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the EFCS (ground scanning) (Ref. AMM TASK 27-96-00-740-001).
 4. Fault Isolation
_______________
 A. If the ground scanning gives at least two maintenance messages of the list below: SEC1 OR WIRING FROM L ELEV POS MON XDCR SEC1 OR WIRING FROM R ELEV POS MON XDCR SEC1 MON OR WIRING FROM THS ACTR XDCR2 9CE SEC1 OR WIRING FROM L G ELEV MODE XDCR 34CE1 SEC1 OR WIRING FROM R Y ELEV MODE XDCR 34CE2
 (1) Remove the ELAC1 (Ref. AMM TASK 27-93-34-000-001) and the SEC1 (Ref. AMM TASK 27-94-34-000-001).
 「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 ∞∞27-90-00∞∞∞∞∞∞∞∞∞∞Page 238
 May 01/04R
 CES

 (2) At the SEC1 receptacle, do a check of the resistance between the pin AB/9E and the pin AB/9F (Ref. ASM 27-94/07):
 (a) If the resistance is less than 10 Ohms:
 1 Do this procedure (Ref. TASK 27-90-00-810-801).

_ 2 Replace the ELAC-1 (2CE1) (Ref. AMM TASK 27-93-34-000-001) and
_
 (Ref. AMM TASK 27-93-34-400-001).

 3 Replace the SEC-1 (1CE1) (Ref. AMM TASK 27-94-34-000-001) and
_
 (Ref. AMM TASK 27-94-34-400-001).

 (b) If the resistance is more than 10 Ohms:
 - do a check of the wiring of the ACS1 SPLY XDCR signal from the SEC1 MON side to the COM side: . pins AE/10E and AE/10D to pins AB/8E and AB/8F (Ref. ASM 27-94/07).
 1 If the wiring is not correct:
_
 - repair it

 - install the ELAC1 (Ref. AMM TASK 27-93-34-400-001) and the SEC1 (Ref. AMM TASK 27-94-34-400-001).

 a If the fault continues:
_
 - replace the SEC-1 (1CE1) (Ref. AMM TASK 27-94-34-000-001) and (Ref. AMM TASK 27-94-34-400-001).
 2 If the wiring is correct:
_ a Replace the SEC-1 (1CE1) (Ref. AMM TASK 27-94-34-000-001)
_ and (Ref. AMM TASK 27-94-34-400-001).
 b Install the ELAC1 (Ref. AMM TASK 27-93-34-400-001).
_
 c If the fault continues:

_
 - do a check and repair the wiring of the ACS1 SPLY MON signal from the SEC1 COM side to the first terminal block, pins AB/9E and AB/9F (Ref. ASM 27-94/07).
 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 ∞∞27-90-00∞∞∞∞∞∞∞∞∞∞Page 239
 May 01/04R
 CES  Loss of the ACS1 Signal of the ELAC1 COM Side and SEC1 COM Side

 1. Possible Causes
_______________
 - ELAC-1 (2CE1)

 - SEC-1 (1CE1)

 - wiring of the ACS1 SPLY XDCR signal from the SEC1 COM side to the second terminal block

 2. Job Set-up Information
______________________
 A. Referenced Information

 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
　
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