- release the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
 B. With the EIS DMC selector switch (18WT) on the SWITCHING panel (8VU) at F/O/3.
 (1) If the test gives the maintenance message DMC3 : RECONF WIRING and there is no F/O PFD image:
 - replace the PFD-F/O (2WT2) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001).
 (a) If the fault continues:
 - do a check of the wiring from the F/0 PFD (2WT2) to the DMC2 (1WT2): . pins AA/21, 22 to pins AB/10B, 10C . pins AA/23, 24 to pins AB/10D, 10E (Ref. ASM 31-61/04).
 1 If there is no continuity:
_ - repair the wiring.

 2 If there is continuity:
_

 - do a check and repair the wiring from the DMC2 (1WT2) to the DMC3 (1WT3): . pins AB/10F, 10G to pins AB/9D, 9E . pins AB/10H, 10J to pins AB/9B, 9C (Ref. ASM 31-61/04).
 a If the fault continues:
_

 - replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
 (2) If the test gives the maintenance message DMC3 : RECONF WIRING and there is no F/0 ND image:
 - replace the ND-F/O (3WT2) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001).
 (a) If the fault continues:
 - do a check of the wiring from the F/0 ND (3WT2) to the DMC2 (1WT2): . pins AA/21, 22 to pins AB/9B, 9C . pins AA/23, 24 to pins AB/9D, 9E (Ref. ASM 31-61/04).
 1 If there is no continuity:
_ - repair the wiring.

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-63-81∞∞∞∞∞∞∞∞∞∞Page 216
 Feb 01/98 CES a If the fault continues:

 2_ If there is continuity:
 - do a check and repair the wiring from the DMC2 (1WT2) to the
 DMC3 (1WT3):
 . pins AB/9H, 9J to pins AB/10B, 10C
 . pins AB/9F, 9G to pins AB/10D, 10E (Ref. ASM 31-61/04).

_

 - replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
 (3) If the test gives the maintenance message DMC3 : RECONF WIRING and there is no lower ECAM DU image:
 - replace the DU-ECAM, LOWER (4WT2) (Ref. AMM TASK 31-63-22-000-001) and (Ref. AMM TASK 31-63-22-400-001).
 (a) If the fault continues:
 - do a check of the wiring from the lower ECAM DU (4WT2) to the DMC2 (1WT2): . pins AA/35, 36 to pins AB/11B, 11C . pins AA/38, 39 to pins AB/11D, 11E (Ref. ASM 31-61/04).
 1 If there is no continuity:
_ - repair the wiring.

 2 If there is continuity:
_

 - do a check and repair the wiring from the DMC2 (1WT2) to the DMC3 (1WT3): . pins AB/11F, 11G to pins AB/11D, 11E . pins AB/11H, 11J to pins AB/11B, 11C (Ref. ASM 31-61/04).
 a If the fault continues:
_

 - replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
 C. Do the test given in Para. 3.

 Failure of the Upper ECAM DU Detected by the DMC3
 1. Possible Causes
_______________
 - DMC-3 (1WT3)

 - DU-ECAM, UPPER (4WT1)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-60-00-740-002 EIS Input Test
 AMM 31-63-22-000-001 Removal of the Display Unit
 (2WT1,2WT2,3WT1,3WT2,4WT1,4WT2)
 AMM 31-63-22-400-001 Installation of the Display Unit

 (2WT1,2WT2,3WT1,3WT2,4WT1,4WT2)
 AMM 31-63-34-000-001 Removal of the DMC (1WT1,1WT2,1WT3)
 AMM 31-63-34-400-001 Installation of the DMC (1WT1,1WT2,1WT3)
 ASM 31-61/04

 3. Fault Confirmation
__________________
 A. Test
 Do the EIS input test (Ref. AMM TASK 31-60-00-740-002).

 4. Fault Isolation
_______________
 A. If the EIS DMC selector switch (18WT) on the SWITCHING panel (8VU) is at CAPT/3 and if the test gives the maintenance message DMC3-DU ECAM1 LINK: - on the ECAM control panel, set the UPPER DISPLAY potentiometer to OFF
 and do the test given in Para. 3.
 (1) If this test gives the maintenance message DMC3-DU ECAM1 LINK:
 - replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
 (a) If the fault continues:
 - do a check of the wiring from DMC1 (1WT1) pins AB/11B, 11C to the first terminal block (Ref. ASM 31-61/04).
 1 If there is no continuity:
　
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