Transfer of the F/O PFD Image on the F/O ND not Possible

TASK 31-63-82-810-810-A
Transfer of the F/O PFD Image on the F/O ND not Possible

1. Possible Causes

P/BSW-PFD/ND XFR, F/O [9WT2]
RELAY BOX-F/O PFD-ND XFR (20WT2)
wiring
DMC-2 [1WT2]
DMC-3 [1WT3]

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
AMM 31-63-34-400-001	Installation of the DMC
ASM 316801

3. Fault Confirmation
Subtask 31-63-82-865-051-A

A. Table of the circuit breakers used in this procedure:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
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

Subtask 31-63-82-860-068-A

B. Job Set-up
(1) Do the EIS start procedure (F/O PFD and F/O ND only) AMM 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.

Subtask 31-63-82-700-068-A

C. Test
Make sure that the transfer is not possible.

4. Fault Isolation
Subtask 31-63-82-810-067-A ** ON A/C NOT FOR ALL

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.

Subtask 31-63-82-810-067-B ** ON A/C NOT FOR ALL

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] AMM 31-63-34-000-001 and AMM 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 ASM 316801

Subtask 31-63-82-810-128-A ** ON A/C NOT FOR ALL

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] AMM 31-63-34-000-001 and AMM 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 ASM 316801

Subtask 31-63-82-810-129-A ** ON A/C NOT FOR ALL

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 ASM 316801

(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 ASM 316801

(a) If the wiring is correct:

replace the P/BSW-PFD/ND XFR, F/O [9WT2]

Subtask 31-63-82-700-069-A

D. Push the F/O PFD/ND XFR pushbutton switch (9WT2) and make sure that the transfer is possible.

5. Close-up
Subtask 31-63-82-860-069-A

A. Do the EIS stop procedure AMM 31-60-00-860-002.

[Rev.8 from Aug 2018] 2026.04.04 04:31:15 UTC