- DMC-3 (1WT3)
- P/BSW-PFD/ND XFR, F/O (9WT2)
- P/BSW-PFD/ND XFR, F/O (9WT2)
- RELAY BOX-F/O PFD-ND XFR (20WT2)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-60-00-860-001 EIS Start Procedure
AMM 31-60-00-860-002 EIS Stop Procedure
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 31-68/01
3. Fault Confirmation
__________________
A. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
121VU EIS/RLY/BOX/F/O 17WT2 R07
**ON A/C ALL
121VU EIS/ND/F/O/SWTG 23WT2 R06 121VU EIS/PFD/F/O/SWTG 22WT2 R05 R
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-63-82∞∞∞∞∞∞∞∞∞∞Page 238
Aug 01/05 CES
B. Job Set-up
(1) Do the EIS start procedure (F/O PFD and F/O ND only) (Ref. AMM TASK 31-60-00-860-001).
(2) When the PFD and the ND images come into view on the F/O PFD and the F/O ND:
- push the F/O PFD/ND XFR pushbutton switch (9WT2) on the panel 500VU.
C. Test
Make sure that the transfer is not possible.
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
A. If the transfer is not possible:
- Make sure that the circuit breaker EIS/RLY/BOX/F/O (17WT2) is not tripped or faulty
- Make sure that the circuit breaker EIS/PFD F/O/SWTG (22WT2) is not tripped or faulty
- Make sure that the circuit breaker EIS/ND F/O/SWTG (23WT2) is not tripped or faulty
(1) If the fault continues:
- replace the P/BSW-PFD/ND XFR, F/O (9WT2).
(2) If the fault continues:
- replace the RELAY BOX-F/O PFD-ND XFR (20WT2).
(3) If the fault continues:
- do a check and repair the wiring from F/O PFD/ND XFR pushbutton switch (9WT2) pins 1, 2 to F/O PFD-ND transfer relay box (20WT2) pin 1D, X2.
R **ON A/C 401-499,
A. If the EIS-DMC selector switch (18WT) is at NORM and you cannot get the image on the F/O ND DU:
- do a check for a ground signal at the pin AB-2K of the DMC2 (1WT2)
(1) If there is a ground signal:
- replace the DMC-2 (1WT2) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(2) If there is no ground signal :
- do a check and repair the wiring from the pin AB-2K of the DMC2 (1WT2) to the first terminal block (Ref. ASM 31-68/01)
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-63-82∞∞∞∞∞∞∞∞∞∞Page 239
Aug 01/05 CES
B. If the EIS-DMC selector switch (18WT) is at F/O/3 and you cannot get the image on the F/O ND DU:
- do a check for a ground signal at the pin AB-2K of the DMC3 (1WT3)
(1) If there is a ground signal:
- replace the DMC-3 (1WT3) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(2) If there is no ground signal :
- do a check and repair the wiring from the pin AB-2K of the DMC3 (1WT3) to the first terminal block (Ref. ASM 31-68/01)
C. If you cannot get the image at the F/O ND DU when the EIS DMC selector switch is at NORM or at F/O/3 position:
- do a check for a ground signal at the pin 2 of the F/O PFD/ND XFR pushbutton switch (9WT2)
(1) If there is no ground signal :
- do a check and repair the wiring from the pin 2 of the F/O PFD/ND XFR (9WT2) to the first terminal block (Ref. ASM 31-68/01)
(2) If there is a ground signal:
- do a check and repair the wiring from the pin 1 of the F/O PFD/ND XFR (9WT2) to the first terminal block (Ref. ASM 31-68/01)
(a) If the wiring is correct:
- replace the P/BSW-PFD/ND XFR, F/O (9WT2)
**ON A/C ALL
D. Push the F/O PFD/ND XFR pushbutton switch (9WT2) and make sure that the transfer is possible.
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本文链接地址：A320 Trouble Shooting Manual 排故手册 指示和记录系统 3(112)
