4. Fault Isolation
_______________

 A. If the test gives the maintenance message: SEC2 OR WIRING FROM R Y ELEV POS XDCR 34CE2
 - replace the SEC-2 (1CE2) (Ref. AMM TASK 27-94-34-000-001) and (Ref. AMM TASK 27-94-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring of the POS XDCR COM (ANI 2-2) signal from the SEC 2 (1CE2) to the first terminal block (Ref. ASM 27-94/08).
 B. Do the tests 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 ∞∞27-30-00∞∞∞∞∞∞∞∞∞∞Page 269
 Aug 01/00R
 CES  Failure of the Right Elevator Position MON Transducer

 1. Possible Causes
_______________
 - XDCR UNIT-ELEV POS, R (49CE2)

 - wiring of the POS RVDT MON SPLY signal

 - wiring of the POS RVDT MON V1, V2 signals

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
27-90-00-810-824 Loss of the ACS1 Signal of the ELAC2 MON Side and
 SEC2 MON Side
 31-32-00-810-933 Failure of the Analog Links
 AMM 27-92-13-000-001 Removal of the Elevator Servocontrol Position

 Transducer Unit 49CE1, 49CE2 AMM 27-92-13-400-001 Installation of the Elevator Servocontrol Position Transducer Unit 49CE1, 49CE2 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 27-93/07
 ASM 27-93/08
 ASM 27-94/07

 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).

 (a) If the ground scanning gives the maintenance message: R R ELEV POS MON XDCR OF ELAC2/SEC2
 - refer to Para. Fault Isolation.
 (b) If the ground scanning gives at least two maintenance messages of the list below: L B ELEV MODE XDCR 34CE3 L ELEV POS MON XDCR OF ELAC2/SEC2 R B ELEV MODE XDCR 34CE4
R R ELEV POS MON XDCR OF ELAC2/SEC2
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞27-30-00∞∞∞∞∞∞∞∞∞∞Page 270
 Aug 01/05 CES ELAC2 MON OR INPUT OF THS ACTR XDCR1 9CE SEC2 MON OR INPUT OF THS ACTR XDCR3 9CE

 - do this trouble shooting procedure (Ref. TASK 27-90-00-810-824).
 4. Fault Isolation
_______________
R A. If the test gives the maintenance message R ELEV POS MON XDCR OF R ELAC2/SEC2:
 - disconnect and cross the electrical connectors of the elevator position transducer unit (49CE2) (Ref. ASM 27-93/08) and do the test given in Para. 3.
 NOTE : After the test connect the electrical connectors on their initial
____
 plugs.

 (1) If the fault continues:
 - do the trouble shooting procedure (Ref. TASK 31-32-00-810-933) related to the ANI 2-X analog input signal of the ELAC COM and SEC COM (Ref. ASM 27-93/07) and (Ref. ASM 27-94/07).
R (2) If the test gives the maintenance message R ELEV POS MON XDCR OF R ELAC1/SEC1:
 - replace the XDCR UNIT-ELEV POS, R (49CE2) (Ref. AMM TASK 27-92-13-000-001) and (Ref. AMM TASK 27-92-13-400-001).
 NOTE : The resistance of primary and secondary windings must be
____
 between 30 ohms and 500 ohms.

R (3) If the test gives the maintenance message R ELEV POS MON XDCR OF R ELAC2/SEC2:
 (a) Do a check of the wiring of the POS RVDT MON SPLY signal from the transducer unit (49CE2) plug A to the first terminal block (Ref. ASM 27-93/08):

 - if there is continuity, see Para. (b)

 - if there is no continuity, repair the above wiring.

 (b) Do a check and repair the wiring of the POS RVDT MON V1, V2 signals from the transducer unit (49CE2) plug A to the first terminal block (Ref. ASM 27-93/08).

 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 ∞∞27-30-00∞∞∞∞∞∞∞∞∞∞Page 271
　
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