(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 panel 8VU is at CAPT/3 and the test gives the maintenance message: DMC3: NO CHECK ATT MSG - on the panel 301VU, push the CAPT PFD/ND XFR pushbutton switch (9WT1)
 - do the test given in Para. 3.
 (1) If this test gives the maintenance message:
 DMC3: NO CHECK ATT MSG

 - 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 the DMC3 (1WT3) to the DMC1 (1WT1): . pins AB/9B, 9C to pins AB/10J, 10H . pins AB/9D, 9E to pins AB/10F, 10G (Ref. ASM 31-61/04).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-63-81∞∞∞∞∞∞∞∞∞∞Page 265
 Feb 01/05R CES

 1 If there is no continuity:
_ - repair the wiring.

 2 If there is continuity:
_

 - do a check of the wiring from DMC1 (1WT1) pins AB/10B, 10C to the first terminal block (Ref. ASM 31-61/04).
 a If there is no continuity:
_ - repair the wiring.

 b If there is continuity:
_

 - do a check and repair the wiring from DMC1 (1WT1) pins AB/10D, 10E to the first terminal block (Ref. ASM 31-61/04).
 (2) If this test gives no maintenance message:
 - replace the PFD-CAPT (2WT1) (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 CAPT PFD (2WT1) pins AA/21, 22 to the first terminal block (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 CAPT PFD (2WT1) pins AA/23, 24 to the first terminal block (Ref. ASM 31-61/04).
 B. If the EIS DMC selector switch (18WT) on the panel 8VU is at F/O/3 and the test gives the maintenance message: DMC3: NO CHECK ATT MSG - on the panel 500VU, push the F/O PFD/ND XFR pushbutton switch (9WT2)
 - do the test given in Para. 3.
 (1) If this test gives the maintenance message:
 DMC3: NO CHECK ATT MSG

 - 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 the DMC3 (1WT3) to the DMC2 (1WT2): . pins AB/9B, 9C to pins AB/10J, 10H . pins AB/9D, 9E to pins AB/10F, 10G (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 266
 Feb 01/05R CES

 2 If there is continuity:
_

 - do a check of the wiring from DMC2 (1WT2) pins AB/10B, 10C to the first terminal block (Ref. ASM 31-61/04).
 a If there is no continuity:
_ - repair the wiring.

 b If there is continuity:
_

 - do a check and repair the wiring from DMC2 (1WT2) pins AB/10D, 10E to the first terminal block (Ref. ASM 31-61/04).
 (2) If this test gives no maintenance message:
 - 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 F/O PFD (2WT2) pins AA/21, 22 to the first terminal block (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 F/O PFD (2WT2) pins AA/23, 24 to the first terminal block (Ref. ASM 31-61/04).
 C. 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 ∞∞31-63-81∞∞∞∞∞∞∞∞∞∞Page 267
 Feb 01/05R
 CES  Failure of the Upper ECAM DU Pin Programming Detected by the DMC3

 1. Possible Causes
_______________
 - DU-ECAM, UPPER (4WT1)

 - ground signals at upper ECAM DU (4WT1) connector AA

 2. Job Set-up Information
　
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